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Cardiac rehabilitation program improves exercise capacity in heart transplantation recipients regardless of marginal

Kazufumi Kitagaki1,2, Rei Ono2, Yukihiro Shimada1

  • 1Department of Cardiovascular Rehabilitation, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 564-8565, Japan.

Heart and Vessels
|November 27, 2020
PubMed

Insights

Cardiac rehabilitation (CR) improves exercise capacity in heart transplant (HTx) recipients. This benefit was observed regardless of marginal donor factors, indicating CR is valuable for all HTx patients.

Area of Science:

  • Cardiology
  • Transplantation Medicine
  • Rehabilitation Science

Background:

  • Cardiac rehabilitation (CR) is crucial for improving exercise capacity post-heart transplantation (HTx).
  • The impact of marginal donor factors on CR effectiveness in HTx recipients remains unclear.
  • Understanding these factors is vital for optimizing post-transplant care.

Purpose of the Study:

  • To investigate the influence of marginal donor factors on exercise capacity improvements during CR in HTx recipients.
  • To identify predictors of enhanced peak oxygen uptake (peak VO2) following HTx.

Main Methods:

  • A 3-month CR program was implemented for 41 HTx recipients.
  • Patients were categorized into marginal (≥2 marginal donor factors) and control (<2 marginal donor factors) groups.
  • Multiple linear regression analysis assessed factors related to changes in peak VO2 and knee extensor muscular strength (KEMS).

Main Results:

  • Both marginal and control groups showed significant improvements in peak VO2 and KEMS.
  • No significant differences in exercise capacity gains were found between the groups.
  • Changes in KEMS independently predicted changes in peak VO2, but marginal donor factors did not.

Conclusions:

  • CR effectively enhances exercise capacity in HTx recipients, irrespective of marginal donor factors.
  • Knee extensor muscular strength is a key predictor of improved exercise capacity post-HTx.
  • All HTx recipients, including those with marginal donor hearts, should be referred to CR programs.

Keywords:
Donor factorExercise capacityHeart transplantationKnee extensor muscular strengthPeak oxygen uptake

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