1. Supraventricular arrhythmias in MINOCA patients
- Author
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M Santos, SB Paula, H Santos, I Almeida, S Almeida, J Tavares, L Santos, and ML Almeida
- Subjects
Physiology (medical) ,Cardiology and Cardiovascular Medicine - Abstract
Funding Acknowledgements Type of funding sources: None. Introduction De novo atrial fibrillation (AF) is a frequent complication of acute coronary syndromes (ACS). However, 5-15% of patients (pts) admitted with suspected acute myocardial infarction have no significant lesions on coronary angiography (>50%) (MINOCA). Contrary to initial beliefs, MINOCA is not a benign disease, given that mortality and incidence of adverse events is similar to ACS. Objective To evaluate predictors and prognosis of AF in the setting of MINOCA. Methods Based on a multicenter retrospective study, data collected from admissions between 2013 and 2020. Pts without data on cardiovascular history or uncompleted clinical data were excluded. We included 7590 pts with non-ST elevation myocardial infarction (NSTEMI). Between those, 1561 (19.2%) were MINOCA. We divided MINOCA pts in 2 groups (G): GA – MINOCA with de novo AF; GB – MINOCA without de novo AF during in-hospital stay. Results MINOCA pts’ mean age was 65±13, 62% were male and 2.1% had de novo AF. GA pts were older (76±10 vs 65±13, pI (27.8% vs 9.7%, p=0.027) and kidney function impairment (50% vs 10.2%, pI (p=0.004, OR 1.76, CI 1.19-2.61) and LVEF Conclusion As expected, AF in the setting of MINOCA is associated with poorer prognosis. Pts with older age and LV dysfunction are at higher risk of de novo AF in this population.
- Published
- 2022