C Iavazzo1, M McComiskey2, M Datta2, M Ryan2, J Kiernan2, B Winter-Roach2, R Slade2, M Smith2. 1. Gynaecological Oncology Department, Christie Hospital, 550 Wilmslow Rd, Manchester, M20 4BX, UK. christosiavazzo@hotmail.com. 2. Gynaecological Oncology Department, Christie Hospital, 550 Wilmslow Rd, Manchester, M20 4BX, UK.
Abstract
BACKGROUND: HBA1c is used as an indicator for the long-term control of the glycaemic state and outcome predictors in diabetic patients. Diabetic patients have an increased risk of post-operative complications especially those related to infection. The aim of our study is to ascertain the relationship between HBA1c levels and post-operative recovery within the subspecialty of gynaecological oncology. METHOD: Prospective cohort study during the period 1 August 2012 through 31 August 2014. Preoperative measurement of HBA1c on all gynaecological oncology patients that underwent major surgery. Patient variables collected and analysed were BMI (kg/m(2)), length of stay (LOS in days), cancer stage (stage 1 through stage 4), infective complications, non-infective complications and readmission to hospital. RESULTS: A total of 300 patients were included in our study, 34 of them were known to be diabetic while 266 were presumed to be non-diabetic. Of the presumed non-diabetic cohort, 17.3 % (46/266) had impaired glucose tolerance or diabetes. Mean BMI was significantly increased in the pre-existing diabetic group (32.8 vs. 29.3 kg/m(2), p = 0.016). Infective complications were almost double the rate amongst the known diabetic women than those presumed to be non-diabetic (32.4 vs. 18.0 %, p = 0.048). Rate of re-admission to hospital due to complications was 20.6 % in the diabetic group and 4.1 % within the presumed non-diabetic group (p < 0.001). Infective complications occurred in 16.9 % of women with HBA1c <42 mmol/mol, 22.7 % of those with HBA1c of 42-47 mmol/mol, 43.5 % of patients with HBA1c 48-64 mmol/mol and 37.5 % of patients with HBA1c >64 mmol/mol. Non-infective complications were also more frequent in women with elevated HBA1c (11.1, 22.7, 26.1 and 12.5 % in those women with HBA1c <42, 42-47, 48-64 and >64 mmol/mol, respectively). Re-admission to hospital within 30 days for a complication of surgery occurred in 4.4 % of women with HBA1c <42 mmol/mol, 4.5 % of women with HBA1c measured at 42-47 mmol/mol, 30.8 % of those with HBA1c 48-64 mmol/mol and 25 % of women with HBA1c >64 mmol/mol. CONCLUSION: Preoperative measurement of HBA1c may identify patients (both diabetic and non-diabetic women) at higher risk of postoperative complications and could be used as a trigger for modification of the perioperative management of such patients.
BACKGROUND: HBA1c is used as an indicator for the long-term control of the glycaemic state and outcome predictors in diabeticpatients. Diabeticpatients have an increased risk of post-operative complications especially those related to infection. The aim of our study is to ascertain the relationship between HBA1c levels and post-operative recovery within the subspecialty of gynaecological oncology. METHOD: Prospective cohort study during the period 1 August 2012 through 31 August 2014. Preoperative measurement of HBA1c on all gynaecological oncology patients that underwent major surgery. Patient variables collected and analysed were BMI (kg/m(2)), length of stay (LOS in days), cancer stage (stage 1 through stage 4), infective complications, non-infective complications and readmission to hospital. RESULTS: A total of 300 patients were included in our study, 34 of them were known to be diabetic while 266 were presumed to be non-diabetic. Of the presumed non-diabetic cohort, 17.3 % (46/266) had impaired glucose tolerance or diabetes. Mean BMI was significantly increased in the pre-existing diabetic group (32.8 vs. 29.3 kg/m(2), p = 0.016). Infective complications were almost double the rate amongst the known diabeticwomen than those presumed to be non-diabetic (32.4 vs. 18.0 %, p = 0.048). Rate of re-admission to hospital due to complications was 20.6 % in the diabetic group and 4.1 % within the presumed non-diabetic group (p < 0.001). Infective complications occurred in 16.9 % of women with HBA1c <42 mmol/mol, 22.7 % of those with HBA1c of 42-47 mmol/mol, 43.5 % of patients with HBA1c 48-64 mmol/mol and 37.5 % of patients with HBA1c >64 mmol/mol. Non-infective complications were also more frequent in women with elevated HBA1c (11.1, 22.7, 26.1 and 12.5 % in those women with HBA1c <42, 42-47, 48-64 and >64 mmol/mol, respectively). Re-admission to hospital within 30 days for a complication of surgery occurred in 4.4 % of women with HBA1c <42 mmol/mol, 4.5 % of women with HBA1c measured at 42-47 mmol/mol, 30.8 % of those with HBA1c 48-64 mmol/mol and 25 % of women with HBA1c >64 mmol/mol. CONCLUSION: Preoperative measurement of HBA1c may identify patients (both diabetic and non-diabeticwomen) at higher risk of postoperative complications and could be used as a trigger for modification of the perioperative management of such patients.
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