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Randomized Controlled Trial
. 2012 Jun;33(11):1378-85.
doi: 10.1093/eurheartj/ehr396. Epub 2011 Oct 27.

Exercise training improves exercise capacity in adult patients with a systemic right ventricle: a randomized clinical trial

Michiel M Winter  1 , Teun van der Bom, Leonie C S de Vries, Anna Balducci, Berto J Bouma, Petronella G Pieper, Arie P J van Dijk, Mart N van der Plas, Fernando M Picchio, Barbara J M Mulder
Affiliations
Randomized Controlled Trial

Exercise training improves exercise capacity in adult patients with a systemic right ventricle: a randomized clinical trial

Michiel M Winter et al. Eur Heart J. 2012 Jun.

Abstract

Objective: To assess whether exercise training in adult patients with a systemic right ventricle (RV) improves exercise capacity and quality of life and lowers serum N-terminal prohormone brain natriuretic peptide (NT-proBNP) levels.

Design: Multi-centre parallel randomized controlled trial.

Participants: Patients with a systemic RV due to congenitally or surgically corrected transposition of the great arteries.

Methods: Fifty-four adult patients with a systemic RV, were randomized using unmarked opaque envelopes to an intervention group (n = 28) with three training sessions per week for 10 consecutive weeks, and a control group (n = 26). Randomization was stratified by participating centre. At baseline, and follow-up, we determined maximal exercise capacity (V'O(2peak)), serum NT-proBNP levels, and quality of life by means of the SF-36, and the TAAQOL Congenital Heart Disease questionnaires. The final analysis was performed by linear regression, taking into account the stratified randomization.

Results: Forty-six patients were analysed (male 50%, age 32 ± 11 years, intervention group n = 24, control group n = 22). Analysis at 10 weeks showed a significant difference in V'O(2peak) (3.4 mL/kg/min, 95% CI: 0.2 to 6.7; P = 0.04) and resting systolic blood pressure (-7.6 mmHg, 95% CI: -14.0 to -1.3; P = 0.03) in favour of the exercise group. No significant changes were found in serum NT-proBNP levels or quality of life in the intervention group or in the control group nor between groups. None of the patients in the intervention group had to discontinue the training programme due to adverse events.

Conclusion: In adult patients with a systemic RV exercise training improve exercise capacity. We recommend to revise restrictive guidelines, and to encourage patients to become physically active. (

Trial registration: The study was registered at http://trialregister.nl. Identifier: NTR1909.).

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