Title of article :
Sleep related bradyarrhythmic events and heart rate variability in apparently healthy individuals
Author/Authors :
Çimen, Tolga Department of Cardiology - Dışkapı Yıldırım Beyazıt Training and Research Hospital - Ankara - Turkey , Sunman, Hamza Department of Cardiology - Dışkapı Yıldırım Beyazıt Training and Research Hospital - Ankara - Turkey , Erat, Mehmet Department of Cardiology - Dışkapı Yıldırım Beyazıt Training and Research Hospital - Ankara - Turkey , Han Efe, Tolga Department of Cardiology - Dışkapı Yıldırım Beyazıt Training and Research Hospital - Ankara - Turkey , Akyel, Ahmet Department of Cardiology - Dışkapı Yıldırım Beyazıt Training and Research Hospital - Ankara - Turkey , Bilgin, Murat Department of Cardiology - Dışkapı Yıldırım Beyazıt Training and Research Hospital - Ankara - Turkey , Açıkel, Sadık Department of Cardiology - Dışkapı Yıldırım Beyazıt Training and Research Hospital - Ankara - Turkey , Doğan, Mehmet Department of Cardiology - Dışkapı Yıldırım Beyazıt Training and Research Hospital - Ankara - Turkey , Yeter, Ekrem Department of Cardiology - Dışkapı Yıldırım Beyazıt Training and Research Hospital - Ankara - Turkey
Pages :
6
From page :
235
To page :
240
Abstract :
Objective: It is thought that abnormal cardiac impulses of the autonomic nervous system during sleep are responsible for sleep-related bradyarrhythmias. Despite a proposed common etiopathogenesis and having common name of “sleep-related bradyarrhythmias,” precise importance of sinoatrial or atrioventricular (AV) node involvement remains elusive. This study aimed to determine whether there is a difference in sleeprelated bradyarrhythmias from the point of view of heart rate variability (HRV). Methods: Patients were evaluated using 24-hour Holter electrocardiogram monitor. After careful medical evaluation, apparently healthy individuals with sleep-related sinus pauses ≥2 seconds on at least 1 occasion or those in whom Mobitz type I AV block occurred were included. Frequency and time domain analyses were conducted for daytime, nighttime, and 24-hour period. Results: Total of 37 patients with sinus pause(s), 40 patients with Mobitz type I AV block(s), and 40 healthy controls were included. On HRV analyses, all time and frequency domain parameters were better in sinus pause group for daytime, nighttime, and 24-hour average (p<0.05 for all). Results of heart rate-corrected HRV analyses still showed significantly better total power (TP) and very low frequency (VLF) in the sinus pause group compared with AV block group (TP: 7.1x10-3 vs. 5.4x10-3, p=0.011; VLF: 4.9x10-3 vs. 3.7x10-3, p=0.007). Conclusion: Despite proposed common autonomic mechanisms, sleep-related sinus pause cases demonstrated better HRV profile in comparison with Mobitz type I AV block. (Anatol J Cardiol 2017; 17: 235-40) Keywords:
Keywords :
atrioventricular block , heart rate variability , REM sleep-related sinus arrest , vagal syndromes
Journal title :
The Anatolian Journal of Cardiology: Andolu Kardiyoloji Dergisi
Serial Year :
2017
Full Text URL :
Record number :
2616668
Link To Document :
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