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The Impact of Different Carbohydrate Restriction After a Gastric Bypass on the Ketosis and Ketoacidosis

The Impact of Different Carbohydrate Restriction After a Gastric Bypass on the Manifestation of Starvation Ketosis and Ketoacidosis in Patients With Nonalcoholic Steatohepatitis

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06338969
Enrollment
150
Registered
2024-04-01
Start date
2024-03-25
Completion date
2025-08-01
Last updated
2024-04-03

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

Conditions

Carbohydrate Metabolism Disorder, Keto Acidosis, Ketosis, NASH, Obesity, Morbid

Keywords

Carbohydrate restriction, Ketosis after bariatric surgery

Brief summary

Background: Ketosis after bariatric surgery is a metabolic process that occurs when the body breaks down fat for energy because of not getting enough carbohydrates. Insufficient production of ketone bodies reduces the rate of weight loss, and excessive amounts of ketones can lead to ketoacidosis or liver failure in patients with nonalcoholic steatohepatitis (NASH). The investigators hypothesize that weight loss is directly related to calorie intake, and a significant reduction in carbohydrate content leads to increased ketosis and the risk of ketoacidosis. Objectives: The study aimed to compare the incidence of ketoacidosis and liver failure in patients with NASH with different intakes of carbohydrates in the early postoperative period after gastric bypass. In addition, the investigators want to find out how carbohydrate restriction will affect weight loss for up to 1 year.

Detailed description

Methods: This study is a three-arm randomized controlled trial. All patients will undergo laparoscopic one anastomotic gastric bypass. In the postoperative period, all patients will receive normal daily amounts of protein and fat. Depending on the amount of carbohydrates that will be received after surgery, patients will randomly (no mask) be divided into three groups: The first group: 51-75% deficit in carbohydrates Second group: 26-50% deficit in carbohydrates The third group: has a 1-25% deficit in carbohydrates. Primary outcome measurement Compare the incidence of ketoacidosis and liver failure in three groups of patients with NASH with different intakes of carbohydrates in the early postoperative period after gastric bypass. Secondary outcome measurements Change in body mass index (Δ BMI). Effect weight loss for up to 1 year.

Interventions

OTHERCarbohydrate Restriction after a Gastric Bypass

All patients will undergo laparoscopic one anastomotic gastric bypass. In the postoperative period, all patients will receive normal daily amounts of protein and fat. Depending on the amount of carbohydrates that will be received after surgery, patients will randomly (no mask) be divided into three groups: The first group: 51-75% deficit in carbohydrates Second group: 26-50% deficit in carbohydrates The third group: has a 1-25% deficit in carbohydrates.

Sponsors

The Society of Bariatric and Metabolic Surgeons of Kazakhstan
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* obesity patients BMI 30-50 kg/m2. * patients with nonalcoholic steatohepatitis (NASH).

Exclusion criteria

* patients with active physical sports * diabetes * cirrhosis

Design outcomes

Primary

MeasureTime frameDescription
Cases of liver failureThe time frame is baseline, first 7 days, 1, 3, 6,12 months after surgery.Compare the incidence of liver failure in three groups of patients with NASH with different intakes of carbohydrates in the early postoperative period after gastric bypass
Cases of ketosis and incidence of ketoacidosisThe time frame is baseline, first 7 days, 1, 3, 6,12 months after surgery.Compare the incidence of ketoacidosis and liver failure in three groups of patients with NASH with different intakes of carbohydrates in the early postoperative period after gastric bypass

Secondary

MeasureTime frameDescription
Change in body mass index (Δ BMI)The time frame is baseline,1, 3, 6,12 months after surgery.This measurement assesses the change in BMI after the intervention. Weight (kg) and height (cm) will be combined in the BMI (kg/m2).

Countries

Kazakhstan

Contacts

Primary ContactOral Ospanov, PhD
bariatric.kz@gmail.com7015287734
Backup ContactBakhtiyar Yelembayev
elembaevbaha@gmail.com7071302383

Outcome results

None listed

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