Exercise tolerance and cardiorespiratory response to exercise after the Fontan operation for tricuspid atresia or functional single ventricle

D. J. Driscoll, G. K. Danielson, F. J. Puga, Hartzell V Schaff, C. T. Heise, B. A. Staats

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Abstract

To determine the impact of the Fontan operation on exercise tolerance and on the cardiorespiratory response to exercise, we compared the results of graded exercise to maximal effort of 81 patients with tricuspid atresia or single functional ventricle studied preoperatively with those of 29 patients studied postoperatively. Postoperatively, the values for total work performed, duration of exercise and maximal oxygen uptake increased significantly. Regardless of operative status, the maximal heart rate during exercise was reduced. The cardiac output and stroke volume response to exercise were subnormal after operation. Systemic arterial blood oxygen saturation was reduced markedly preoperatively both at rest and during exercise; postoperatively, it was significantly greater than the preoperative value but it remained slightly abnormal. The ventilatory response to exercise (respiratory rate, minute ventilation and ventilatory equivalent for oxygen) decreased toward normal after operation. Exercise tolerance and the cardiorespiratory responses to exercise improve after the Fontan operation. Formal exercise testing is essential to quantitate the degree of improvement.

Original languageEnglish (US)
Pages (from-to)1087-1094
Number of pages8
JournalJournal of the American College of Cardiology
Volume7
Issue number5
StatePublished - 1986

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Tricuspid Atresia
Fontan Procedure
Exercise Tolerance
Exercise
Oxygen
Cardiac Volume
Respiratory Rate
Cardiac Output
Stroke Volume
Ventilation
Heart Rate

ASJC Scopus subject areas

  • Nursing(all)

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Exercise tolerance and cardiorespiratory response to exercise after the Fontan operation for tricuspid atresia or functional single ventricle. / Driscoll, D. J.; Danielson, G. K.; Puga, F. J.; Schaff, Hartzell V; Heise, C. T.; Staats, B. A.

In: Journal of the American College of Cardiology, Vol. 7, No. 5, 1986, p. 1087-1094.

Research output: Contribution to journalArticle

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