ArticleMedicine2017
ST segment change and T wave amplitude ratio in lead aVR associated with coronary artery disease severity in patients with non-ST elevation myocardial infarction: A retrospective study.
Article in Medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 9 citations in OpenAlex.
- Prognostic Value of T-wave Positivity in Lead aVR in COVID-19 Pneumonia.Revista da Associacao Medica Brasileira (1992) · 2022Article
- The utility of SYNTAX score predictability by electrocardiogram parameters in patients with unstable angina.BMC cardiovascular disorders · 2022Article
- Importance of lead aVR on predicting adverse cardiac events in patients with noncompaction cardiomyopathy.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2020Article
- T wave positivity in lead aVR is associated with mortality after transcatheter aortic valve implantation.Archives of medical sciences. Atherosclerotic diseases · 2019Article
- Prognostic value of positive T wave in lead aVR in patients with non-ST segment myocardial infarction.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2018Article
- Lead aVR is a predictor for mortality in heart failure with preserved ejection fraction.Indian heart journalArticle
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Non-ST elevation myocardial infarction (NSTEMI) severity is difficult only with electrocardiogram (ECG). In most cases, NSTEMI patients are followed with cardiac enzymes without early invasive intervention if no severe chest pain exists in the emergency department (ED) or coronary intensive care unit (CICU).Our aim was to evaluate association between CAD severity and ST segment change in lead aVR (STaVR)/T wave amplitude in lead aVR (TAaVR) ratio in patients with NSTEMI.We included 306 patients with NSTEMI in the ED between 2015 and 2016. STaVR and TAaVR values were measured from 12-derivation ECG underwent on admission to the ED. The absolute values of STaVR and TAaVR were calculated and the following were obtained; ratio 1:|STaVR|/|TAaVR|, ratio 2:|TAaVR|/|STaVR|, and ratio 3: by dividing the variable with larger absolute value to other variable with smaller absolute value (|larger value|/|smaller value|). The SYNTAX score (SS) was calculated from coronary angiography in all patients.In analysis of the bivariate correlation between SS and ratios; significantly positive, strongly with ratio 3 (r = 0.692, P < .001), and only ratio 3 was determined to be an independent predictor for SS in linear regression analysis (OR: 0.642, 95% CI: 0.432-0.853, P = .001).Severity of CAD may be estimated by evaluating STaVR and TAaVR ratio in patients with NSTEMI.
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