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One-anastomosis Gastric Bypass/Mini-Gastric Bypass Versus Roux-en Y Gastric Bypass

Not Applicable
Terminated
Conditions
Obesity
Registration Number
NCT03045679
Lead Sponsor
Sana Klinikum Offenbach
Brief Summary

The aim of this prospective randomized controlled trial is to compare the two procedures One-anastomosis gastric Bypass/Mini-gastric Bypass (OAGB/MGB) and Roux-en Y gastric bypass (RYGB) in relation to intraoperative and postoperative complications (classification of Clavien-Dindo), mortality, metabolic impact (remission of type 2 diabetes mellitus, hypertonus, gastro-esophageal reflux disease, sleep apnea, dyslipidemia, quality of life, operation time, postoperative excess weight loss, malnutrition and re-do/revisonal surgery.

Detailed Description

OAGB/MGB is gaining popularity as a primary surgical treatment for morbid obesity due to reduced operation time, a shorter learning curve, better weight loss, higher metabolic impact and fewer major complications compared to RYGB.

In this prospective randomized controlled trial we want to compare OAGB/MGB and RYGB with a FU of up to 24 month.

Patients with indication for gastric bypass get randomized in group A (RYGB, n = 50) or B (OAGB/MGB, n = 50). FU is performed 1, 3, 6, 12 and 24 month after surgery.

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
100
Inclusion Criteria
  1. primary obesity surgery and indication for gastric bypass
  2. age: 18 - 65 years
  3. BMI > 40 kg/m² or BMI > 35 kg/m² with obesity related comorbidities
  4. informed consent
Exclusion Criteria
  1. obesity surgery in the anamnesis
  2. visceral surgery in the anamnesis (excluding appendectomy and cholecystectomy)

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Primary Outcome Measures
NameTimeMethod
complicationsup to 2 years after surgery

complications classified next to Clavien-Dindo

Secondary Outcome Measures
NameTimeMethod
quality of life questionnaireup to 2 years after surgery

changing in quality of life measured by questionnaire

weight lossup to 2 years after surgery

postoperative excess weight loss in %

operation timeoperation time during surgery in minutes

operation time during surgery in minutes

remission of type 2 diabetes mellitusup to 2 years after surgery

HbA1c \< 6.5% without medication

gastro-esophageal reflux diseaseup to 2 years after surgery

GERD-HRGL Heartburn Scale

malnutrition 3up to 2 years after surgery

postoperative malnutrition: ferritin (\< 30 µg/l)

malnutrition 4up to 2 years after surgery

postoperative malnutrition: vitamin E \< 12 µmol/l

mortalityup to 2 years after surgery

death up to 2 years after surgery

remission of sleep apneaup to 2 years after surgery

presence/absence of CPAP

remission of hypercholesterinemiaup to 2 years after surgery

cholesterin \< 155 mg/dl without medication

malnutrition 2up to 2 years after surgery

postoperative malnutrition: albumin \< 35 g/l

remission of hypertonusup to 2 years after surgery

blood pressure \< 140/90 mmHg without medication

malnutrition 1up to 2 years after surgery

postoperative malnutrition: protein \< 64 g/l

malnutrition 5up to 2 years after surgery

postoperative malnutrition: vitamin K \< 90 ng/l

revisional surgeryup to 2 years after surgery

revisional surgery during follow up

remission of hypertrigliceridemiaup to 2 years after surgery

triglyceride \< 200mg/dl without medication

malnutrition 6up to 2 years after surgery

postoperative malnutrition: vitamin 25-OH- Vitamin D3 \< 50 nmol/l

malnutrition 8up to 2 years after surgery

postoperative malnutrition: vitamin B12 \< 145 pmol/l

malnutrition 7up to 2 years after surgery

postoperative malnutrition: vitamin A \< 1.05 µmol/l

Trial Locations

Locations (1)

Sana Klinikum Offenbach

🇩🇪

Offenbach, Hessen, Germany

Sana Klinikum Offenbach
🇩🇪Offenbach, Hessen, Germany

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