RESUMO
Uterine arteriovenous malformations (AVMs) is a rare but high-risk cause of uterine bleeding. The clinical management of this condition is challenging, as the ultrasound picture can sometimes be unambiguously interpreted. Moreover, in the puerperium in which acquired AVMs are most frequently formed, it is necessary to discuss the correct management in a multidisciplinary and personalized manner. We present two cases of AVMs developing in the puerperium, both with a vaginal delivery and spontaneous and complete secondment. The symptom of onset was an episode of bright red blood loss in the puerperium, on the 14th and 21st postpartum days, respectively. Transvaginal ultrasound showed a hypervascularized lesion in the myometrium with turbulent vascular flow, confirmed by transabdominal ultrasound and angiography. To date, there are no guidelines on the management of MAVs. In our cases we opted for a conservative approach, in order to preserve the fertility of the patient. These experiences reported have the purpose of enriching a literature still sparse on the subject and in the future to be able to represent a fulcrum for official recommendations.
RESUMO
There are several variations of placental shape or implantation. Multilobed placentas are thought to arise due to implantation in areas of decreased uterine perfusion. An example is represented by lateral implantation in between the anterior and posterior walls of the uterus. Other local factors leading to multilobation are implantation over leiomyomas, in areas of previous surgery, in the cornu, or over the cervical os. After implantation, there is preferential growth in areas of superior perfusion and atrophy in areas of poor perfusion. This is called trophotropism. We described a singular case of uterine synechia, where is laid the succenturiate lobe from the anterior to the posterior wall, obstacles fetal head descent in the pelvis. Due of that synechia, a cesarean section is necessary for fetal transverse situation with reverse breech extraction.
