27 results
Stimulated
SA node
AV node -
Un-stimulated
#PQ
(mV) 0
ECG (lead II)
QRS
#QRS
#SA node
#AV node
#Bundle of His
Bundle branches
#Purkinje fibers
#QRS
#ST
Stimulated SA node AV ... Un-stimulated #PQ ... QRS #SA node #AV ... node #Bundle of ... His Bundle branches
Cardiac conducting system 
 - Sinoatrial (SA) node normally generates the action potential, i.e. the electrical
through Bachmann’s bundle ... His and down the bundle ... - Right bundle ... - Left bundle ... - Both bundle
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
flutter w/ variable AV ... tachycardia, SVT with bundle ... fibrillation with bundle ... with variable AV ... block & bundle
ASD on Bubble Contrast Echocardiogram (a4c)
A patient with an anterior STEMI (take a look at the
ASD on Bubble Contrast ... Echocardiogram (a4c ... #defect #ASD #Bubble ... Echocardiogram #a4c
Hallmark ECG features of Ventricular Tachycardia (VT)
AV indicates atrioventricular; LAD, left axis deviation; LBBB, left bundle
Tachycardia (VT) AV ... deviation; LBBB, left bundle ... deviation; RBBB, right bundle
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Node, Atrium, AV ... Node, Bundle of ... Fibrillation • AV ... Tachycardia • AV
Atrial Septal Defect (ASD) with Shunting on Echocardiogram with Contrast (a4c)

An elderly patient with dyspnea -
with Contrast (a4c ... Echocardiogram #Contrast #a4c ... clinical #pocus #bubble
PFO with shunting on Contrast Echocardiogram (a4c) 
74 yo presents with CVA. RoPE score of 4.
Echocardiogram (a4c ... Echocardiogram #a4c ... cardiology #pocus #bubble
Hepatopulmonary Syndrome on Echocardiogram (A4C)
Hepatopulmonary Syndrome: Intrapulmonary shunting is most commonly demonstrated by contrast TTE when
Echocardiogram (A4C ... contrast TTE when bubbles ... Echocardiogram #A4C ... #bubble #shunting
Hepatopulmonary Syndrome (HPS) Diagnosis Algorithm
Bubble echo is the first piece of the puzzle. The nail on
HPS) Diagnosis Algorithm ... Bubble echo is ... the same way on bubble ... HPS #Diagnosis #Algorithm