Validity of serum pepsinogen I/II ratio for the diagnosis of gastric epithelial dysplasia and intestinal metaplasia during the follow-up of patients at risk for intestinal-type gastric adenocarcinoma

• Tipo: Artigo em Revista Científica Internacional
• Data: 2004

Autores

Mario Dinis Ribeiro (Autor) Outra; Costa-Pereira A (Autor) FMUP; Lopes, C (Autor) ICBAS; Barbosa, J (Autor) Outra; Macedo G (Autor) Outra; Moreira Dias, L (Autor) Outra; Lomba Viana, H (Autor) Outra; Silva, R (Autor) Outra; Abreu, N (Autor) Outra; Lomba Viana, R (Autor) Outra

Revista

Título: Neoplasia

Vol. 6

Páginas: 449-456

ISSN: 1522-8002

Editora: Elsevier

Indexação

ISI Web of Knowledge - 62 Citações

Scopus - 67 Citações

Outras Informações

ID Authenticus: P-000-8VS

DOI: 10.1593/neo.03505

Abstract (EN): A cohort of individuals (n = 136) with lesions as severe as atrophic chronic gastritis (ACG) was cross-sectionally evaluated for the validity assessment of pepsinogen I (PGI) and pepsinogen II (PGII) serum levels for the diagnosis of intestinal metaplasia (IM) and gastric dysplasia. PGI/PGII ratio [median (range)] was 4 (0.5-7.5) in patients with ACG (n = 35); 4.6 (1.9-6.8) in type I IM (n = 18); 4.2 (1.4-5.9) in type II or type III IM limited to the antrum and incisura (n = 20); 2.4 (0.4-5.6) in extensive incomplete IM (n = 38); and 1.3 (0.4-6.4) in low-grade dysplasia (n = 23) (P = .002). Using histopathologic data as a reference test, the area under the receiver operating characteristic curves (Cl 95%) was 0.73 (0.64-0.82) for extensive IM, 0.72 (0.58-0.85) for the diagnosis of dysplasia, and 0.81 (0.66-0.95) for the diagnosis of high-grade dysplasia. Using a PGI/PGII ratio of less than or equal to3 as the cutoff for dysplasia diagnosis, the sensitivity was 70% (62-78%), the specificity was 65% (57-73%), and the negative predictive value estimates were over 90%. No differences in PG levels according to age or gender were observed. Helicobacter pylori did not significantly influence validity measurement estimates. PGI/PGII serum level ratio can be used even in the management of patients with a high a priori probability for a positive test. It may be useful for the exclusion of more advanced lesions (extensive IM and neoplastic lesions).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8