OBJECTIVE: To evaluate if glycosylated haemoglobin 1 (HbA1c) was associated with increased risk of infection and mortality after coronary artery bypass grafting (CABG). DESIGN: Prospective observational study. Preoperative HbA1c concentrations were correlated to outcome in patients followed for an average of 3.5 years after CABG. RESULTS: HbA1c was > or =6% in 68% of 161 patients with diabetes mellitus (DM) and in 3% of 444 patients without DM. Superficial sternal wound infection was observed in 13.9% if HbA1c > or =6% versus in 5.5% if <6% (p=0.007). Mediastinitis occurred in 4.9% if HbA1c > or =6% and in 2.1% if HbA1c <6% (p=0.20) (Hazard ratio (HR) 1.9, 95% CI 0.6-5.9). Follow-up mortality was 18.9% in patients with HbA1c > or =6% compared to 4.1% if HbA1c <6% (p<0.001) with HR 5.4, (95% CI 3.0-10.0) after multivariable adjustment. The risk of death was similar regardless of DM diagnosis. CONCLUSIONS: HbA1c > or =6% was associated with an increased risk of postoperative superficial sternal wound infections and a trend for higher mediastinitis rate and significantly higher mortality three years after CABG.
OBJECTIVE: To evaluate if glycosylated haemoglobin 1 (HbA1c) was associated with increased risk of infection and mortality after coronary artery bypass grafting (CABG). DESIGN: Prospective observational study. Preoperative HbA1c concentrations were correlated to outcome in patients followed for an average of 3.5 years after CABG. RESULTS: HbA1c was > or =6% in 68% of 161 patients with diabetes mellitus (DM) and in 3% of 444 patients without DM. Superficial sternal wound infection was observed in 13.9% if HbA1c > or =6% versus in 5.5% if <6% (p=0.007). Mediastinitis occurred in 4.9% if HbA1c > or =6% and in 2.1% if HbA1c <6% (p=0.20) (Hazard ratio (HR) 1.9, 95% CI 0.6-5.9). Follow-up mortality was 18.9% in patients with HbA1c > or =6% compared to 4.1% if HbA1c <6% (p<0.001) with HR 5.4, (95% CI 3.0-10.0) after multivariable adjustment. The risk of death was similar regardless of DM diagnosis. CONCLUSIONS: HbA1c > or =6% was associated with an increased risk of postoperative superficial sternal wound infections and a trend for higher mediastinitis rate and significantly higher mortality three years after CABG.
Authors: Joseph T McGinn; Masood A Shariff; Tariq M Bhat; Basem Azab; William J Molloy; Elaena Quattrocchi; Mina Farid; Ann M Eichorn; Yosef D Dlugacz; Robert A Silverman Journal: J Cardiothorac Surg Date: 2011-09-02 Impact factor: 1.637
Authors: Roma Y Gianchandani; Sima Saberi; Preethi Patil; Richard L Prager; Rodica Pop-Busui Journal: Front Endocrinol (Lausanne) Date: 2015-08-11 Impact factor: 5.555
Authors: P Barker; P E Creasey; K Dhatariya; N Levy; A Lipp; M H Nathanson; N Penfold; B Watson; T Woodcock Journal: Anaesthesia Date: 2015-09-29 Impact factor: 6.955