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Year : 2014  |  Volume : 3  |  Issue : 1  |  Page : 164

Effect of pre-emptive magnesium sulfate infusion on the post-operative pain relief after elective cesarean section

1 Departments of Obstetrics and Gynecology, School of Medicine and Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
2 Department of Anesthesiology, Isfahan University of Medical Sciences, Isfahan, Iran
3 School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Correspondence Address:
Khosrou Naghibi
Alzahra University Hospital, Isfahan University of Medical Sciences, Isfahan
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2277-9175.139127

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Background: The aim of this study was to evaluate the analgesic efficacy of pre-operative single dose of intravenous (I.V.) magnesium sulfate infusion in patients undergoing elective Cesarean section. Materials and Methods: Seventy pregnant women who underwent elective Cesarean section were randomly divided into two groups. Before induction of anesthesia, the magnesium group (Group A) received magnesium sulfate 50 mg/kg I.V. in bolus dose. The control group (Group B) received the same volume of isotonic saline. The pain scores at rest and also upon movement were evaluated up to 24 h post-operatively and analgesic requirement was recorded during the first 24 h after operation. Results: Cumulative analgesic consumption (24 h after operation was 11.2 ± 6.3 mg in group A vs. 13.9 ± 3.9 mg in group B). Post-operative pain scores (24 h after operation was 1.8 ± 2.1 in group A vs. 2.9 ± 1.2 in group B) and shivering incidents (8.57 in group A vs. 14.28 in group B) were significantly lower in Group A (P < 0.05). Mean arterial pressure just after intubation and during the immediate post-operative period was significantly lower in Group A (P < 0.05). Conclusion: Pre-operative intravenous magnesium sulfate infusion decrease post-operation pain and requirement of analgesia in Cesarean section.

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