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Cardiovascular · Physiology

Arterial Pressure Waveform

The PV loop unrolled into time · Tap features to explore

Current State
Tap a feature button - or click on the waveform - to learn what that part represents physiologically.
Link to PV Loop
Key Relationships
SBPPeak of waveform
DBPTrough before next beat
Pulse pressureSBP − DBP
MAPDBP + ⅓ pulse pressure
Dicrotic notchAortic valve closes = ESP
Upstroke slopeReflects contractility
Downslope rateReflects SVR
Aortic complianceBuffers peak, maintains DBP
Clinical Relevance