| Autor: |
Hartikainen, J. E. K., Kautzner, J., Malik, M., Camm, A. J. |
| Zdroj: |
European Heart Journal; 1997, Vol. 18 Issue 12, p1966-1972, 7p |
| Abstrakt: |
Aims The aim of this study was to compare cardiac autonomic regulation in patients with a history of paroxysmal supraventricular tachyarrhythmias, such as atrioventricular nodal reentrant tachycardia and atrioventricular reentrant tachycardia, and healthy controls. Methods and Results Seventeen patients with paroxysmal atrioventricular nodal reentrant tachycardia (atrioventricular nodal reentrant tachycardia group), 14 patients with overt preexcitation and paroxysmal atrioventricular reentrant tachycardia caused by a left free wall accessory pathway (atrioventricular reentrant tachycardia group) and 14 healthy control subjects, were studied. The patients and the controls were age and gender matched. Cardiac autonomic regulation was assessed by means of frequency domain analysis of heart rate variability at rest, during head-up tilt, active standing, treadmill exercise and after exercise. Conclusion The cardiac autonomic status in atrioventricular reentrant tachycardia patients was suggestive of a higher sympathetic tone than in atrioventricular nodal reentrant tachycardia patients or healthy controls. This may be related to inhomogeneous ventricular activation in the presence of antegrade conduction via the accessory atrioventricular pathway. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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