Key result
Reduced RR variability is linked to increased risk of adverse events and mortality post-MI.
Why the study?
The prognostic significance of RR variability and its association with adverse events and mortality after acute myocardial infarction needed confirmation.
Does reduced RR variability predict adverse events, mortality, and atrial fibrillation in patients with acute myocardial infarction?
Observational
Does reduced RR variability predict adverse events, mortality, and atrial fibrillation in patients with acute myocardial infarction?
Reduced RR variability serves as a prognostic indicator for mortality, adverse events, and atrial fibrillation in patients following an acute myocardial infarction.
Supports RR variability as post-MI prognostic marker; leaves open incremental value beyond standard risk models.
Heart rate variability (HRV) is a simple measure that estimates cardiac autonomic modulation. Analysis in the time domain and frequency range of RR variability suggests that the negative prognosis of patients with acute myocardial infarction is related to the overall neuro-vegetative imbalance. The alteration of RR variability reflects the dysfunction of the autonomic nervous system and especially the reduction of parasympathetic tone. The results of this study confirm the association between the reduction of RR variability and the increased risk of adverse events and mortality after acute myocardial infarction. Moreover, it appears that RR variability is an independent predictor for atrial fibrillation.
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Apostol et al. (2020) conducted an observational in Acute myocardial infarction. Reduced RR variability was evaluated on Adverse events and mortality. Reduced RR variability was associated with an increased risk of adverse events, mortality, and atrial fibrillation after acute myocardial infarction.
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