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Year : 2020  |  Volume : 14  |  Issue : 1  |  Page : 56-61

Effects of single dose of dexamethasone on perioperative blood glucose levels in patients undergoing surgery for supratentorial tumors – An observational study

1 Department of Anaesthesiology and Critical Care, Sheri Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
2 Department of General Medicine, Government Gousia Hospital, Srinagar, Jammu and Kashmir, India
3 Department of Endocrinology, Sheri Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India

Correspondence Address:
Dr. Zulfiqar Ali
Department of Anaesthesiology and Critical Care, Sheri Kashmir Institute of Medical Sciences, Soura, Srinagar, Jammu and Kashmir
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/aer.AER_21_20

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Introduction: Dexamethasone is commonly administered in intracranial tumors to reduce the cerebral edema. Its administration may be associated with hyperglycemia. The primary objective of this study was to study the magnitude of rise in blood sugar levels following the administration of a single 10 mg dose of dexamethasone. Methods: Seventy patients who underwent various neurosurgical procedures were enrolled in the study. Group D (n = 35 undergoing surgery for intracranial tumors) were administered injection dexamethasone 10 mg while as Group P (n = 35 undergoing surgery for subarachnoid hemorrhage) received placebo. Blood samples were obtained through the arterial line at baseline (before dexamethasone administration), 60, 120, 180, and 240 min after the dexamethasone administration and blood glucose concentrations noted. Results: Glucose concentrations were significantly increased in patients who received dexamethasone compared with those who received placebo (P < 0.05). Blood glucose concentrations at different time intervals were greater when compared with the baseline blood sugar levels in both the placebo and dexamethasone group (P < 0.05). The arterial blood glucose concentration in those who received 10 mg dexamethasone (n = 35) increased from 95.29 ± 13.69 mg.dl−1 to 139.97 ± 10.34 mg.dl−1 over 4 h, compared with a change from 94.74 ± 10.05 mg.dl−1 to 122.34 ± 10.68 mg.dl−1 in those who received placebo (n = 35) (P < 0.05). Conclusion: The administration of a single intravenous dose of 10-mg dose dexamethasone caused a significant increase in the blood glucose concentrations at different point intervals when compared with the placebo over a 4-h period. We recommend intensive monitoring of the blood sugar levels during the intraoperative period to prevent the development of severe hyperglycemia and its associated complications.

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