@Article{Biskupski2014,
journal="Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery",
issn="1731-5530",
volume="11",
number="1",
year="2014",
title="Glycated hemoglobin HbA1c – a new risk marker for the outcome of cardiac surgery?",
abstract=" Introduction:  About 30% of patients undergoing cardiac surgery are diabetic, and glycated hemoglobin (HbA 1c ) is a reliable marker for long-term glucose control. The aim of our study was to examine whether tight glucose control before a cardiac operation results in a better outcome of the surgical treatment.   Material and methods : We performed a retrospective record review of 350 diabetic patients undergoing cardiac surgery in our institution. Preoperative glycemia control was assessed by measurement of the glycated hemoglobin level. The patient population was divided into three groups: group I – patients with HbA 1c  below 7% (n = 195); group II – patients with HbA 1c  between 7% and 8% (n = 88); and group III – patients with HbA 1c  above 8% (n = 67).   Results : The demographic data and operating risk in all groups of patients were similar. There were 2 deaths (1.02%) in group I, 2 deaths (2.27%, p = 0.78) in group II and 3 deaths (4.47%, p = 0.20) in group III. Cardiac accidents occurred in 9 patients (4.60%) from group I, 7 patients (7.95%, p = 0.20) from group II, and in 6 patients (9.05%, p = 0.40) from group III. Cerebrovascular accidents (CVA) occurred in 7 (3.58%), 5 (5.68%, p = 0.67) and 5 (7.46%, p = 0.61) patients, respectively. Acute renal dysfunction requiring renal replacement therapy occurred in 4 patients from group I (2.05%), 3 patients from group II (3.40%, p = 0.78) and 4 patients from group III (5.97%, p = 0.23).   Conclusions : A large percentage of diabetic patients referred for cardiac operations have poorly controlled glycemia. Optimal preoperative glycemia control results in lower postoperative mortality and morbidity. In addition, the preoperative HbA 1c  level is a good indicator of the risk of postoperative complications in diabetic patients undergoing cardiac operations.",
author="Biskupski, Andrzej
and Waligórski, Szymon
and Kowalik, Bogdan
and Żych, Andrzej
and Sielicki, Piotr
and Mirecki, Oktawiusz
and Grudniewicz, Seweryn
and Brykczyński, Mirosław",
pages="7--11",
doi="10.5114/kitp.2014.41922",
url="http://dx.doi.org/10.5114/kitp.2014.41922"
}