Power-law properties of nocturnal arrhythmia avalanches: A novel marker for incident cardiovascular events.

ABSTRACT:

Background

Bursting nonsustained cardiac arrhythmia events are a common observation during sleep.

Objectives

The purpose of this study was to investigate the hypothesis that nocturnal arrhythmia episode durations could follow a power law, whose exponent could predict long-term clinical outcomes.

Methods

We defined "nocturnal arrhythmia avalanche" (NAA) as any instance of a drop in electrocardiographic (ECG) template-matched R-R intervals ≥30% of R-R baseline, followed by a return to 90% of baseline. We studied NAA in ECG recordings obtained from the Sleep Heart Health Study (SHHS), Osteoporotic Fractures in Men Study (MrOS) Study, and Multi-Ethnic Study of Atherosclerosis (MESA). The association of nocturnal arrhythmia durations with a power-law distribution was evalu

SUBMITTER: Shahrbabaki SS 

PROVIDER: S-EPMC12912814 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature