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Title: Frozen Shoulder

Category: Orthopedics

Keywords: Adhesive Capsulitis (PubMed Search)

Posted: 6/24/2017 by Brian Corwell, MD (Updated: 7/21/2026)

Adhesive Capsulitis aka Frozen Shoulder

Spontaneous gradual onset stiffness and pain of the Glenohumeral joint

Shoulder capsule becomes thickened and contracted

Often affects patients between 40 and 60 years old

Left> Right shoulder

Women> men

Association with diabetes and thyroid disease

3 clinical stages

1)      Pain – gradual onset, diffuse, severe, disabling, often worse at night

2)      Stiffness – decreased ROM, affects ADLs, improved pain

3)      Thawing – gradual return of motion

Physical examination: Painful and decreased ROM. Evaluate active and passive movement, external rotation and ABduction of the shoulder most affected

Surgical or post traumatic shoulder stiffness usually resolves within 12 months.

Adhesive capsulitis is generally self-limiting lasting an average of 18-36 months.

DDX: Chronic locked posterior shoulder dislocation (VERY IMPORTANT), tumor.

Treatment: NSAIDs, Physical therapy, Intra articular steroids

If this fails, manipulation under anesthesia and/or arthroscopic surgical release

 

 

 



Title: Pediatric Exposures to Veterinary Medications (submitted by Lauren Grandpre, MD)

Category: Pediatrics

Keywords: overdose, poisoning, veterinary medications (PubMed Search)

Posted: 6/24/2017 by Mimi Lu, MD

Every year in the U.S., preventable poisonings in children result in more than 60,000 ED visits and around 1 million calls to poison centers.  Calls relating specifically to pet medication exposure and children have been on the rise.

A recent study in Pediatrics was the first was kind to characterize the epidemiology of such exposures.

This study is a call to arms for an increased effort on the part of public health officials, pharmacists, veterinarians, and physicians to improve patient education to prevent these exposures from occurring. 

Summary of major findings:

  • Children less than or equal to age 5 are at greatest risk
  • Ingestion accounted for the exposure route in 93% of cases. 
  • Exploratory behavior(61.%) was the most common mechanism of exposure

Most commonly Implicated exposures:

  • Pet medications with no human equivalent  (17.3%)
  • Antimicrobials (14.8%
  • Antiparasitic 14.6%)
  • Analgesics (11.1%)

Key contributors to exposure risk:

  • Lack of recognition by caregivers of potential hazards of pet medications
  • Inappropriate or lack of home storage practices
  • Inconsistent compliance by veterinary providers in terms of proper product labeling and child-resistant packaging

Take home point: Make sure your pet's medications are appropriately stored for safety!

 

  •  

Show Additional Information

Methods involved reviewing regional Poison Control Center data from 1999 thruh 2013, during which 1431 calls regarding exposures of children less than or equal to age 19 or exposed to a veterinary medication. 

While the authors concluded that most exposures did not result in major adverse outcomes, 14.1% of exposures resulted in at least minor health effects.

A broader range of more highly toxic medications are increasingly being prescribed for animals, including anti-neoplastic drugs such as cyclophosphamide and chlorambucil.

Treatment of chronic health conditions and pets,  such as osteoarthritis, hypothyroidism, or anxiety is also increasingly common.

 

 

Show References

Tomasi S, Roberts KJ, Stull J, Spiller HA, McKenzie LB. Pediatric Exposures to Veterinary Pharmaceuticals. Pediatrics. 2017;139(3)



Title: Pediatric blunt trauma and the need for chest xray

Category: Pediatrics

Keywords: Blunt thoracic trauma, pediatric trauma, chest xray (PubMed Search)

Posted: 6/16/2017 by Jenny Guyther, MD

Chest injuries represent the second most common cause of pediatric trauma related death.  ATLS guidelines recommend CXR in all blunt trauma patients.  Previous studies have suggested a low risk of occult intrathoracic trauma; however, these studies included many children who were sent home.

Predictors of thoracic injury include: abdominal signs or symptoms (OR 7.7), thoracic signs of symptoms (OR 6), abnormal chest auscultation (OR 3.5), oxygen saturation < 95% (OR 3.1), BP < 5% for age (OR 3.7), and femur fracture (OR 2.5).

4.3 % of those found to have thoracic injuries did not have any of the above predictors, but their injuries were diagnosed on CXR.  These children did not require trauma related interventions.

Bottom line: There were still a number of children without these predictors that had thoracic injuries, so the authors suggest that chest xray should remain a part of pediatric trauma resuscitation.

Show Additional Information

This was a retrospective review of children aged 0-17 with blunt trauma requiring trauma team activation who had a chest xray preformed.  483 eligible children were included, all of whom were admitted to the hospital.  108 children had their thoracic injury detected on chest xray, 110 on chest CT and 76 on abdominal CT.  Pneumothorax, pulmonary contusion and multiple rib fractures were the most commonly found thoracic injuries.  All children also had other injuries.

Show References

Weerdenburg et al.  Predicting Thoracic Injury in Children with Multi-trauma.  Pediatric Emergency Care.  Epub ahead of print.  2017.



Title: Are you up to date on your street names for drugs of abuse?

Category: Toxicology

Keywords: drugs of abuse, street name (PubMed Search)

Posted: 6/15/2017 by Hong Kim, MD (Updated: 6/15/2017)

Street names for illicit substance are diverse and unique. Knowing what your patient used prior to ED presentation can help with the management of their intoxication. 

 

DEA recently released 7 page list of common street names for drugs of abuse. 

 

https://ndews.umd.edu/sites/ndews.umd.edu/files/dea-drug-slang-code-words-may2017.pdf

 

But keep in mind that what our patients purchase and use may not actually contain the drug that they intended to purchase (e.g. fentanyl being sold as heroin).  

 

Attachments

  • 1706051356_dea-drug-slang-code-words-may2017.pdf (2,993 Kb)


Title: What is the role of EEG for first-time seizures in the ED?

Category: Neurology

Keywords: seizure, electroencephalogram, EEG, epilepsy, antiepileptic (PubMed Search)

Posted: 6/14/2017 by WanTsu Wendy Chang, MD

 

What is the role of EEG for first-time seizures in the ED?

  • Wyman and colleagues performed a prospective trial on the use of 30-minute routine electroencephalogram (EEG) in the ED after a first-time seizure or recurrent seizure without performance of a previous EEG to guide decision making in the initiation of antiepileptic medication.
  • A diagnosis of epilepsy based on EEG findings was made for 21% of patients (n=15/71).
  • Antiepileptic medication was initiated in 24% of patients (n=17/71), including 2 patients with abnormal but not epileptic EEG findings.

Take Home Point:  A 30-minute routine EEG in the ED in adults with an uncomplicated first-time seizure revealed a substantial number of epilepsy diagnosis and can change ED management with immediate initiation of antiepileptic medication.

Show Additional Information

Background:

  • Seizures account for 1.2% of all ED visits with 24% representing first-time seizures.
  • The 2014 ACEP Clinical Policy on the evaluation and management of patients presenting to the ED with seizures recommend that antiepileptic medication not be initiated for uncomplicated first-time seizure.
  • Literature suggests that epileptiform activity on EEG predicts seizure recurrence while earlier EEG performance has a higher rate of finding epilepsy than delayed EEG performance.

Show References

  • Wyman AJ, Mayes BN, Hernandez-Nino J, Rozario N, Beverly SK, Asimos AW. The first-time seizure emergency department electroencephalogram study. Ann Emerg Med 2017;69(2):184-191.
  • Huff JS, Melnick ER, Tomaszewski CA, et al. Clinical policy: critical issues in the evaluation and management of adult patients presenting to the emergency department with seizures. Ann Emerg Med 2014;63(4):437-447.
  • Krumholz A, Wiebe S, Gronseth G, et al. Practice parameter: evaluating an apparent unprovoked first seizure in adults (an evidence-based review): report of the Quality Standards Subcommittee of the American Academy of Neurology and the American Epilepsy Society. Neurology 2007;69(21):1996-2007.

 

Follow me on Twitter @EM_NCC

 



Title: Timing of Epi Administration in Cardiac Arrest Patients with Initial Shockable Rhythm

Category: Critical Care

Keywords: ACLS, cardiac arrest, resuscitation, epinephrine (PubMed Search)

Posted: 6/13/2017 by Kami Windsor, MD

In patients with persistent VT/VF cardiac arrest, giving epinephrine before the 2nd defibrillation attempt (which should follow initial shock and 2 minutes of CPR) is associated with decreased ROSC, decreased hospital survival, and decreased functional outcome. 

Take Home Point:

"Electricity before Epi" in patients with persistent VT/VF arrest, at least for the initial epinephrine dose.

Show Additional Information

Background Info:

While the ACLS algorithm does recommend initial defibrillation followed by 2 minutes of CPR and repeated shock if the shockable rhythm persists, the 2015 AHA Guidelines update admits that there is insufficient evidence to comment on “optimal timing” of epinephrine administration in these patients.

A 2016 study of 2794 patients across 310 hospitals looked at patients with cardiac arrest with initial shockable rhythm and found that compared to patients who received epinephrine after the second defibrillation attempt, patients who received epinephrine in the first 2 minutes before the 2nd shock had:

  • decreased rate of ROSC (67 v. 79%, p<0.001)
  • decreased rate of survival (31 v. 48%, p<0.001)
  • decreased functional outcome (25 vs. 41%, p<0.001)

The benefit of 2nd-shock-first was maintained when groups were matched using a propensity score accounting for baseline characteristics of the patients, events, and hospitals. 

Show References

References:

Part 7: Adult Advanced Cardiovascular Life Support: 2015 American Heart Association guidelines update for cardiopulmonary resuscitation and emergency cardiovascular care. Link MS, Berkow LC, Kudenchuk PJ, et al. Circulation. 2015;132(18 Suppl 2):S444-64.

Early administration of epinephrine (adrenaline) in patients with cardiac arrest with initial shockable rhythm in hospital: propensity score matched analysis. Andersen LW, Kurth T, Chase M, et al. BMJ. 2016;353:i1577.



Title: Shin Splints

Category: Orthopedics

Keywords: Runner, injury (PubMed Search)

Posted: 6/10/2017 by Brian Corwell, MD (Updated: 7/21/2026)

Shin Splints

Medial tibial stress syndrome (MTSS) aka shin splints is an overuse injury of the tibia

Very common

-10 to 15% of running injuries and over 50% of leg pain syndromes

3 Characteristics

1)      Pain along the posteromedial border of the tibia

2)      Diffuse pain

3)      Pain that is activity related

Risk  Factors

Female sex, increased weight, previous running injury, and

Higher navicular drop (amount of foot pronation) and

Greater hip external rotation with the hip in flexion

Differential  Diagnosis

Tibial stress fracture, compartment syndrome, nerve entrapment (sural), lumbar radiculopathy and popliteal artery entrapment. 



Title: Altered Mental Status- Is It Anticholinergic Toxicity?

Category: International EM

Keywords: Anticholinergic, Beers Criteria, mushrooms (PubMed Search)

Posted: 6/7/2017 by Jon Mark Hirshon, MPH, MD, PhD

A patient presents with altered mental status for unclear reasons- could it be anticholinergic syndrome? 

 

There are many medications (e.g. Beers Criteria, see pearl from March 5, 2017) and plants (e.g.: certain mushrooms) that can cause this life-threatening toxidrome.

 

The quick mnemonic for anticholinergic poisoning is:

·      Hot as a hare (hyperthermia)

·      Red as a beet (flushed)

·      Cry as a bone (decreased secretions)

·      Blind as a bat (mydriasis)

·      Mad as a hatter (delirium)

·      Full as a flask (urinary retention)

 

Bottom line: Keep anticholinergic syndrome within your differential for a patient with altered mental status without a clear cause.  

 

Note: An earlier version of this pearl incorrectly listed organophospahtes, which cause cholingeric toxicity.

Show Additional Information

The clinical manifestations of anticholinergic syndrome can be extensive. Additional symptoms can include:

 

·       “Sinus tachycardia

·       Decreased bowel sounds

·       Functional ileus

·       Urinary retention

·       Hypertension

·       Tremulousness

·       Myoclonic jerking

 

Patients with central anticholinergic syndrome may present with the following:

·       Ataxia

·       Disorientation

·       Short-term memory loss

·       Confusion

·       Hallucinations (visual, auditory)

·       Psychosis

·       Agitated delirium

·       Seizures (rare)

·       Coma

·       Respiratory failure

·       Cardiovascular collapse”1

Show References

1)    http://emedicine.medscape.com/article/812644-overview

2)    http://www.uptodate.com/contents/anticholinergic-poisoning



Title: The Utility of POCUS to Identify Patients with Massive Pulmonary Emboli

Category: Critical Care

Keywords: POCUS, Massive PE (PubMed Search)

Posted: 6/6/2017 by Rory Spiegel, MD (Updated: 7/21/2026)

The poor sensitivity of bedside echocardiography to identify all-comers with pulmonary embolism is well documented. Most series cite a sensitivity and specificity of 31% to 72% and 87% to 98%, respectively (1,2). But as Nazerian et al demonstrate in their recent publication in Internal and Emergency Medicine, the diagnostic performance of bedside echocardiography is far more reliable in the subset of patients presenting in shock (3).

Of the 105 patients included in the final analysis, in 43 (40.9%) PE was determined to be the etiology of their shock. Bedside echo demonstrated notable diagnostic prowess when employed in this subset of patients, sensitivity (91%), specificity (87%), –LR (0.11), +LR (7.03). The sensitivity and –LR were further augmented when the venous US of the LE was included (sensitivity of 95% and –LR of 0.06) in the diagnostic workup. 

Show References

1.     Dresden S, Mitchell P, Rahimi L, et al. Right ventricular dilatation on bedside echocardiography performed by emergency physicians aids in the diagnosis of pulmonary embolism. Ann Emerg Med. 2014;63(1):16-24.

2.     Nazerian P, Vanni S, Volpicelli G, et al. Accuracy of point-of-care multiorgan ultrasonography for the diagnosis of pulmonary embolism. Chest. 2014;145(5):950-957.

3.     Nazerian P, Volpicelli G, Gigli C, Lamorte A, Grifoni S, Vanni S. Diagnostic accuracy of focused cardiac and venous ultrasound examinations in patients with shock and suspected pulmonary embolism. Intern Emerg Med. 2017;

 



Title: ACS in Elderly Patients (Submitted by Dr Katherine Grundmann)

Category: Geriatrics

Keywords: Geriatric, cardiology, symptoms, atypical, angina (PubMed Search)

Posted: 6/4/2017 by Danya Khoujah, MBBS

Older patients with acute coronoary syndrome (ACS) are less likely to present with typical ischemic chest pain (pressure-like quality, substernal location, radiating to jaw, neck, left arm/shoulder and exertional component) compared with younger counterparts.

Typical angina symptoms predictive of acute myocardial infarction (AMI) in younger patients were less helpful in predicting AMI in the elderly population.

Autonomic symptoms such as dyspnea, diaphoresis, nausea and vomiting, pre-syncope or syncope are more common accompaniments to chest discomfort in elderly ACS patients.

Symptoms may also be less likely to be induced by physical exertion; instead, they are often precipitated by hemodynamic stressors such as infection or dehydration

Bottom Line: Keep a high index of suspicion for ACS in older patients as they present atypically.

Show References

Dai X, Busby-Whitehead J, Alexander KP. Acute Coronary Syndrome in the older adults. J Geriatr Cardiol. 2016 Feb;13 (2): 101-108 

 



Title: S.aureus in the urine and the risk for bacteremia

Category: Pharmacology & Therapeutics

Keywords: MSSA, MRSA, bacturia, bacteremia, Staph aureus, Staphlococcus aureus (PubMed Search)

Posted: 6/4/2017 by Jill Logan (Updated: 7/21/2026)

  • The incidence of Staphylococcus aurea as a urinary pathogen is increasing, however, this finding may represent more than a simple urinary tract infection.
  • One review found an 8-21%rate of association between S. aureus in the urine with bacteremia.
  • Additional work up, including blood cultures, may be warranted in patients with systemic symptoms, lack of access to follow up, and no urinary tract pathology or instrumentation.

Show Additional Information

Risk factors associated with S. aureus bacturia include:

  • catheterization and/or invasive urologic procedures
  • Urinary obstruction
  • Malignancy
  • Long term care facility residence
  • Recent antibiotics

Show References

Al Mohajer M, Darouiche RO. Staphylococcus aureus bacteriura: source, clinical relevance, and management. Curr Infect Dis Rep. 2012;14:601-6.



Title: Saving Mothers' Lives- Tranexamic acid for Post-Partum Hemorrhage

Category: International EM

Keywords: Tranexamic acid, Post-Partum Hemorrhage (PubMed Search)

Posted: 5/31/2017 by Jon Mark Hirshon, MPH, MD, PhD

Post-partum hemorrhage results in approximately 100,000 deaths annually and is the leading cause of maternal death globally.

In a just published study in the Lancet, among approximately 20,000 women from 21 countries enrolled in the WOMAN study, death due to bleeding was significantly reduced in women given tranexamic acid (1.5%) compared to those in the placebo group (1.9%) {RR 0.81, 95% CI 0.65–1.00; p=0.045)}. This was especially true in women given tranexamic acid with 3 hours of giving birth (1·2%) vs in the placebo group (1·7%) {RR 0.69, 95% CI 0.52–0.91; p=0·008)}.

Bottom line:

The authors’ interpretation “Tranexamic acid reduces death due to bleeding in women with post-partum haemorrhage with no adverse effects. When used as a treatment for postpartum haemorrhage, tranexamic acid should be given as soon as possible after bleeding onset.”

Show References

http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(17)30638-4/fulltext



Title: Distal radius fracture

Category: Orthopedics

Keywords: Wrist fracture, splinting (PubMed Search)

Posted: 5/27/2017 by Brian Corwell, MD

Distal Radius Fractures

High energy mechanism in younger patients

Falls more common in older patients

Higher incidence in older women due to osteoporosis

     May indicate overall poor bone health

  Avoid splinting in positions of flexion (palmer) and ulnar deviation

    Palmer flexed positions may have a higher rate of displacement

Non operative treatment

Extra-articular fx, less than 5mm shortening of radius, Less than 5 degrees of dorsal angulation.

     Consider fractures than are only stable in extreme positions to be unstable

If fx involves the ulnar styloid or DRUG (distal radial ulnar joint) place in long area posterior splint with arm in mid supination (anatomic position of forearm)

 

 



Title: Deadly nacho cheese? Cases of foodborne botulism in Northern California

Category: Toxicology

Keywords: foodborne botulism (PubMed Search)

Posted: 5/25/2017 by Hong Kim, MD

Botulism is a rare neurologic condition characterized by GI symptoms that progressed to cranial nerve dysfunction and symmetric descending paralysis. Foodborne botulism is due to ingestion of botulinum toxin that is produced by clostridium botulinum, an ubiquitous bacterium in our environment. 

Bottom line:

  • Foodborne botulism presents with GI symptoms that is followed by symmetric descending flaccid paralysis.
  • Botulinum antitoxin prevents further progression of neurologic deficit; it does not reverse the neurologic deficit that is present prior to administration. 
  • Contact your local poison center, and state health department & CDC regarding management and access to botulinum antitoxin.

Maryland Department of Health and Mental Hygiene

  • During business hours: 410-767-6700
  • After hours: 410-795-7365

CDC Emergency Operations Center: 770-488-7100

Show Additional Information

  • Majority of botulism cases occur in infants, but food and wound botulisms are also frequently reported.
  • Botulinum toxin blocks the release of acetylcholine from presynaptic membranes of neuromuscular junction resulting in paralysis.

Foodborne botulism is characterized by

  1. Early GI symptoms: nausea, vomiting and abdominal pain/discomfort (about 12-24 hours).
  2. Neurologic symptoms
  • Diplopia/lateral rectus palsy, blurred vision, impaired accommodation
  • Dysarthria/dysphonia, dysphagia
  • Symmetric bulbar paralysis progressing to limbs (descending paralysis).
  • Diminished deep tendon reflexes.
  1. Mental status and sensory remain normal/intact.
  • Management is primarily supportive. Heptavalent botulinum antitoxin can be made available through communication with state health department and CDC.
  • Antitoxin is administered to prevent further deterioration of clinical status, i.e. limit the progression of paralysis.
  • However, it does not reverse the neurologic deficit that is present prior to antitoxin administration.  

Show References

  1. Carrillo-Marquez MA, Botulism. Pediatr Rev. 2016;35:183-192
  2. Goldfrank's Toxicologic Emergencie. 10th ed. Ch 41. Botulism.


Title: Neurally Mediated Syncope - Part 2

Category: Neurology

Keywords: syncope, vasovagal, orthostatic, blood pressure (PubMed Search)

Posted: 5/24/2017 by Danya Khoujah, MBBS

 

Vasovagal syncope is a subtype of neurally mediated syncope, and it is distinctly different from orthostatic hypotension. 

Patients with orthostatic syncope have severe orthostatic hypotension that results in transient loss of consciousness immediately or within moments of standing up. This is different from neurally mediated syncope, which develops gradually under conditions of prolonged orthostatic stress such as standing for several minutes. Tilt table testing is useful for true orthostatic syncope, but not for neurally mediated syncope. In addition, checking for “orthostatic hypotension” may not capture patient with orthostatic syncope, because the hypotension occurs so quickly after standing up. Of note, patients may still have orthostatic tachycardia or intolerance with neurally mediated syncope. 

 
 

Show References

Cheshire WP. Syncope. Continuum 2017;23(2):335–358.


Title: Don't Forget that Second Dose!

Category: Critical Care

Posted: 5/23/2017 by Mike Winters, MBA, MD (Updated: 7/21/2026)

Antibiotics in Sepsis

  • Currently international guidelines for the management of sepsis and septic shock recommend antibiotic administration within 1 hour of recognition.
  • With the persistent problem of ED boarding, many patients with sepsis and septic shock remain in the ED long after the initial dose of broad-spectrum antibiotics.
  • A recent single center, retrospective cohort study demonstrated that 1 out of 3 patients with sepsis or septic shock experienced major delays in the time to the second dose of antibiotics.  In fact, over 70% of patients who were given an initial antibiotic with a 6-hr recommended dosing interval experienced major delays.
  • Inpatient boarding in the ED was found to be an independent risk factor for major delays.
  • Take Home Point: Don't forget to write for additional doses of antibiotics in your boarding patients with sepsis.

Show References

Leisman D, et al. Delayed second-dose antibiotics for patients admitted from the emergency department with sepsis: prevalence, risk factors, and outcomes. Crit Care Med. 2017; 45:956-65.



Title: Reverse Segond Fracture

Category: Orthopedics

Keywords: Reverse Segond Fracture (PubMed Search)

Posted: 5/21/2017 by Michael Bond, MD (Updated: 7/21/2026)

It is common teaching that a Segond Fracture is associated with ACL tears.  A reverse Segond fracture, avulsion fracture of the knee due to avulsion of the deep fibers of the medial collateral ligament, has also been described that was initially reported as associated with PCL tears.  However,  a more recent study has not been able to collaborate the PCL connection, but has shown that a reverse Segond fracture is associated with multiple ligamentous injuries to the knee.

Take home point:  If you note a Reverse Segond fracture on your plain flips have the patient followup with orthopedics for a possible MRI, as they probably have other ligamentous injuries that might need treatment.
 

Show Additional Information

In the study by Peltola et al they looked at 11 years of patients who had CT of their knee and found 10 patiens with a reverse Segond fracture.  They found "Reverse Segond fracture is a rare finding even in a level 1 trauma center. Cruciate ligament injuries appear to be associated with avulsion frac- ture, but every patient does not have PCL injury, as previously reported. Our results do not support the association of knee dislocation with reverse Segond fracture."

For a detailed discussion of Segond Fractures please visit Radiopaedia at https://radiopaedia.org/articles/segond-fracture

For Reverse Segond Fractures please visit https://radiopaedia.org/articles/reverse-segond-fracture

 

Show References

  1. Peltola EK, Lindahl J, Koskinen SK. The reverse Segond fracture: not associated with knee dislocation and rarely with posterior cruciate ligament tear. Emerg Radiol. 2014;21(3):245-249. doi:10.1007/s10140-013-1192-y.
  2. Kose O, Ozyurek S, Turan A, Guler F. Reverse Segond fracture and associated knee injuries: A case report and review of 13 published cases. Acta Orthopaedica et Traumatologica Turcica. 9999;50(5):587-591. doi:10.1016/j.aott.2016.08.017.


Title: Ziprasidone (Geodon) for acute agitation in pediatrics

Category: Pediatrics

Keywords: Psychiatric, agitation, pediatric (PubMed Search)

Posted: 5/19/2017 by Jenny Guyther, MD

IM ziprasidone (Geodon) has a relatively quick onset of action with a half-life of 2-5 hours.  Although commonly used in adults, there has not been a study looking at an effective dose in pediatrics. Based on the study referenced, the suggested pediatric dose of ziprasidone is 0.2 mg/kg (max 20mg).

Show Additional Information

This is the first study looking at ziprasidone in the pediatric emergency department population.  This was a retrospective observational study of children 5-18 years old who were treated with IM ziprasidone.  40 patients received IM ziprasidone in a tertiary care pediatric emergency department between 2007-2015.  2/3 of the patients had ADHD and 1/3 had autism spectrum disorder.  Other diagnosis included post-traumatic stress disorder, bipolar disorder and intellectual disabilities.

68% of patients responded to the initial dose.  The initial dose was 0.19 +/- 0.1 mg/kg in the responder group and 0.13 +/- 0.06 mg/kg in the non-responder group.  Single doses ranged from 2.5 mg to 20 mg total.

No patients had respiratory depression.  Two patients had potential extra-pyramidal symptoms, but one was prior to ziprasidone administration and the other patient had baseline facial twitching with no documentation if there was a change after ziprasidone administration.

Show References

Nguyen T, Stanton J and Foster R.  Intramuscular Ziprasidone Dosing for Acute Agitation in the Pediatric Emergency Department: An observational Study.  Journal of Pharmacy Practice 1-4.  2017.



Title: Bacterial Meningitis in West Africa

Category: International EM

Keywords: Meningitis, infectious disease (PubMed Search)

Posted: 5/18/2017 by Jon Mark Hirshon, MPH, MD, PhD

Currently, Nigeria is having the worst outbreak of bacterial meningitis in almost 10 years, involving 23 states, 13,420 suspected cases, and 1,069 deaths, as of May 9.

 

Bacterial meningitis outbreaks frequently occur in West Africa.  The area most frequently struck by epidemics of bacterial meningitis is in the sub-Saharan region of Africa. This includes 26 countries and over 400 million people. Epidemics most often occur in the dry season  from December-June. Neisseria meningitides serogroup A historically accounts for approximately 90% of the cases.

 

The U.S. Centers for Disease Control and Prevention recommends quadrivalent vaccines (protects against four serogroups A, C, W, and Y) for individuals traveling or living in countries in which meningococcal disease is hyperendemic or epidemic.

 

Show References

https://www.osac.gov/pages/ContentReports.aspx?cid=3 (Accessed 5/17/2017)



Title: High Flow Nasal Cannula -

Category: Critical Care

Posted: 5/16/2017 by Kami Windsor, MD

High flow nasal cannula (HFNC) is a valid option in the management of acute hypoxic respiratory failure (AHRF) without hypercapnia, as evidenced by multiple studies including the FLORALI trial. Failure of HFNC, however, may result in delayed intubation and worsened clinical outcomes. 

Factors predicting HFNC failure and subsequent intubation include:

  • Lack of RR improvement at 30 and 45 minutes after initation of HFNC
  • Lack of SpO2% improvement at 15, 30, and 60 minutes
  • Persistence of paradoxic breathing (thoracoabdominal dyssynchrony) at 15, 30, 60, and 120 minutes
  • Presence of additional organ system failure, especially hemodynamic (shock) or neurologic (depressed mental status)

Consider whether or not HFNC is appropriate in your patient with AHRF, and if you use it, reevaluate your patient to ensure improvement, or escalate their respiratory support. 

Show Additional Information

For patients with acute hypoxic respiratory failure without hypercapnia, the FLORALI trial demonstrated that high flow nasal cannula (HFNC) therapy increases ventilator-free days, reduces 90-day mortality, and is associated with better comfort and lower dyspnea severity when compared to conventional oxygen therapy and non-invasive ventilation (NIV). Failure of HFNC, however, may result in delayed intubation and worse clinical outcomes in patients with acute hypoxic respiratory failure. So how do we predict in the ED which patients are going to fail?

Sztrymf et al. evaluated patients placed on HFNC for nonhypercapneic acute hypoxic respiratory failure, who later went on to require endotracheal intubation. The cohort who failed HFNC had significantly:

-     higher RR at 30 & 45 minutes after initiation of HFNC

-     lower SpO2% at 15, 30, and 60 minutes

-     higher incidence of paradoxical breathing (thoracoabdominal dyssynchrony) at 15, 30, 60, and 120 minutes

In an observational study of patients with ARDS,* Messika et al. found that factors predicting HFNC failure included:

-     a higher Simplified Acute Physiology Score II (SAPS II; 46 v. 29, p=.001)

-     additional organ system failure (mostly hemodynamic or neurological)

-   trends towards lower PaO2:FiO2 ratios and higher RR

So don’t set it and forget it! Consider a different method of respiratory support if your patient has multi-organ system failure, especially if they are in shock or have altered mental status. If you do use HFNC, reevaluate your patient at 15 minutes and again at 30 minutes to make sure their respiratory rate and SpO2 have improved and that there is no paradoxic breathing (or it is resolving). If not, move on to NIV or invasive mechanical ventilation. 

*acute respiratory failure occurring within 1 week of known clinical insult with PaO2:FiO2 <300mmHg and bilateral opacities on chest x-ray not attributable to cardiac failure/volume overload

 

Show References

1.   Frat JP, Thille AW, Mercat A, et al. High-flow oxygen through nasal cannula in acute hypoxemic respiratory failure. N Engl J Med. 2015;372:2185–96.

2.   Sztrymf B, Messika J, Bertrand F, et al. Beneficial effects of humidified high flow nasal oxygen in critical care patients: a prospective pilot study. Intensive Care Med. 2011;37:1780–6.

3.   Messika J, Ben Ahmed K, Gaudry S, et al. Use of high-flow nasal cannula oxygen therapy in subjects with ARDS: a 1-year observational study. Respir Care. 2015;60(2):162-9.

4.   Hernandez G, Roca O, Colinas L. High-flow nasal cannula support therapy: new insights and improving performance. Crit Care. 2017;21(1):62.



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