P861 - PROTEIN CONSUMPTION AND SARCOPENIA DEVELOPMENT FOLLOWING BARIATRIC SURGERY

P861

PROTEIN CONSUMPTION AND SARCOPENIA DEVELOPMENT FOLLOWING BARIATRIC SURGERY

F. Simas¹, I. Rego De Figueiredo^1,*, M. M. Pires¹, 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: Following bariatric surgery sarcopenia is often present. Therefore, nutritional guidelines recommend a minimal intake of 60g of protein daily. We aimed to assess compliance in protein intake among patients submitted to bariatric surgery and their sarcopenia risk.

Methods: A longitudinal study was performed in patients with obesity submitted to bariatric surgery. Patients were assessed for sarcopenia using SARC-F, Skeletal Muscle Mass (SMI) and Fat Free Mass Index (FFMI), as well as functional strength assessment with handgrip. Nutritional assessment was done with food frequency questionnaire for 1 month following surgery, and three-day food record for 3- and 6-months following surgery.

Results: A total of 55 patients were included, however only 12 patients fulfilled the dietary diaries at all the time points. They were mainly female (83%), with an average age of 45,5 years old. Preoperative anthropometrics showed an average weight of 124,5kgs and correspondent 45kg/m2 mean BMI, with 47,6% fat mass and 125cm of waist circumference.

The risk for sarcopenia according to SARC-F decreased from 7% to 0% and there was no patient with sarcopenia by SMI or FFMI. Indeed, despite the significant decrease on FFM from 64,7 to 55,4kg (p=0.03), functional strength increased, with significance on the left hand (from 88,2% to 99,7% p=0.08).

Notwithstanding the significant decrease in total serum protein level from 71g/dL, before surgery, to 66,7g/dL (p<0.001) at 6-months after surgery, dietary intake of protein increased over time (from 65,6 to 94g/day, p=0.016).

Conclusion: Despite a decrease in FFM and protein absorption observed after bariatric surgery, sarcopenia can be prevented through an adequate protein intake.

Disclosure of Interest: None declared