European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
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Eur Arch Otorhinolaryngol · Jun 2017
Randomized Controlled Trial Comparative StudyComparing the effects of peritonsillar infiltration of tramadol before and after the surgery on post-tonsillectomy pain.
The aim of the study was to compare the effects of peritonsillar infiltration of tramadol before and after the surgery on post-tonsillectomy pain. In this double-blinded clinical trial study, 80 children aged 5-12 years old with ASA (American Society of Anesthesiologists) class I or II undergoing tonsillectomy involved. In group A (n = 40), after anesthesia induction and before starting the surgery, tramadol 2 mg/kg diluted in normal saline up to 2 cc total volume was injected into the tensile bed by the anesthesiologist using a 25 gauge needle. ⋯ Systolic blood pressures (before surgery, before extubation, and after extubation) were statistically the same in both groups (p < 0.05). Furthermore, systolic blood pressures 10, 15, and 30 min after entry into the recovery room were the same in both groups. We concluded that peritonsillar infiltration of tramadol before surgery controlled postoperative pain better from 8 h after the surgery to hospital discharge (late effect), but that local infiltration of tramadol after surgery controlled postoperative pain better up to 2 h after the operation (early effect).