18 results
Negative contrast effect = a washout of the contrast (agitated saline) in the right atrium in
Negative contrast ... #contrast #effect ... #washout #ASD # ... defect #a4c #Echocardiogram ... #clinical #cardiology
Typical (Counterclockwise) and Reverse Typical (Clockwise) Atrial Flutter on EKG
Typical (Counterclockwise) Atrial Flutter
 • Inferior leads:
leads: Sawtooth waves ... with positive "p waves ... leads: "Positive" waves ... "P waves", sometimes ... #cardiology #clinical
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
Cannon A waves during ... In AVNRT, the atria ... EKG of the same ... rapid cannon a waves ... Hussainch #Cannon #Awaves
ASD on Bubble Contrast Echocardiogram (a4c)
A patient with an anterior STEMI (take a look at the
ASD on Bubble Contrast ... Echocardiogram ... Ivan_Echocardio #atrial ... #ASD #Bubble #Contrast ... #cardiology #pocus
Counterclockwise and (Left) vs Clockwise (Right) Flutter
Typical atrial flutter is counterclockwise in direction and originates from
This results in negatively-directed ... flutter waves in ... positively-directed flutter waves ... to the flutter waves ... #EKG #Cardiology
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Electrocardiogram (EKG ... fibrillation and ... atrial flutter ... or biphasic T waves ... #Cardiology #Digitalis
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
• Variable P wave ... not gradual in contrast ... • Some P waves ... #tachycardia #cardiology ... #diagnosis #ekg
A Lewis Lead (also called the S5 lead) is a modified ECG lead used to detect
flutter waves when ... clinically, based on signs ... perpendicular to the wave ... flutter waves may ... #Cardiology #EKG
Wellens' Sign: LAD-T Wave Inversion 
Life threatening T wave inversions in precordial leads. Often V2-V3 
Specific
Wave Inversion ... threatening T wave ... angina; but T wave ... Serial EKGS in pts ... #Diagnosis #Cardiology
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
J point • De Winter ... symmetrical T-waves ... V2 • Wellens sign ... pain • Wellens sign ... #differential #cardiology