The purpose of this randomized controlled study is to compare the postoperative analgesic effect of a continuous wound infusion of local anesthetics and a sole transverse abdominal plan (TAP) regional block in the surgery of Abdominoplasty Combined With Flank Liposuction. Local anesthetics products used are ropivacaine combined with clonidine. Similar amount of local anesthetics and clonidine are used.

Brief Title

Analgesic Effect Between TAP Block and Continuous Wound Infusion in Abdominoplasty Surgery

Official Title

Comparative Analgesic Effect Between Continuous Wound Infusion and Transverse Abdominal Plan Block for Abdominoplasty Surgery

Brief Summary

The purpose of this randomized controlled study is to compare the postoperative analgesic <br /> effect of a continuous wound infusion of local anesthetics and a sole transverse abdominal <br /> plan (TAP) regional block in the surgery of Abdominoplasty Combined With Flank Liposuction. <br /> Local anesthetics products used are ropivacaine combined with clonidine. Similar amount of <br /> local anesthetics and clonidine are used.

Detailed Description

In a first group, patients receive, after induction of anaesthesia and before surgery, a TAP
block (transverse abdominal plan block) with 3mg/kg Ropivacaine 0.5% (maximum 200 mg) and 150
microg Clonidine.

In a second group, before skin closure, a multiholes catheter was inserted beyond the skin.
20 mg Ropivacaine 0.2% added with 150 microg Clonidine was injected as bolus dose through
this catheter followed by a continuous infusion of Ropivacaine 0.2% 10ml per hour during the
following 9 hours (total dose of 200 mgr).

Outcome Measures

Outcome measures are the tests that investigators perform to prove whether or not a treatment being tested in a clinical trial is having any effect.