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June 1, 1994Clinical CardiologyOpen Access

Response to upright exercise after cardiac transplantation

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Key result

Heart transplant patients had an altered response to upright exercise compared to controls, including a higher steady-state heart rate (108 vs 96 beats/min, p<0.05) and lower stroke index.

Why the study?

Does upright bicycle exercise elicit different hemodynamic and metabolic responses in heart transplant patients compared to controls?

Population

11 patients who have undergone cardiac transplantation and 12 controls (total n=23)

Comparison

Upright bicycle exercise vs 12 controls performing the same upright bicycle…

Design

Cross-sectional

Authors

TMTimothy W. MartinJGJay GaucherLPLawrence E. Pupa

Discussion

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Overview

May inform exercise test interpretation in heart transplant recipients; leaves open prognostic impact and protocol needs.

Study Design

Type

Case-Control (n=23)

Structured PICO

Does upright bicycle exercise elicit different hemodynamic and metabolic responses in heart transplant patients compared to controls?

P
Population
11 patients with heart transplants and 12 controls evaluated for hemodynamic and metabolic responses to upright bicycle exercise.
E
Exposure
Upright bicycle exercise (steady-state test with right heart catheter at 20% predicted maximum workload, and a maximal incremental test)
C
Comparator
12 controls performing the same upright bicycle exercise tests
O
Outcome
Hemodynamic and metabolic response to upright bicycle exercisesurrogate

Main Result

Absolute Event Rate: 108% vs 96%

p-value: p=<0.05

Heart transplant patients demonstrate an altered, less efficient hemodynamic and metabolic response to upright exercise compared to controls.

Cite This Study

Martin et al. (1994) conducted a case-control in Cardiac transplantation (n=23). Cardiac transplantation vs. Controls was evaluated on Steady-state heart rate during upright bicycle exercise (beats/min) (p=<0.05). Heart transplant patients had an altered response to upright exercise compared to controls, including a higher steady-state heart rate (108 vs 96 beats/min, p<0.05) and lower stroke index.

synapsesocial.com/papers/6a9cff4ca764fcb084e28413https://doi.org/10.1002/clc.4960170604
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Comparison of hemodynamic responses during dynamic exercise in the upright and supine postures after orthotopic cardiac transplantation1990 · 52 citations
  2. 2Cardiorespiratory responses of cardiac transplant patients to graded, symptom-limited exercise.1980 · 199 citations
  3. 3Changes in the Cardiopulmonary Response to Exercise after Cardiac Transplantation in Patients Enrolled in an Early Rehabilitation Program1997 · 1 citations
  4. 4Exercise training after cardiac transplantation1991 · 39 citations
  5. 5Cardiorespiratory functional assessment after pediatric heart transplantation2001 · 38 citations