[Pregnancy in women wearing a heart valve prosthesis: 5 case histories (author's transl)].

The study of a personal series of five pregnancies and the review of 130 cases published enabled us to recall the physiological, clinical and therapeutic sides of the "pregnancy-heart valve prothesis" combination. Maternal mortality remains at 3%; morbidity, essentially in the form of haemorragic or thrombo-embolic accidents, comes to 45%. We insist on the importance of a pregnancy planned and accepted both by the cardiologist and the obstetrician as contraception is a difficult problem with these patients, classical oestroprogestative methods and intra-uterine devices being too much of a risk. An intake of a progestagen in small doses combines efficiency with innocuity.