Key result
Heart transplant recipients show higher resting hemodynamics but lower peak exercise capacity versus cardiac surgery patients.
Why the study?
Differences in cardiovascular and gas exchange responses to graded exercise testing between orthotopic heart transplant recipients and heart surgery patients with similar cardiac function were not well described.
Observational (n=47)
Authors
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May indicate need for tailored rehab post-transplant; leaves open mechanisms of reduced aerobic capacity versus surgical controls.
Ehrman et al. (1992) conducted an observational in Orthotopic heart transplant (n=47). Orthotopic heart transplant vs. Heart surgery was evaluated on Cardiovascular and gas exchange responses to symptom-limited maximum exercise testing. Orthotopic heart transplant recipients had greater resting blood pressure and heart rate (P<0.01), but lower peak treadmill time and VO2 at ventilatory threshold than heart surgery patients.
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