Effectiveness and mechanism of action of desmopressin in the treatment of copper intrauterine device-related menorrhagia: a pilot study.

BACKGROUND: Desmopressin, a synthetic analogue of the natural hormone vasopressin, stimulates endogenous haemostasis and exerts a powerful myometrial and vasoconstrictor action in a variety of pharmacological preparations. Both mechanisms of action may have therapeutic value for the treatment of intrauterine device (IUD)-related menorrhagia, which is believed to be caused not only by altered local haemostasis but also-according to a new hypothesis-by decreased vascular uterine resistance. The aim of this prospective study was to evaluate the effect of vasopressin drug on menstrual blood loss and on changes, if any, in uterine flow impedance. Mefenamic acid, which is commonly used to treat IUD-related menorrhagia, was administered as a comparison. METHODS: Twenty-four women with IUD-induced menorrhagia were recruited and randomly allocated to treatment with either desmopressin or mefenamic acid. Menstrual blood loss (measured by pictorial blood loss assessment chart) and uterine artery resistance (measured with transvaginal colour Doppler) performed in two pretreatment periods were compared with 3-month treatment periods. RESULTS: Menstrual blood loss was significantly reduced in both treatment groups. In the desmopressin group, the effect was clinically useful in all subjects, but in the mefenamic group menstrual blood loss was consistently menorrhagic in two patients. No significant differences were observed in the uterine artery pulsatility index before and during treatment. CONCLUSIONS: Desmopressin may be a useful therapeutic tool for many women with IUD-related menorrhagia. Its mechanism of action lies in an ability to enhance local haemostasis, without affecting uterine blood flow.

The effect of a levonorgestrel-releasing intrauterine device in the treatment of myoma-related menorrhagia.

In this open observational study we evaluated the effectiveness of a levonorgestrel-releasing intrauterine device (LNG-IUD) in the treatment of myoma-related menorrhagia. Nineteen patients with recurrent menorrhagia lasting more than 3 months and with fibromyomatosus uterus were treated for 12 months with a LNG-IUD releasing 20 micro g/day of levonorgestrel. Menstrual blood loss, measured objectively by the pictorial blood loss assessment chart score (PBAC), level of serum hemoglobin and pattern of uterine bleeding were recorded at 3, 6, 9 and 12-month follow-up visits. Median monthly PBAC score during the two menstrual cycles before treatment was 310. After LNG-IUD, the PBAC score gradually decreased from a median value of 186 at 3 months to a median value of 155, 108 and 96 at 6, 9 and 12 months of treatment, respectively. Despite the statistically significant reduction of PBAC score, persistent menorrhagia, defined as a monthly PBAC score of 100 or higher, was observed at 12 months in 14 patients, whereas only one woman was amenorrheic and 4 were hypomenorrheic. In conclusion our study demonstrates the clinical reduced effectiveness of LNG-IUD in the treatment of myoma-related menorrhagia.

Screening for endometrial adenocarcinoma.

A careful evaluation of endometrial adenocarcinoma risk factors has allowed the AA. to suggest an integrated screening program, including cytology, hysteroscopy and guided biopsy. First results of this program are then described.

An uncommon case of gonadoblastoma.

Gonadoblastoma occurs almost entirely in patients with pure mixed gonadal dysgenesis or in male pseudohermaphrodites. A report of a patient with monolateral gonadoblastoma who sought consultation for primary amenorrhea is presented. Telarche and adrenarche occurred spontaneously at age 12. No signs of clitoromegaly or hirsutism were present. Endoscopic examination and biopsy specimens revealed absence of uterus, monolateral gonadoblastoma and controlateral teratoma in normally developed gonads. Serum gonadotrophins, estrogens and progesterone levels showed a biphasic secretion pattern. 46, XX karyotype was found on peripheral blood cells, skin fibroblasts and ovarian tissue.