[Evaluation of endoscopic visualisation for identifying premalignant gastric lesions in a Columbian population using histopathology as a reference].
OBJECTIVE
To evaluate the performance of endoscopic visualization in the identification of premalignant gastric lesions, with histopathological examination of biopsy samples as a reference test, in Bucaramanga, Colombia.


METHODS
League for the Fight Against Cancer, Bucaramanga, Colombia.


METHODS
Diagnostic technology evaluation with cross-sectional sampling.


METHODS
We calculate the sensitivity, specificity, positive predictive value, negative predictive value, likelihood ratio (+), likelihood ratio (-), kappa index and the prevalence rate kappa.


RESULTS
A total of 155 patients were studied, with a mean age of 45.43 (14.15) years and an approximate male:female ratio of 2:1. The endoscopic visualization had a sensitivity of 87.84%, a specificity of 55.56%, a positive predictive value of 64.36%, a negative predictive value of 83.33%, a likelihood ratio+of 1.98, a likelihood ratio-de 0.22 and a kappa index of 0.4272, in the identification of preneoplastic lesions of the stomach in a population with a disease prevalence of 47.74%.


CONCLUSIONS
The endoscopic visualization of the gastrointestinal mucosa, allows a moderate and fast identification of early preneoplastic lesions, providing an opportunity of its early histopathological diagnosis.
Díaz Pérez
Julio Alexander
JA
Grupo de Investigación en Patología Estructural, Funcional y Clínica, Universidad Industrial de Santander, Bucaramanga, Colombia. pat_uis@yahoo.com
García Ramírez
Carlos Alberto
CA
Ferreira Bohorquez
Edgar Julián
EJ
Rivero Rendon
Luis Alejandro
LA
Olarte Villamizar
Javier Mauricio
JM
Orozco Vargas
Luis Carlos
LC
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003105:Colombia; D005260:Female; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011230:Precancerous Conditions / Q000473:pathology*; D013274:Stomach Neoplasms / Q000473:pathology*; D055815:Young Adult