title: [Interleukin 18 (IL-18) and other immunological parameters as markers of severity in acute pancreatitis].
abstract: OBJECTIVE
  Our aim was to prospectively compare the behavior of interleukin 18 (IL-18) levels and other immunological parameters during the first week of hospitalization between acute pancreatitis patients with and without severity criteria, as well as between patients with and without late pseudocyst development.
  
  
  METHODS
  In 36 patients with acute pancreatis we compared sTNF-RI, IL-1Ra, IL-6, and IL-18 levels at days 1, 2, 3 and 7 after hospitalization between mild pancreatitis, severe pancreatitis, and a "control" group (13 patients) with uncomplicated biliary colic, as well as between patients with and without pseudocyst.
  
  
  RESULTS
  On comparing mild to severe pancreatitis, IL-18 was significantly higher only the first day in severe pancreatitis, while the other parameters were steadily higher after the second day. In patients developing pseudocyst, IL-18 was also noticeably higher the first day.
  
  
  CONCLUSIONS
  IL-18 appears to be the earliest marker of complications and severity in acute pancreatitis at both the systemic and local level (pseudocyst).
authors.affiliation: Servicio de Aparato Digestivo, Hospital Universitario del Río Hortega, Departamento de Medicina, Facultad de Medicina.
authors.forename: M A
authors.initials: MA
authors.lastname: Martín
authors.forename: E
authors.initials: E
authors.lastname: Saracíbar
authors.forename: A
authors.initials: A
authors.lastname: Santamaría
authors.forename: E
authors.initials: E
authors.lastname: Arranz
authors.forename: J A
authors.initials: JA
authors.lastname: Garrote
authors.forename: A
authors.initials: A
authors.lastname: Almaraz
authors.forename: M L
authors.initials: ML
authors.lastname: del Olmo
authors.forename: F
authors.initials: F
authors.lastname: García-Pajares
authors.forename: P
authors.initials: P
authors.lastname: Fernández-Orcajo
authors.forename: R
authors.initials: R
authors.lastname: Velicia
authors.forename: A
authors.initials: A
authors.lastname: Blanco-Quirós
authors.forename: A
authors.initials: A
authors.lastname: Caro-Patón
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015415:Biomarkers / Q000097:blood; D005260:Female; D006801:Humans; D020382:Interleukin-18 / Q000097:blood*; D008297:Male; D008875:Middle Aged; D010195:Pancreatitis / Q000097:blood*; D011446:Prospective Studies; D012720:Severity of Illness Index
chemical_list: D015415:Biomarkers; D020382:Interleukin-18