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Heart rate variability parameters in children with ventricular preexcitation
Author(s) -
Koca Serhat,
Pac Feyza Aysenur,
Mihcioglu Ajda,
Eris Deniz,
Cay Serkan,
Ozeke Ozcan
Publication year - 2018
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/jce.13613
Subject(s) - medicine , cardiology , heart rate variability , asymptomatic , tachycardia , autonomic nervous system , accessory pathway , electrocardiography , ventricular tachycardia , electrophysiology , balance (ability) , heart rate , atrial fibrillation , catheter ablation , physical therapy , blood pressure
The autonomic nervous system has a regulatory effect on cardiac electrophysiology and arrhythmogenesis. We aimed to assess cardiac autonomic status using heart rate variability (HRV) parameters in children with ventricular preexcitation. Methods The electrocardiography, Holter monitoring, transesophageal electrophysiological study (TEEPS), and invasive electrophysiological study (EPS) results of ventricular preexcitation patients obtained over a 7‐year period in our clinic were evaluated. According to the TEEPS results, patients’ accessory pathway conduction was classified as adverse (n = 40) or nonadverse (n = 25). The HRV parameters of patients were compared according to tachycardia inducibility that assessed by TEEPS and EPS. Also, HRV parameters were compared in patients with adverse and nonadverse pathway conduction. Further, the HRV parameters of preexcitation patients were compared with those of healthy controls. Results LF/HF, the best measure of sympathovagal balance, was statistically higher in patients with adverse conduction than in patients without adverse conduction and controls (P = 0.001). The LF/HF ratio was higher in ventricular preexcitation patients with inducible tachycardia than those without in EPS (P = 0.001). In addition, the LF/HF ratio was higher in symptomatic ventricular preexcitation patients than asymptomatic ones (P = 0.001). No difference in HRV parameters was found between preexcitation patients and controls. Conclusion Autonomic tonus in patients with ventricular preexcitation may affect accessory pathway conduction properties, tachycardia inducibility, and symptomology. The indicator of sympathovagal balance, LF/HF ratio, increased in ventricular preexcitation patients with inducible tachycardia and those that were symptomatic.