12 results
Colonic Thumbprint Sign on Abdominal XRay - Differential Diagnosis:
 • inflammatory bowel disease: UC and CD
on Abdominal XRay ... - Differential ... • infection (e.g ... colitis) • bowel ischemia ... Diagnosis #radiology
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
In AVNRT, the atria ... EKG of the same ... excludes other differentials ... #PhysicalExam #JVP ... #Cardiology #Neck
Wellens' Sign: LAD-T Wave Inversion 
Life threatening T wave inversions in precordial leads. Often V2-V3 
Specific
Wellens' Sign: LAD-T ... becoming acute anterior ... Serial EKGS in pts ... EKG #ECG #Electrocardiogram ... #Diagnosis #Cardiology
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
V2 • Wellens sign ... pain • Wellens sign ... deviation) • Acute ischemia ... #differential # ... cardiology #electrocardiogram
Lancisi's Sign (Tricuspid Regurgitation) in a patient with Atrial Fibrillation

If you went to med school before
a patient with Atrial ... Regurgitation #Atrial ... Fibrillation #Neck #JVP ... #Clinical #Video ... #PhysicalExam #Cardiology
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
also a result of atrial ... • Dominant R Wave ... in relation to ECG ... leads) RV Ischemia ... AcutePE #diagnosis #cardiology
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
- Ischemia MI ... Equivalents / Don't Miss Signs ... in avL - early inferior ... electrocardiogram #cardiology ... Interpretation #differential
Atrial septal defect

An ECG may show the “crochetage” pattern (92% specific)—a notch near the apex of
Atrial septal defect ... apex of the R wave ... in inferior limb ... #EKG #Cardiology ... #Crochetage #Sign
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
artery (LMCA). left anterior ... predictor of recurrent ischemic ... Subepicardial atrial ... #differential # ... cardiology
Intraoperative Cardiac Ischaemia - Guidelines for Crises in Anaesthesia

If the patient is unconscious, signs of cardiac
is unconscious, signs ... depression • T wave ... CM5 continuous ECG ... Consider invasive arterial ... consultation with cardiology