Abstract

Aim: To search the effectiveness of obturator nerve block in preventing adductor contractions and related complications during transurethral resection of tumours located in lateral bladder wall. Material and Method: 158 patients who underwent TUR-BT(Bladder Tumor) operation, between April and December 2010 were enrolled the study. Eighty-two of these patients with lateral wall tumours of bladder defined in preoperative ultrasonography were evaluated. Forty patients who underwent bladder tumour resection with only spinal anesthesia (Group I) and 32 patients, spinal anesthesia followed by obturator nerve block (Group II) were evaluated retrospectively regarding to adductor muscle contraction, bladder perforation and necessity of general anesthesia. Findings: No statistically significant difference was found when two groups compared regarding age, gender, height, weight, ASA risk and duration of surgery (p>0,05). Adductor muscle contraction (p=0,001) and bladder perforation (p=0,012) were encountered significantly higher in Group I with comparing to Group II and there was no difference between two groups considering the necessity of general anaesthesia (p=0,124). Conclusion: Obturator nerve block performed after spinal anesthesia is an effective method for preventing complications due to adductor contraction while performing TUR-BT operations especially tumours located on the lateral wall of the bladder.