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cTr ppCm

Fig. 24-2. Contractile reserve among recovered patients with peripartum cardiomyopathy and controls (CTR). Contractile reserve was defined as vertical deviation (change in rate-corrected velocity of circumferential fiber shortening in circulation per second) between baseline contractility line and dobutamine-induced shift in data point. Contractile reserve (Delta Vcfc) values are depicted for study patients (open circles) and respective controls (closed circles), each matched for age, race, and parity (lines). Contractile reserve was significantly lower in patients with a history of peripartum cardiomyopathy and recovered left ventricular function than in controls (P < 0.03). PPCM, peripartum cardiomyopathy with recovered left ventricular function. (From Lampert et al.36 By permission of Mosby-Year Book.)

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