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Thirteen years of follow-up in patients with adjustable silicone gastric banding for obesity: weight loss and constant rate of late specific complications
- Publication Year :
- 2004
- Publisher :
- Springer Science, 2004.
-
Abstract
- Background: Despite its simplicity, safety and good short-term results, progressive weight regain and a high incidence of complications have been reported after the adjustable silicone gastric banding (ASGB). The aim of this study is to evaluate the long-term results of this operation in our patient population. Methods: Between 1990 and 1996, 45 morbidly obese patients underwent insertion of an ASGB. The trend of the patients' BMI over time was studied using a linear mixed effect model adjusted for the preoperative BMI. So as to estimate the cumulative probability of band removal and the cumulative hazard function, Λ(t) Kaplan-Meier analysis was used. Results: 1 year after the operation, the average BMI was 79% of its preoperative value, which then increased linearly over time. The slope of the regression line was estimated at β =0.42, indicating an average increase of 0.42 BMI units per year. 27 bands (60%) were removed because of specific late complications. The cumulative risk of band removal increased linearly with time. The hazard rate was estimated to be λ =0.008 events/patient/month, corresponding to 0.1 events/patient/year. Conclusions: ASGB yielded good short-term results, but the progressive weight regain and constant risk of complications in the long term tend to nullify the optimism.
- Subjects :
- Adult
Male
medicine.medical_specialty
Time Factors
Gastroplasty
Endocrinology, Diabetes and Metabolism
Silicones
Risk Assessment
Severity of Illness Index
Body Mass Index
Age Distribution
Postoperative Complications
Weight loss
Recurrence
Linear regression
Severity of illness
Weight Loss
medicine
Humans
Obesity
Sex Distribution
Probability
Retrospective Studies
Gastric Balloon
Nutrition and Dietetics
business.industry
Incidence (epidemiology)
Incidence
Hazard ratio
Retrospective cohort study
Middle Aged
Surgery
Obesity, Morbid
Treatment Outcome
Italy
Female
medicine.symptom
Risk assessment
business
Body mass index
Follow-Up Studies
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....08976beb964bc407e7e4ff254c9db13c