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A Journal on Cardiac, Vascular and Thoracic Surgery

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The Journal of Cardiovascular Surgery 2015 October;56(5):817-23

language: English

Sex differences in patient and procedural characteristics and early outcomes following cardiac surgery

Trienekens M. P. 1, Maas A. H. 2, Timman S. T. 2, Van Swieten H. A. 1, Noyez L. 1

1 Department of Cardio‑Thoracic Surgery – 677, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands;
2 Department of Cardiology – 670, Nijmegen, The Netherlands


AIM: The purpose of this study was to evaluate whether women undergoing cardiac surgery are more likely to suffer postoperative complications and mortality than men with respect to baseline and procedural characteristics.
METHODS: Data of 4030 adult patients undergoing cardiac surgery between January 2007 and June 2012 were retrospectively analyzed; 3075 isolated CABGs (CABG-group) and 955 aortic valve replacements (AVR) whether or not in combination with CABG (VALVE-group) The total study population, had a mean age 69.6 ±10.3 years, and there were 1073/4030 women (26.6%).
RESULTS: Female patients were older (P=0.001), at higher EuroSCORE risk (P=0.001) and have a higher BMI (P=0.001). In the CABG-group female patients receive fewer distal anastomoses (P=0.001) and arterial grafts were less frequently used (P=0.002). In the combined procedures in women less distal anastomoses were applied (P=0.029). Postoperative female CABG patients have a higher hospital mortality (P=0.031) and early mortality (P=0.019). In the VALVE group there is no difference in hospital or early mortality between both genders. Binary logistic regression did not identify female gender as an independent risk factor for hospital- or early mortality in both patient groups.
CONCLUSION: Although female patients undergoing cardiac surgery are older and at higher risk, female gender is not an independent risk factor. The operative procedure and gender related differences in treatment may be important and affect the outcome.

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