Regarding infusion into the TAP catheter, all patients will receive intermittent boluses of either lidocaine (0.5-1.0%, at the discretion of the anesthesiologist) or placebo into their TAP catheters. For patients with unilateral incisions, a bolus of 20-40 ml will be applied every four to eight hours by our pumps. A KVO rate of 1 ml per hour will run throughout. Should it be necessary to place catheters bilaterally, we will set a second pump for the second catheter. This pump will be set with identical settings, i.e. will deliver 20-40 ml of solution every four to eight hours. Blood will be sampled for plasma lidocaine levels through the already sited intravenous line at 30 minutes postoperatively, as well as immediately before and 30 minutes after one local anesthetic or placebo bolus each day for three days postoperatively. The TAP catheter will be removed after approximately 72 hours on the morning of the third postoperative day.