Multimodal Analgesia Effect on Post Surgical Patient

  • End date
    Dec 31, 2025
  • participants needed
  • sponsor
    University of California, Davis
Updated on 10 April 2022


Patients undergoing Bariatric Surgery at the University of California Davis Medical Center will be divided into two groups, one receiving Standard of Care pain control medications vs the second group which will receive non-narcotic pain medications with rescue pain medications available if needed


Pain control after weight loss surgery is challenging due to the alteration of digestive system anatomy and limitation on using medications which can either be crushed or in liquid form for the first 10 days to 14 days after surgery. Additionally there are multiple programs in place to eliminate the use of narcotic/opioid based pain medications due their potential addictive risks.

This study compares two groups of patients whom will have Roux en Y Gastric Bypass Surgery at UC Davis Medical Center, the control group will receive standard of care pain control medications (including opioid based medications) compared to the research arm, this group will receive Gabapentinin and Tylenol for pain control after surgery with rescue pain medications available if needed.

Post surgery both groups will be managed by the Bariatric Surgery Team and will be contacted periodically as part of the standard of care to monitor pain control and usage of any rescue medications (if needed).

Condition Obesity, Morbid, Surgery, Bariatric Surgery Candidate
Treatment Oxycodone Hydrochloride, scopolamine patch, Neurontin, Neurontin, Dilaudid Injectable Product, Dilaudid Injectable Product, Marcaine Injectable Product, Hycet 7.5Mg-325Mg/15Ml Solution, Zofran Injection, Ativan, Ativan, Flexeril Oral Product, Tylenol Suspension
Clinical Study IdentifierNCT04240626
SponsorUniversity of California, Davis
Last Modified on10 April 2022


Yes No Not Sure

Inclusion Criteria

Women who undergo index weight loss procedures at UC Davis Medical Center
Women with a BMI =>30
Age from 35-65
American Society of Anesthesiology (ASA) score of 3 or less
No previous history of prior abdominal/foregut surgery

Exclusion Criteria

Not having an index weight los surgery for obesity
Do not meet the NIH Standards for weight loss surgery
Additional planned or unplanned procedures during the index surgical procedure such as Cholecystectomy or extensive lysis of adhesions (>30 minutes)
BMI < 30
Women considering or currently planning on gender altering/modification
ASA score of 4 or higher
Patients less than 35 years of age or older than 65 years of age at the time of surgical consent
A history of open abdominal surgery including umbilical, ventral, or splengalic hernia repair with or without mesh implantation, transplant or vascular surgery or any foregut procedures including hiatal hernia repair or anti-reflux surgery
Arthritis, Fibromyalgia, chronic pain syndrome
Other conditions requiring daily use of oral pain medications
Allergy to Gabapentin
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