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Completed

NCT Number: NCT01887028

Impacts of Intraperitoneal Pressure and CO2 Gas on Surgical Peritoneal Environment

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The primary purpose is to compare the impacts of intraperitoneal pressure (8mmHg versus 12 mmHg) and CO2 gas (cool, dry CO2 gas versus warmed, humidified CO2 gas) on gene expression in peritoneal tissues during laparoscopic surgery. We hypothesize that combined use of a low Intraperitoneal pressure (8mmHg) and warmed, humidified CO2 gas during CO2 pneumoperitoneum may be better in minimizing adverse effects on surgical peritoneal environment and improving clinical outcomes compared to the standard intraperitoneal pressure (12mmHg) and standard cool, dry CO2 gas.

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Key information

Age range

45 year–75 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

CHU Clermont-Ferrand

Clermont-Ferrand, 63003, France

About this study

Patients undergoing laparoscopic hysterectomy with promontofixation are randomized into four groups: Group 1: 12mmHg intraperitoneal pressure with cool, dry CO2 gas (n=20), Group 2: 12mmHg intraperitoneal pressure with warmed, humidified CO2 gas (n=20), Group 3: 8mmHg intraperitoneal pressure with cool, dry CO2 gas (n=20), Group 4: 8mmHg intraperitoneal pressure with warmed, humidified CO2 gas (n=20).

Normal peritoneum is collected from the parietal wall at the beginning of laparoscopic surgery and at 1 and 2 hours. Expression of genes encoding components of the fibrinolytic system, extracellular matrix and adhesion molecules, and inflammatory cytokine signaling molecules in peritoneal tissues are measured by real-time PCR.

Quality of post-operative recovery by QoR-40, post-operative pain by Visual Analog Scale, per or post operative complications and intraoperative core temperature are assessed and compared.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age 45-75 years old
  • Petients undergoing laparoscopic hysterectomy with promontofixation for uterine prolapse
  • Menopaused
  • ASA class I or II

Exclusion criteria

  • Absolute contraindications to laparoscopy
  • Previous history of pelvic surgery, endometriosis and/or infection
  • Pathological peritoneal tissue
  • BMI more than 30
  • Height less than 150cm

Treatment and study plan

Fisher and Paykel Humidifier (MR860AEU)

Device

Humidification to 98% relative humidity, and warming to 37 degrees C of laparoscopic insufflate. This will be done for the duration of the operation

Primary outcomes

  1. Expression of genes encoding components of the fibrinolytic system, extracellular matrix and adhesion molecules, and inflammatory cytokine signalling molecules in peritoneal tissues

    Time frame: at1 hour and 2 hours (day 1)

Secondary outcomes

  1. Quality of post-operative recovery

    Time frame: at day 1

  2. Post-operative pain

    Time frame: at day 1

  3. Per or post operative complications

    Time frame: at day 1

  4. Intraoperative core temperature

    Time frame: at day 1

Sponsors and collaborators

Lead sponsor

University Hospital, Clermont-Ferrand

Other

Registry information

Official study title

A Single-blind, Randomized Study to Compare Impacts of Intraperitoneal Pressure (8mmHg Versus 12 mmHg) and CO2 Gas (Cool, Dry CO2 Gas Versus Warmed; Humidified Co2 Gas) on Surgical Peritoneal Environment During Laparoscopic Surgery

Important dates

Study start
2013
Primary completion
2015
Study completion
2016
First posted
Jun 26, 2013
Registry last updated
Jul 19, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.