Effectiveness of Transverse Abdominus Plane Catheter Blocks to Patient-controlled Analgesia in Laparoscopic Colon Resections

Exclusion Criteria

• •Patients undergoing open procedures.
• •Lap converted to open procedures.
• •Patients with known liver dysfunction, or the following laboratory assays: ALT/AST/alk. Phos/total bilirubin of 2x ULN
• •Cirrhosis Child's class A-C, INR \>1.5. There is no specific isolated value of protein or albumin which would disqualify the subject.
• •All emergent/urgent cases taken to the OR for colon resections.
• •All patients with previous drug abuse/narcotic abuse history.
• •Patients without the mental capacity to consent for the procedure/study.
• •Subjects requiring a translator in order to sign the informed consent.
• •Subjects with a history of an allergic reaction to local anesthetics or acetaminophen.