10 results
Mean Arterial Pressure (MAP)

Average arterial pressure throughout one cardiac cycle, systole, and diastole. 
Surrogate indicator of
Stroke Volume (SV ... dromotropy #lusitropy #Pulsepressure ... cardiacoutput #Co #SV
POCUS - Measuring Cardiac Output
1) Calculate LVOT Area
2) Calculate LVOT VTI
3) Calculate Cardiac Output

SV = (LVOT
Cardiac Output SV ... CO (mL/min) = SV
Stroke Volume & Cardiac Output Measurement on POCUS
Accurately measure LVOT diameter:
1. Obtain PLAX 
2. Zoom to
LVOT Diam/2) 2 SV
Intra-Aortic Balloon Pump (IABP)

Intra-aortic balloon counter-pulsation is a method of invasive hemodynamic support. A catheter is
stroke volume (SV
Frank-Starling Curve in Congestive Heart Failure

Goal in HF mgmt is to reduce preload (EDV) to reach
to reach higher SV
Mean arterial pressure (MAP)

A common method used to estimate the MAP is the following formula:
* MAP
meanarterialpressure #pulsepressure
Pulse Oximetry Summary
Pulse oximetry is the non-invasive continuous measurement of the oxygen saturation of hemoglobin. It
increase with greater SV
Noninvasive Positive Pressure Ventilation (NIPPV)

Expiratory & Inspiratory Positive Airway Pressure
Both increase intrathoracic pressure, which can decrease
potentially improving SV
Perform computations online at:
ScyMed.com
6th ED
ICU-card
«ICU, Formulas & Drugs»
HEMODYNAMIC PATTERNS
Condition
SAP
CVP

PAP PCWP

CO C(a-v)02 PVR

SVR
Hypovolemic shock
↓
↓
↓
↓
↓
↑
↑
↑
Cardiogenic shock
↓
1
↑
1

1
↑

Septic shock
↓
↓
↓
↓
↑
↓
↓
↓
Cardiac Tamponade
.
↑
↑
1
↓

→
↑
RV
L/min/m2 HR*SV ... 60-90 bpm CO/SV ... Heart Rate SV
Arterial Line - Pulse Pressure Variation (PPV)
Pressure Variation (PPV) represents an interaction between lungs and heart.
#artline #PPV #pulsepressure