Laparoscopic Transversus Abdominis Plane (TAP) Block to Reduce Post-operative Opioids

Inclusion Criteria: * gastric bypass \& sleeve gastrectomy, duodenal switch and minimally invasive elective anti-reflux foregut surgeries such as - hiatal hernia repair, fundoplication and Heller myotomy. Exclusion Criteria: * Subjects who are known to be * Allergic to Bupivacaine * Chronic opioid users Page 4 * Had/have neurological conditions * Have a diagnosis of chronic pain syndrome which requires them to consume regular analgesics \> 3-months * American Society of Anesthesiologists (ASA) Class IV \& V patients with severe systemic disease that is a constant threat to life. * Patients with abdominal drain use * Patients with significant cardiovascular, liver or renal disease * Presence of contraindications for bariatric or foregut surgery. * Patients presenting postoperative complications will be excluded from final analysis \& final data set * History of bariatric or foregut surgery * Patients who are pregnant * Patients who are under the age of 18