804 results
Mean Arterial Pressure (MAP)

Average arterial pressure throughout one cardiac cycle, systole, and diastole. 
Surrogate indicator of
output (CO) = Heart ... Afterload also affects ... Heart rate is affected ... by the chronotropy ... #chronotropy #dromotropy
Hypertrophic Obstructive Cardiomyopathy: Heart Murmur
 • Occurs during systole 
 • Crescendo-decrescendo murmur
 • Heard best
Cardiomyopathy: Heart ... Crescendo-decrescendo murmur • Heard ... reductions in afterload ... elevations in afterload ... Cardiomyopathy #Heart
Causes of acute heart failure
 - Acute pressure overload (increased afterload, mechanical flow obstruction) 
 -
Causes of acute heart ... overload (increased afterload ... arrhythmias #Acute #Heart
Congestive Heart Failure - Causes, Pathophysiology and Differential Diagnosis
 • Dilated Cardiomyopathy 
 • Hypertrophic Cardiomyopathy
Congestive Heart ... HFpEF Causes: • Afterload
VA ECMO Unloading - LV Venting
Different LV Venting Strategies work through these basic mechanisms: ↓ Preload,
Contractility, ↓ Afterload ... Vasodilators: ↓ Afterload ... Reducing ECMO Flow: ↓ Afterload ... • IABP: ↓ Afterload
Calcium Channel Blockers - Dihydropyridines vs Non-Dihydropyridines
Dihydropyridines (amlodipine, felodipine, nifedipine, nicardipine)
 • SVR: Decrease
 • Inotropy:
: No effect • Chronotropy ... Inotropy: Decrease • Chronotropy
Cardiac Maneuvers and Effects on Murmurs

Valsalva Standing - Decr BIood Return to LV
Laying Down, Squatting, Straight
Phenylephrine - Incr Afterload ... Nitrate - Decr Afterload ... Post PVC - Decr Afterload
Clinician's Pocket Guide to Vasopressors - Receptor Profiles and Hemodynamic Parameters
 • Systemic Vascular Resistance -
contractions • Chornotropy ... Changes in the heart
Medications Used in Congestive Heart Failure

In CHF, the heart is failing as a pump; cardiac output
in Congestive Heart ... In CHF, the heart ... strain on the heart ... if the heart failure ... Cardiology #Preload #Afterload
The Death Spiral: Increased RV Afterload (Acute PE) 
#Pathophysiology #PE #PulmonaryEmbolism #Embolism #DeathSpiral #Shock #RVDysfunction #RebelEM
: Increased RV Afterload