Background
: Bariatric surgery promotes significant weight loss and
improvement of associated comorbidities; however, nutrients deficiencies and
weight regain may occur in the middle-late postoperative period.
Aim:
To investigate nutritional status in 10 years follow-up.
Methods
: Longitudinal retrospective study in which anthropometric,
biochemical indicators and nutritional intake were assessed before and after
one, two, three, four, five and ten years of Roux-en Y gastric bypass
through analysis of medical records.
Results
: After ten years there was a reduction of 29.2% of initial
weight; however, 87.1% of patients had significant weight regain. Moreover,
there was an increase of incidence of iron (9.2% to 18.5%), vitamin B12
(4.2% to 11.1%) and magnesium deficiency (14.1% to 14.8%). Folic acid
concentrations increased and the percentage of individuals with glucose
(40.4% to 3.7%), triglycerides (38% to 7.4%), HDL cholesterol (31 % to 7.4%)
and uric acid (70.5% to 11.1%) abnormalities reduced. Also, there is a
reduction of food intake at first year postoperative. After 10 years, there
was an increase in energy, protein and lipid intake, also a reduction in
folid acid intake.
Conclusions
: Roux-en Y gastric bypass is an effective procedure to
promote weight loss and improve comorbidities associated with obesity.
However, comparison between postoperative period of five and 10 years showed
a high prevalence of minerals deficiency and a significant weight regain,
evidencing the need for nutritional follow-up in the postoperative
period.