[How has the Paris System contributed to urine cytology? Evaluating the contribution of the Paris System to urine cytology. A comparative study of the Paris System and the Papanicolaou method in a tertiary centre].

Autor:	Ulldemolins Aznar P; Universitat Jaume I, Castellón de la Plana, Castellón, España., Muñoz Vicente E; Servicio de Anatomía Patológica, Hospital General Universitari de Castellón, Castellón de la Plana, Castellón, España., Roselló-Sastre E; Servicio de Anatomía Patológica, Hospital General Universitari de Castellón, Castellón de la Plana, Castellón, España. Electronic address: rosello_est@gva.es.
Jazyk:	Spanish; Castilian
Zdroj:	Revista espanola de patologia : publicacion oficial de la Sociedad Espanola de Anatomia Patologica y de la Sociedad Espanola de Citologia [Rev Esp Patol] 2022 Apr-Jun; Vol. 55 (2), pp. 125-134. Date of Electronic Publication: 2022 Feb 11.
DOI:	10.1016/j.patol.2021.11.002
Abstrakt:	Introduction and Objectives: The Paris System (PS) has replaced the classical Papanicolaou System (PapS) in reporting urine cytology, due to its improved sensitivity and negative predictive value (NPV) without loss of specificity. Furthermore, it has enabled the risk of malignancy to be established in each cytological category. The aim of this study is to compare the Paris System with previous results and determine the changes in sensitivity, specificity, positive predictive value, NPV and risk of malignancy in our centre, MATERIALS AND METHODS: Evaluation of the diagnostic power of urine cytology by means of a retrospective cohort study, comparing two series of 400 cytological studies, one using the Papanicolaou System and the other the Paris System. Results: In the detection of high-grade urothelial carcinoma, Paris System has better specificity (93.82% PapS vs 98.64% PS; P=.001) and PPV (39.5% PapS vs 70.6% PS; P=.044) than Papanicolaou System, without changes in sensitivity (53.5% PapS vs 37.5% PS; P=.299) or NPV (96.4% PapS vs 94.8% PS; P=.183). The risk of malignancy for the atypical category increases from low to high levels (1.6% PapS vs 40.0% PS; P=.001); the other categories showed no significant statistical changes. Conclusion: The Paris System improves specificity and positive predictive value and establishes a better indication of risk of malignancy for each category, enabling specific clinical management in each case. (Copyright © 2022 Sociedad Española de Anatomía Patológica. Publicado por Elsevier España, S.L.U. All rights reserved.)
Databáze:	MEDLINE
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