• J Clin Anesth · Nov 2016

    Randomized Controlled Trial Comparative Study

    Magnesium sulfate or diltiazem as adjuvants to total intravenous anesthesia to reduce blood loss in functional endoscopic sinus surgery.

    • Ajisha Aravindan, Rajeshwari Subramanium, Anjolie Chhabra, Priyankar K Datta, Vimi Rewari, Suresh C Sharma, and Rakesh Kumar.
    • AIIMS, New Delhi, India. Electronic address: ajishaa@gmail.com.
    • J Clin Anesth. 2016 Nov 1; 34: 179-85.

    Study ObjectiveThis study was designed to know whether addition of magnesium sulfate (MgSO4) or diltiazem to total intravenous anesthesia (TIVA) (propofol) aided reduction in blood loss during functional endoscopic sinus surgery (FESS). The secondary outcomes measured were surgeon's assessment of the surgical field and hemodynamics.DesignRandomized, double-blinded, placebo-controlled trial.SettingOperating room.PatientsForty-five American Society of Anesthesiologists I and II adult patients (18-60years) undergoing FESS.InterventionsAll groups received propofol-fentanyl TIVA. Patients were randomly allocated to 1 of the 3 groups (MgSO4 group, n=15; diltiazem group, n=15; saline group, n=15).MeasurementsIntraoperative bleeding was quantified, and quality of surgical field was graded. Hemodynamic parameters were recorded.Main ResultsAddition of both MgSO4 and diltiazem significantly reduced blood loss (240 and 350mL) in comparison to control group (415mL) (P=.003). The surgical field was significantly better in the MgSO4 group compared with the diltiazem (P=.028) and saline groups (P=.0001).ConclusionIt was concluded that the addition of both MgSO4 and diltiazem to TIVA propofol results in significant reduction in blood loss and significant improvement in the quality of surgical field during FESS without causing any adverse effects on the hemodynamics or on the recovery from anesthesia. The surgical field in the MgSO4 group was significantly better than that in the diltiazem group (P=.04).Copyright © 2016 Elsevier Inc. All rights reserved.

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