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Effect of glucose-insulin-potassium on hyperlactataemia in patients undergoing valvular heart surgery: A randomised controlled study

 Roh, Go Un  ;  Shim, Jae Kwang  ;  Song, Jong Wook  ;  Kang, Hye Min  ;  Kwak, Young Lan 
 European Journal of Anaesthesiology, Vol.32(8) : 555-562, 2015 
Journal Title
 European Journal of Anaesthesiology 
Issue Date
BACKGROUND: Hyperlactataemia represents oxygen imbalance in the tissues and its occurrence during cardiac surgery is associated with adverse outcomes. Glucose-insulin-potassium (GIK) infusion confers myocardial protection against ischaemia-reperfusion injury and has the potential to reduce lactate release while improving its clearance. OBJECTIVES: The objective of this study is to compare the effect of GIK on the incidence of hyperlactataemia in patients undergoing valvular heart surgery. DESIGN: A randomised controlled study. SETTING: Single university teaching hospital. PATIENTS: One hundred and six patients scheduled for elective valvular heart surgery with at least two of the known risk factors for hyperlactataemia. INTERVENTION: Patients were randomly allocated to receive either GIK solution (insulin 0.1 IU kg(-1) h(-1) and an infusion of 30% dextrose and 80 mmol l(-1) potassium at 0.5 ml kg(-1) h(-1)) or 0.9% saline (control) throughout surgery. MAIN OUTCOME MEASURES: The primary outcome was the incidence of hyperlactataemia (lactate ≥ 4 mmol l(-1)) during the operation and until 24 h after the operation. Secondary outcomes included haemodynamic parameters, use of vasopressor or inotropic drugs, and fluid balance until 24 h postoperatively. Postoperative morbidity endpoints were also assessed. RESULTS: The incidences of hyperlactataemia were similar in the groups (32/53 patients in each of the control and GIK groups, P > 0.999). There were no intergroup differences in haemodynamic parameters, use of vasopressor and inotropic drugs, or fluid balance. The incidences of postoperative morbidity endpoints were similar in both groups. CONCLUSION: Despite its theoretical advantage, GIK did not provide beneficial effects in terms of the incidence of hyperlactataemia or outcome in patients undergoing valvular heart surgery.
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1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Kwak, Young Lan(곽영란) ORCID logo https://orcid.org/0000-0002-2984-9927
Song, Jong Wook(송종욱) ORCID logo https://orcid.org/0000-0001-7518-2070
Shim, Jae Kwang(심재광) ORCID logo https://orcid.org/0000-0001-9093-9692
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