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Δευτέρα 6 Φεβρουαρίου 2017

Intravenous lidocaine for effective pain relief after bimaxillary surgery

Abstract

Objectives

The aim of this prospective, randomized, double-blind, placebo-controlled study was to evaluate the analgesic effect of intravenous lidocaine on postoperative pain in bimaxillary surgery.

Materials and methods

Between July 2015 and November 2015, 52 consecutive patients that underwent bimaxillary surgery were recruited to the present study. The patients were randomly divided into two groups: group L (1.5 mg/kg bolus and 2 mg/kg/h continuous infusion during the operation) and group C (normal saline). To measure pain intensity, a visual analog scale (VAS) was used at 2, 4, 8, 12, 24, and 48 h after surgery. Rescue ketorolac use was measured in the first 4, 4–8, 8–24, and 24–48 h after surgery. Total ketorolac consumption (the sum of rescue and eight-hourly fixed schedule ketorolac injection), WBC count, neutrophil count, and postoperative swelling were recorded.

Results

There were no significant differences between the two groups with respect to demographics. VAS pain scores were significantly lower in group L compared with group C up to 8 h after surgery. Rescue ketorolac use up to 8 h after surgery and total ketorolac consumption were significantly lower in group L than in group C. Postoperative WBC and neutrophil counts were significantly decreased in group L. Compared with group C, the amount of calibrated postoperative swelling was lower in group L.

Conclusions

Systemic lidocaine infusion during bimaxillary surgery reduces postoperative pain, analgesic consumption, and facial swelling.

Clinical relevance

Systemic lidocaine is simple, economic, and a safe procedure reducing pain and soft tissue swelling after bimaxillary surgery.



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