Addition of dexmedetomidine to bupivacaine for greater palatine nerve block prolongs postoperative analgesia after cleft palate repair

European Journal of Anaesthesiology
Gihan M ObayahMossad Abdelazees

Abstract

The effect of dexmedetomidine on the duration of sensory blockade has not been studied in humans. We evaluated the effect of adding dexmedetomidine to bupivacaine on the duration of postoperative analgesia in children who underwent repair of a cleft palate. Thirty children who were scheduled for repair of a complete cleft palate using a combination of general anaesthesia and greater palatine nerve block were allocated randomly into one of two equal groups (n = 15). In both groups, the greater palatine nerve block was performed bilaterally using 0.5 ml of solution on each side. The B group received bupivacaine 0.25%, whereas the BD group received bupivacaine 0.25% with 1 microg kg(-1) dexmedetomidine. Heart rate, systolic blood pressure, pain score, the time to the first request for analgesia, and the degree of sedation were recorded. There was no difference in haemodynamic variables between the two groups. The pain score was significantly higher in the B group as compared with the BD group. The time to the first request for analgesia was significantly longer in children in the BD group (mean 22 h, range 20.6-23.7 h) as compared with those who received bupivacaine alone (14.2 h, 13-15 h). Sedation scores in the postoperative per...Continue Reading

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