Clinical Evaluation Of Glossopharyngeal Nerve Block For Preemptive Analgesia After Tonsillectomy

摘要

In the present study evaluation of the efficacy of glossopharyngeal nerve block (GNB) was done for the control of post-tonsillectomy pain in 50 patients equally divided into two groups (n=25 each), group B bupivacaine group received bilateral GNB with 0.25% bupivacaine 5ml and group C control group received no intervention . To evaluate the effects of GNB, we assessed throat pain (0-10 cm visual analog scale), in the immediate postoperative period, pain scores at rest and when swallowing. Introduction Postoperative pain is the principal cause of morbidity after tonsillectomy. This pain can affect the patient’s nutrition, ability to return to work or school, discharge from the hospital, and overall satisfaction with the procedure. Tonsillectomy produces severe pain on the first postoperative day1 . Several techniques have been described for the alleviation of this pain, including the use of opioid, steroids and non steroidal anti inflammatory drugs 1, as well as local anesthetic sprays and infiltration with local anesthetics around the tonsillar bed 1. There is some controversy regarding the efficacy of glossopharyngeal nerve block (GNB) for the control of immediate posttonsillectomy pain. Methods After obtaining written informed consent from each patient, 50 ASA 1–2 physical status adult patients scheduled for tonsillectomy under general anesthesia were recruited into this study (Table 1). Exclusion criteria included diabetes, cardiac conduction anomalies, bleeding disorders or coagulation disorders, liver or kidney disease, hypersensitivity to local anesthetics, chronic pain, regular analgesic use within1 wk of surgery, peritonsillar abscess or swallowing disorder.