First-degree atrioventricular block in acute anterior myocardial infarction.

Autor: Zabeh, Arvin, Jahanafrouz, Masoumeh, Kazemi, Babak, Pourafkari, Leili, Davarmoin, Ghiti, Separham, Ahmad
Zdroj: Asian Cardiovascular & Thoracic Annals; May2021, Vol. 29 Issue 4, p254-259, 6p
Abstrakt: Background: There is paucity of data regarding the prognostic implications of first-degree atrioventricular block in patients with acute anterior myocardial infarction as a distinct group. The aim of this study was to elucidate the association of prolonged PR interval with hospital clinical outcomes in patients with treated with thrombolysis. Methods: Three hundred consecutive patients with a first acute anterior ST-segment elevation myocardial infarction undergoing thrombolysis between October 2017 and March 2018, were retrospectively enrolled in this study. They were divided into two groups based on PR interval on admission: PR interval ≤200 ms, and PR interval > 200 ms. Hospital mortality and complications were compared between the 2 groups. Results: Of the 300 patients, 26 (8.66%) had first-degree atrioventricular block on initial presentation. Overall, hospital death occurred in 20 (6.66%) patients. Patients with PR interval > 200 ms had a higher hospital mortality rate (26.9%) than those without (4.7%, p < 0.001). In multivariate Cox regression analysis, only left ventricular systolic function and PR interval were independent predictors of hospital mortality (odds ratio = 1.031; 95% confidence interval: 1.008-1.056, p = 0.009 for PR interval). Conclusion: In patients with a first acute anterior ST-segment elevation myocardial infarction treated with thrombolysis, first-degree atrioventricular block was associated with increased hospital mortality and a worse prognosis. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index