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  • 1995-1999  (2)
  • 1
    ISSN: 1573-7217
    Schlagwort(e): adjuvant therapy ; endometrial biopsy ; endometrial cancer ; tamoxifen ; ultrasonography
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The need for endometrial surveillance in breast cancer patients undergoing adjuvant treatment with tamoxifen is still controversial. In this study, 164 asymptomatic breast cancer patients (110 on treatment with tamoxifen, 20 mg/day, and 54 controls) were examined with pelvic ultrasound and endometrial biopsy. No differences in ultrasound and biopsy findings were observed in the pre- and perimenopausal group between patients treated with tamoxifen and controls. Postmenopausal patients on tamoxifen had a significantly thicker endometrium (mean ± SD, 7.2 ± 8.5 vs. 1.5 ± 4.3 mm, p=0.00002) and significantly larger uterine volume (mean ± SD, 63.2 ± 39.9 vs. 43.7 ± 38.8 cm3, p=0.0001) than controls. Fifty-four percent of patients on tamoxifen had an endometrial thickness ≥ 5 mm, often with multiple irregular sonolucencies suggesting the presence of cysts. Ultrasound findings, however, did not correlate with the presence of endometrial abnormalities on biopsy, and no endometrial cancer or atypical hyperplasia were found. This lack of correlation makes questionable the use of routine sonography in asymptomatic breast cancer patients on tamoxifen. Obtaining routine endometrial samples, on the other hand, may be difficult in some patients because of cervical stenosis or refusal. Until the benefits of endometrial surveillance will be proved, asymptomatic patients should not be submitted routinely to ultrasound examination or biopsy, but encouraged to report promptly any abnormal vaginal bleeding.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1573-7217
    Schlagwort(e): breast ; bone mineral density ; neoplasms ; bone remodeling ; chemoprevention ; retinoids
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Prolonged administration of natural or synthetic retinoids has been associated with significant skeletal abnormalities, including osteoporosis. We studied the effects of the synthetic retinoid fenretinide (N-4-hydroxyphenylretinamide, or 4-HPR) administered for a mean of 40 months on bone mineral density and metabolism in 66 consecutive women with early breast cancer belonging to a secondary prevention trial. The mean (±SD) bone mineral density at the distal and ultradistal forearm were, respectively, 0.61±0.08 and 0.30±0.05 g/cm2 in 33 treated women and 0.62±0.07 and 0.29±0.07 g/cm2 in 33 control women (p = ns for both). Also, no significant difference was observed in markers of bone formation such as bone alkaline phosphatase and osteocalcin, nor in urinary bone resorption markers such as calcium, hydroxyproline, and type I bone collagen cross-linked N-telopeptide (NTx). However, a border-line higher excretion of urinary calcium and NTx was found in the 4-HPR group after adjustment for menopausal status. We conclude that prolonged administration of 4-HPR is not associated with significant alterations of bone mineral density of the forearm. However, a trend towards an increase in bone resorption markers suggests the need for further assessment at different skeletal sites.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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