First-degree atrioventricular block in acute anterior myocardial infarction

BACKGROUNDThere 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 i...

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Published in:Asian cardiovascular & thoracic annals 2021-05, Vol.29 (4), p.254-259
Main Authors: Zabeh, Arvin, Jahanafrouz, Masoumeh, Kazemi, Babak, Pourafkari, Leili, Davarmoin, Ghiti, Separham, Ahmad
Format: Article
Language:English
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Summary:BACKGROUNDThere 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. METHODSThree 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. RESULTSOf 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 
ISSN:0218-4923
1816-5370
DOI:10.1177/0218492320971489