Quality control study on negative gynecological cytology in Mexico
作者:
Eduardo Cesar Lazcano‐Ponce,
Patricia Alonso de Ruiz,
Lizbeth Lopez‐Carrillo,
Maria Eugenia Vazquez‐Manriquez,
Mauricio Hernandez‐Avila,
期刊:
Diagnostic Cytopathology
(WILEY Available online 1994)
卷期:
Volume 10,
issue 1
页码: 10-14
ISSN:8755-1039
年代: 1994
DOI:10.1002/dc.2840100104
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: Quality control for Pap tests;Uterine cervix cancer;Kappa concordance coefficient;Population cancer detection;Diagnostic error by the examiner
数据来源: WILEY
摘要:
AbstractAn external evaluation of the quality of diagnosis of gynecological cytology specimens (Papanicolaou or “Pap” tests) in the Cytopathological Laboratory at the Mexico General Hospital was performed, with evaluation of 6,011 Pap tests randomly selected from 31,378 Pap studies previously reported as negative during 1988–1989. These tests were part of the early detection program for cervical cancer run by the Ministry of Health of Mexico City. A quality index for specimens was constructed based on the presence of endocervical cells, mucus, and squamous metaplastic cells. The index of false negatives for the diagnosis of cervical neoplasm in this sample which correspond to diagnostic error by the examiner was 0.18% (11). The constructed quality index revealed that 64.1% of specimens were low quality. The correlation between diagnostic error and low quality was .87. Results indicate that laboratories participating in early detection programs for cervical cancer in developing countries need to implement (1) external evaluation programs for Pap diagnosis; (2) permanent training programs in registration; and (3) monitoring procedures for collection, fixation, and transportation of cytologic materials. © 1994 Wiley‐L
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