[Intrauterine hematoma in threatened abortion].

In order to demonstrate the consequences of intrauterine haematoma demonstrated by ultrasound in hospitalised patients with imminent abortion, the course of pregnancy and delivery in patients with demonstrated intrauterine haematoma and patients in whom intrauterine haematoma could not be demonstrated were compared retrospectively. Intrauterine haematoma was demonstrated in 29% of patients with immiment abortion in The Department of Gynaecology and Obstetrics in Herlev Hospital. Patients with intrauterine haematoma were hospitalised more frequently and for more prolonged periods for imminent abortion and for imminent premature delivery. On the other hand, no differences were found in the frequencies of abortion, the birth weights, gestational age on delivery, number of preterm deliveries, frequencies of Caesarean section and adherent placenta between the two groups. Therapeutic bias may have been the cause of the increased number of days of hospitalisation in patients with intrauterine haematoma demonstrated by ultrasound.