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Erschienen in:
01.08.2015 | Original Scientific Report
Major Esophageal Dilation After Laparoscopic Adjustable Gastric Banding in Symptomatic Patients: Does It Prevent Effective Weight Loss and How Should It be Treated?
Erschienen in: World Journal of Surgery | Ausgabe 8/2015
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Introduction
Esophageal dilation (ED) has been described as a long-term complication following laparoscopic adjustable gastric banding (LAGB) with an incidence of 0.5–50 %. The purpose of this study was to evaluate the effect of major ED on weight loss and find methods to diagnose ED and possible treatment strategies based on a classification.
Materials and methods
We performed a retrospective analysis of all patients undergoing LAGB between 2004 and 2008 in three community-based hospitals. ED was classified in four stages of dilation using gastrografin swallow. We report body mass index (BMI), failure rates and reoperations among these patients, with a mean follow-up period of 6.7 years.
Results
Nineteen (18.4 %) of 103 patients who underwent LAGB presented with esophageal dilation. Band deflation failed for all nine patients (8.7 %) with major ED. The mean BMI at LAGB (BMI 1), revision (BMI 2), and 1 year after conversion (BMI 3) were 45.9 ± 3.2, 42.8 ± 4.9 and 30.3 ± 5.5 kg/m2, respectively. No significant difference was found comparing BMI 1 and BMI 2 (p = 0,065, EWL1: 14.2 ± 21.7 kg/m2). In contrast, the weight loss after the revision surgery was significant (p = 0.001, EWL2: 67.1 ± 30 kg/m2). No significant difference was found concerning age, gender, ASA, preoperative (LAGB) weight, and mean interval between LAGB and revision comparing patients with major ED (IV) to patients with milder forms (ED I-III).
Conclusion
ED is a serious long-term complication after LAGB and seems to prevent effective weight loss in stage IV. Furthermore, untreated dilation could cause long-term damage to the esophagus. Therefore, we suggest routine radiographic follow-up after LAGB even in asymptomatic patients and a treatment based on a classification with an early surgical revision for major ED.