Electrocardiographic QRS-T angle and the risk of incident silent myocardial infarction in the Atherosclerosis Risk in Communities study

Journal of Electrocardiology
Zhu-Ming ZhangElsayed Z Soliman

Abstract

Silent myocardial infarction (SMI) accounts for about half of the total number of MIs, and is associated with poor prognosis as is clinically documented MI (CMI). The electrocardiographic (ECG) spatial QRS/T angle has been a strong predictor of cardiovascular outcomes. Whether spatial QRS/T angle also is predictive of SMI, and the easy-to-obtain frontal QRS/T angle will show similar association are currently unknown. We examined the association between the spatial and frontal QRS/T angles, separately, with incident SMI among 9498 participants (mean age 54years, 57% women, and 20% African-American), who were free of cardiovascular disease at baseline (visit 1, 1987-1989) from the Atherosclerosis Risk in Communities (ARIC) study. Incident SMI was defined as MI occurring after the baseline until visit 4 (1996-1998) without CMI. The frontal plane QRS/T angle was defined as the absolute difference between QRS axis and T axis. Values greater than the sex-specific 95th percentiles of the QRS/T angles were considered wide (abnormal). A total of 317 (3.3%) incident SMIs occurred during a 9-year median follow-up. In a model adjusted for demographics, cardiovascular risk factors and potential confounders, both abnormal frontal (HR 2.28, 9...Continue Reading

Citations

Jun 7, 2018·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Tugce ColluogluDayimi Kaya
Oct 30, 2019·Scandinavian Cardiovascular Journal : SCJ·Mevlüt Serdar KuyumcuÇağrı Yayla
Dec 18, 2020·Revista da Associação Médica Brasileira·Mevlüt Serdar KuyumcuErdoğan İbrişim
Dec 22, 2020·Terapevticheskiĭ arkhiv·E V BlinovaE S Yurasova
Mar 2, 2021·Clinical and Experimental Hypertension : CHE·Ali Bağcı, Fatih Aksoy
Mar 27, 2021·Journal of Electrocardiology·Ferhat IşıkErkan Baysal
May 29, 2021·European Heart Journal. Digital Health·James D PollardLarisa G Tereshchenko
Jun 13, 2021·International Journal of Clinical Practice·Iclal HocanliMustafa Begenc Tascanov
Nov 25, 2021·Human & Experimental Toxicology·Yusuf K TekinSefa Yurtbay

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