Electrophysiologic evaluation of sinus node function and atrioventricular conduction in patients with prolonged ventricular asystole during obstructive sleep apnea

Sleep Apnea and Cardiovascular Disease

“…226,235 Electrophysiological characteristics of the sinus node and atrial conduction system in OSA subjects with nocturnal bradyarrhythmias were normal or nearly normal while awake, and CPAP reversed the bradyarrhythmias, suggesting that OSA may have induced the arrhythmias. 234,236,237 First-line treatment of bradyarrhythmias in the setting of obstructive apneas and normal conduction would consist of treatment of OSA. Data emerging from the European Multi-Center Polysomnographic Study show a remarkably high prevalence (59%) of sleep apnea syndrome in patients with pacemakers.…”

2015 ESC Guidelines for the management of patients with ventricular arrhythmias and the prevention of sudden cardiac death

“…Najczęstszymi zaburzeniami rytmu serca obserwowanymi u pacjentów z zespołem bezdechów i spłyceń oddechu podczas snu są tachykardia zatokowa, zahamowania zatokowe, blok AV I stopnia i II stopnia typu Mobitz I (periodyka Wenckebacha), a także zwiększona częstość występowania PVC [719][720][721][722][723][724]. Wykazano dobowy rytm występowania komorowych zaburzeń rytmu [712,[725][726][727][728][729] oraz większą częstość występowania SCD w porze snu (od północy do 6:00 rano).…”

Obstructive Sleep Apnea and Cardiovascular Disease

“…75,80,81 Nocturnal bradyarrhythmias in OSA patients can occur with electrophysiologically normal cardiac conduction and should be treated by CPAP before the implantation of a pacemaker. 80,82,83 Ventricular Arrhythmias There may be a heightened prevalence of SDB in patients with ventricular arrhythmias and normal left ventricular function. 84 Ventricular arrhythmias are more common in patients with left ventricular dysfunction, and may increase the risk of sudden cardiac death.…”