Nocturnal respiratory rate predicts non-sudden cardiac death in survivors of acute myocardial infarction

摘要

Survivors of acute myocardial infarction (MI) are at substantial risk of subsequent death due to progressive heart failure, arrhythmic events, and/or reinfarction. We have recently shown that respiratory rate measured in 10-min supine position by a piezoelectric thoracic sensor provides powerful and independent prognostic information in these patients (1). The goal of this study was to assess the prognostic potential of the nocturnal respiratory rate (NRR), assessed from standard Holter electrocardiogram recordings in a larger patient cohort. Additionally, we analyzed the association of NRR and different death modes, especially sudden (SCD) and non-sudden cardiac death (N-SCD).