[Doppler ultrasound images of the uterine artery and uterine involution in normal puerperium].

Serial sonographic studies of the involution of the uterus and Doppler ultrasound studies of the uterine artery blood flow were done with a pulsed Doppler apparatus on 102 patients with uncomplicated pregnancy, normal vaginal develivery, and normal puerperal course on the 2nd and 4th post-partum days and 1 and 2 months post partum. Length of the uterus, anteroposterior and transversal uterine diameter, and diameter of the myometrium on the anterior and posterior uterine wall underwent main involution during the 1st month post partum and showed only a slight decrease during the 2nd month post partum. Systolic/diastolic ratio and resistance index of the uterine artery increased slightly, but not significantly, between the 2nd and 4th post-partum days, but significantly until the end of the 1st month post partum. Until the end of the 2nd month post partum systolic/diastolic ratio and resistance index of the uterine artery showed, although the involution of the uterus was largely completed, a further significant increase.