LV Contractility (dP/dt)

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Data Acquisition

LV dp/dt

Reference Values

LV Contractility (dP/dt) (mmHg/s)
Normal >1200
Borderline 800 – 1200
Reduced <800
Severely reduced <500

Formula

\[dP/dt = \frac{32}{Time}\]

Definition

dP/dt The rate of rise of LV pressure

Reference

1. Bargiggia GS, et al. A. new method for estimating left ventricular dP/dt by continuous wave Doppler echocardiography: Validation studies at cardiac catheterization. Circulation 1989; 80: 1287-1292. Abstract

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Developer & Illustrator: Sirikarn Napan, MD, FACC