stroke work index

stroke work in·dex

a measure of the work done by the heart with each contraction, adjusted for body surface area; equal to the stroke volume of the heart multiplied by the arterial pressure and divided by body surface area; the normal stroke work index does not exceed 40 g/m2.

stroke work in·dex

(strōk wŏrk in'deks)
A measure of the work done by the heart with each contraction, adjusted for body surface area; equal to the stroke volume of the heart multiplied by the arterial pressure and divided by body surface area.
References in periodicals archive ?
In the Dyspnea Differential Study, the BioZ System's measurements of cardiac index, stroke index, and left stroke work index were studied and compared to the clinical diagnosis of four physicians, independently reviewing each patient's chart and blinded to the BioZ System data.
While the most recently completed, single-dose congestive heart failure trial showed average improvement of 15-20 percent in cardiac index and left ventricular stroke work index (both are measures of heart function), these effects were, in general, less robust than those observed in the CABG trial, largely due to the numerous other cardiovascular drugs these patients were taking.
CPC-111 has now demonstrated positive effects on numerous efficacy parameters in CABG patients, indices of both heart damage such as CKMB levels and a variety of heart function measures such as cardiac index, left ventricular stroke work index, pulmonary artery wedge pressure and, most recently, pulmonary vascular resistance.