Elective Cardiac Procedure Patients Have Low Preoperative Cardiorespiratory Fitness

Abstract

Preoperative cardiorespiratory fitness may influence the recovery after cardiac procedure. The aim of this study was to investigate the cardiorespiratory fitness of patients scheduled for elective cardiac procedures, using a six-minute walk test, and compare the results with a population-based sample of Finnish adults. Patients (n=234) awaiting percutaneous coronary intervention or coronary angiography, coronary artery bypass grafting, aortic valve replacement or mitral valve surgery performed the six-minute walk test. VO₂max was calculated based on the walk test. The patients were compared to a population-based sample of 60–69-year-old Finnish adults from the FinFit2017 study. The mean six-minute walk test distances (meters) and VO₂max (ml/kg/min) of the patient groups were: 452±73 and 24.3±6.9 (coronary artery bypass grafting), 499±84 and 27.6±7.2 (aortic valve replacement), 496±85 and 27.4±7.3 (mitral valve surgery), and 519±90 and 27.3±6.9 (percutaneous coronary intervention or coronary angiography). The population-based sample had significantly greater walk test distance (623±81) and VO₂max (31.7±6.1) than the four patient groups (all p-values<0.001). All patient groups had lower cardiorespiratory fitness than the reference population of 60–69-year-old Finnish adults. Particularly the coronary artery bypass grafting group had a low cardiorespiratory fitness, and therefore might be prone to complications and challenging rehabilitation after the operation.

Key words

aortic valve disease - coronary artery disease - mitral valve insufficiency - physical activity

Publikationsverlauf

Eingereicht: 17. Dezember 2023

Angenommen: 28. August 2023

Accepted Manuscript online:
28. August 2023

Artikel online veröffentlicht:
06. Oktober 2023

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