Longer apneas and hypopneas are associated with greater ultra-short-term HRV in obstructive sleep apnea.

ABSTRACT: Low long-term heart rate variability (HRV), often observed in obstructive sleep apnea (OSA) patients, is a known risk factor for cardiovascular diseases. However, it is unclear how the type or duration of individual respiratory events modulate ultra-short-term HRV and beat-to-beat intervals (RR intervals). We aimed to examine the sex-specific changes in RR interval and ultra-short-term HRV during and after apneas and hypopneas of various durations. Electrocardiography signals, recorded as a part of clinical polysomnography, of 758 patients (396 men) with suspected OSA were analysed retrospectively. Average RR intervals and time-domain HRV parameters were determined during the respiratory event and the 15-s period immediately after the event. Parameters were analysed in three pooled sex-spe

SUBMITTER: Hietakoste S 

PROVIDER: S-EPMC7726571 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature