In this month's ECG Cases Jesse McLaren takes us through 6 cases highlighting important mirror concepts in ECG interpretation including: which leads are reciprocal to each other, how to identify which is the main ST/T change and which is the mirror, reciprocal changes highlighting subtle inferior, lateral and posterior OMI, ST elevation in aVR as a mirror to widespread ST depression and more...
On this month's EM Quick Hits podcast: Ian Chernoff on the often elusive diagnosis of traumatic coronary artery dissection, Anand Swaminathan on proper use of insulin in DKA and in hyperkalemia, Brit Long and Hans Rosenberg on mesenteric ischemia pearls and pitfalls in diagnosis and management, Dave Jerome on recognition and management exercise-associated hyponatremia and heat illness and Jesse McLaren on the Queen of Hearts AI model in helping identify occlusion MI on ECG... Help Support EM Cases by Giving a Donation here: https://emergencymedicinecases.com/donation/
ECG artifact and lead reversal can mimic tachy-arrhythmia, infarct or Brugada. Learn how to identify these errors to prevent misdiagnosis on this month's ECG Cases with Dr. Jesse McLaren... Help Support EM Cases by Giving a Donation here: https://emergencymedicinecases.com/donation/
In this month's EM Quick Hits podcast: Megan Landes on the importance of diagnosing HIV in the ED, Jesse McLaren on the failed paradigm of STEMI criteria and ECG tips to identify acute coronary occlusion, Anand Swaminathan on evidence for non-invasive airway management in the poisoned patient, Brit Long and Hans Rosenberg on the identification, workup and management of spontaneous bacterial peritonitis, Matt Poyner on the most lucrative side-gig, DIY investing. To support EM Cases, please consider a donation here: https://emergencymedicinecases.com/donation/
Dr. Jesse McLaren illustrates the paradigm shift from STEMI to Occlusion MI (OMI) through 9 cases, and drives home the points that if there is STEMI criteria, consider false positives (eg. secondary and proportional to LVH or BER); if there is no STEMI criteria, consider false negatives and look for other signs of occlusion (eg. acute Q waves or loss of R waves, hyperacute T waves, or reciprocal STD/TWI) and if the ECG is nondiagnostic, consider other OMI signs including clinical (refractory ischemia, hemodynamic/electrical instability) and POCUS (new regional wall motion abnormalities).
In this ECG Cases blog, Jesse McLaren and Rajiv Thavanathan explore how ECG and POCUS complement each other for patients presenting to the emergency department with shortness of breath or chest pain. They explain complementary diagnostic insights into pericardial effusion and cardiac tamponade, occlusion MI and RV strain...
In this month's ECG Cases blog Dr. Jesse McLaren reviews interpretation of the pre-arrest ECG: identifying high risk ECGs requiring empiric treatment like calcium for hyperkalemia, magnesium for long QT, or reperfusion for Occlusion MI; the intra-arrest ECG: identifying pseudo-PEA; and post-arrest ECG: the importance of serial ECGs to reduce false positive STEMI, role of POCUS to help with the differential of diffuse ST depression with reciprocal ST elevation in aVR, and identifying signs of Occlusion MI/ false negative STEMI...
Olivia Ostrow on the management of button battery ingestions, Brit Long on C difficile infection, Jesse McLaren on an approach to ECG's in the tox patient, Joe Mullally on the identification and treatment of bed bug bites, Andrew Petrosoniak on fibrinogen replacement in bleeding trauma patients, Justin Morganstern on Cold Air for Croup... https://emergencymedicinecases.com/donation/
In this ECG Cases Dr. Jesse McLaren delves into ECG interpretation in toxicology and the poisoned patient using his HEARTS approach in 7 case examples. Heart rate/rhythm: consider antidotes for brady/tachy-arrhythmias, and for sinus tachycardia consider fluids for vasodilation and benzodiazepines for agitation. Electrical conduction and axis: consider sodium bicarb for QRS > 100 especially if RBBB or terminal rightward shift, and magnesium for QTc> 500. ST/T changes: consider the differential including demand ischemia, associated electrolyte abnormalities, Brugada pattern from sodium channel blockade, and acute coronary occlusion vs vasospasm from cocaine...
In this ECG Cases blog Dr. Jesse McLaren guides us through 10 cases, driving home the points that sepsis is a common cause of rapid Afib and diffuse ST depression with reciprocal ST elevation in aVR, myo/pericarditis is a diagnosis of exclusion, endocarditis or lyme carditis can cause AV block, PE can cause low grade fever and ECG signs of acute RV strain and that fever can unmask Brugada syndrome...