BACKGROUND: ST-segment shifts in lead aVR are associated with increased coronary atherosclerosis. However, there is insufficient data about the relationship between ST-segment shifts in lead aVR and coronary complexity. The aim of this study was to investigate this relationship. METHODS: This prospective, observational study included 236 patients with acute coronary syndrome who underwent coronary angiography. Electrocardiograms on presentation were reviewed in terms of ST-segment shifts in lead aVR. Inter-observer agreement was analyzed using kappa statistics for the presence of aVR lead ST segment shifts. The patients were divided into two groups according to their Sx scores (≤ 22 and > 22). RESULTS: The mean age of the study population was 62.19 ± 12 years. Eighty-seven patients (37%) had complex coronary artery disease as defined by intermediate-high Sx scores, and 130 patients (55%) had ST-segment shifts in lead aVR. In multivariate logistic regression analysis, ST-segment elevation or depression ≥ 1 mm were independently associated with intermediate-high Sx scores. CONCLUSIONS: In patients with acute coronary syndrome, the presence of ST-segment elevation or depression ≥ 1 mm in lead aVR may indicate coronary complexity.
BACKGROUND: ST-segment shifts in lead aVR are associated with increased coronary atherosclerosis. However, there is insufficient data about the relationship between ST-segment shifts in lead aVR and coronary complexity. The aim of this study was to investigate this relationship. METHODS: This prospective, observational study included 236 patients with acute coronary syndrome who underwent coronary angiography. Electrocardiograms on presentation were reviewed in terms of ST-segment shifts in lead aVR. Inter-observer agreement was analyzed using kappa statistics for the presence of aVR lead ST segment shifts. The patients were divided into two groups according to their Sx scores (≤ 22 and > 22). RESULTS: The mean age of the study population was 62.19 ± 12 years. Eighty-seven patients (37%) had complex coronary artery disease as defined by intermediate-high Sx scores, and 130 patients (55%) had ST-segment shifts in lead aVR. In multivariate logistic regression analysis, ST-segment elevation or depression ≥ 1 mm were independently associated with intermediate-high Sx scores. CONCLUSIONS: In patients with acute coronary syndrome, the presence of ST-segment elevation or depression ≥ 1 mm in lead aVR may indicate coronary complexity.
Entities:
Keywords:
Coronary complexity; Lead aVR; ST-segment shifts; Syntax score
Authors: Paweł Rostoff; Wiesława Piwowarska; Ewa Konduracka; Anna Libionka; Marzena Bobrowska-Juszczuk; Katarzyna Stopyra; Andrzej Gackowski; Aleksander Kubinyi; Bohdan Nessler; Danuta Mroczek-Czernecka Journal: Kardiol Pol Date: 2005-02 Impact factor: 3.108
Authors: Georgios Sianos; Marie-Angèle Morel; Arie Pieter Kappetein; Marie-Claude Morice; Antonio Colombo; Keith Dawkins; Marcel van den Brand; Nic Van Dyck; Mary E Russell; Friedrich W Mohr; Patrick W Serruys Journal: EuroIntervention Date: 2005-08 Impact factor: 6.534
Authors: Marco Valgimigli; Patrick Washington Serruys; Keiichi Tsuchida; Sophia Vaina; Marie-Angèle Morel; Marcel J van den Brand; Antonio Colombo; Marie Claude Morice; Keith Dawkins; Bernard de Bruyne; Ran Kornowski; Stefano de Servi; Giulio Guagliumi; J Wouter Jukema; Frederick W Mohr; Arie-Pieter Kappetein; Kristel Wittebols; Hans-Peter Stoll; Eric Boersma; Giovanni Parrinello Journal: Am J Cardiol Date: 2007-03-06 Impact factor: 2.778
Authors: Cheuk-Kit Wong; Wanzhen Gao; Ralph A H Stewart; Jocelyne Benatar; John K French; Philip E G Aylward; Harvey D White Journal: Eur Heart J Date: 2010-05-31 Impact factor: 29.983
Authors: Robert L Wilensky; Faith Selzer; Janet Johnston; Warren K Laskey; Bruce D Klugherz; Peter Block; Howard Cohen; Katherine Detre; David O Williams Journal: Am J Cardiol Date: 2002-08-01 Impact factor: 2.778