[Results from the Registry of Complications in Users of Hormonal Contraception in 1998].
OBJECTIVE
To collect data on the use of hormonal contraception in the Czech Republic in 1998.


METHODS
Department of Gynaecology and Obstetrics, Charles University School of Medicine and General University Hospital Prague.


METHODS
A total of 2,134 questionnaires were sent to Czech gynaecologists in spring 1999. A total of 418 answers were processed.


RESULTS
The estimated number of users presenting in gynaecologist's offices participating in our project was 237,099 women. The most often prescribed contraceptives were monophasic products (54.38%) containing 30-35 micrograms of ethinyl-estradiol (55.21%) with new progestins (53.8%) (norgestimate, gestoden, desogestrel). Regular follow-up of hormonal contraceptive users included the following examinations/tests: blood count in 8.5% offices, ultrasound examination in 8.0% offices, lipid spectrum in 49.8% offices, blood pressure in 74% offices, colposcopy in 97.6% offices, oncological cytology in 98.4% offices and liver tests in 77.1% gynecologist's offices. Only 10.85% of the gynaecologists did not perform lipid tests, almost 20% gynaecologists measured blood pressure only selectively in some users. 80 cases of cardiovascular disease were diagnosed, a figure consistent with an 0.0325% incidence of users. The most frequent complication was deep venous thrombosis (58 cases). The subgroup of women experiencing a cardiovascular event was not characterized by older age, higher body weight, more frequent smoking, or use of products with a higher oestrogen contents.


CONCLUSIONS
There were major differences among gynaecologists in the follow-up of hormonal contraception users. The pattern of the products used varied markedly by regions. The number of diagnosed cardiovascular diseases was very low. Users with a previous a cardiovascular event were only exceptionally carriers of a risk factor.
Cibula
D
D
Gynek.-porod. klinika 1. LF UK a VFN, Praha.
Zivný
J
J
Horejsí
J
J
Hill
M
M
D002318:Cardiovascular Diseases / Q000139:chemically induced; D003278:Contraceptives, Oral, Hormonal / Q000009:adverse effects*; D018153:Czech Republic; D005260:Female; D006801:Humans; D012042:Registries; D011795:Surveys and Questionnaires; D020246:Venous Thrombosis / Q000139:chemically induced
D003278:Contraceptives, Oral, Hormonal