Why the study?
Acute myocardial infarction frequently results in atrial fibrillation, which has a documented incidence ranging from 2.3 to 21%, prompting an evaluation of its incidence and effect on outcomes.
New-onset atrial fibrillation complicates approximately 8% of acute myocardial infarctions and is associated with high mortality, particularly in elderly patients and those presenting with hemodynamic instability or heart failure.
Background and aims: Acute myocardial infarction (AMI) frequently results in atrial brillation, which has a documented incidence ranging from 2.3 to 21%. This paper aims to evaluate the incidence of atrial brillation in a setting of myocardial infarction and the effect of this arrhythmia on the outcome. Materials and methods:This institution - based observational study was conducted on 110 patients attending the different units of Medicine Department and Cardiology Department of Gauhati Medical College and Hospital during the period from 1ST July 2021 to 30th June 2022. All patients had undergone Routine blood investigations, 12 – lead ECG, 2D ECHO, Serum Electrolytes, Cardiac Markers Results: the study showed that 9 patients out of 110 had new onset atrial brillation in the hospital course i.e. in this study overall incidence of AF in AMI is 8.18% of which, 44.4% succumbed to death. Incidence of AF in AMI in patients with age ≥60 years is 13.33%. Conclusion: The occurrence of AF in a setting of AMI is worth studying as there are numerous challenges in the management and follow up of these groups of patients. Elderly individuals, patients with tachycardia (HR>100/min), hypotension (SBP<100 mm of Hg) and heart failure with Killip class ≥3 are more prone to develop AF after AMI
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Badal et al. (2023) studied this question.
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