[Chemoresistance in ovarian cancer. State of the art and future prospects]. / La chemioresistenza nel carcinoma dell'ovaio. Stato dell'arte e prospettive future.

Aim of this study was to provide a review of the basic mechanisms of drug resistance in ovarian cancer and novel strategies to modulate drug resistance. Relevant articles published through August 1999 were identified using the Medline data base. Publications identified by the search were reviewed and evaluated critically for their relevance to drug resistance in ovarian cancer. Ovarian cancer patients have high response rates to initial chemotherapy after cytoreductive surgery. However, most will develop resistance to chemotherapy during the course of their treatment. There are multiple mechanisms resulting in drug resistance. Strategies to modulate drug resistance include dose intensity, various pharmacologic agents, and gene therapy.

[Comparative study of diagnostic hysteroscopy and transvaginal ultrasonography in patients with abnormal uterine hemorrhage during the peri- and post-menopausal period]. / Studio comparativo tra isteroscopia diagnostica ed ecografia transvaginale in pazienti con sanguinamento uterino anomalo in epoca peri- e postmenopausale.

BACKGROUND: The aim of this study was to determine the diagnostic value of hysteroscopy and transvaginal ultrasonography in patients with abnormal uterine bleeding (AUB) in the peri and postmenopausal period. METHODS: 302 patients with AUB, underwent hysteroscopy and in 86 cases, also a transvaginal ultrasonography before hysteroscopy was performed. Results were compared with the histological diagnosis. RESULTS: The diagnostic accuracy of hysteroscopy was very high in the cases of endometrial carcinoma (sensibility 100%, specificity 99%), and lower in the cases of endometrial hyperplasia (sensibility 69%, specificity 72%) and endometrial atrophy (sensibility 29% and specificity 97%). Sonography proved to be less reliable in the diagnosis of endometrial pathology (carcinoma: sensibility 57%, specificity 100%, hyperplasia: sensibility 62.5% specificity 63%). The results of this study show that sonography may be used as a first choice diagnostic test in the investigation of women with AUB. CONCLUSIONS: Hysteroscopy represent a second diagnostic step for achieving a proper histologic diagnosis.

[Epidemiological and etiological aspects of excretory azoospermia]. / Aspetti epidemiologici ed eziologici delle azoospermie escretorie.

The average spermatozoa concentration in the ejaculate fell progressive even if sharply in the last 50 years. The azoospermia, described as the complete spermatozoa absence in the sperm, has a variable incidence between 10 and 20% in the clinical picture of the male infertility. The authors outline an etiological classification of the azoospermia and analyse the epidemiological and etiological aspects of the obstructive azoospermia.