Study of Bariatric Surgery

Study Overview
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Brief Summary
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The aim of this cohort study is to collect prospectively clinical data on all the patients admitted in the investigators department for bariatric surgery or for any complication of a bariatric procedure. The investigators goal is not only to improve the follow-up but also to assess and publish the investigators results regarding weight loss and the complication rate.

Official Title
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Prospective Cohort Study Monitoring Patients Undergoing Bariatric Surgery

Conditions
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Bariatric Surgery

Intervention / Treatment
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* Procedure: bariatric surgery


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: History of bariatric surgery procedure Exclusion Criteria: Patients < 16 years Patients > 80 years

Ages Eligible for Study
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Minimum Age: 16 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Procedure: bariatric surgery|gastric bypass Or gastric banding Or Biliopancreatic diversion with duodenal switch Or sleeve gastrectomy Or endoscopic procedure (Endobarrier,…)|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Weight loss in kg |  | Before surgery (Day 0) and After surgery (every year, up to 25 years or loss to follow-up) | 
| Weight loss in kg/m² |  | Before surgery (Day 0) and After surgery (every year, up to 25 years or loss to follow-up) | 
| Excess Weight Loss |  | Before surgery (Day 0) and After surgery (every year, up to 25 years or loss to follow-up) | 
| % weight loss |  | Before surgery (Day 0) and After surgery (every year, up to 25 years or loss to follow-up) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| type of surgical procedure | gastric bypass, sleeve gastrectomy, gastric banding, biliopancreatic diversion, redo surgery, endoscopic procedure… | at the time of surgery (Day 1) | 
| age | demographic data: age | before surgery (Day 0) | 
| gender | demographic data: gender | before surgery (Day 0) | 
| Type of comorbidities | demographic data: comorbidities (diabetes, arterial hypertension, sleep apnea, dyslipidemia) | before surgery (Day 0) | 
| surgical complications | leaks, hemorrhage, phlebitis, pulmonary embolism, nutritional deficiencies, occlusions,… | per and postoperative (up to 25 years or loss to follow-up) | 
| dose of insulin | evolution of comorbidities: evolution of medical treatment | after surgery (up to 25 years or loss to follow-up) | 
| number of oral medications | evolution of comorbidities: evolution of medical treatment | after surgery (up to 25 years or loss to follow-up) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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bariatric surgery, follow-up, weight loss, complications, comorbidities evolution