title: [Early detection of abdominal aortic aneurysm in risk population].
abstract: BACKGROUND
  An aneurysm is the increase in diameter of an artery>50%; the abdominal aortic aneurysm (AAA) is the most frequent. Abdominal ultrasound is an accessible study, highly recommended for diagnosis. Screening at risk populations reduces morbidity and mortality of this disease.
  
  
  METHODS
  To determine the frequency of AAA by duplex Doppler in patients older than 65 years old with risk factors. A cross sectional study was performed, from June to October 2012, 144 patients were included, both genders, >65 years. The diameter of the infrarenal abdominal aorta was measured by duplex Doppler. AAA was defined as an aorta with diameter>3 cm.
  
  
  RESULTS
  Mean age was 72.7±6.7, 95.1% were male, 13% continued smoking. 127 of 144 were normal. 10 of 144 had AAA with diameters of 3.2 to 7.11 cm, all of them male. Logistic regression showed that active smoking is a significant predictive factor for AAA.
  
  
  CONCLUSIONS
  There is a significant frequency of AAA in male patients>65 years old.
authors.affiliation: Servicio de Angiología y Cirugía Vascular, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, Distrito Federal, México. elisa_angio@yahoo.com.
authors.forename: María Elizabeth
authors.initials: ME
authors.lastname: Enríquez-Vega
authors.forename: Hugo Francisco
authors.initials: HF
authors.lastname: Solorio-Rosete
authors.forename: Alfonso
authors.initials: A
authors.lastname: Cossío-Zazueta
authors.forename: Héctor
authors.initials: H
authors.lastname: Bizueto-Rosas
authors.forename: Juan Ernesto
authors.initials: JE
authors.lastname: Cruz-Castillo
authors.forename: Alessandra
authors.initials: A
authors.lastname: Iturburu-Enríquez
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging* / Q000209:etiology; D003430:Cross-Sectional Studies; D042241:Early Diagnosis; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D011446:Prospective Studies; D012307:Risk Factors; D018616:Ultrasonography, Doppler, Duplex
keywords: Abdominal aortic aneurysm; Ultrasound Doppler duplex