title: Frequency of cardiovascular risk factors before and 6 and 12 months after bariatric surgery.
abstract: To compare the frequency of cardiovascular risk factors (CVRFs) in obese patients of the Brazilian Unified Health System (Sistema Único de Saúde - SUS) with indication of bariatric surgery during the preoperative period and after the sixth month and the first year of the procedure.
  
  
  
  An observational, longitudinal, prospective, and analytical study was performed, with consecutive selection of obese patients with indication for surgery referred to preoperative cardiac evaluation. The protocol consisted of: medical history, physical examination, electrocardiogram, echocardiogram, and biochemical analysis. This study analyzed the following variables: weight, body mass index (BMI), waist circumference (WC), systemic arterial hypertension (SAH), diabetes mellitus type 2(DM), dyslipidemia (high LDL cholesterol; low HDL cholesterol; hypertriglyceridemia), and metabolic syndrome (MS). The chi-squared test and the Tukey-Kramer method were used for statistical analysis.
  
  
  
  The sample was composed of 96 obese people, among which 86 were women, aged between 18 and 58 years old (median 35 years old). At the end of six months, significant reductions of 88%, 95%, 71%, 89%, and 80% in the frequency of SAH, high LDL cholesterol, hypertriglyceridemia, DM, and MS could already be observed. A significant and small reduction in the frequency of low HDL cholesterol (24%) and abnormal WC (31%) was observed only at the end of 12 months. After six months and one year, weight and BMI experienced reductions of 33.4kg and 44.3kg, and 13.1kg/m(2) and 17.2kg/m(2), respectively.
  
  
  
  The positive impact on weight loss and the reduction in BMI, WC, and in the frequency of CVRFs are already extremely significant after six months and remain so one year after bariatric surgery.
authors.affiliation: Hospital Universitário Professor Alberto Antunes, Universidade Federal de Alagoas, Maceió, AL, Brasil. malayde1@uol.com.br
authors.forename: Maria Alayde Mendonça da
authors.initials: MA
authors.lastname: Silva
authors.forename: Ivan Romero
authors.initials: IR
authors.lastname: Rivera
authors.forename: Emília Maria Wanderley de Gusmão
authors.initials: EM
authors.lastname: Barbosa
authors.forename: Maria Angélica Correia
authors.initials: MA
authors.lastname: Crispim
authors.forename: Guilherme Costa
authors.initials: GC
authors.lastname: Farias
authors.forename: Alberto Jorge Albuquerque
authors.initials: AJ
authors.lastname: Fontan
authors.forename: Rodrigo Azavedo
authors.initials: RA
authors.lastname: Bezerra
authors.forename: Larissa Gabriella de Souza
authors.initials: LG
authors.lastname: Sá
mesh_terms: D000328:Adult; D050110:Bariatric Surgery; D003924:Diabetes Mellitus, Type 2 / Q000453:epidemiology*; D050171:Dyslipidemias / Q000453:epidemiology*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000453:epidemiology*; D008297:Male; D024821:Metabolic Syndrome / Q000453:epidemiology*; D008875:Middle Aged; D009767:Obesity, Morbid / Q000150:complications* / Q000601:surgery*; D011184:Postoperative Period; D057234:Preoperative Period; D011446:Prospective Studies; D055815:Young Adult
keywords: Bariatric surgery; Diabetes mellitus tipo 2; Diabetes mellitus type 2; Dislipidemia; Dyslipidemia; Fatores de risco; Gastroplastia; Hipertensão; Hypertension; Obesidade; Obesity; Risk factors