23 results
Supraventricular Tachycardia EKG

Here’s a great ECG case of a 50-year-old lady who presented with palpitations

Her heart
Supraventricular Tachycardia EKG ... Here’s a great ECG ... #Tachycardia #EKG ... #ECG #Electrocardiogram ... #Cardiology #EKG
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
EKG of the same ... to diagnose the case ... Hussainch #Cannon #Awaves ... #AVNRT #PhysicalExam ... #JVP #Cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... aVR • Classic EKG ... tachycardia ddx: AVNRT ... #AVR #leadAVR #ecg ... electrocardiogram #diagnosis #ekg
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
vs SVT (AVNRT, ... AFIutter) • P-waves ... > SVT+conduction ... whether AF is cause ... #cardiology
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
3 different P wave ... "PSVT" (atrioventricular ... retrograde) - AVNRT ... differential #diagnosis #causes ... #cardiology
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Caused by atrial ... activation from SVT ... (e.g., junctional ... 2LmUODZ #Cannon #AWaves ... #diagnosis #cardiology
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
exam • 12-lead ECG ... Valvular disease (e.g ... vagal maneuvers: SVT-AVNRT ... bending over: AVNRT ... #Palpitations #Cardiology
Lancisi's sign in Severe Tricuspid Regurgitation - Physical Exam
Note the large systolic jugular venous wave caused
large systolic jugular ... venous wave caused ... #PhysicalExam # ... Cardiology #Neck ... #Jugular #JVP
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Electrocardiogram (EKG ... Digoxin effect on ECG ... Electrocardiogram #EKG ... #Cardiology #Digitalis ... #ECG
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
EKG in Acute Pulmonary ... evaluating for other causes ... in relation to ECG ... #EKG #Pulmonary ... AcutePE #diagnosis #cardiology