gms | German Medical Science

Süddeutsche Tage der Kinder- und Jugendmedizin München

04.05. - 06.05.2012, München

Nowadays, children with congenital heart disease are no longer limited in their submaximal exercise performance

Meeting Abstract

  • J. Müller - Lehrstuhl für Präventive Pädiatrie / TU München, München, Germany; Deutsches Herzzentrum München, Kinderkardiologie und Klinik für angeborene Herzfehler, München, Germany
  • S. Semsch - Lehrstuhl für Präventive Pädiatrie / TU München, München, Germany
  • B. Böhm - Lehrstuhl für Präventive Pädiatrie / TU München, München, Germany
  • R. Oberhoffer - Lehrstuhl für Präventive Pädiatrie / TU München, München, Germany
  • J. Hess - Deutsches Herzzentrum München, Kinderkardiologie und Klinik für angeborene Herzfehler, München, Germany
  • A. Hager - Deutsches Herzzentrum München, Kinderkardiologie und Klinik für angeborene Herzfehler, München, Germany

Süddeutsche Tage der Kinder- und Jugendmedizin. 61. Jahrestagung der Süddeutschen Gesellschaft für Kinder- und Jugendmedizin und der Süddeutschen Gesellschaft für Kinderchirurgie und dem Berufsverband für Kinder- und Jugendärzte – Landesverband Bayern. München, 04.-06.05.2012. Düsseldorf: German Medical Science GMS Publishing House; 2012. Doc12sgkjP26

DOI: 10.3205/12sgkj67, URN: urn:nbn:de:0183-12sgkj670

Published: April 11, 2012

© 2012 Müller et al.
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Outline

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Objective: Formerly, adolescents and adults with congenital heart disease (CHD) showed a reduced exercise capacity even in defects considered to be simple. Nowadays, the children might get a better medical management and less restriction concerning an active lifestyle or sport activities. The exercise performance of this new generation of children with CHD has to be evaluated.

Patients and methods: In the year 2010, eighty-eight children (12.7 years, 52 male) eleven to fourteen years old with various congenital heart diseases performed a cardiopulmonary exercise test in our institution. These children were matched for age and gender with healthy subjects, who underwent the same procedure at a school survey.

Results: In comparison to healthy controls, children with CHD had a diminished peak oxygen uptake VO2 (CHD: 35.5 ml/min/kg vs. controls: 42.4 ml/min/kg; p<.001) corresponding to 87.1% (CHD) and 99.5% (Controls) of the reference value, respectively. Peak VO2 decreased with the severity of the heart defect (r=–.410; p<.001). However, there were no differences in oxygen uptake at the ventilatory threshold (CHD: 20.6 ml/min/kg vs. controls: 21.5 ml/min/kg; p=.675).

Conclusions: Nowadays, children with CHD are no longer limited in their submaximal exercise performance. However, they still have a limited peak oxygen uptake at least in part due to chronotropic incompetence.