P862 - SARCOPENIC OBESITY PREVALENCE FOLLOWING BARIATRIC SURGERY

P862

SARCOPENIC OBESITY PREVALENCE FOLLOWING BARIATRIC SURGERY

F. Simas¹, M. M. Pires¹, I. Rego De Figueiredo^1,*, L. Cristino¹, J. Silva-Nunes¹, L. Manaças¹

¹Centro de Tratamento Cirúrgico de Obesidade, Hospital Curry Cabral, Unidade Local de Saúde São José, Centro Clínico Académico de Lisboa, Lisboa, Portugal

Rationale: Bariatric surgery remains the most effective treatment for severe obesity. However, it is usually associated with an overall decrease of free fat mass (FFM) and a consequent development of sarcopenia.

Methods: A longitudinal study was performed in patients with obesity submitted to bariatric surgery. SARC-F was applied as screening tool. Sarcopenia was assessed by both the Skeletal Muscle Mass (SMI) and the Fat Free Mass Index (FFMI). Muscle function was measured by handgrip strength. Analytical data on total protein serum level was also assessed. Data was collected before and 1 month, 3 months and 6 months after surgery.

Results: A total of 55 patients were included, however not all patients had data collected on all time points. Most of the patients were female (82%), with an average age of 46,9 years. Before surgery, mean weight was 124,5kgs with average BMI of 45kg/m2. Fat mass percentage was on average 47,6% and waist circumference 125cm. The most frequent performed surgery was one-anastomosis gastric bypass (89%).

As expected, total body weight (and BMI) and fat mass decreased over time, alongside with FFM decreased over time. Patients screening for sarcopenia decreased over time using SARC-F (from 29% to 0%). No patient had sarcopenia by SMI or FFMI methods. Functional strength, as assessed by handgrip, was not significantly increased (although a trend was observed for the left hand): %HG right from 94.7% to 98,5%, p-value=0.15; %HG left from 88,2% to 99,7% p=0.08. This contrasted with a significant decrease in total serum protein level from 71g/dL to 66,7g/dL (p<0.001).

Conclusion: No development of sarcopenia occurred following bariatric surgery. In fact, there tend to occur an increase in functional strength among these patients. This fact may result from the intensive nutritional hyperproteic plan and from an overall incentive for regular exercise.

Disclosure of Interest: None declared