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1-20 of 879 results with category "Critical Care"

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Title: Therapeutic AC May Shorten Time to Resolution of Acute Chest Syndrome in Adults

Category: Critical Care

Keywords: acute chest syndrome, microthrombi, pulmonary vasoocclusion, sickle cell disease, anticoagulation (PubMed Search)

Posted: 7/21/2026 by Jessica Downing, MD

A multicenter double-blind RCT published in 2025 found that adult patients hospitalized with acute chest syndrome (ACS) who received 7 days of prophylactic therapeutic anticoagulation had a shorter time to ACS resolution (by approx 1 day) and reduced opioid consumption when compared to those receiving standard VTE prophylaxis.

Show Additional Information

Acute Chest Syndrome (ACS) is known to be associated with severe pulmonary vascular dysfunction. Prior studies have identified local vaso-occlusion leading to pulmonary infarct as the underlying etiology of up to 16% of ACS episodes, and have demonstrated relatively high rates of PE and pulmonary microthrombi. 

The TASC (Therapeutic Anticoagulation for Acute Chest Syndrome in Sickle Cell Disease) trial randomly assigned adult patients hospitalized for acute chest syndrome with no PE on CTA to prophylactic or therapeutic low-molecular weight heparin for 7 days or until hospital discharged. 172 patients were randomized - 84 in the prophylactic-dose group and 88 in the therapeutic-dose group. Patients in the therapeutic-dose group had a shorter time to ACS resolution (4.8?±?0.4 days vs. 6.1?±?0.5 days, HR 0.71; 95% CI 0.51–0.99; P?=?0.044 ). There were no major bleeding events in either group. The therapeutic dose group used an almost 45% lower cumulative dose of parenteral opioids (124 vs 219 morphine equivalent units, difference ?96; 95% CI ?202 to ?46; P?=?0.02).

Details:

  • ACS was defined by: new pulmonary infiltrate on CXR or CT AND respiratory symptom (s) OR abnormality on pulmonary auscultation
  • ACS resolution was defined by “joint improvement of four criteria, including fever, chest pain, dyspnea, and hypoxemia.” The hypoxemia component was excluded in the 62% of patients who were not hypoxemic at baseline. 
  • Study setting: across 12 health centers in France from 2016-2021.
  • Key exclusion criteria: 
    • Age < 18
    • ACS diagnosed >48h prior
    • Body weight <40kg or >100kg
    • CrCl <60 ml/min (if enrolled, treatment was discontinued if a patient developed severe AKI with CrCl <30 ml/min)
    • RBC transfusion “deemed highly risky”
    • Interestingly, the presence or absence of active COVID infection was not discussed
  • The anticoagulation used here was tinzaparin (a type of  low-molecular-weight heparin that is FDA approved but has been discontinued in the US; it has a higher molecular weight and greater anti-thrombin activity than enoxaparin). Prophylactic dosing was 4500 IU/24h and therapeutic dosing was 175 IU/kg/24h (both standard dosing for their indications).

Show References

Mekontso Dessap A, Habibi A, Arlet JB, Fartoukh M, Guerin L, Guillaud C, Roux D, Oziel J, Ngo S, Carpentier B, Lopez-Sublet M, Affo L, Melica G, Etienne-Julan M, Delacroix I, Lionnet F, Loko G, Da Silva D, Michel M, Razazi K, Charles-Nelson A, Bartolucci P, Gendreau S, Katsahian S, Maitre B. Comparison of Prophylactic and Therapeutic Doses of Anticoagulation for Acute Chest Syndrome in Sickle Cell Disease: The TASC Double-Blind Controlled Randomized Clinical Trial. Am J Respir Crit Care Med. 2025 May;211(5):832-841. doi: 10.1164/rccm.202409-1727OC. PMID: 40209087.



Title: What factors mean badness for patients with necrotizing fasciitis

Category: Critical Care

Posted: 7/7/2026 by Quincy Tran, MD, PhD (Updated: 7/21/2026)

University of Maryland Medical Center is a referral center for patients with necrotizing fasciitis in the region, as we have a major hyperbaric chamber, and a specialized Soft Tissue Surgery team. Therefore, patients with soft tissue infection make up a group with frequent transferring to UMMC.

Some of the factors, from recent meta-analysis, suggest higher rate of mortality among this particular group of patients. When they display these factors, which are also consistent with our clinical observations,  we should be more aggressive with their treatment:

Acute kidney injury   OR   3.23 (2.76–5.04)

Bacteremia                    OR  3.89 (1.39–10.85)

Hypotension                 OR  1.97 (1.26–3.10)

Coagulopathy              OR    2.81 (1.23–6.40)

Show References

Kruger N, Durr K, Fernando SM, Rochwerg B, Inaba K, Kim D, Yadav K, Kubelik D, Engels PT, Glen P, Tran A. Prognostic Factors Associated With Mortality Among Patients With Necrotizing Soft-Tissue Infection: A Systematic Review and Meta-Analysis. Crit Care Med. 2026 Jul 1;54(7):1779-1787. doi: 10.1097/CCM.0000000000007147. Epub 2026 May 15. PMID: 42138515.



Title: Airway Management in Critically Ill Patients with Obesity

Category: Critical Care

Posted: 6/30/2026 by Caleb Chan, MD (Updated: 7/21/2026)

FRC is key in obesity.

Show Additional Information

Functional residual capacity (FRC) is the volume left in the lungs at the end of a tidal volume breath. One way to think about FRC is as a reservoir of oxygen that continues to supply gas exchange even after a patient stops breathing (i.e. after RSI). The rate of oxygen consumption (VO2) determines how quickly this reservoir gets depleted (safe apnea time). FRC is significantly decreased in obesity. VO2 is also higher in obese patients. Both of these factors decrease the length of safe apnea time in obese patients. 

Consequently, pre-oxygenation with NIPPV and/or BVM with PEEP is key to increasing FRC and as a result, the safe apnea time while intubating obese patients.

Show References

Russotto V, Casey JD, Myatra SN, et al. Airway management in critically ill patients with obesity. Intensive Care Med. 2026;52(6):1256-1268. doi:10.1007/s00134-026-08454-x



Title: Calcium supplementation following Trauma

Category: Critical Care

Posted: 6/23/2026 by William Teeter, MD

Taking a slight detour into the trauma critical care realm today…

BLUF: Favor aggressive calcium supplementation following trauma, especially when patient requires transfusion. Recent evidence is pointing towards a signal for improved outcomes.

Hypocalcemia in trauma is common. Roughly half to two-thirds of trauma patients are hypocalcemic on arrival, driven by both shock physiology and citrate chelation from blood products. Some authors advocate for hypocalcemia to be added as the fourth element of a "lethal diamond" alongside coagulopathy, acidosis, and hypothermia. See reference 1&2 for good discussions of this physiology.

Time for a grain of salt: A recent article in JTACS advocates for favoring calcium chloride during whole-blood or massive transfusion and was associated with improved early survival. Calcium chloride at a threshold of at least 1 g per 2 units of low-titer O whole blood was independently associated with an 84% (!) reduction in 24-hour mortality, with the benefit strongest at this 1:2 ratio and weaker at less aggressive thresholds. (LOTS of caveats with this finding, but interesting nonetheless).

Current major civilian guidelines say only that hypocalcemia should be prevented, with limited specificity on timing or dose, and the Joint Trauma System recommends 1 g calcium after the first unit and after every fourth unit thereafter. The current CAVALIER trial is evaluating prehospital calcium specifically. Those results and other recent literature could push major trauma organizations to update their recommendations in the near future.

Show References

https://pubmed.ncbi.nlm.nih.gov/41995161/

https://pmc.ncbi.nlm.nih.gov/articles/PMC13082262/

https://clinicaltrials.gov/study/NCT05958342



Title: Corticosteroids in Cardiogenic Shock

Category: Critical Care

Keywords: shock, cardiogenic shock, corticosteroids (PubMed Search)

Posted: 6/16/2026 by Mark Sutherland, MD (Updated: 7/21/2026)

There were a handful of big name critical care studies published the last few weeks (LOGICAL, ARISE FLUIDS, SODa-BIC to name a few) but many of you probably already saw those so we're gonna stick with something a little more off the beaten path.

A retrospective observation trial was published recently by Gastanadui et al in Journal of Intensive Care looking at the mortality impact of corticosteroids in cardiogenic shock.  They looked at 167,721 patients from the Vizient database admitted with cardiogenic shock (excluded patients with other indications for steroids).  The unadjusted mortality was a whopping 48.8% in the steroid group and 29.6% in the non-steroid group.  They did Inverse Probability Treatment Weighting (IPTW), which attempts (imperfectly, but best as you can retrospectively) to control for treatment selection bias, and still found a roughly 3% mortality increase in the steroid group.

Bottom Line: Corticosteroids were already controversial (at best) in cardiogenic shock, but this further adds to the reasons to avoid them in this condition.  Of note, this trial excluded patients with classic hard-indications (e.g. adrenal insufficiency, COPD exacerbation, etc) and steroids should still be given to those groups, but in my opinion if you feel cardiogenic is the primary driver of the patient's shock and they do not have another indication, I would consider avoiding steroids solely for the shock.

Show Additional Information

Show References

Gastanadui MG, Murphy HR, Shahu A, Safiriyu I, Heck C, Hysolli M, Callegari S, Garimella S, Ali T, Jentzer JC, Gage A, Jacobs M, Katz JN, Miller PE. Early Corticosteroid use and Clinical Outcomes in Patients with Mixed and Cardiogenic Shock. J Intensive Care Med. 2026 Jun 1:8850666261437767. doi: 10.1177/08850666261437767. Epub ahead of print. PMID: 42223374.



Title: Can Lactate Lie?: Common Pitfalls with Lactate Interpretation

Category: Critical Care

Keywords: lactate, fluids, resuscitation, sepsis, septic shock (PubMed Search)

Posted: 6/12/2026 by Zach Wynne, MD

Bottom Line: Lactate is a useful but imperfect marker of critical illness. Below are some key points to consider when interpreting lactate.

  1. Lactated ringers should generally not significantly increase your measured lactate unless there is poor clearance (liver injury).
  2. Many medications can cause an elevation in lactate through multiple mechanisms that do not improve with fluid resuscitation.
  3. Lactate should be interpreted within the company it keeps (history, exam, vitals, urine output, hemodynamics).

Show Additional Information

Lactate is one of the most commonly used lab markers used in the emergency department to identify critically ill patients. However, the lactate is often used in isolation which leads to potentially excessive fluid administration (previously identified by cited physicians as the “Lacto-Bolo reflex”). Some studies have demonstrated signal towards harm in excessive fluid resuscitation. Additionally, an elevated lactate can sometimes be representative of an etiology that requires alternative treatment to fluids (mesenteric or limb ischemia, severe anemia, and others). Therefore, it is important to use the lactate in context with other clinical data (vitals, urine output, hemodynamics, etc) to determine need for fluid resuscitation.

Below are some common pitfalls with lactate management to consider on your next shift:

“I can't give Lactated Ringer's solution if I'm measuring lactates!?”

The human body makes 20 mmol/kg/day of lactate under normal conditions. A liter of lactated ringers contains 28 mmol/liter of lactate. This means three liters of lactated ringer's would be only about 5% of normal lactate in a 70 kg person. With normal clearance this is unlikely to have a clinically significant effect unless there is issue with clearance (liver injury). This was demonstrated in a study by Zitek et al that showed lactated ringer's and normal saline boluses had similar effects on lactate concentration.

"Medications rarely cause lactate elevation"

While lactate elevations are often ascribed to anaerobic metabolism (leading to pyruvate being metabolized into lactate), there are other mechanisms through which lactate elevation occurs including (with a few associated medications):

  • Increased sympathetic stimulation (leads to excess pyruvate, causing lactate elevation) - albuterol, epinephrine, sympathomimetics
  • Increased NADH/NAD ratio - ethanol, toxic alcohols
  • Blockage of electron transport chain in mitochondria (prevents aerobic metabolism) - metformin, propofol (esp with propofol related infusion syndrome)

While lactate is a useful screening marker, it is not helpful in isolation alone and requires trending as well as clinical context. So next time you see an elevated lactate, think BEFORE you bolus.

Show References

  1. Spiegel R, Gordon D, Marik PE. The origins of the Lacto-Bolo reflex: the mythology of lactate in sepsis. J Thorac Dis. 2020 Feb;12(Suppl 1):S48-S53.
  2. Wardi G, Brice J, Correia M, Liu D, Self M, Tainter C. Demystifying Lactate in the Emergency Department. Ann Emerg Med. 2020 Feb;75(2):287-298. doi: 10.1016/j.annemergmed.2019.06.027. Epub 2019 Aug 29. Erratum in: Ann Emerg Med. 2020 Apr;75(4):557.
  3. Garcia-Alvarez M, Marik P, Bellomo R. Sepsis-associated hyperlactatemia. Crit Care. 2014 Sep 9;18(5):503.
  4. Zitek T, Skaggs ZD, Rahbar A, Patel J, Khan M. Does Intravenous Lactated Ringer's Solution Raise Serum Lactate? J Emerg Med. 2018 Sep;55(3):313-318.


Title: Bicarbonate for metabolic acidosis

Category: Critical Care

Keywords: Bicarbonate, metabolic acidosis (PubMed Search)

Posted: 5/26/2026 by Quincy Tran, MD, PhD

Sodium bicarbonate significantly reduced the need of renal replacement therapy (risk ratio [RR] 0.69; 95% CI, 0.61–0.78) but not mortality (RR, 0.84; 95% CI, 0.55–1.30). However, there was not enough sample size to support the outcome of mortality.

There was still significant heterogeneity between studies as the sources of metabolic acidosis were different between different studies in this meta-analysis study of randomized control trial. One study recruited patients with septic shock only, while other studies enrolled patients with different disease states.
There was also heterogeneity in the threshold for pH to enter the study.

Show References

Sodium Bicarbonate for Acute Metabolic Acidosis in Critically Ill Adults: A Meta-Analysis of Randomized Clinical Trials. Chen, Jia-Jin MD; Lee, Tao-Han MD; Chang, Chih-Hsiang MD, PhD, Lai, Pei-Chun MD, PhD; Tu, Yu-Kang PhD; Huang, Yen-Ta MD, MSc, PhD. Critical Care Medicine ():10.1097/CCM.0000000000007179, May 22, 2026. | DOI: 10.1097/CCM.0000000000007179



Title: The 2026 Acute PE Guidelines

Category: Critical Care

Keywords: Pulmonary embolism, massive PE, submassive PE, RV failure, cardiogenic shock, guidelines (PubMed Search)

Posted: 5/19/2026 by Kami Windsor, MD

Not all patients with an acute PE will be crashing and critically ill, but it seemed worthwhile to remind everyone that there are new guidelines and recommendations from AHA/ACC/ACCP/ACEP/CHEST/SCAI/SHM/SIR/SVM/SVN/XYZLMNOP about the management of patients with acute pulmonary embolism in the 2026 AHA/ACC Joint Committee statement.  A few key takeaways, with highlights for the sicker PE patients: 

  1. New Classifications A through E for acute PE (see images below)
    • Get familiar with the clinical scores! Hestia, PE Severity Index (PESI), simplified PESI (sPESI)
    • ED discharge recommended for Category A and supported for Category B
  2. LMWH recommended over unfractionated heparin when parenteral AC is needed, unless contraindicated
  3. DOACs recommended over warfarin unless contraindicated

Highlights for the sicker PE patients, i.e. Categories C+:

  • Get a look at the RV! (POCUS, CT, formal echo)
    • Further stratify Category C patients/identify Category D earlier
    • Find out how close to decompensation the patient might be
    • Inform your management if the patient decompensates
      • For PE patients with e/o RV strain (C2+ per this document; for me, particularly those C3+ with respiratory complaints as a marker of poor pulmonary perfusion, or Category D+), consider use of inhaled vasodilators
  • Be careful with any sedation even if normotensive – decreasing preload / blunting the body's compensatory adrenergic response can be disastrous, have hemodynamic support available
  • If you have to intubate, choose induction meds wisely and have hemodynamic support ready
  • For patients with Category D-E acute PE:
    1. Norepinephrine = initial vasopressor of choice for hypotension due to modest inotropic effects; max at 15mcg/min due to effects on pulmonary vascular resistance at higher doses, if second vasopressor needed, reach for vasopressin
    2. Dobutamine as additional inotropic support OR for normotensive shock 
    3. Avoid fluid boluses unless patient is also hypovolemic, and then give small boluses (250mL) only
  • Consider advanced therapies for Category D and particularly E
  • PE Response Team (PERT) Consultation recommended – and depending on where you practice, can help get the patient transferred if advanced therapies are an option

For a great breakdown and further discussion of the new guidelines, I recommend checking out the Life in the Fast Lane blogpost here.

Show References

Creager MA et al. 2026 AHA/ACC/ACCP/ACEP/CHEST/SCAI/SHM/SIR/SVM/SVN Guideline for the Evaluation and Management of Acute Pulmonary Embolism in Adults: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines. Circulation. 2026 Mar 24;153(12):e977-e1051.



Title: Can Abx at Intubation Prevent VAP?

Category: Critical Care

Keywords: ventilator associated pneumonia, intubation, stroke, brain injury, antibiotics (PubMed Search)

Posted: 5/12/2026 by Jessica Downing, MD

Should we give a dose of antibiotics after intubating to reduce risk of VAP down the line? A multicenter RCT conducted in 2024 - the PROPHY-VAP Trial - found that a single dose of 2g ceftriaxone administered within 12 hours of intubation reduced VAP within the first week of hospitalization for patients intubated for airway protection due to TBI, stroke or SAH, with a VAP rate of 14% in the CTX group vs 32% in the VAP group (HR 0.60; 95% CI 0.38-0.95).

Click the link below for details and additional discussion

Show Additional Information

Details:

  • The PROPHY-VAP trial included 345 patients across 9 university-affiliated ICUs in France.
  • Inclusion:
    • Intubation for airway protection in the setting of neurologic injury, defined as TBI, ischemic or hemorrhagic stroke, or SAH
    • Intubation <12h and hospitalized <48h at the time of randomization
    • Expected mechanical ventilation >48h
    • No pre-existing infection or antibiotic therapy
  • Exclusion:
    • Hospitalization within 30d
    • Beta lactam allergy
  • Patients: Well-matched between groups, mostly hemorrhagic insults (hemorrhagic stroke, SAH, TBI), all with GCS <12 and majority GCS 4-8. 
  • Intervention: Single dose of CTX 2g IV. Mean time from intubation to antibiotics was 7h.
  • Primary Outcome: Early VAP (2-7d after intubation) was less common in the CTX group (14% vs. 32%; HR 0.60; 95% CI 0.38-0.95, p = 0.03).
  • Secondary Outcomes: The CTX group had more antibiotic-free and ventilator-free days, lower mortality, and lower incidence of VAP at 28d.
  • Safety Outcomes: C diff and MDR organism infection were not more common in the CTX group

Background: prior studies have investigated different antibiotic regimens in different groups. In 2023, the AMIKIHAL trial suggested that a 3d course of inhaled amikacin would reduce 28d risk of VAP among patients ventilated for >3d (not just neuro patients). In 2022, the SuDDICU trial suggested that “selective decontamination of the digestive tract” with a combination of IV abx, oral suspension of antibiotics, and topical abx to the oropharynx and buccal mucosa suggested a lower risk of in-hospital mortality in Baysian meta-analysis (though not in the primary study statistics). In 2005, the ANTHARTIC trial suggested a lower rate of VAP with a 2 days course of amoxicillin-clavulanate among patients admitted after OHCA.

Closing Thoughts: Together, these studies suggest that there may be a role for an early and short course of antibiotics for preventing VAP in a few patient populations. A single dose of CTX is easier and more benign than prior suggested regimens, and based on the available data, seems to offer benefit with minimal risk.

Show References

Dahyot-Fizelier C, Lasocki S, Kerforne T et al. Ceftriaxone to prevent early ventilator-associated pneumonia in patients with acute brain injury: a multicentre, randomised, double-blind, placebo-controlled, assessor-masked superiority trial. The Lancet Respiratory Medicine, 2024; 12, 375-385

Additional References

  1. Ehrmann S, Barbier F, Demiselle J, Quenot JP, Herbrecht JE, Roux D, Lacherade JC, Landais M, Seguin P, Schnell D, Veinstein A, Gouin P, Lasocki S, Lu Q, Beduneau G, Ferrandiere M, Plantefève G, Dahyot-Fizelier C, Chebib N, Mercier E, Heuzé-Vourc'h N, Respaud R, Gregoire N, Garot D, Nay MA, Meziani F, Andreu P, Clere-Jehl R, Zucman N, Azaïs MA, Saint-Martin M, Gandonnière CS, Benzekri D, Merdji H, Tavernier E; Reva and CRICS-TRIGGERSEP F-CRIN Research Networks. Inhaled Amikacin to Prevent Ventilator-Associated Pneumonia. N Engl J Med. 2023 Nov 30;389(22):2052-2062. 
  2. The SuDDICU Investigators for the Australian and New Zealand Intensive Care Society Clinical Trials Group. Effect of Selective Decontamination of the Digestive Tract on Hospital Mortality in Critically Ill Patients Receiving Mechanical Ventilation: A Randomized Clinical Trial. JAMA. 2022;328(19):1911–1921. doi:10.1001/jama.2022.17927
  3. Acquarolo A, Urli T, Perone G, Giannotti C, Candiani A, Latronico N. Antibiotic prophylaxis of early onset pneumonia in critically ill comatose patients. A randomized study. Intensive Care Med. 2005 Apr;31(4):510-6. doi: 10.1007/s00134-005-2585-5. Epub 2005 Mar 8. PMID: 15754197.


Title: P:F vs S:F Ratio

Category: Critical Care

Keywords: Oxygenation, ARDS, P:F Ratio, S:F Ratio, Hypoxia, Mechanical Ventilation (PubMed Search)

Posted: 4/21/2026 by Mark Sutherland, MD (Updated: 7/21/2026)

PaO2 to FiO2 (P:F) ratios, are often considered the gold standard in critical care for assessing the degree of oxygen-refractory hypoxia in various pathologies, particularly ARDS.  P:F does have some limitations, including not accounting for the PEEP, but probably the most limiting is that it requires collecting an ABG, which is invasive and not always feasible or a top priority when resuscitating a critically ill hypoxic patient.  On the other hand, SpO2 (pulse ox saturation) is routinely available, and of course the FiO2 should be known, so many have suggested perhaps using an SpO2 to FiO2 (S:F) ratio instead.  But how S:F maps to P:F and how well they correlate is not fully known.  Chaudhuri et al recently conducted a meta-analysis, published in Critical Care Medicine this month, which reviewed the literature on this. 

Bottom Line: Yes, S:F ratios correlate well with P:F ratios, especially when the SpO2 is less than 97%, but you can't just substitute the S:F for P:F, you have to use one of the accepted formulas.  See additional info on the website for the actual formula to apply and how a given S:F translates to P:F.

Show Additional Information

The authors identified 4 particularly high performing formulas from well-done studies.  One was logarithmic, and two were non-linear, making the math hard, so the best is probably the linear one (correlation coefficient was 0.89, which is quite good).  It is:

SF = 64 + 0.84 x PF

Usually you have the SF and want to figure out the PF, so rearranging to solve for PF (to save you all the trouble):

PF = (SF - 64) / 0.84

Since we usually care about P:F < 300 (mild ARDS), < 200 (moderate ARDS), and < 100 (severe ARDS), here are the S:F mappings for those P:Fs to make things super simple:

If P:F is 300 then S:F is 315

If P:F is 200 then S:F is 235

If P:F is 100 then S:F is148

And 150 is another P:F that is important since we often consider proning and/or paralysis under this level.  That would equate to an S:F of 190 using this formula.

Don't forget!  The SpO2 is expressed as a percentage, and FiO2 as a decimal.  So for example, for a patient with a sat of 97% on RA (21% FiO2):

97 / 0.21 = 461 would be their S:F.

Show References

Chaudhuri D, Lazarte J, Shah K, Pitre T, Pekkarinen PT, Sendagire C, Martin GS, Jung C, Laffey JG, Rochwerg B; Sequential Organ Failure Assessment (SOFA)-2 study group. Approaches to Converting Sp o2 /F io2 Ratio to Pa o2 /F io2 Ratio for Assessment of Respiratory Failure in Critically Ill Patients: A Systematic Review. Crit Care Med. 2026 Apr 1;54(4):950-959. doi: 10.1097/CCM.0000000000007018. Epub 2026 Jan 2. PMID: 41493393.



Title: More Protein or More Water?: Albumin vs. Crystalloid in Septic Shock

Category: Critical Care

Keywords: albumin, sepsis, septic shock, crystalloid, resuscitation (PubMed Search)

Posted: 4/14/2026 by Zach Wynne, MD

Summary:

The recent ARISS (Albumin Resuscitation in Septic Shock) trial showed no difference in 90-day mortality or other secondary outcomes, similar to other trials comparing albumin and crystalloid. Notably however, the trial did not meet its predetermined enrollment requirement of patients (in the setting of the COVID-19 pandemic) and had a large portion of its intervention group failing to meet goal serum albumin level. 

The Bottom Line:

There remains no evidence-based mortality benefit of albumin over crystalloid in patients with septic shock that do not have additional indications for albumin (such as hepatorenal syndrome). Crystalloid resuscitation remains a staple of appropriate and cost-effective care in septic shock. Albumin can be considered on a case-by-case basis after standard crystalloid resuscitation in this clinical setting.

Show Additional Information

Background:

What is the ideal fluid for resuscitation in septic shock? Crystalloids or colloids, such as albumin?

Many trials have sought to prove albumin would be beneficial in septic shock. Some data has suggested an immune modulatory role of albumin. Additionally, albumin is thought to help maintain serum oncotic pressure to prevent further capillary leak in vasodilatory shock. A summary of some trials before ARISS are summarized below:

  • SAFE trial (2003) compared 4% albumin and normal saline in the ICU setting and found no mortality difference at 28 days except a higher mortality rate in subgroup of patients with TBI. 
  • CRISTAL trial (2013) looked at all crystalloids vs all colloids in septic shock in the ICU setting and found no difference in 28 day mortality. There was a non-statistically significant trend showing decreasing 90 day mortality with colloids.
  • ALBIOS trial (2014) compared 20% albumin (targeting albumin level of >3g/dL) to crystalloids in the ICU setting. There was no difference in 28 and 90 day mortality but a non-statistically significant trend showing early albumin having decreased mortality.
  • ICARUS-ED trial (2025) was a pilot RCT in the ED setting, comparing single 400 mL 20% albumin vs. crystalloids alone. There was no difference in SBP at 24 hours or mortality at 72 hours but a trend towards lower fluid volume and vasopressor use.

With this background, researchers in Germany sought to further evaluate albumin's role in septic shock resuscitation.

ARISS (Albumin Resuscitation in Septic Shock) Trial - Feb 2026

Patients: Adults admitted to ICUs in Germany from 10/2019 to 5/2022 that had probable or definitive evidence of infection for septic shock,  required vasopressors for at least one hour (MAP > 65 mmHg)?, had a lactate less than 18 mg/dL (2.0 mmol/L)?, and were enrolled within 24 hours of onset of septic shock. Exclusion criteria included patients that had a disease process that albumin is particularly harmful or advantageous (CHF, TBI, hepatorenal)?, pregnancy/lactation, alternative etiology of shock, and end of life care.

Intervention: All patients in intervention group received a 60-g loading dose of 20% albumin over 2-3 hours within 6-24 hrs after diagnosis of septic shock. Remainder of albumin administration was done by a resuscitation scheme to target an albumin greater than 3 g/dL while they remained alive and in the ICU.

Control: All patients in control group received crystalloid resuscitation but could receive albumin in certain situations deemed necessary (such as albumin < 1.5 g/dL).

Outcome: Primary outcome was 90-day all-cause mortality. Secondary outcomes included 28-day and 60-day mortality, ICU and hospital mortality, SOFA score change, ICU and hospital length of stay, ventilator-free and vasopressor-free days, and occurrence of adverse events.

Results: 440 patients were randomized, with 419 included in analysis. Albumin was administered in the intervention group for a median of 5 days. 15 patients received the full 28-day limit of protocol treatment with albumin. More than 50% of patients in the intervention group failed to achieve the target albumin level of greater than 3 g/dL. 90-day mortality by intention to treat analysis was 43.4% in the albumin group versus 45.9% in the control group (RR of 0.94 [95% CI, 0.76-1.17]) with no differences in subgroup analyzes. No secondary outcomes showed a statistically significant difference. There was no statistically significant difference in adverse events between groups.

Internal Validity: Enrollment did not meet need based on power calculation (estimated 1662 patients by their power calculation for a relative risk reduction of 15%. Factors affecting this included COVID-19 pandemic and a high exclusion rate for the trial enrollment of 72%. Additionally, many patients in the control group received albumin. The researchers additionally did a per-protocol analysis which also showed no statistically significant difference.

Ending Thoughts: This was a well designed trial combining elements of trials comparing albumin to crystalloids previously and using albumin to reach a defined target, similar to the ALBIOS trial. However, the lack of enrollment and not meeting their predetermined power calculation likely contributed to the results found in this trial. The trial leaves unanswered questions about albumin's role in septic shock, particularly with earlier timing and a clear concentration target.

Show References

  1. Finfer S, Bellomo R, Boyce N, French J, Myburgh J, Norton R; SAFE Study Investigators. A comparison of albumin and saline for fluid resuscitation in the intensive care unit. N Engl J Med. 2004 May 27;350(22):2247-56. doi: 10.1056/NEJMoa040232. PMID: 15163774.
  2. Annane D, Siami S, Jaber S, Martin C, Elatrous S, Declère AD, Preiser JC, Outin H, Troché G, Charpentier C, Trouillet JL, Kimmoun A, Forceville X, Darmon M, Lesur O, Reignier J, Abroug F, Berger P, Clec'h C, Cousson J, Thibault L, Chevret S; CRISTAL Investigators. Effects of fluid resuscitation with colloids vs crystalloids on mortality in critically ill patients presenting with hypovolemic shock: the CRISTAL randomized trial. JAMA. 2013 Nov 6;310(17):1809-17. doi: 10.1001/jama.2013.280502. Erratum in: JAMA. 2013 Mar 12;311(10):1071. Régnier, Jean [corrected to Reignier, Jean]; Cle'h, Christophe [corrected to Clec'h, Christophe]. PMID: 24108515.
  3. Caironi P, Tognoni G, Masson S, Fumagalli R, Pesenti A, Romero M, Fanizza C, Caspani L, Faenza S, Grasselli G, Iapichino G, Antonelli M, Parrini V, Fiore G, Latini R, Gattinoni L; ALBIOS Study Investigators. Albumin replacement in patients with severe sepsis or septic shock. N Engl J Med. 2014 Apr 10;370(15):1412-21. doi: 10.1056/NEJMoa1305727. Epub 2014 Mar 18. PMID: 24635772.
  4. Williams JM, Greenslade JH, Hills AZ, Ray MT. Intervention With Concentrated Albumin for Undifferentiated Sepsis in the Emergency Department (ICARUS-ED): A Pilot Randomized Controlled Trial. Ann Emerg Med. 2025 Jul;86(1):59-69. doi: 10.1016/j.annemergmed.2024.12.016. Epub 2025 Jan 23. PMID: 39846907.
  5. Sakr Y, Nierhaus A, Schumacher U, Utzolino S, Jaschinski U, Petros S, Fichtner F, Eimer C, Putensen C, Tanev I, Kreienbühl L, Kluge S, Kousoulas L, Kuhn SO, Jarczak D, Quintel M, Bauer M; SepNet Critical Care Trials Group and Albumin Replacement Therapy in Septic Shock (ARISS) investigators. Albumin Replacement Therapy in Septic Shock: A Randomized Clinical Trial. JAMA Netw Open. 2026 Feb 2;9(2):e2559297. doi: 10.1001/jamanetworkopen.2025.59297. PMID: 41712212; PMCID: PMC12921518.


Title: High-Flow or Standard Oxygen for Acute Hypoxemic Respiratory Failure?

Category: Critical Care

Posted: 4/7/2026 by Mike Winters, MBA, MD

In a large, randomized trial conducted in 42 ICUs in France, high-flow oxygen did not reduce 28-day all-cause mortality in adult patients with acute hypoxemic respiratory failure when compared to standard oxygen support.

Show Additional Information

The SOHO Trial

  • An investigator-initiated, open-label RCT
  • Conducted in 42 ICUs in France
  • Included adult patients who were admitted to the ICU with acute hypoxemic respiratory failure
  • Excluded patients with a COPD exacerbation, chronic lung disease, acute cardiogenic pulmonary edema, hemodynamically unstable, or those who needed emergent intubation.
  • Patients were randomized to either a High-Flow oxygen group or a Standard oxygen group.
  • The primary outcome was 28-day all-cause mortality.
  • Secondary outcomes included intubation by day 28, ventilator free days, ICU mortality, in-hospital mortality, 90-day mortality, and ICU/hospital LOS.
  • A total of 1,110 patients were included in the intention-to-treat analysis.  The High-Flow group had 556 patients and the Standard group had 554 patients.
  • The primary outcome occurred in 14.6% of patients in the High-Flow group and in 14.6% of patients in the Standard group.
  • With respect to secondary outcomes, the incidence of intubation at day 28 was lower in the High-Flow group.  In addition, the high-flow appeared to reduce dyspnea scores, and improve respiratory rates and CO2 values.
  • Limitations of the SOHO trial included a lower than expected mortality (underpowered) and a high percentage of patients with viral pneumonia.


Title: New Risk Classification for PE from 2026 Guidelines

Category: Critical Care

Posted: 3/30/2026 by Jessica Downing, MD

The 2026 Acute Pulmonary Embolism Guidelines recommend a new approach to risk stratification of patients with acute PE, including measurement of at least one cardiac biomarker and serum lactate, evaluation of RV size and function with CTA or echo (preferred when feasible), and multidisciplinary PERT assessment for all patients with acute PE and elevated clinical severity scores to assist with further risk stratification.

Show Additional Information

Initial management strategies are based on these risk classifications. Inclusion of assessment of clot burden into risk stratification and management decisions is not recommended.

From a critical care perspective, we are most interested in patients in Classes C, D, and E. 

  • Class C: Normotensive but with elevated risk stratification scores (Bova, PESI, ePESI, and Hestia) with or without abnormal RV size or function on CT or echo (echo preferred when feasible), elevated biomarkers of cardiopulmoary dysfunction (trop, BNP)
  • Class D: “Pre-cardiopulmonary failure states,” including transient hypotension (for example, improving after a small IVF bolus) or normotensive shock (indicated by persistent lactate elevation >2, acute AKI,  UOP <720mL/24h, CI <2.2, or other marker of persistent poor perfusion or end-organ dysfunction)..
  • Class E: Cardiopulmonary failure (historically “high risk” or “massive” PE) with persistent or recurrent hypotension, refractory cardiogenic shock, or arrest.
  • Each of these classes can also be tagged with a respiratory modifier: hypoxia or tachypnea with RR >30 for class C, need for >6L NC for D, or respiratory failure requiring NIV or IMV for E.

Initial Management:

  • Addressing the Clot:
    • LMWH for everyone Class C and above (though maybe UFH in arrest). Start AC before consulting PERT.
    • Consider systemic thrombolysis, catheter-directed lytics, or mechanical thrombectomy for patients in Class D or E1, and systemic thrombolysis for E2. (UMMC has been involved in trials for catheter directed lytics and mechanical thrombectomy recently, with more results expected soon)
  • Hemodynamic Support: 
    • Vasopressor and/or inotropic therapy for Class D2 and above
    • Consider VA-ECMO for Category E2 (note that systemic thrombolysis is not a contraindication to VA-ECMO - some centers are more liberal with VA-ECMO, including select patients with normotensive shock or shock)
  • Transfer
    • Hemodynamically stable patients with high risk PE may be considered for transfer to centers that can provide advanced therapies, including thrombectomy or VA-ECMO
    • Unstable patients should be stabilized prior to transfer

This infographic from the new guidelines summarizes treatment recommendations. Note that institution and system-specific guidelines and PERT approaches may not yet have shifted to use these criteria.

Show References

Creager MA, Barnes GD, Giri J, Mukherjee D, Jones WS, Burnett AE, Carman T, Casanegra AI, Castellucci LA, Clark SM, Cushman M, de Wit K, Eaves JM, Fang MC, Goldberg JB, Henkin S, Johnston-Cox H, Kadavath S, Kadian-Dodov D, Keeling WB, Klein AJP, Li J, McDaniel MC, Moores LK, Piazza G, Prenger KS, Pugliese SC, Ranade M, Rosovsky RP, Russo F, Secemsky EA, Sista AK, Tefera L, Weinberg I, Westafer LM, Young MN. 2026 AHA/ACC/ACCP/ACEP/CHEST/SCAI/SHM/SIR/SVM/SVN Guideline for the Evaluation and Management of Acute Pulmonary Embolism in Adults: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines. J Am Coll Cardiol. 2026 Feb 19:S0735-1097(25)10161-7. doi: 10.1016/j.jacc.2025.11.005. Epub ahead of print. PMID: 41712898.



Title: SIPE - A Review

Category: Critical Care

Keywords: immersion, SIPE, swimmer, swimming (PubMed Search)

Posted: 3/30/2026 by TJ Gregory, MD

Bottom Line: Swimming-Induced Pulmonary Edema (SIPE) AKA Immersion Pulmonary Edema is a rare, though life-threatening pathology associated with water-based activities, especially among athletes or military personnel. Caused by physiologic effects of immersion, not from aspiration/ingestion. Consider in any patient with respiratory distress or chest discomfort onset during water activities such as swimming, diving, etc. Diagnose with physical exam and POCUS. Manage supportively, potentially including positive pressure ventilation. Screen for alternative diagnoses.

See the link for more thorough review of assessment diagnostics, pathophysiology, pharmacological options, risk factors, and long-term considerations.

Show References

https://doi.org/10.1177/10806032251414379

Steins H. Swimming-Induced Pulmonary Edema: A Scoping Review and Analysis of Epidemiology, Pathophysiology, Diagnostics, Management, and Implications for Resource-Limited Care of Patients. Wilderness & Environmental Medicine. 2026;0(0). doi:10.1177/10806032251414379



Title: Hot off the presses: Bullet Points for the 2026 Updated Surviving Sepsis Campaign Guidelines

Category: Critical Care

Keywords: Sepsis, Septic Shock, SSC, Surviving Sepsis Campaign (PubMed Search)

Posted: 3/24/2026 by Kami Windsor, MD (Updated: 3/24/2026)

Click the link for below to read the bulleted, abridged version of the Executive Summary of the Updated SSC Guidelines for Adults with Sepsis and Septic Shock 2026…

  • Strength of guidelines provided as conditional “suggestions” or strong “recommendations"
  • Amount of certainty given existing evidence (very low [VL], low, moderate)
    • Note “very low” certainty may simply indicate there isn't a study or any reliable data
  • Please refer to the article (linked in References) for given rationales from the SSC

Show Additional Information

New Statements for 2026:

  • Suggest using a standard sepsis screening tool over not  (VL cert)
  • Recommend initial MAP goal >65 over higher targets (moderate) 
    • Describes allowing a range within 5 mmHg… (so perhaps MAP 60-70 mmHg?)
  • For adults 65yrs+ still suggest MAP 60-65mmHg over higher ranges (low)
  • For likely septic shock if prehospital time is likely to be >60 min, suggests prehospital abx (VL)
    • Commented that this should only be w/ use of sepsis screening tool
  • Suggest empiric abx without anaerobic coverage unless there are risk factors for anaerobic infection (VL)
    • Okay to use ones with anaerobic coverage (such as piperacillin-tazobactam) if otherwise required for resistant infections
    • Risk factors listed: intraabdominal or gyn/OB source, necrotizing STI, HEENT infection, CNS abscess/empyema
  • Suggest empiric abx WITH anaerobic coverage if risk factors are there (VL)
  • Suggest selective decontamination of digestive tract  in mechanically-ventilated adults in units with low prevalence of antimicrobial resistance (moderate)
  • After acute resuscitation phase, ‘suggest” using active fluid removal (diuretics, dialysis, etc.) (VL)

Changes in Suggestion/Recommendations from 2021:

  • Suggest against using empiric antifungal (low certainty) instead of using empiric antifungal for those at risk
  • Suggest using either invasive or NIBP monitoring (VL) instead of recommending invasive monitoring in patients with septic shock
    • Still recommends invasive for intermediate-to-high dose pressors, escalating or multiple pressors, needing frequent  ABGs, or inconsistent NIBP measurements
  • Suggest using crystalloids alone over crystalloids with supplemental albumin (moderate) instead of conditional recommendation for albumin if large volumes of crystalloid given
    • Notes albumin may be appropriate for pts who have received a lot of crystalloid already or have cirrhosis, and to avoid in TBI patients

Changes in Strength of Recommendation or Evidence Certainty since 2021:

Upgrades

  • “Strong” recommendation (from “conditional”) for prolonged infusion maintenance beta-lactams after initial loading dose (moderate certainty)
  • “Strong” recommendation to deescalate abx to appropriate narrower therapy once bacteria/susceptibility profile is available (from “conditional”; VL)
  • “Moderate” certainty evidence for suggestion to use balanced crystalloids over 0.9% saline (from "low”)
  • “Low” certainty evidence suggestion to use dynamic measures (response to passive leg raise or test bolus using stroke volume, stroke volume variation, pulse pressure, or pulse pressure variation) to guide initial fluid resuscitation over physical exam or static measures alone (from “very low”)

Downgrades

  • “Conditional” suggestion (from recommendation) to use NE (norepinephrine) first over vasopressin (low cert) or Ang II (VL cert)
    • Strong rec to use NE first over dopamine/epi/selepressin still in place
  • “Very low” evidence for suggestion to add Epi if MAP inadequate despite NE and vasopressin (from “low”)
  • “Very low” certainty of evidence for suggestion to add dobutamine to NE, or use epinephrine alone, for pts with persistent shock & cardiac dysfunction despite adequate fluid resus and appropriate MAP
    • no guidance on dobutamine vs milirinone
  • “Low” certainty of evidence for suggestion for IV corticosteroids in septic shock (from “moderate”)

Otherwise the same:

  • Treat sepsis / septic shock immediately and as emergencies
  • Suggest at least 30mL/kg IV crystalloid in the first 3 hours for sepsis-related hypoperfusion/shock (low certainty) using adjusted or ideal BW in patients with BMI>30. 
  • Recommend abx within 1hr of recognition for probable/definite sepsis and for possible/definite septic shock (VL)
  • Suggest a time-limited course of investigation for possible sepsis and if infection likely, abx within 3 hrs (VL)

Show References

Prescott HC, Antonelli M, Alhazzani W, et al. Executive Summary: Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock 2026. Crit Care Med. 2026 Mar 23. doi: 10.1097/CCM.0000000000007089. Epub ahead of print.



Title: Esmolol or Landiolol for mortality of patients with sepsis.

Category: Critical Care

Keywords: landiolol, esmolol, mortality, sepsis, tachycardia (PubMed Search)

Posted: 3/17/2026 by Quincy Tran, MD, PhD (Updated: 7/21/2026)

Beta-blocker is used for tachycardia among patients with sepsis. Landiolol, a new beta-blocker with highly selective B1-agonist (ratio of B1:B2 250:1) has recently been approved for use. In a network meta-analysis comparing landiolol with esmolol (B1:B2 ratio 30:1), landiolol was associated with increased 28-day mortality (relative risk [RR], 1.57; 95% CI, 1.08–2.30). This result carried low certainty as there were not as many studies using landiolol and there was no direct comparison between landiolol versus esmolol.

Similarly, landiolol  was associated with higher norepinephrine requirements (mean difference [MD], 0.17 ?g/kg/min; 95% CI, 0.02–0.32). Again, there was no direct head-to-head comparison between landiolol versus esmolol.

Show References

Tang Z, Sun Q, Xu J, Yang Y, Peng F. Comparison of Esmolol Versus Landiolol on Mortality in Adult Patients With Sepsis: A Systematic Review and Network Meta-Analysis. Crit Care Med. 2026 Feb 1;54(2):324-334. doi: 10.1097/CCM.0000000000006966. Epub 2025 Nov 25. PMID: 41363997; PMCID: PMC12955956.



Title: Which to Wean First -- Norepinephrine or Vasopressin?

Category: Critical Care

Posted: 2/24/2026 by Mark Sutherland, MD

It is a common scenario in the ICU, and occasionally in the ED, to be asked which pressor you would like to wean first, norepinephrine or vasopressin.  This is mostly an “art not science” question, but is there a right answer?  Does picking one vs the other to wean first lead to less hypotension?

Bottom Line: This meta-analysis doesn't suggest that either the norepi-first or vasopressin-first strategies for vasopressor wean are associated with an increased incidence of hypotension, although the literature is mixed.  Whatever your current practice is, it's probably reasonable to stick with that.  See the additional information for my personal approach.

Show Additional Information

This meta-analysis looked at both observational studies and RCTs.  Interestingly, the observational studies suggested, with statistical significance, that weaning norepi first was associated with more hypotension, but the RCTs suggested the opposite (that weaning norepi first was associated with less hypotension).  When put together, the literature overall doesn't suggest a difference.  It remains unclear whether it's better to wean the norepinerphine first or vasopressin first.  

My personal practice is to:

  1. Review the vital signs and other data to attempt to ascertain to what degree the patient was a vasopressin responder.  Did their BP increase significantly after vaso was started?  Do they have conditions which suggest they may be vasopressin deficient (e.g. cirrhosis, central DI, older age, prolonged sepsis)?  If I think the vaso is a large part of why their BP improved, I may opt to wean it last.  If I feel their response to vaso was limited and/or they're unlikely to be vasopressin deficient, I may opt to wean it first.
  2. To what degree is the patient's BP marginal vs solid?  Keep in mind, in most units (including ours) the practice is to manage vasopressin as simply on/off, and not titrate by degrees.  So if their MAP is 66 and my goal is 65, turning the vaso totally off may cause problems.  In that case I may focus on the norepi (or go ahead and turn the vasopressin off but tell the nurse they can go up on the norepi if needed, depending on what my current norepi dose is).  But if their BP is more robust and they have some runway, especially if per #1 they don't seem too dependent on the vaso, I'm more inclined to go ahead and turn off the vaso.
  3. Is there some other reason I really like vasopressin in this patient?  The primary use case tends to be right heart dysfunction, as the lack of V1 receptors on the pulmonary vasculature mean vaso (unlike norepi/epi) increases SVR without increasing PVR.  I may be more interested in weaning the norepinephrine first if the patient has right heart issues (e.g. PE, pulmonary hypertension, decompensated RV failure).  It's also a (minor) consideration if they have an element of diabetes insipidus or hypernatremia and we're looking to control their sodium or urine output.  But that's a very minimal thought, as pressor-dose vasopressin doesn't impact electrolytes that much.
  4. All else being equal, as mentioned in #2, norepineprhine is usually titratable and vasopressin is usually not, plus vasopressin tends (in the US anyways) to be more expensive.  So if I'm truly ambivalent, I'll usually turn off the vasopressin first, and then attend to the norepinephrine.

Show References

Mallmann C, Silva LOJ, Oliveira MS, Galiotto TMB, Nedel WL, Moraes RB. Effect of norepinephrine versus vasopressin weaning on incidence of hypotension in septic shock patients: a systematic review and meta-analysis. Crit Care Sci. 2026 Feb 16;38:e20260197. doi: 10.62675/2965-2774.20260197. PMID: 41711789.

Effect of norepinephrine versus vasopressin weaning on incidence of hypotension in septic shock patients: a systematic review and meta-analysis - Search



Title: Baking Soda for the Brain?: Sodium Bicarbonate as a Hyperosmolar Therapy in TBI

Category: Critical Care

Keywords: Sodium, ICP, neurocritical care, sodium bicarbonate, bicarb, hyperosmolar (PubMed Search)

Posted: 2/17/2026 by Zach Wynne, MD

Bottom Line: Hypertonic sodium bicarbonate (8.4%) can be used judiciously as an alternative hyperosmolar therapy in the setting of increased intracranial pressure (ICP) or cerebral edema with impending herniation, particularly in setting of concomitant metabolic acidosis. Two 50 mL ampules of hypertonic sodium bicarbonate is the equivalent of approximately 200 mL of 3% sodium chloride (hypertonic saline).

Show Additional Information

Scenario: 

The CT scan on your patient presenting with altered mental status shows a large intraparenchymal hemorrhage with 8 mm of midline shift. Suddenly, the patient becomes bradycardic with irregular respirations. Examination shows aniscoria with a non reactive right pupil. You call for 3% sodium chloride (hypertonic saline) and mannitol but neither will arrive from pharmacy for the next 10 minutes. What can you do in the meantime?

Background: 

Sodium bicarbonate (commonly known as baking soda, NaHCO3) is a salt that acts as a weak base when dissolved in water. Clinically, it comes in two forms: hypertonic sodium bicarbonate (8.4% in 50 mL ampules) and isotonic sodium bicarbonate (1.3%, made with 3 ampules of hypertonic bicarbonate in one liter of D5 water).

Hyperosmolar therapy is often used to temporize patients in the setting of cerebral edema/increased ICP with concern for herniation syndrome (Cushing triad, aniscoria with non reactive pupil, posturing). This therapy will temporize patients for CT imaging and definitive management. Usual choices include 3% hypertonic saline or mannitol. The administration of these agents increases intravascular osmolality and theoretically causes solute drag to pull water out of organs, such as the brain, decreasing edema.

Hypertonic sodium bicarbonate can also function in this manner.  To compare osmolality:

  • Hypertonic sodium bicarbonate (8.4% NaHCO3) - 2000 mOsm/kg (think of as basically 6% hypertonic saline)
  • Typical hypertonic saline (3% NaCl) - 1000 mOsm/kg

Hypertonic sodium bicarbonate can be given by two 50 mL ampules given in rapid succession in the setting of elevated ICP. This is the osmotic equivalent to giving approximately 200 mL of 3% hypertonic saline. Hypertonic sodium bicarbonate is often found in code carts in the emergency department and can sometimes be easier to access quickly in case of an acute clinical change like our above scenario. Hypertonic sodium bicarbonate can also be considered in patients that have received multiple rounds of hypertonic saline and thus have developed a hyperchloremic metabolic acidosis. There is limited data from the Neurocritical Care literature that has shown decreased ICP in the setting of TBI with hypertonic sodium bicarbonate administration (references below).

Hypertonic sodium bicarbonate side effects include metabolic alkalosis which can be detrimental in the patient with elevated ICP; normocapnea/normocarbia is critical to maintain cerebral blood flow and excess sodium bicarbonate administration should be avoided in patients that already have a metabolic alkalosis. Additionally, the metabolic alkalosis from sodium bicarbonate can also precipitate hypocalcemia if a patient is at risk. Additionally, hypertonic sodium bicarbonate can also cause some irritation to peripheral veins.

References:

  1. Emergent Treatment of Hyponatremia or Elevated ICP with Bicarbonate Ampules. https://emcrit.org/pulmcrit/emergent-treatment-of-hyponatremia-or-elevated-icp-with-bicarb-ampules/
  2. Bourdeaux C, Brown J. Sodium bicarbonate lowers intracranial pressure after traumatic brain injury. Neurocrit Care. 2010 Aug;13(1):24-8. doi: 10.1007/s12028-010-9368-8. PMID: 20422466.
  3. Bourdeaux CP, Brown JM. Randomized controlled trial comparing the effect of 8.4% sodium bicarbonate and 5% sodium chloride on raised intracranial pressure after traumatic brain injury. Neurocrit Care. 2011 Aug;15(1):42-5. doi: 10.1007/s12028-011-9512-0. PMID: 21298358.


Title: Diagnostic Errors in the Critically Ill

Category: Critical Care

Posted: 2/10/2026 by Mike Winters, MBA, MD

Diagnostic Errors in the Critically Ill

  • Critical illness comprises numerous time-sensitive conditions in which diagnostic errors and delayed diagnoses markedly impact patient outcomes.
  • Diagnostic errors in the critically ill can occur in up to 20% of patients and lead to overuse of resources, delayed recovery, and increased mortality.
  • The most common cognitive biases leading to diagnostic errors in the critically ill include: 
    • Anchoring bias: over-reliance on your initial impressions
    • Availability bias: favoring diagnoses that easily come to mind
    • Premature closure: ending your diagnostic reasoning too early
    • Confirmation bias: seeking information that supports your diagnosis and discounting contradictory findings
  • Recommended strategies to reduce diagnostic errors in the critically ill include implementation of checklists, standardized handoff protocols, multidisciplinary patient reviews, and explicitly discussing these cognitive biases.

Show References

Valentin A, et al. Exploring the dark side of the moon: diagnostic errors in critically ill patients. Intensive Care Med. 2025; 51:2422-5.



Title: It's OK to Use Etomidate in Septic Patients (The RSI Trial)

Category: Critical Care

Posted: 2/2/2026 by Jessica Downing, MD (Updated: 7/21/2026)

Etomidate is often a go-to agent for RSI because it is considered relatively hemodynamically neutral. However, lab studies have shown an association with transient adrenal suppression, and some observational studies and meta-analyses have suggested that patients intubated with etomidate face higher risk of cardiovascular collapse and in-hospital mortality than those intubated with ketamine.

The RSI trial was a pragmatic open-label multi-center randomized control trial conducted in 6 EDs and 8 ICUs across the US and compared induction with ketamine 1-2mg/kg versus etomidate 0.2-0.3mg/kg for RSI of critically ill adults (excluding trauma patients). They found no significant difference in overall 28 day hospital mortality across the cohort. They found an increased risk of cardiovascular collapse during intubation in the ketamine group. This increased risk was more pronounced in patients with sepsis or septic shock and patients with APACHE II ?20.

Some details:

  • Cardiovascular collapse during intubation was defined as systolic BP <65mmHg, new or increased vasopressors, or cardiac arrest within 2 minutes of induction
  • The prevalence of 28 day hospital mortality was 28.1% in the ketamine group vs 29.1% in the etomidate group, with an absolute difference -0.8%, 95% CI ?4.5% to 2.9%; P=0.65
  • The prevalence of peri-intubation cardiovascular collapse was 22.1% in the ketamine group vs 17.0% in the etomidate group, absolute risk difference 5.1%; 95% CI, 1.9% to 8.3%. 
    • Among patients with sepsis or septic shock, 30.6% vs 20.9%, absolute risk difference 9.7%; 95% CI, 4.6% to 14.9%. 
    • Among patients with APACHE II ?20, 31.4% vs 20.7%, absolute risk difference 10.7%, 95% CI 5.5% to 16.0%.
  • Both ketamine and etomidate were dosed using actual body weight, whereas data is more supportive of using ideal body weight for ketamine. The dose used for ketamine was also on the higher end of that recommended for critically ill patients. There was no investigation of how the impact of the dose of either drug on the outcomes assessed.

Overall - this was a well conducted randomized control trial that  - at the very least - suggests that etomidate is likely as safe (if not safer) than ketamine with respect to 28d mortality and peri-intubation cardiovascular collapse, even among patients with critical illness or septic shock.

Show References

Casey JD, Seitz KP, Driver BE, Gibbs KW, Ginde AA, Trent SA, Russell DW, Muhs AL, Prekker ME, Gaillard JP, Resnick-Ault D, Stewart LJ, Whitson MR, DeMasi SC, Robinson AE, Palakshappa JA, Aggarwal NR, Brainard JC, Douin DJ, Marvi TK, Scott BK, Alber SM, Lyle C, Gandotra S, Van Schaik GW, Lacy AJ, Sherlin KC, Erickson HL, Cain JM, Redman B, Beach LL, Gould B, McIntosh J, Lewis AA, Lloyd BD, Israel TL, Imhoff B, Wang L, Spicer AB, Churpek MM, Rice TW, Self WH, Han JH, Semler MW; RSI Investigators and the Pragmatic Critical Care Research Group. Ketamine or Etomidate for Tracheal Intubation of Critically Ill Adults. N Engl J Med. 2025 Dec 9:10.1056/NEJMoa2511420. doi: 10.1056/NEJMoa2511420. Epub ahead of print. PMID: 41369227; PMCID: PMC12711137.



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