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The Effect of Bariatric/Metabolic Surgery on GFR

Prospective Cohort Study of the Effect of Bariatric/Metabolic Surgery on Morbid Obesity Patients With Metabolic Syndrome

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02406664
Enrollment
30
Registered
2015-04-02
Start date
2015-01-31
Completion date
2017-12-31
Last updated
2016-02-19

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

Conditions

Metabolic Syndrome

Brief summary

The purpose of this study is to determine the change in kidney function and blood pressure after gastric bypass versus conventional medical therapy in morbid obesity. The study mainly focus on glomerular filtration rate(GFR) with known relation to the renal function and 24 hours ambulatory blood pressure monitoring after intervention of gastric bypass or medical treatment.

Detailed description

Metabolic syndrome is strongly associated with obesity and the patients with this syndrome are at increased risk for cardiovascular disease. Obesity constitutes a strong risk factor for the development of chronic kidney disease. Among diabetics, obesity is known to amplify the risk for kidney disease. Bariatric surgery has yielded dramatic results including longitudinal loss of excess body weight and either complete reversal or significant improvement of several features of metabolic syndrome. In addition, many observational studies have demonstrated significant reduction in proteinuria after bariatric surgery. However, the changes in the component of cardiovascular problem among metabolic syndrome and changes in renal filtration function or progression to end stage kidney disease in morbidly obese patients after weight loss surgery have not been extensively studied. Therefore, our study mainly focus on glomerular filtration rate(GFR) with known relation to the renal function and 24 hours ambulatory blood pressure monitoring after intervention of gastric bypass or medical treatment.

Interventions

PROCEDUREBariatric surgery

Laparoscopic or Robot R-Y gastric bypass

Sponsors

Hanyang University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Morbid obesity (BMI\>30) patients with one of comorbidity (type 2 diabetes, dyslipidemia, or hypertension) * Morbid obese patients (BMI\>35)

Exclusion criteria

* Prior bariatric surgery * Malignancy (any type) * End stage renal disease

Design outcomes

Primary

MeasureTime frame
Change in Glomerular filtration ratebefore, 6, 12month after surgery

Secondary

MeasureTime frameDescription
Systolic function (EF)Before, 6 and 12month after surgerymeasured by echocardogram
Diastolic function (E,A,DT,IVRT,E/e')Before, 6 and 12month after surgerymeasured by echocardogram
Change in excessive body weightbefore, 6, 12month after surgery
Change of night time blood pressure (systolic blood pressure, diastolic blood pressure, mean blood pressure)Before, 6, and 12month after surgerymeasured by 24 hours ambulatory blood pressure monitoring
Change of 24 hours blood pressure (systolic blood pressure, diastolic blood pressure, mean blood pressure)Before, 6, and 12month after surgerymeasured by 24 hours ambulatory blood pressure monitoring
Change of daytime blood pressure (systolic blood pressure, diastolic blood pressure, mean blood pressure)Before, 6, and 12month after surgerymeasured by 24 hours ambulatory blood pressure monitoring

Countries

South Korea

Contacts

Primary ContactTae Kyung Ha, MD,PhD
missurgeon@hanyang.ac.kr82-2-2290-8444

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026