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Clinical trial

Perioperative Systemic Lidocaine for Enhanced Bowel Recovery After Bariatric Surgery

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Last updated:1st Nov 2015

Increasing rates of obesity over the last few decades have led to growing demand for bariatric surgery, which may resulted in decreased comorbidities and improved patient outcomes. Laparoscopic bariatric surgery has several clinical benefits in terms of improved quality of analgesia, reduced pulmonary complications, enhanced recovery of bowel function, less immune suppression, and shortened duration of hospital stay than open laparotomies.

Some investigators reported delayed return of bowel function for approximately two days after laparoscopic bariatric surgery, despite it occurred one day earlier than after open laparotomy. This potentially can lengthen the duration of hospital stay after bariatric procedures. With the impeding cost of health care in the developing countries, safely reducing length of stay is essential.

Other investigators reported early return of bowel movements during the first postoperative day in 65% of patients undergoing laparoscopic gastric bypass surgery due to reduced morphine use with implementation of a multimodal analgesia strategy including ketorolac, and propoxyphene hydrochloride/acetaminophen.

Lidocaine was investigated in several studies for its use in multi-modal management strategies to reduce postoperative pain and opioid use and enhance recovery. A recent Cochrane review including 45 trials demonstrated that systemic administration of lidocaine was associated with reduced pain scores at most of 'early time points' in patients undergoing laparoscopic abdominal surgery (MD -1.14, 95% CI -1.51 to -0.78; low-quality evidence), shorter times to first flatus (MD -5.49 hours, 95% CI -7.97 to -3.00; low-quality evidence) and first bowel movement (MD -6.12 hours, 95% CI -7.36 to -4.89; low-quality evidence), and less risk of paralytic ileus (risk ratio (RR) 0.38, 95% CI 0.15 to 0.99; low-quality evidence). However, no evidence of effect was found for lidocaine on shortening the time to first defecation. This low-quality evidence may be related to the heterogeneity between the studies in respect to the optimal dose, timing and duration of the administration of intravenous lidocaine.


Study Type: Interventional
Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: Perioperative Systemic Lidocaine for Enhanced Bowel Recovery After Laparoscopic Bariatric Surgery: A Dose Dependent Study
Estimated Enrollment: 180
Study Start Date: November 2015
Estimated Study Completion Date: February 2017
Estimated Primary Completion Date: December 2016 (Final data collection date for primary outcome measure)

Arms:
- Placebo Comparator:
Placebo
- Active Comparator: Lidocaine 1%
- Active Comparator: Lidocaine 1.5%
- Active Comparator: Lidocaine 2%

Category Value
Study start date 2015-11-01

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