Invasión perineural en la biopsia prostática transrectal: ¿Aumenta la probabilidad de cáncer extraprostático? / Perineural invasion in transrectal prostatic biopsy: is there an increase of extracapsular disease?
Rev. chil. urol
;
74(1): 30-34, 2009. tab, graf
Article
in Spanish
| LILACS
| ID: lil-562706
RESUMEN
Introducción:
La invasión perineural en biopsia transrectal se ha relacionado con un cáncer prostático de mayor estadío patológico. Materiales ymétodos:
Para determinar si la invasión perineural es un factor de riesgo de enfermedad extraprostática analizamos las biopsias transrectales y de prostatectomías radicales durante 11 años. Se agruparon según grupos de riesgo y se estimó Likelihood ratio (LR) de la invasión perineural como predictor de etapa pT3.Resultados:
De 269 pacientes, 5,97 por ciento (16) presentaba invasión perineural en la biopsia transrectal. De estos 87,5 por ciento presentaba un estadio pT3, comparado a 41 por ciento del total. La invasión perineural tiene un LR (+) de 10,05 para enfermedad extraprostática. Cuando está presente la probabilidad de enfermedad pT3 aumenta de 20,1 por ciento a 71,6 por ciento en el grupo de riesgo bajo, de 54 por ciento a 92,1 por ciento en el riesgo medio y de 59,7 por ciento a 93,1 por ciento en el riesgo alto.Conclusiones:
La invasión perineural en la biopsia prostática transrectal es un factor de riesgo de cáncer extraprostático.ABSTRACT
Introduction:
Perineural invasion in transrectal biopsy specimens correlates with higher pathological stages in prostate cancer. Material andmethods:
To determinate if perineural invasion is a risk factor for non organo-confined disease we analyzed 269 consecutive transrectal biopsy and radical prostatectomy specimens over the period of eleven years. They were categorized in risk groups and the Likelihood ratio (LR) of the perineural invasion as a predictor of phase pT3 was calculated.Results:
Of 269 patients, 5.97 percent (16) had a perineural invasion in a transrectal biopsy. Of those patients, 87.5 percent had phase pT3, compared to 41 percent of the total. The perineural invasion has an LR (+) 10,05 for non organo-confined disease, when its present the LR of pT3 disease increases from 20.1percent to 71.6 percent in the low-risk group, from 54 percent to 92.1 percent in the medium risk and 59.7 percent to 93.1 percent in the high risk group.Conclusions:
The perineural invasion in transrectal prostate biopsy is a risk factor for non organo-confined disease.
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Index:
LILACS (Americas)
Main subject:
Prostatic Neoplasms
/
Biopsy
/
Neoplasm Invasiveness
Type of study:
Diagnostic study
/
Etiology study
/
Observational study
/
Prognostic study
/
Risk factors
Limits:
Adult
/
Humans
/
Male
Language:
Spanish
Journal:
Rev. chil. urol
Journal subject:
Urology
Year:
2009
Type:
Article
Affiliation country:
Chile
Institution/Affiliation country:
Hospital Regional Valdivia/CL
/
Universidad Austral de Chile/CL
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