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CompletedNCT01667848Updated Oct 5, 2023Results posted

Warmed, Humidified Carbon Dioxide Insufflation vs Standard Carbon Dioxide in Laparoscopic Cholecystectomy

An interventional study of Optitherm® device activated and Optitherm® device inactivated in Cholecystolithiasis, sponsored by Kepler University Hospital. Completed at 1 site in Austria. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-10-05.

Sponsored by Kepler University Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
148
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

The purpose of this study is to determine the effect of warmed, humidified carbon dioxide Insufflation vs standard carbon dioxide in laparoscopic cholecystectomy.

Read the detailed description

Patients undergoing warmed, humidified carbon dioxide (CO2) insufflation for laparoscopic cholecystectomy will have less postoperative pain than patients undergoing laparoscopic cholecystectomy with standard CO2 insufflation. The study design is a double-blind, prospective, randomized study comparing patients undergoing laparoscopic cholecystectomy with standard CO2 insufflation vs those receiving warmed, humidified CO2. Main variables included postoperative pain (rated with a visual analog scales) and analgesic requirements.

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Conditions studied

  • Cholecystolithiasis

Keywords

  • pain
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In context

Cholecystolithiasis

242 studies on the registry are indexed under Cholecystolithiasis; 26 are open to participants now.

This study's enrollment of 148 is above the median of 100 across 163 interventional studies indexed under Cholecystolithiasis.

Browse Cholecystolithiasis studies →

Lead sponsor

Kepler University Hospital is the lead sponsor of 32 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Clinical diagnosis of cholecystolithiasis

Exclusion criteria

Exclusion Criteria:

  • Clinical diagnosis of cholecystolithiasis with cholecystitis
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
148 participants (actual)

Study arms

  • Experimental
    group B: Insufflation with warm gas

    Insufflation with warmed, humidified carbon dioxide insufflation during laparoscopic cholecystectomy using the optitherm® device attached to the insufflation equipment in all of the patients but was only activated by the single scrub nurse in those patients randomized to group B.

    Device: Optitherm® device activated

  • Experimental
    group A: Insufflation with cold gas

    group A: Insufflation with cold gas during laparoscopic cholecystectomy, the use of Optitherm® device, which was attached to the insufflation equipment in all of the patients but was inactivated in group A

    Device: Optitherm® device inactivated

Interventions

  • DeviceOptitherm® device activated

    The use of Optitherm® device, which was attached to the insufflation equipment in all of the patients but was only activated by the single scrub nurse in those patients randomized to group B.

    Also known as: Optitherm® device (Storz, Tuttlingen, Germany)

  • DeviceOptitherm® device inactivated

    The use of Optitherm® device, which was attached to the insufflation equipment in all of the patients but was inactivated in group A.

    Also known as: Optitherm® device (Storz, Tuttlingen, Germany)

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What researchers measure

Primary outcomes

  1. Pain (Rated With a Visual Analog Scale for Pain)

    postoperative pain (rated with a visual analog scale for pain) and analgesic requirements at operation day. The visual analog scale for pain ranged from 0-10 (0 is no pain, 10 is Maximum of pain)

    Time frame: operation day

  2. Pain (Rated With a Visual Analog Scale for Pain)

    postoperative pain (rated with a visual analog scale for pain) and analgesic requirements at operation day. The visual analog scale for pain ranged from 0-10 (0 is no pain, 10 is Maximum of pain)

    Time frame: first postoperative day

Secondary outcomes

  1. Core Temperature

    Time frame: one day postoperativly

  2. Core Temperature

    core temperature during laparoscopic cholecystectomy using a rectal probe

    Time frame: during operation

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Results

Posted Apr 30, 2014

Participant flow

Approval from the local institutional ethics committee was obtained on June 2011. Between July 1st, 2011 and December 28nd, 2013, a total of 148 patients were scheduled for laparoscopic cholecystectomy at the General Hospital in Linz, Austria

Participant flow — Overall Study
MilestoneGroup A: Insufflation With Cold GasGroup B: Insufflation With Warm Gas
Started6781
Completed6781
Not completed00

Outcome measures

PrimaryPain (Rated With a Visual Analog Scale for Pain)

postoperative pain (rated with a visual analog scale for pain) and analgesic requirements at operation day. The visual analog scale for pain ranged from 0-10 (0 is no pain, 10 is Maximum of pain)

Time frame:
operation day

Results for this outcome have not been posted.

SecondaryCore Temperature
Time frame:
one day postoperativly

Results for this outcome have not been posted.

PrimaryPain (Rated With a Visual Analog Scale for Pain)

postoperative pain (rated with a visual analog scale for pain) and analgesic requirements at operation day. The visual analog scale for pain ranged from 0-10 (0 is no pain, 10 is Maximum of pain)

Time frame:
first postoperative day
Reported as:
Mean · units on a scale 0-10
Pain (Rated With a Visual Analog Scale for Pain)
units on a scale 0-10Group A: Insufflation With Cold GasGroup B
Pain (Rated With a Visual Analog Scale for Pain)2.22 ± 0.971.92 ± 0.84
SecondaryCore Temperature

core temperature during laparoscopic cholecystectomy using a rectal probe

Time frame:
during operation
Reported as:
Mean · degree celsius
Core Temperature
degree celsiusGroup A: Insufflation With Cold GasGroup B
Core Temperature36.85 ± 0.4637.07 ± 0.35

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Group A—0/67 (0%)0/67 (0%)
Group B—0/81 (0%)0/81 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Group A: Insufflation With Cold GasGroup BTotal
Mean55.87 ± 14.4455.68 ± 16.9355.7 ± 15.14
Sex: Female, Male
Sex: Female, Male(Participants)Group A: Insufflation With Cold GasGroup BTotal
Female4657103
Male212445
Region of Enrollment
Region of Enrollment(participants)Group A: Insufflation With Cold GasGroup BTotal
Austria6781148
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Study locations

1 site
  • 2nd Surgical Department, Academic Teaching Hospital, AKH Linz
    Linz, Upper Austria 4020, Austria
09

References and documents

Publications

  • Farley DR, Greenlee SM, Larson DR, Harrington JR. Double-blind, prospective, randomized study of warmed, humidified carbon dioxide insufflation vs standard carbon dioxide for patients undergoing laparoscopic cholecystectomy. Arch Surg. 2004 Jul;139(7):739-43; discussion 743-4. doi: 10.1001/archsurg.139.7.739. PubMed 15249406 ↗
  • Sammour T, Kahokehr A, Hill AG. Meta-analysis of the effect of warm humidified insufflation on pain after laparoscopy. Br J Surg. 2008 Aug;95(8):950-6. doi: 10.1002/bjs.6304. PubMed 18618870 ↗
  • Yu TC, Hamill JK, Liley A, Hill AG. Warm, humidified carbon dioxide gas insufflation for laparoscopic appendicectomy in children: a double-blinded randomized controlled trial. Ann Surg. 2013 Jan;257(1):44-53. doi: 10.1097/SLA.0b013e31825f0721. PubMed 22824858 ↗
  • Nguyen NT, Furdui G, Fleming NW, Lee SJ, Goldman CD, Singh A, Wolfe BM. Effect of heated and humidified carbon dioxide gas on core temperature and postoperative pain: a randomized trial. Surg Endosc. 2002 Jul;16(7):1050-4. doi: 10.1007/s00464-001-8237-0. Epub 2002 Mar 26. PubMed 12165821 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 5, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01667848
Lead sponsor
Kepler University Hospital
Responsible party
Klugsberger Bettina (Dr.med, Ludwig Boltzmann Institute for Operative Laparoscopy) — Principal investigator
First posted
Aug 17, 2012
Start date
Jul 2011
Primary completion
Jul 2013
Completion
Sep 2013
Results posted
Apr 30, 2014
Last update
Oct 5, 2023

Study contacts

Andreas Shamiyeh, Univ-Doz Dr
study chair · Ludwig Boltzmann Institute for Operative Laparoscopy, 2nd Surgical Department, Academic Teaching Hospital, AKH Linz

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Oct 2023. You cannot join it, but the record below documents what was studied.

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