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Surgical field infiltration with adrenaline is common practice for quality surgical field during cleft lip and palate repair in children. Intravascular absorption of adrenaline infiltration often leads to adverse haemodynamic responses. In this prospective, double-blinded, randomised study the haemodynamic effects, quality of surgical field and postoperative analgesia following surgical field infiltration with different concentrations of adrenaline with and without lignocaine were compared in 100 American Society of Anesthesiologists physical status I children aged six months to seven years undergoing cleft lip/palate surgery. A standard anaesthesia protocol was used and they were randomised into four groups based on solution for infiltration: adrenaline 1:4 (group A), adrenaline 1:200,000 (group B), lignocaine + adrenaline 1:400,000 (group C) and lignocaine + adrenaline 1:200,000 (group D). Statistically significant tachycardia and hypertension occurred only in group B as compared to other groups (P &lt;0.001). The peak changes in heart rate and mean arterial pressure following infiltration occurred at 4.3±2.4, 3.8±1.5, 5.7±3.2 and 5.9±4.9 minutes in groups A, B, C and D respectively. Surgical field was comparable among all groups. Postoperative pain scores and rescue analgesic requirements were lesser in the groups where lignocaine was added to the infiltrating solution (P &lt;0.05). We found that 1:4 or 1:2 adrenaline with lignocaine 0.5 to 0.7% is most suitable for infiltration in terms of stable haemodynamics, quality of surgical field and good postoperative analgesia in children.

anaethesia and intensive care/anaesthesia and intensive care

Comparison of Haemodynamic Responses following Different Concentrations of Adrenaline with and without Lignocaine for Surgical Field Infiltration during Cleft Lip and Cleft Palate Surgery in Children