A Comparative Study to Determine the Effect of Intravenous Magnesium on Postoperative Bleeding After on Pump CABG in Patients Receiving Pre-Operative Aspirin

Overview

Journal Indian J Anaesth

Specialty Anesthesiology

Date 2010 Jul 20

PMID 20640123

Citations 1

Authors

Sampa Dutta Gupta

Soumendu Pal

Anupam Goswami

Sandip Bhadra

Sripurna Mandal

Chandashi Naskar

Sudakshina Mukherjee

Debasish Boral

Affiliations

Soon will be listed here.

Abstract

Hypomagnesaemia is a common complication after cardiopulmonary bypass (CPB) and predisposes to the development of cardiac arrhythmias. Previous studies showed that intravenous magnesium reduces the incidence of postoperative cardiac arrhythmias but it also inhibits platelet function. Our aim was to compare the postoperative blood loss in patients not receiving magnesium after CPB with the group who received magnesium and to compare the requirement of blood, fresh frozen plasma (FFP) and platelets within 24 hours after surgery. This prospective randomized controlled study was conducted in 80 adult patients on oral aspirin undergoing elective CABG requiring CPB. Group A patients had not received magnesium infusion after recovery from CPB. Group B patients received magnesium infusion after recovery from CPB. Postoperative bleeding was assessed in both the groups. All the data were statistically analyzed. There was a insignificant increase in 24 hours postoperative drainage in magnesium recipient group compared to control group (p>0.05). Requirements of blood and blood products to maintain haematocrit and coagulation profile revealed insignificant (p > 0.05). Increase in requirement of PRC, FFP and platelets in magnesium recipient patients than the control group. Incidence of atrial fibrillation (Gr A 2.5%, Gr B 2.5%) and atrial extrasystoles (Gr A 2.5%, Gr B 10%) revealed comparable (p > 0.05) between the groups, but incidence of ventricular arrhythmias were significantly (p<0.05) high in the patients of Gr A(17.5%) than Gr B(5%). To conclude, magnesium may be administered to patients who continue pre-operative aspirin to undergo on-pump CABG surgery.

Citing Articles

The effect of intravenous magnesium sulfate on serum levels of N-terminal pro-brain natriuretic peptide (NT pro-BNP) in elective CABG with cardiopulmonary bypass.

Dabbagh A, Bastanifar E, Foroughi M, Rajaei S, Keramatinia A J Anesth. 2013; 27(5):693-8.

PMID: 23645158 DOI: 10.1007/s00540-013-1610-z.

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