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Impact of GEA Simultaneous to VSG on Post-operative GERD

Impact of Gastroenteroanastomosis Simultaneous to Vertical Gastrectomy on Post-operative Gastroesophageal Reflux

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07537244
Enrollment
60
Registered
2026-04-17
Start date
2023-02-18
Completion date
2028-04-01
Last updated
2026-04-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity, Reflux, Gastroesophageal

Keywords

Gastroesophageal reflux disease, vertical sleeve gastrectomy, gastroenteroanastomosis

Brief summary

The goal of this clinical trial is to evaluate the effect of GEA on GERD in patients undergoing VSG. The main question it aims to answer is: • Does adoption of GEA to VSG reduce the occurrence of GERD? Participants will complete a symptom questionnaire during follow-up visits. All exams are already part of the surgical or GERD follow-up routine. Researchers will compare with GEA (Group A) and Without GEA (Group B) to see if adopting GEA during VSG reduces the occurrence of GERD.

Detailed description

All patients aged between 18 and 65 years old who are candidates for bariatric surgery, who opt for VSG, will be consecutively invited to participate in the open study. Initially, patients will be allocated into two groups, matched by BMI and age. Regarding age, they will be separated into two categories: between 18 and 40 years old, ≥40 years old. Regarding BMI, they will be divided into two groups: BMI\<40 and BMI≥40. After being allocated according to weight criteria, the randomization for the GEA will proceed through a draw during the surgical procedure, after making the gastric tube. So, we will have two groups: With GEA (Group A); and Without GEA (Group B), both with 30 patients each, totaling 60 research participants. All patients will be evaluated for GERD before, 12, 24 and 60 months after surgery, and will have permanent access to the team regarding the details of their operations that may be necessary.

Interventions

PROCEDUREgastroenteroanastomosis simultaneous to vertical sleeve gastrectomy

GEA will be held after completion of GV. The small intestine is then measured every 5 cm, measured with the aid of markings on the laparoscopic clamps, and at 280 cm the manual laterolateral gastroileal anastomosis is performed between 4 and 5 cm in an isoperistaltic direction and 3 cm proximally to the pylorus. Then, 40 cm distally to the gastroileoanastomosis, the Roux-en-Y is constructed with a 2-cm diameter lateral-to-side manual anastomosis followed by the transection of the ileal limb segment interposed with the anastomoses.

VSG will be performed as primary surgery. The greater curvature is released up to the angle of His in order to perform an ascending stapling from 5 cm proximal to the pylorus to 1 cm from the angle of His and guided by a 32 French Fouchet probe. Stapling starts 5 cm from the pylorus and extends to 1 cm from the angle of His. The result is a tube of approximately 150 ml as adapted in consensus.

Sponsors

Clinica Gastrobese
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* All VSG candidate patients aged \>18 and \<65 years and BMI≥ 35 and BMI≤50 who agree to participate in the study

Exclusion criteria

* Presence of reflux esophagitis according to the Lyon Consensus * Previous gastric surgery * Esophagus' motor diseases * Development of chronic diseases associated with the use of medications such as chemotherapy, anti-rheumatics, etc. * Patients who fail to undergo the study exams during follow-up or who withdraw the informed consent form (TCLE) at any time during the study

Design outcomes

Primary

MeasureTime frameDescription
GERD in endoscopyuntil 60 monthsdecrease or absence of esophagitis, detected by endoscopy (Los Angeles classification), and esophageal acid exposure, detected by pH monitoring, in the group with GEA
GERD symptomsuntil 60 monthsimprovement or absence of GERD symptoms reported by the patient in consultation and QS-GERD. The QS-GERD (Gastroesophageal Reflux Disease Symptom Questionnaire) is a self-administered tool designed to diagnose and quantify the intensity of GERD symptoms. It consists of approximately 11 questions (including self-perceived health), assessing typical and atypical symptoms, with scores ranging from 0 to 50 or 55, indicating the severity of reflux.

Secondary

MeasureTime frameDescription
weight lossuntil 60 monthsBetter weight loss with the combination of techniques during the postoperative period, measured through body mass index (BMI), bioelectrical impedance analysis (fat mass/lean mass), body weight, and percent excess BMI loss (% excess BMI loss).

Countries

Brazil

Contacts

PRINCIPAL_INVESTIGATORCarlos Madalosso, PhD

Clinica Gastrobese

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 18, 2026