Trial comparing various methods of liver retraction in Laparoscopic Roux-en-Y Gastric Bypass

ISRCTN ISRCTN29657697
DOI https://doi.org/10.1186/ISRCTN29657697
Secondary identifying numbers EMRP30098N
Submission date
04/11/2011
Registration date
15/11/2011
Last edited
06/11/2012
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Surgery
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Liver retraction is necessary during Laparoscopic Roux-en-Y gastric Bypass (LRYGB) surgery to make sure that the surgeon has enough space and can see what they are doing. Hypertrophic fatty left lobe of the liver in morbidly obese patients makes liver retraction more challenging for surgeons dealing with weight loss surgery (called bariatric surgeons). Traditional liver retractors require another wound for insertion, are bulky and may cause liver injury. This additional wound may also lead to local wound infection, port site hernia and may add to post-operative pain and discomfort. The response of the liver to the retraction also needs to be addressed. This is the aim of this study which compared three methods: the traditional Nathanson liver retractor (Group I), liver suspension tape (Group II), V shaped liver suspension technique called V-LIST (Group III).

Who can participate?
Patients aged 18-65 years, with a BMI > 32 kg/m2 and who have given written informed consent.

What does the study involve?
Participants are randomly allocated to three groups: Nathanson liver retractor (Group I), Liver suspension tape (Group II) and (Group III) on the basis of method of liver retraction used and taken for surgery Laparoscopic Roux-en-Y gastric Bypass (LRYGB).

What are the possible benefits and risks of participating?
The patients in Group II and III may benefit from less liver trauma, fewer trocar wound related complications (a trocar is the device that will be used to provide better access to the abdomen).
The patients may need more operative time in Group II and III.

Where is the study run from?
The study will take place at EDa Hospital, Kaohsiung City (Taiwan)

When is the study starting and how long is it expected to run for?
January 2010 to July 2010.

Who is funding the study?
EDa Hospital, Kaohsiung City (Taiwan)

Who is the main contact?
Professor Chih-Kun Huang
dr.ckhuang@hotmail.com

Contact information

Prof Chih-Kun Huang
Scientific

1 E-Da Road
Jian-Shu Tsuen
Yan-Chau Shiang
Kaohsiung
824
Taiwan

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleA randomised controlled trial comparing various methods of liver retraction in Laparoscopic Roux-en-Y Gastric bypass
Study acronymLRYGB
Study objectivesThe patients may benefit from novel retraction techniques like Liver suspension tape, V-shaped liver suspension technique with less trauma to liver and less scarring.
Ethics approval(s)E-Da Hospital Ethics Committee and Institutional Review Board, Taiwan, 15 January 2010 ref: EMRP30098N
Health condition(s) or problem(s) studiedLaparoscopic roux-en-y gastric bypass for obese patients
InterventionEligible consenting participants (N=60) will be randomised into 3 groups:
Group I: Nathanson Liver Retractor (n=20)
Group II: Liver Suspension Tape (n=20)
Group III: V-LIST (n=20)

Preoperative liver function test (LFT) (SGOT, SGPT, Total Bilirubin)
Preoperative Liver dimensions measurement

Surgery: We recorded gastric pouch time, operative time, time for liver suspension, Operative view score, Difficulty score, Visual analogue scale (VAS) for pain

LFT (SGOT, SGPT, Total Bilirubin):
Immediate Postop, 18 hours, 1 week and 1 month.
Intervention typeProcedure/Surgery
Primary outcome measure1. Liver Function Test (LFT) just before surgery immediately post operation and at 18 hours, 1 week and at 1 month after surgery
2. Intra-operative time for gastric pouch, time taken for liver suspension and total operative time
Secondary outcome measures1. Liver dimensions
2. Difficulty and operative view scores
3. Visual analogue scale) VAS
Measured at post operation after day 1 and day 2
Overall study start date01/01/2010
Completion date31/07/2010

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit65 Years
SexBoth
Target number of participants60, 20 in each group
Key inclusion criteria1. Age 18-65 years
2. Body mass index (BMI) > 32 kg/m2
3. Written informed consent
Key exclusion criteria1. Patients younger than 18 or older than 65 years
2. Unresolved psychiatric illness
3. Substance abuse
4. Liver cirrhosis
Date of first enrolment01/01/2010
Date of final enrolment31/07/2010

Locations

Countries of recruitment

  • Taiwan

Study participating centre

1 E-Da Road
Kaohsiung
824
Taiwan

Sponsor information

E-Da Hospital (Taiwan)
Hospital/treatment centre

No.1, Yida Road
Jiaosu Village
Yanchao District
Kaohsiung
82445
Taiwan

Website http://www.edah-hospital.com/en/index.html
ROR logo "ROR" https://ror.org/00eh7f421

Funders

Funder type

Hospital/treatment centre

E-Da Hospital Kaohsiung (Taiwan)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan