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Type: Journal article
Title: Evaluation of gender differences in door-to-balloon time in ST-elevation myocardial infarction
Author: Dreyer, R.
Beltrame, J.
Tavella, R.
Air, T.
Hoffmann, B.
Pati, P.
Di Fiore, D.
Arstall, M.
Zeitz, C.
Citation: Heart Lung and Circulation, 2013; 22(10):861-869
Publisher: Blackwell Publishing Asia
Issue Date: 2013
ISSN: 1443-9506
Statement of
Rachel P. Dreyer, John F. Beltrame, Rosanna Tavella, Tracy Air, Bernadette Hoffmann, Purendra K. Pati, David Di Fiore, Margaret Arstall, and Christopher Zeitz
Abstract: <h4>Background</h4>A delayed Door-to-Balloon (DTB) time in women with ST-elevation myocardial infarction (STEMI) has been associated with an increased mortality. The objectives of this study were to (a) quantify the components of the delayed DTB time in women and (b) assess the independent effect of gender on DTB time in patients undergoing percutaneous coronary intervention (PCI) for STEMI.<h4>Methods</h4>Clinical parameters were prospectively collected for 735 STEMI patients undergoing primary PCI from 2006 to 2010, with particular attention to the components of DTB time, including the onset of chest pain and the 'code' notification of the STEMI team by the Emergency Department.<h4>Results</h4>Women were significantly older with more co-morbidity. Upon hospital arrival they also experienced delays in Door-to-Code (23 vs. 17 min, P=.012), Code-to-Balloon (63 vs. 57 min, P=.001) and thus DTB time (88 vs. 72 min, P=.001). After multivariate adjustment, independent determinants of DTB time included female gender (ratio of geometric means [RGM]=1.13; 95% CI 1.02-1.26; P=.022), hypertension (RGM=1.12, 95% CI 1.02-1.23, P=.014), maximum ST-elevation (RGM=0.97, 95% CI 0.94-0.98, P<.001), office hours (RGM=0.84, 95% CI 0.78-0.92, P<.001) and triage category (RGM=1.23, 95% CI 1.09-1.40, P=.001).<h4>Conclusions</h4>Women experience delays in identification of the STEMI diagnosis and also in the PCI process. Thus a multifaceted approach addressing both the diagnosis and management of STEMI in women is required.
Keywords: Myocardial infarction
Gender bias
Time factors
Treatment outcome
Angioplasty/balloon/coronary methods
Rights: Copyright © 2013 Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ)
DOI: 10.1016/j.hlc.2013.03.078
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