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Biomedical subjects

S Pilnik

Publications and source records attributed to S Pilnik.

7 recordsLinked to original sources

A comparative study of two hormone replacement therapy regimens on safety and efficacy variables.

OBJECTIVE: To assess the effect of tibolone on endometrial safety, plasma estradiol concentrations, lipid metabolism and climacteric symptoms in comparison to sequential conjugated equine estrogens and medroxyprogesterone acetate in postmenopausal women. METHODS: In a randomised, open-label, 6-cycle, group-comparative study, the effects on the aforementioned parameters were studied with tibolone 2.5 mg/day (N = 13) continuously, and with conjugated equine estrogens 0.625 mg/day continuously, combined with medroxyprogesterone acetate 5 mg/day (N = 11) (CEE/MPA) sequentially, during 12 days of each 28-day cycle. Within-group statistical analysis was performed with Student's t-test for paired samples, whereas between-group statistics were performed using the Student's t-test for independent groups. RESULTS: Cytological evaluation revealed no endometrial stimulation in either group. In the tibolone group, there were no effects on estradiol levels, whereas in the CEE/MPA group, an increase in total and non-SHBG-bound estradiol plasma levels was reported. In the tibolone group, there were significant decreases in plasma total cholesterol, triglycerides, HDL-cholesterol and VLDL-cholesterol, whereas no significant changes in LDL-cholesterol and IDL-cholesterol were reported. In the CEE/MPA group there were significant decreases in plasma total cholesterol, HDL-cholesterol and LDL-cholesterol, whereas there were no significant changes in triglycerides, IDL-cholesterol and VLDL-cholesterol. Climacteric symptoms, particularly vasomotor episodes, decreased similarly in both groups. CONCLUSIONS: Both tibolone and CEE/MPA were safe with respect to effects on the endometrium and both treatments induced changes in the plasma profiles of certain lipid and lipoprotein parameters. However, the overall clinical implications of these changes are unknown. Finally, both regimens were equally effective in the treatment of climacteric symptoms.

Anabolic Agents↗

The use of the hemostatic scalpel in operations upon the breast.

Advantages of the hemostatic scalpel include: 1, decrease in blood loss from small vessels; 2, minimizes damage to the tissue as compared with other thermocoagulating instruments and, thus, improved healing of the wound; 3, eliminates muscle stimulation and, by maintaining a dry surgical field, shortens the operative procedure, and 4, may seal lymphatic vessels and, therefore, lower the incidence of local and regional metastases.

Biopsy↗

Family history, oral contraceptive usage, and breast cancer.

When breast cancer patients were grouped according to their family history of breast cancer striking differences were found in age distribution. Thus, the proportion of cases less than 45 years of age was grandmother greater than aunt greater than mother greater than FH-negative greater than sister. A similar FH-related sequence was observed in regard to current OC usage among breast cancer patients less than 45 years of age. It also appeared that current oral contraceptive (OC) usage increased the risk of invasive breast cancer among grandmother- or aunt-positive women while decreasing the risk among FH-negative women. There are important practical and conceptual reasons for further studies of the influence of interactions between age, OC usage and family history on the stepwise development of breast cancer.

Adult↗