All issues > Volume 35(2); 1992

Original Article

J Korean Pediatr Soc. 1992;35(2):157-167. Published online February 15, 1992.

Exercise Tolerance Tests in Patients with Tetralogy of Fallot Repaired Earlier : Correlation with 2-Dimensional Echocardiography and Cardiac Catheterization

Jin Yong JY Lee¹, Jun Hee JH Sul¹, Sung Kyu SK Lee¹, Dong Shik DS Chin¹, Bum Koo BK Cho², Soo Kwan SK Hwang³, Dong Soo DS Yeoun³

¹Department of Pediatric Cardiology and Cardiovascular Surgery, Cardiovascular Center, Yonsei University College of Medicine, Seoul, Korea
²Division of Cardiovascular Surgery, Yonsei Cardiovascular Center Yonsei University, College of Medicine, Seoul, Korea
³The Institute of Sports Sciences, Yonsei University College of Medicine, Seoul, Korea

Abstract

Exercise tolerance tests were performed using treadmill in 21 patients with tetralogy of Fallot (TOF) repaired earlier (4.8 years in mean) and 10 subjects with small ventricular septal defect or normal heart, aged 8-16 years. Pre and postexercise echocardiography and cardiac catheterization were also performed and the hemodynamic data were compared with exercise parameters. The following results were obtained. 1) The patients with right ventricular systolic pressure (RVP) above 100 mmHg have severe exercise intolerance compared with patients with RVP less than 100 mmHg and the control subjects. 2) The degree of posteoperative pulmonary regurgitation did not influence the exercise tolerance. 3) Echoardiographic interventricular septal configuration can be a godd predictor for exercise tolerance.

Keywords :Tetralogy of Fallot, Echocardiography, Right ventricular pressure, Exercise tolerance test