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61-80 of 321 results by Haney Mallemat
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60 year-old male presents with 6 months of weight loss,epistaxis, and increased headache when bending over. What's the diagnosis?
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60 year-old male presents with rhinorrhea, body aches, and dry cough for two days. He recently moved here from Kentucky. What’s the diagnosis (please note that there are several differentials based on CXR)?
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A male patient presents with right lower quadrant pain. The ultrasound is shown at the point of maximal tenderness. The diameter of the structure (image on right) is about 0.94cm. What is this structure and what's the diagnosis?
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19 year-old male complaining of left arm pain one week after injecting anabolic steroids into his sholder. What's the diagnosis?
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Treating ischemic strokes with interventional therapies (e.g., clot retrievers, stents, intra-arterial tPA, etc.) is nothing new, but there has never been a randomized control trial demonstrating benefit until recently.
The prospective MR CLEAN trial evaluated whether interventional therapies (i.e., either mechanical intervention or intra-arterial tPA) would confer benefit; patients were included if there was an acute occlusion within the proximal intracranial portion of the anterior cerebral circulation.
90% of patients received alteplase prior to randomization; there were 233 patients in the intervention group (alteplase + intraarterial intervention) and 267 patients in the usual care care arm (alteplase only); all patients were treated within 6 hours of symptoms onset
The primary outcome was functional independence at 90 days; an absolute difference of 13.5 percentage points favoring the intervention group was found. There were no significant differences in mortality or symptomatic intracerebral hemorrhage.
Despite these exciting results, we must pause and ask why this was this the first randomized trial demonstrating benefit when previous trials could not? Here are three blogs posts that deep dive this question and raise even more questions:
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Hand pain following fist versus face. What's the diagnosis and what nerve block would you use?
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A patient is intubated for respiratory failure and the post-intubation CXR is shown on the left. 30 minutes later the patient desaturates and another CXR is obtained (the one on the right). What’s the diagnosis and what should you do?
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Patient was found in a house fire and was given a certain medication in the Emergency Room. The patient’s urine turned this color (red), what’s the diagnosis?
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Patient presents with dyspnea. What's the diagnosis and name three potential causes (can be specific to the case or in general)?
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Running a successful resuscitation not only means doing everything right, but also remembering all the things that can go wrong. A.E.I.O.U. is a simple mnemonic that can help you remember the simple things that are sometimes forgotten during a medical resuscitation.
A – Advanced airway equipment to bedside, as well as checking the correct placement of the Airway if a patient is intubated in the field. Also consider adding another A, for Arterial line; early placement can help with pulse checks and an accurate assessment of blood pressure should there be return of spontaneous circulation (ROSC); the femoral site is fast and accurate.
E – End-tidal CO2 (ETCO2) helps detect ROSC. Ask for the ETCO2 monitor to be set up right after you receive notification of an arrest in transit; ETCO2 requires time to set-up / calibrate
I – Intraosseous line(s); compared to peripheral or central venous access, IO’s are faster, safer, and any medication can be administered through it, including vasopressors / inotropes.
O – Order (i.e., “who’s who in the Resus room?); You may be the team leader or you may be assisting, but it is important that you, and everyone else in the room, know their role prior patient arrival. If you are leading the resus, be sure everyone knows who you are, and assign everyone in the room a specific task (e.g., chest compressions, IO placement, etc.). If you are assisting and have not been assigned a task, ask the resus leader what you can do to help. If there is nothing immediate for you to do then take the initiative to de-clutter the room and step outside; be nearby and ready to help, if needed.
U – Ultrasound; can help prognosticate and detect reversible causes (e.g., pericardial tamponade). Have the ultrasound machine in the room prior to patient arrival. It should be powered on, with the proper probe connected, and in the proper mode. The most experienced ultrasonographer should scan the patient during a pulse check; experience is vital because hands-off time should be minimized.
*Tips for the Resuscitationist (#TFTR) is a new series to help you to better manage your critically ill patients. Do you have an idea for a topic or do you have a tip you would like to share? Send it to us via twitter @criticalcarenow (use (#TFTR)). You can also email us here.
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Patient with syncope and then falls down the stairs. What's the diagnosis? (hint: be very,very careful)
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Patient presents with dyspnea & hypoxemia (pulse oximeter is 80%). The "stat" CXR is delayed, but ultrasound is not. What's the diagnosis and what are some differential diagnoses?
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Parasternal long-axis of two different patients. What is the:
- structure labeled “A”
- structure labeled “B”
- diagnosis on the left?
- diagnosis on the right?
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A patient presents post-motor vehicle crash with chest pain and dyspnea. The lung ultrasound is shown below. What's the diagnosis?
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13 year-old right-hand dominant following assault with blunt object. What’s the diagnosis?
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A neck ultrasound is performed during endotracheal intubation. What is labeled "A", what is labeled "B" and what's the diagnosis?
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7d old child presents with difficulty feeding,vomiting one time, and now with intermittent apneic episodes. What's the diagnosis? (Careful....this one is tricky!)
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The last Back to the Basics post discussed the use of vasopressors to improve hemodynamics by increasing arterial (and venous) tone. This time we’ll discuss the use of agents to increase inotropy for patients with severe systolic dysfunction / failure.
Dobutamine: a direct b1 and b2-receptors agonist. It has no peripheral vasoconstrictor properties, so if blood pressure increases it occurs secondary to increased cardiac output. Unfortunately, blood pressure may be decreased in some patients due to its peripheral vasodilatory effects; in these cases it may need to be used with a vasopressor.
Milrinone: augments contractility by increasing intracellular Ca levels via cellular phosphodiesterase inhibition. Because it does not work on beta-receptors, it might be preferred for patients taking beta-blockers requiring inotropic support. It may cause peripheral vasodilation and hypotension, but this may be a benefit if pulmonary artery pressure is elevated as reductions in pulmonary artery pressure lead to improvements in right ventricular function. It has a long-half life and should be avoided in patients with renal impairment.
Dopamine: chemical precursor to norepinephrine and technically a vasopressor. At moderate doses (3-10 mcg/kg/min) it works on beta-receptors to increase myocyte contractility. At higher doses works primarily as a vasopressor, which may reduce cardiac output due to higher afterload.
Norepinephrine/epinephrine: has alpha and beta properties that lead to increased peripheral vasoconstriction, but also increases inotropy and chronotropy (faster heart rate)
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Person presents with painless vision loss after seeing flashes of light. Ultrasound is below. What's the diagnosis?
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Football player complains of sudden foot pain after begin tackled. What’s the diagnosis?
