تاثير دگزامتازون تزريقي قبل از آدنوتانسيلكتومي بر درد بعد از عمل جراحي

The Effect of Dexamethasone Injection before Adenotonsillectomy on the Pain of after Surgery

Adentonsillectomy is the most common surgery in childhood and pain is one of the problems after surgery, so the ability of eating and drinking reduced. The aim of this research was the effect of Dexamethasone injection before Adenotonsillectomy on the pain after the surgery. This research was done in the form of randomized clinical trial and double blind. 46 patients that had indication for Adenotonsillectomy selected and divided in to two groups. One group 30 minutes before surgery I.V injected distilled water and in another group injected .115mg/kg Dexamethasone. The questionnaire was completed in three sections, cause and indication of surgery, symptoms and pain after surgery and during the first 24 hours after surgery and follow up of patients during 7-10 days after surgery. The pain in the first 24 hours after surgery was recorded with scale of VAS (visual analog scale) in three times (8, 16 and 24 hours after surgery), and the mean of them was recorded us the pain value in the first 24 hours. For statistical analysis we used the T-Test and K2 and SPSS software. The 47.8% patients had mild pain, 36.9% had moderate pain and 15/2% had sever pain. In Dexamethasone group 65.2% had mild pain, 26% had moderate pain and 8.6% had sever pain. In control group 30.4% had mild pain, 47.8% had moderate pain and 21.7% had sever pain. There was meaningful statistical difference between 2 groups in symptoms such as nausea, vomiting and appetite but there was not any difference in fever and trismus and the need for acetaminophen. This research showed that there was a meaningful relation between pain after surgery and the Dexamethasone injection in 2 groups of patients (p=01007) and the injection of Dexamethasone before surgery caused pain reduction.