407 results
Intra-Aortic Balloon Pump (IABP)

Intra-aortic balloon counter-pulsation is a method of invasive hemodynamic support. A catheter is
systole → decreases afterload ... management #cardiology #criticalcare
Noninvasive Positive Pressure Ventilation (NIPPV)

Expiratory & Inspiratory Positive Airway Pressure
Both increase intrathoracic pressure, which can decrease
can decrease LV afterload ... #indications #criticalcare
It is important to recognize Acute Decompensated Heart Failure (ADHF) as more than just simply a
benefit from LV afterload ... inotrope therapy and afterload ... heartfailure #chf #criticalcare
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
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
The Death Spiral: Increased RV Afterload (Acute PE) 
#Pathophysiology #PE #PulmonaryEmbolism #Embolism #DeathSpiral #Shock #RVDysfunction #RebelEM
: Increased RV Afterload
Post-TAVR Suicide Left Ventricle
Pre-TAVR: High afterload from aortic stenosis leads to compensatory left ventricular hypertrophy and
Pre-TAVR: High afterload ... Post-TAVR: Rapid ↓ in afterload ... Phenylephrine to ↑ Afterload
Mechanical Cardiac Support Devices Compared
Cannula Size - Insertion Technique - Haemodynarnic Support
IABP:
 • Afterload: Reduced
 •
Support IABP: • Afterload ... increase ECMO: • Afterload ... TandemHeart: • Afterload ... Impella: • Afterload
Hypertrophic Obstructive Cardiomyopathy: Heart Murmur
 • Occurs during systole 
 • Crescendo-decrescendo murmur
 • Heard best
reductions in afterload ... elevations in afterload
Causes of acute heart failure
 - Acute pressure overload (increased afterload, mechanical flow obstruction) 
 -
overload (increased afterload