Skip to content

Long term follow up on metabolic characteristics and nutritional aspects following gastric bypass surgery compared with a non surgical group.

Obese patients who have undergone gastric bypass surgery as compared to a non-surgical group. A Long term follow up study of metabolic and nutritional outcomes.

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ANZCTR
Registry ID
ACTRN12612000505808
Enrollment
800
Registered
2012-05-10
Start date
2012-06-01
Completion date
Unknown
Last updated
2020-01-13

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

Conditions

None listed

Brief summary

Data is limited on the long term (greater than 5 years) outcomes following gastric bypass surgery. We wish to compare a group of subjects who have had a gastric bypass operation greater than 5 years ago to a group of obese subjects who have not had the same gastric bypass operation. We particularly want to focus on teh effect this procedure has on long term metabolic characteristics such as blood pressure, diabetes and cholesterol as well as some of the possible nutrient imbalances.

Interventions

Roux-en-Y gastric bypass surgery for patients with obesity +/- diabetes. This study will observe glycaemic outcomes, weight loss achieved and maintained, lipid profiles, hypertension rates and micronutrient status following at least 5 years since surgery.

Sponsors

Endocrine, diabetes and research centre, Wellington Regional Hospital
Lead SponsorHospital

Eligibility

Sex/Gender
All
Age
0 to No maximum
Healthy volunteers
No

Inclusion criteria

Roux-en-Y gastric bypass surgery performed by a single surgeon between 1990 and 2007 (Surgery group) Referred to Obesity clinic for consideration of Roux-en-Y gastric bypass surgery between 1990 and 2007 but surgery did not proceed (Non-surgery group)

Exclusion criteria

Previous alternative bariatric surgery Roux-en-Y Gastric Bypass (control group)

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026