Morbid ObesitySGNCT02931292
A Decade of Sleeve Gastrectomy: Analysis of Short and Long-term Outcome of 562 Patients
An observational study of Morbid Obesity and Obesity, run by Medical Park Gaziantep Hospital.
Trial summary
Obesity is a chronic disease and its treatment requires close follow-up to accurately assess the efficacy and durability of any treatment strategy. It is widely accepted that bariatric surgery patients require lifetime follow-up to assess for weight loss, co-morbidity changes, and nutritional deficiencies. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Morbid Obesity, Obesity, Diabetes
- What is being tested?
- Laparoscopic sleeve gastrectomy
- Type of treatment
- Surgery or procedure
- How many people
- 562 participants
- Where
- No sites listed yet
- Study dates
- Jun 2005to Jun 2016
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: From Jun 2005 to Jun 2015, overall 562 consecutive morbidly obese patients admitted to the Hatem Hospital and Medical park Gaziantep Hospital that underwent sleeve gastrectomy for morbid obesity and/or its related co-morbidities were included to the study.
Who may be able to join
- underwent LSG for morbid obesity and related morbidities as a primary procedure
Who cannot join
- previous history of obesity surgery
About this study
Official title: A Decade of Sleeve Gastrectomy as a Single Bariatric/Metabolic Procedure: Analysis of Short and Long-term Outcome of 562 Patients
Obesity is a chronic disease and its treatment requires close follow-up to accurately assess the efficacy and durability of any treatment strategy. It is widely accepted that bariatric surgery patients require lifetime follow-up to assess for weight loss, co-morbidity changes, and nutritional deficiencies.
The study objective was to ascertain efficacy of weight loss and complication rates in 562 consecutive cases of laparoscopic sleeve gastrectomy (LSG) in a single surgeon practice.
Read the detailed description
Obesity is a major healthcare problem reaching epidemic proportion and affecting people of all age (1). The only treatment that proven effective option for a significant substantial long-term weight loss and that cures or durably improves comorbidities is still bariatric surgery (2, 3). Because obesity is a chronic disease, it is widely accepted that to accurately assess the efficacy and durability of any type of bariatric surgery requires lifetime follow-up to assess for weight loss, co-morbidity changes, and nutritional deficiencies.
Despite initially performed as a first part of the staged procedures, the laparoscopic sleeve gastrectomy (LSG) has since introduced as a stand-alone bariatric operation associated with good, short and mid-term weight loss and satisfactory complication rates when conducted in experienced hands. Although simplicity and the overall efficacy of the procedure supported by meta-analysis and systematic review (4, 5), there are still limited long-term outcome data (6). Due to publication bias or multiple controversies regarding the technique of LSG, some of the available data may have underreported which has also been resulted in questioning the long-term weight loss efficacy of the procedure.
Although addressed by a recent consensus document,12 there are multiple controversies regarding the technique of LSG, and this may in part be what has led to the variable published results.
The study objective was to assess the long-term (≥ 5 years) as well as short (1 to ≤ 3 years) and mid-term (> 3 to < 5 years) results in regard to the BMI change, resolution of co-morbidities and complications in 562 consecutive morbidly obese patients undergoing LSG as a primary procedure.
- Conditions
- Morbid Obesity, Obesity, Diabetes, Dyslipidemia, Hypertension
- Being tested
- Laparoscopic sleeve gastrectomy
- Keywords
- sleeve gastrectomy, laparoscopy, bariatric surgery, obesity surgery, metabolic surgery
- Medical subject headings
- Obesity, Morbid, Obesity, Diabetes Mellitus, Dyslipidemias, Hypertension
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Laparoscopic sleeve gastrectomyProcedure or surgery
Special care was given to the complete mobilization of the gastric fundus, with meticulous dissection of the posterior gastric wall from the left pillar. A 36-Fr calibration bougie was used. Resection started 2 to 6 cm from pylorus, and it was conducted upward to 1.5 cm from the angle of His, to avoid the "critical area." A gastric remnant of 60-80 mL volume (measured by administering methylene blue saline solution via nasogastric tube) was obtained.
| Study group | Role | What they receive |
|---|---|---|
| Sleeve Gastrectomy | Laparoscopic sleeve gastrectomy Receives: Procedure: Laparoscopic sleeve gastrectomy |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percent excess body mass index loss (%EBMIL)
calculated using formula: %EBMIL = [∆BMI / (initial BMI - 25)] x 100
Measured: through study completion, an average of 1 year
Secondary outcomes (3)
Hemoglobin A1c (HbA1c)
Definitions of glycemic outcomes after sleeve gastrectomy
Measured: through study completion, an average of 1 year
change on lipid profile
Change on lipid profile before and after bariatric surgery was reported according to the Adult Treatment Panel III Guidelines, 2001, of the National Heart, Lung and Blood Institute as follows: no change, improvement in dislipidemia (defined as decrease in number or dose of lipid-lowering agents with equivalent control of dyslipidemia or improved control of lipids on equivalent medication) and remission (defined as normal lipid panel off medication).
Measured: through study completion, an average of 1 year
percent of complications
Complications were evaluated under two headings. Major complications were defined as any complication that resulted in a prolonged hospital stay (beyond 7 days), reintervention, or reoperation. Minor complications were included everything else that is not included under major. They were further categorized as early if observed in 30 days or late if beyond 30 days.
Measured: through study completion, an average of 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Oct 2016 (estimated)
- Study startJun 2005
- Primary completionJun 2015
- Study completionJun 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Morbid ObesityStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 562 participants (actual)
Sponsor and investigators
- Lead sponsor
- Medical Park Gaziantep Hospital
- Sponsor type
- University, hospital or other
- Collaborators
- Harran University
- Responsible party
- Principal investigator, Mehmet Kaplan, Medical Park Gaziantep Hospital
- Investigators
- Mehmet Kaplan, M.D., Principal investigator, Bahcesehir University, BAU
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02931292
- Sponsor's protocol ID
- MK-009-MO-SG1
- Acronym
- SG
- Status last verified
- Oct 2016
- First submitted
- 9 Oct 2016
- Last updated
- 13 Oct 2016
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 13 Oct 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Decade of Sleeve Gastrectomy as a Single Bariatric/Metabolic Procedure: Analysis of Short and Long-term Outcome of 562 Patients
- ClinicalTrials.gov ID
- NCT02931292
- Acronym / sponsor ID
- SG / MK-009-MO-SG1
- Conditions
- Morbid Obesity, Obesity, Diabetes, Dyslipidemia, Hypertension
- Keywords
- sleeve gastrectomy, laparoscopy, bariatric surgery, obesity surgery, metabolic surgery
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 562 participants (actual)
- Lead sponsor
- Medical Park Gaziantep HospitalUniversity, hospital or other
- Collaborators
- Harran University
- Study start
- Jun 2005
- Primary completion
- Jun 2015 (actual)
- Study completion
- Jun 2016 (actual)
- First posted
- 13 Oct 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Obesity is a chronic disease and its treatment requires close follow-up to accurately assess the efficacy and durability of any treatment strategy. It is widely accepted that bariatric surgery patients require lifetime follow-up to assess for weight loss, co-morbidity changes, and nutritional deficiencies.
The study objective was to ascertain efficacy of weight loss and complication rates in 562 consecutive cases of laparoscopic sleeve gastrectomy (LSG) in a single surgeon practice.
Detailed description
Obesity is a major healthcare problem reaching epidemic proportion and affecting people of all age (1). The only treatment that proven effective option for a significant substantial long-term weight loss and that cures or durably improves comorbidities is still bariatric surgery (2, 3). Because obesity is a chronic disease, it is widely accepted that to accurately assess the efficacy and durability of any type of bariatric surgery requires lifetime follow-up to assess for weight loss, co-morbidity changes, and nutritional deficiencies.
Despite initially performed as a first part of the staged procedures, the laparoscopic sleeve gastrectomy (LSG) has since introduced as a stand-alone bariatric operation associated with good, short and mid-term weight loss and satisfactory complication rates when conducted in experienced hands. Although simplicity and the overall efficacy of the procedure supported by meta-analysis and systematic review (4, 5), there are still limited long-term outcome data (6). Due to publication bias or multiple controversies regarding the technique of LSG, some of the available data may have underreported which has also been resulted in questioning the long-term weight loss efficacy of the procedure.
Although addressed by a recent consensus document,12 there are multiple controversies regarding the technique of LSG, and this may in part be what has led to the variable published results.
The study objective was to assess the long-term (≥ 5 years) as well as short (1 to ≤ 3 years) and mid-term (> 3 to < 5 years) results in regard to the BMI change, resolution of co-morbidities and complications in 562 consecutive morbidly obese patients undergoing LSG as a primary procedure.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Sleeve Gastrectomy | – | Procedure: Laparoscopic sleeve gastrectomyLaparoscopic sleeve gastrectomy |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- From Jun 2005 to Jun 2015, overall 562 consecutive morbidly obese patients admitted to the Hatem Hospital and Medical park Gaziantep Hospital that underwent sleeve gastrectomy for morbid obesity and/or its related co-morbidities were included to the study.
Key inclusion criteria (1 listed)
- underwent LSG for morbid obesity and related morbidities as a primary procedure
Key exclusion criteria (1 listed)
- previous history of obesity surgery
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Laparoscopic sleeve gastrectomySpecial care was given to the complete mobilization of the gastric fundus, with meticulous dissection of the posterior gastric wall from the left pillar. A 36-Fr calibration bougie was used. Resection started 2 to 6 cm from pylorus, and it was conducted upward to 1.5 cm from the angle of His, to avoid the "critical area." A gastric remnant of 60-80 mL volume (measured by administering methylene blue saline solution via nasogastric tube) was obtained. | Procedure or surgery | Sleeve Gastrectomy |
Primary outcome
Percent excess body mass index loss (%EBMIL)
Time frame: through study completion, an average of 1 year
calculated using formula: %EBMIL = [∆BMI / (initial BMI - 25)] x 100
3 secondary outcomes
Hemoglobin A1c (HbA1c)
Time frame: through study completion, an average of 1 year
change on lipid profile
Time frame: through study completion, an average of 1 year
percent of complications
Time frame: through study completion, an average of 1 year
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Oct 2016.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Mehmet Kaplan, M.D. principal investigator
Bahcesehir University, BAU
Questions about this trial
What is this clinical trial studying?
An observational study of Morbid Obesity and Obesity, run by Medical Park Gaziantep Hospital.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 13 Oct 2016. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percent excess body mass index loss (%EBMIL) (time frame: through study completion, an average of 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Oct 2016; AzTrials last refreshed its copy on 8 Nov 2026.