title: [Clinical characteristics associated to resectability in patients with tumors of the ampulla of Vater in a third-level hospital in Mexico: an 18-year experience].
abstract: BACKGROUND
  Ampulla of Vater's tumors (AVT) are rare and account for 0.2% of neoplasia in necropsies. The stage, comorbidities and surgical experience are crucial for prognosis. The aim of this work is to report the clinical characteristics, treatment and complication of a group of patients with AVT.
  
  
  METHODS
  Patients with AVT were included in a retrospective manner. Descriptive statistics was used and data were shown as means and SD.
  
  
  RESULTS
  One hundred and six patients were included with a mean age of 58.5 +/- 14 years and 58% were women. Jaundice was the most common clinical data and it was present in 90% of cases. Two-thirds of patients underwent a Whipple surgical procedure. Complications of surgery were present in 35% of cases and abdominal sepsis and pancreatic fistulae were the most common (32% and 29%, respectively). Adenocarcinoma was the most common histological type and 39% of cases were in stage IV at diagnosis. Age higher or equal to 65 years was associated with less surgical possibilities. Melena at presentation was associated with a higher probability of surgical resection.
  
  
  CONCLUSIONS
  The probability of surgical resection is lower in patients older than 65 years and higher in those with melena at the diagnosis.
authors.affiliation: Departamento de Gastroenterología, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, Tlalpan, DF México. henrytocay@hotmail.com
authors.forename: Henry
authors.initials: H
authors.lastname: Tocay-Ajcuc
authors.forename: Félix I
authors.initials: FI
authors.lastname: Téllez-Avila
authors.forename: Carlos I
authors.initials: CI
authors.lastname: García-Martínez
authors.forename: Norberto C
authors.initials: NC
authors.lastname: Chávez-Tapia
authors.forename: Luis F
authors.initials: LF
authors.lastname: Uscanga-Domínguez
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Ramírez-Luna
authors.forename: Carlos
authors.initials: C
authors.lastname: Chan-Nuñez
authors.forename: Roberto
authors.initials: R
authors.lastname: Ruíz-Cordero
authors.forename: Aldo
authors.initials: A
authors.lastname: Torre-Delgadillo
mesh_terms: D000368:Aged; D014670:Ampulla of Vater / Q000473:pathology / Q000601:surgery*; D003138:Common Bile Duct Neoplasms / Q000473:pathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008800:Mexico; D008875:Middle Aged; D009367:Neoplasm Staging; D018579:Patient Selection; D012189:Retrospective Studies