The University of Texas Health Science Center, Houston
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.
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
Participants will receive warm (37°C) and humidified (95%) CO2.The humidification and warming device to be used is AlwaysPneumo® AP 50/30 InsuflowPort® (Lexion Medical, FDA approved) which is a specialized port that delivers warmed (95° F) and humidified (95% relative humidity) CO2, the source of which is a standard CO2 tank or wall source
Participants will receive standard cold (19-21 °C) and non-humidified (0%) CO2 insufflation with Airseal Insufflator
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