Cardiac Transplantation

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Apical four chamber view of three atrial suture reflections in a cardiac transplant patient.

TITLE: Dobutamine echocardiography for prediction of ischemic events in heart transplant recipients.
AUTHOR: Lewis JF; Selman SB; Murphy JD; Mills RM Jr; Geiser EA; Conti CR
SOURCE: J Heart Lung Transplant 1997 Apr;16(4):390-3
ABSTRACT: The purpose of this study was to assess the use of dobutamine stress echocardiography in predicting cardiac events in heart transplant recipients. Dobutamine echocardiography was performed in 63 consecutive heart transplant recipients, 52 males and 11 females ranging in age from 12 to 77 years (mean 54), undergoing routine yearly evaluation. Twenty-one patients had abnormal wall motion at baseline or during dobutamine infusion. Over a mean follow-up of 8 months (range 4 to 14), there were six major cardiac events: five occurred among patients with abnormal echocardiography study results; only one event occurred in a patient with a normal echocardiography result. These data suggest that normal wall motion during dobutamine echocardiography identifies a subset of heart transplant recipients at low risk for development of cardiac events, whereas an abnormal study result serves as an important predictor of subsequent cardiac events.

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