637 results
Right Heart Cath - Normal Cardiac Pressures

Right Atrial Pressure (RAP) or Central Venous Pressure (CVP)
 •
Normal Cardiac Pressures ... Right Atrial Pressure ... Central Venous Pressure ... Right Ventricular Pressure ... (PCWP): • 8-12
Right Heart Catheterization Cheat Sheet: Interpretation of Pressures and Waveforms 
Direct measurements
 ● Central venous pressure
Interpretation of Pressures ... Central venous pressure ... Pulmonary arterial pressure ... capillary wedge pressure ... x [mean artery pressure
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
↓ CO, ↑ SVR, ↓ PCWP ... , narrow pulse pressure ... . narrow pulse pressure ... . narrow pulse pressure ... extremities, wide pulse pressure
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations
PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO
 •
Pulmonary Artery Pressures ... TRANSMURAL FILLING PRESSURE ... Reflects the pressure ... or pericardial pressure ... #calculations #pressures
Pulmonary Arterial Catheterization – Use and Interpretation:
-Pulmonary arterial catheterization (PAC) has never been shown to improve
artery occlusion pressure ... capillary wedge pressure ... -right atrial pressure ... Chambers #Wedge #PCWP ... #Pressures #SVR
Differentiating PAH from PVH - Echocardiography
Pulmonary Artery Hypertension (PAH):
 • RV size - Enlarged
 • LA
<8 • Aortic pressure ... Normal/Low • PCWP ... mmHg • PADP-PCWP ... 10 • Aortic pressure ... mmHg • PADP-PCWP
Mechanical Cardiac Support Devices Compared
Cannula Size - Insertion Technique - Haemodynarnic Support
IABP:
 • Afterload: Reduced
 •
Slightly reduced • PCW ... pressure: Slightly ... pressure: Reduced ... pressure: Reduced ... pressure: Slightly
Pulmonary Artery Catheter Pressures
Normal: RA 0-8, RV 15-25/0-8, Mean PAP <25, PCWP 8-12, Cardiac Index 2.6-4.2
HFrEF,
Artery Catheter Pressures ... Mean PAP <25, PCWP ... Artery #Catheter #Pressures
Increased pulmonary venous pressure is related to the pulmonary capillary wedge pressure (PCWP) and can be
pulmonary venous pressure ... capillary wedge pressure ... (PCWP) and can
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
↓

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RV
Blood Volume PRESSURES ... Mean Arterial Pressure ... SP-DP Pulse Pressure ... bpm HR*SP Rate Pressure ... Colloid-Oncotic Pressure