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Lexion AP 50/30 Warmed Humidified Real Time CO2 Insufflation vs Airseal Recirculated CO2/Air Insufflation in Minimally Invasive Bariatric (Gastric Bypass) Surgery

Lexion AP 50/30 Warmed Humidified Real Time CO2 Insufflation vs Airseal Recirculated CO2/Air Insufflation in Minimally Invasive Bariatric (Gastric Bypass) Surgery: A Randomized Controlled Study of Clinical Evaluation

Who can join

Ages 18 to 65 · All sexes

Inclusion Criteria:

* elective bariatric primary or revision procedures and hiatal hernia repair procedures for all indications.

Exclusion Criteria:

* emergency surgery, reoperation within 30 days
* patients who are taking pain medications (narcotics) daily preoperatively for whatever reason
* history of narcotics addiction
* paraplegic and quadriplegic patients
* dementia or altered mental status
* patients on steroids
* pregnant women
* psychiatric patients
* minors
* unable to give informed consent

About the study

The purpose of this study is to To determine the effect of warm and humidified (WH) carbon dioxide (CO2) on post-operative pain/analgesia requirement in patients undergoing laparoscopic bariatric surgery.

What is being tested

• Warm humidified CO2 (device)
• Dry CO2 (device)

Sponsor: The University of Texas Health Science Center, Houston · Participants: 54 · Started: May 19, 2023

Contact the study team

• Erik B Wilson, MD,FACS · Phone: 713-500-7277
• Angielyn Rivera · Phone: 713-416-1350

Official record on ClinicalTrials.gov — NCT05838300

Locations in the U.S.

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.