Is bariatric surgery safe in the elderly population?

Abstract

Background

Bariatric surgery has proven to be the most effective treatment for morbid obesity in all age groups and is considered superior to medical treatment. The aim of our study was to report the outcomes of bariatric surgery in patients over 65 years of age at our institution.

Methods

A retrospective review of a prospectively collected database was conducted of all patients > 65 years who underwent a bariatric procedure between 2005 and 2015 at our institution. We compared this group to a control group of patients < 65 years of age who were operated on during the last 5 years, from 2011 to 2015. Data analyzed included age, preoperative BMI, postoperative complications, and comorbidities.

Results

Of 1613 patients studied, 1220 patients were under 65 years of age, and in Group B, 393 were >65 years of age at time of surgery. There was a significant difference in proportion of male patients among groups; 42 % in Group B were male compared to 30 % in Group A (p < 0.001). Caucasians represented the majority in both groups. Both groups had comparable preoperative BMI 42.27 kg/m² for the younger Group A population versus 41.64 kg/m² for Group B (p = 0.074). Group B had more comorbidities than Group A: hypertension (p < 0.001), sleep apnea (p < 0.001), and hypercholesterolemia (p < 0.001). No difference was found between groups in history of depression (p = 0.409) or type II diabetes (p = 0.961). Distribution of procedures was significantly different between groups, with more LSG in Group A (p < 0.001). Elderly patients had longer length of stay (LOS) by one day on average (LOS = 3 days, p < 0.001), but a lower readmission rate (10 % vs. 7 %) (p = 0.023). Complication rates were comparable in both groups, except for incidence of de novo GERD, which was higher in Group B (5 % vs. 8 %) (p = 0.005).

Conclusions

Elderly patients are usually sicker in terms of comorbidities than the younger population. However, age does not seem to represent a risk of surgical complications after bariatric surgery.

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