The Effect of Pre-Operative Transversus Abdominis Plane (TAP) Block in the Post Operative Opioid Consumption in Morbid Obese Patients Undergoing Laparoscopic Gastric Bypass Surgery: A Prospective,Randomized, Blinded Study

Northwestern University

Status: Completed

Conditions: Surgery; Obesity; Pain

Treatments: Drug: (study group) will receive a bilateral TAP block using 20 cc of 0.5% ropivacaine on each side.; Drug: Placebo

Study type: Interventional

Funder types: Other

Identifiers

NCT01075087

STU00023482

Details and patient eligibility

About

The use of preoperative TAP block in laparoscopic bariatric surgery can improve the postoperative pain and quality of recovery in patients undergoing these procedures.

Enrollment: 19 patients

Sex: All

Ages: 18 to 65 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age: 18-65 years
• BMI >35 Kg/m2
• Surgery: laparoscopic gastric bypass surgery
• ASA status: I, II and III
• Fluent in English

Exclusion criteria

• History of allergy to local anesthetics
• Chronic opioid use
• Pregnant patients
• Patients who remained intubated after surgery

Drop-out criteria:

Patient or surgeon request Complications related to the procedure or conversion to open route Patient requiring mechanical ventilation after surgery

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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19 participants in 2 patient groups, including a placebo group

Placebo

Placebo Comparator group

Description:

(control group) will receive sterile normal saline in the block

Treatment:

Drug: Placebo

Active comparator

Active Comparator group

Description:

(study group) will receive a bilateral TAP block using 20 cc of 0.5% ropivacaine on each side.

Treatment:

Drug: (study group) will receive a bilateral TAP block using 20 cc of 0.5% ropivacaine on each side.