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Laparoscopic Revision Gastric Bypass for Inadequate Initial Weight Loss (IIWL)

This study has been completed.
Information provided by:
University of California, San Francisco Identifier:
First received: December 23, 2009
Last updated: December 28, 2009
Last verified: October 2009
The main aim of this study is to analyze and report traditional, patient-centered, and composite intermediate-term outcomes after laparoscopic revision Roux-en-Y gastric bypass surgery for inadequate initial weight loss.

Inadequate Initial Weight Loss
Persistent Clinically Severe Obesity

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Retrospective
Official Title: Laparoscopic Revision Gastric Bypass for Inadequate Initial Weight Loss After Gastric Bypass: Intermediate Results

Resource links provided by NLM:

Further study details as provided by University of California, San Francisco:

Primary Outcome Measures:
  • Weight loss expressed as Body Mass Index and Percentage excess weight loss [ Time Frame: at the lowest weight loss point and at last follow-up ]
  • Comorbidity status [ Time Frame: throughout follow-up ]
  • Health-related Quality of Life (HR-QoL) [ Time Frame: at last follow-up ]
  • Subjective satisfaction [ Time Frame: at the last follow-up ]
  • Morbidity and mortality [ Time Frame: throughout follow-up ]

Secondary Outcome Measures:
  • Failure/success rate [ Time Frame: at yearly intervals throughout follow-up ]
  • Metabolic and nutritional variables [ Time Frame: throughout follow-up ]

Enrollment: 42
Study Start Date: October 2009
Study Completion Date: December 2009
Primary Completion Date: December 2009 (Final data collection date for primary outcome measure)
Inadequate initial weight loss after gastric bypass

Detailed Description:
There is lack of standardization of primary and revisional bariatric surgery compounded by a scant long-term outcome data. The treatment of inadequate weight loss, weight recidivism, and most severe technical complications after primary bariatric surgery remains refractory to non-operative treatment. Failure rates have been reported up to 20% and 35% for the morbidly obese (MO) and super obese (SO), respectively at 2 to 3 years after surgery. The indication for further surgical intervention remains controversial, as does what type of revisional procedure, both operative and endoscopic, to recommend. Furthermore, there is no standardization of the limb lengths, pouch size or the use of prosthetic reinforcement. Therefore the approach to these patients must be as individualized as their original operations. We formally analyze our experience with all laparoscopic revisional strategies for Inadequate Initial Weight Loss after failed Roux-en-Y gastric bypass(RYGB).

Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients that underwent laparoscopic revision gastric bypass after previously failed Roux-en-Y gastric bypass "RYGB" with an Inadequate initial weight loss "IIWL" pattern.

Inclusion Criteria:

  • laparoscopic revisional RYGB for failed RYGB with IIWL or non-responders pattern

Exclusion Criteria:

  • failed RYGB with a WR pattern
  • patients with prior major bariatric conversion or esophago-gastric surgeries
  • RYGB patients revised by an open surgical approach
  • RYGB patients who underwent laparoscopic revisional RYGB surgery somewhere else and continue their follow-up care with program
  • missing records and/or unreachable patients with scan information for analysis
  Contacts and Locations
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Please refer to this study by its identifier: NCT01040377

United States, California
UCSF Fresno Center for Medical Education and Research
Fresno, California, United States, 93701
Sponsors and Collaborators
University of California, San Francisco
Study Director: Francisco M Tercero, MD Research Associate, University of California San Franisco
Principal Investigator: Kelvin D Higa, MD Professor of Surgery, University of California San Francisco
  More Information

Additional Information:
Publications: American Society of Metabolic and Bariatric Surgery.
Mouiel J, Bourg S, Iannelli A, et al. Nouvelle technique de gastroplatie verticale calibree type Mason-MacLean avec cure de reflux gastro-oesophagien. Jornal de Coelio Chirurgie 2001;38: 53-6.
Majani G, Pierobon A, Giardini A, et al. Satisfaction Profile (SAT-P) in 732 patients: focus on subjectivity in HRQoL assessment. Psychol Health 2000; 15: 409-22.

Responsible Party: Kelvin D. Higa, MD; FACS; FASMBS; Clinical Professor of Surgery, University of California San Francisco, UCSF Fresno / ALSA Medical Group, Inc. Minimally Invasive Surgery Program Identifier: NCT01040377     History of Changes
Other Study ID Numbers: CMC IRB No. 2009077
U1111-1113-0264 ( Other Identifier: World Health Organization, Universal Trial Number )
Study First Received: December 23, 2009
Last Updated: December 28, 2009

Keywords provided by University of California, San Francisco:
Inadequate Initial Weight Loss
Inadequate weight loss
Poor weight loss
Failed gastric bypass
Revision gastric bypass

Additional relevant MeSH terms:
Body Weight
Weight Loss
Obesity, Morbid
Signs and Symptoms
Body Weight Changes
Nutrition Disorders
Overweight processed this record on April 26, 2017