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Medicina (B.Aires) ; 73(2): 97-103, abr. 2013. ilus, graf, tab
Article in Spanish | LILACS | ID: lil-694747

ABSTRACT

Los objetivos fueron evaluar la prevalencia de afecciones endometriales en pacientes tratadas con tamoxifeno (TAM) y analizar los aspectos epidemiológicos, ecográficos, histeroscópicos e histopatológicos. Desde enero de 1999 a diciembre 2008 se estudiaron 152 pacientes con cáncer de mama tratadas con TAM (20 mg/día), sintomáticas (con sangrado) o asintomáticas, pre y postmenopáusicas, incluidas en forma consecutiva. El diseño fue prospectivo y observacional. Los métodos diagnósticos usados fueron ecografía transvaginal, histeroscopía y biopsia. Las pacientes fueron seguidas durante 5 años con ecografía cada 12 meses e histeroscopia con biopsia en casos que lo justificaran. Edad: 62.76 ± 10.24 años y tiempo de tratamiento: 36.2 ± 19.9 meses. El adenocarcinoma se observó en 3/87 (3.45%) pacientes con factores de riesgo y en 1/65 (1.54%) sin ellos (RA: 1.91, IC 95% 1.88 a 1.94). Las afecciones benignas se hallaron en 148 pacientes (97.37% y los adenocarcinomas en 4 (2.63%),1 en un pólipo de aspecto benigno. Los 4 se observaron en mujeres postmenopáusicas (2 asintomáticas) con grosor endometrial igual o mayor a 16 mm. El riesgo de cáncer fue significativamente mayor en sintomáticas (2.36 versus 0.42 en asintomáticas). Tres adenocarcinomas se detectaron entre 24 y 48 meses del tratamiento. Recomendamos un seguimiento con ecografía transvaginal de las pacientes asintomáticas, resección de los pólipos evaluando factores de riesgo y tiempo de exposición, en especial luego de los 24 meses. Consideramos aceptable un cut-off = 10 mm en el grosor del endometrio en postmenopáusicas asintomáticas para realizar histeroscopía y biopsia.


The objectives were to evaluate prevalence of endometrial disease in patients treated with tamoxifen (TAM) and analyze the epidemiological, sonographic, hysteroscopic and histopathological findings. From January 1999 to December 2008, 152 breast cancer patients treated with TAM (20 mg/day), symptomatic (with bleeding) or asymptomatic, pre- and postmenopausal, were included consecutively in a prospective and observational follow-up study Diagnostic methods were (TV) transvaginal ultrasound, hysteroscopy and curettage biopsy. TV ultrasound was performed every 12 months for 12 to 60 months. The patients´ age were 62.76 years ± 10.24 the TAM-time: 36.24 ± 19. Adenocarcinoma was observed in 3/87 patients (3.45%) with risk factors and in 1/65 (1.54%) without them (RA 1.91, IC 95% 1.88-1.94). We found benign disease in 148 patients (97.37%) and adenocarcinomas in 4 (2.63%), one within a polyp. The 4 adenocarcinomas were detected in postmenopausal women (2 asymptomatic) with endometrial thicknesses equal or greater than 16 mm. The cancer risk was significantly increased in symptomatic (2.36 versus 0.42 in asymptomatic). Three adenocarcinomas were observed between 24 and 48 months of treatment. In conclusion, we suggest an adequate transvaginal ultrasound monitoring of asymptomatic patients treated with TAM, with removal of polyps, because atypia can be present hidden within, considerin risk factors and exposure time. We suggest as an acceptable cut-off = 10 mm in asymptomatic postmenopausal patients.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Middle Aged , Adenocarcinoma/drug therapy , Breast Neoplasms/drug therapy , Endometrium/drug effects , Selective Estrogen Receptor Modulators/therapeutic use , Tamoxifen/adverse effects , Uterine Diseases/pathology , Adenocarcinoma/diagnosis , Adenocarcinoma/pathology , Biopsy , Endometrium/pathology , Follow-Up Studies , Hysteroscopy , Postmenopause , Prospective Studies , Polyps/chemically induced , Polyps/diagnosis , Polyps/pathology , Uterine Diseases/chemically induced , Uterine Diseases/diagnosis
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