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British Journal of Anaesthesia, 1995, Vol. 74, No. 5 612-613
© 1995 The Board of Management and Trustees of the British Journal of Anaesthesia

other

Intra-vas deferens bupivacaine for prevention of acute pain and chronic discomfort after vasectomy

L. D. PAXTON, FFARCSI, B. K. HUSS, FRCA, V. LOUGHLIN, FRCS and R. K. MIRAKHUR, MD, FRCA

Department of Anaesthetics, the Queen's University of Belfast Whitla Medical Building, 97 Lisburn Road, Belfast BT9 7BL
Department of Anaesthetics the Lagan Valley Hospital Old Hilisborough Road, Lisburn
Department of of Surgery the Lagan Valley Hospital Old Hilisborough Road, Lisburn

Correspondence to R. K. M.

We have studied the use of intra-vas deferens local anaesthesia in 70 patients undergoing vasectomy as day-case patients. Patients were allocated randomly to either a control or treatment group. In the treatment group, 0.5% bupivacaine 1 ml or 0.9% saline 1 ml was injected into the lumen of the right or left vas deferens in a randomized blinded design. The control group did not receive an injection. Patients were discharged with a questionnaire for recording visual analogue scores (VAS) for both the right and left sides to be scored on days 1 and 7 after operation. One year after the procedure a second questionnaire was sent out asking about the presence or absence of chronic testicular discomfort, its duration and any surgical intervention required to relieve it. There were no differences between the control group and the saline side of the treatment group in VAS scores on both day 1 and day 7 after operation or in the incidence and duration of chronic testicular discomfort (mean 30 (SD 53) and 34 (50) days, respectively). The VAS scores were, however, significantly less (P < 0.005) and testicular discomfort was absent on the bupivacaine-treated side. (Br. J. Anaesth. 1995; 74: 612–613)


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