- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01512511
Comparing Nitrous Oxide and Carbon Dioxide for Laparoscopic Cholecystectomy
January 15, 2012 updated by: Mehdi Asgari, Ahvaz Jundishapur University of Medical Sciences
Prospective Randomized Trial Comparing Nitrous Oxide and Carbon Dioxide for Laparoscopic Cholecystectomy
There is no general agreement about the ideal gas for pneumoperitoneum.
CO2, now in common use, has not compared to N2O sufficiently to disclose which one has minimal "physiological" invasiveness characters.
Assigned randomly to carbon dioxide or nitrous oxide group, the hemodynamic and respiratory parameters (heart rate, mean arterial blood pressure, end-tidal CO2, minute ventilation, and O2 saturation) before pneumoperitoneum and during it were recorded.
Pain, as perceived by patients, is measured 2, 4 and 24 hours after the procedure by visual analogue scale.
Vomiting and use of analgesics and antiemetics were recorded and compared.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
64
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
Khuzestan
-
Ahvaz, Khuzestan, Iran, Islamic Republic of
- Ahvaz jundishapur university of medical sciences; Razi Hospital
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
No older than 63 years (Child, Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- developed gallstones
- candidates for laparoscopic cholecystectomy
- written informed consent
- ASA Score = 1&2
Exclusion Criteria:
- signs and complications of gallstones in admission include acute cholecystitis and suppurative cholangitis
- complete Inability to move
- severe physical or mental disorders leading to inability to communicate -Pregnancy and
- cancer
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: nitrous oxide
use nitrous oxide for pneumoperitoneum creation
|
use nitrous oxide for create pneumoperitoneum in laparoscopic cholecystectomy
|
Placebo Comparator: carbon dioxide
use carbon dioxide for pneumoperitoneum creation
|
use nitrous oxide for create pneumoperitoneum in laparoscopic cholecystectomy
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
heart rate
Time Frame: At the start of laparoscopic surgery and Immediately after surgery.
|
number of heartbeats per minute measured in At the start of laparoscopic surgery and Immediately after surgery.
|
At the start of laparoscopic surgery and Immediately after surgery.
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Mean arterial pressure
Time Frame: At the start of laparoscopic surgery and Immediately after surgery.
|
average arterial pressure during a single cardiac cycle At the start of laparoscopic surgery and Immediately after surgery
|
At the start of laparoscopic surgery and Immediately after surgery.
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Principal Investigator: Mehdi Asgari, PhD, Ahvaz Jundishapur University of Medical Sciences
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
November 1, 2010
Primary Completion (Actual)
March 1, 2011
Study Completion (Actual)
April 1, 2011
Study Registration Dates
First Submitted
January 3, 2012
First Submitted That Met QC Criteria
January 15, 2012
First Posted (Estimate)
January 19, 2012
Study Record Updates
Last Update Posted (Estimate)
January 19, 2012
Last Update Submitted That Met QC Criteria
January 15, 2012
Last Verified
January 1, 2012
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- u-89140
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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