3110 results
Cardiac Murmurs and Maneuvers

An algorithm demonstrating the effect of various maneuvers on systolic murmurs. 
TR, tricuspid
(decreased, no change ... Maneuvers #Heart #Cardiology
Echocardiography
Right ventricular function can be assessed using several methods and echocardiography is generally the first‐line tool
Fractional area change ... #Diagnosis #Cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
The heart rate change ... Pacemaker: • The change ... Sinus #Arrhythmia #cardiology
Sonographic Pulsus Paradoxus: Pulsed wave Doppler over mitral valve inflow demonstrating peak velocity change >25% with
peak velocity change ... POCUS #Clinical #cardiology ... #a4c #cardiology
Right heart dysfunction and failure in heart failure with preserved ejection fraction: mechanisms and management 
Source:
fractional area change ... #Diagnosis #Cardiology
Cardiac Myocyte Contractile cycle
 - Ca2+ binds to TnC → TnI is inhibited → conformational change
conformational change ... Pathophysiology #Cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
The heart rate change ... Pacemaker: • The change ... Sinus #Arrhythmia #cardiology
Peripheral Signs of Aortic Regurgitation

Corrigan sign	Prominent carotid and supraclavicular pulsations
Alfred de Musset sign	Head nodding with heart
Landolfi sign Change ... Insufficiency #Cardiology
Primary Syphilis
Usually, a single ulcer (chancre) appears at the site where the bacteria entered the body.
single ulcer (chancre ... common location for chancres ... The chancre is firm ... The chancre of primary ... The chancre lasts
Pathophysiology Of Constriction
Exaggerated Ventricular Interdependence:
 • Limited Cardiac Filling due to Fixed Volume → Septum Shifts
circumstances, the change ... pathophysiology #cardiology