NATIONAL HARBOR, MARYLAND — Rates of maternal morbidity in individuals with placenta accreta were similar with alternative strategies to cesarean hysterectomy regardless of the severity of the condition, based on data from 60 individuals.
Currently, the recommended management strategy for placenta accreta spectrum (PAS) is a cesarean hysterectomy, but data are lacking on alternative strategies, especially for individuals wishing to keep their uterus and potentially preserve fertility, Farah H. Amro, MD, of the University of Texas Health Science Center at Houston McGovern Medical School said in a presentation at the Pregnancy Meeting (abstract 70).
Alternative options are being studied worldwide, including delayed hysterectomy (typically performed at 4-6 weeks postpartum), Dr. Amro said at the meeting, which was sponsored by the Society for Maternal-Fetal Medicine.
At UT Houston, delayed hysterectomy is performed for more aggressive PAS that involves parametrial invasion, and the placenta left in situ until resorption/passage for those wishing to keep their uterus, Dr. Amro said in an interview.
In a cohort study at UT Houston, a level IV academic center, Dr. Amro and colleagues evaluated outcomes in 60 individuals with suspected PAS who were given three management options after extensive counseling. Of these, 29 opted for a cesarean hysterectomy (CH); 16 opted for delayed interval hysterectomy (IH) performed 4-6 weeks after delivery; and 15 individuals with a preference for uterine preservation were assigned to conservative management.
The study occurred between January 2020 and July 2023. The primary outcome was composite maternal morbidity, which was further divided into composite acute morbidity (within 24 hours from cesarean delivery or hysterectomy) and composite delayed morbidity (24 hours or more postoperatively). Secondary outcomes included total estimated blood loss, need for blood transfusion, unplanned hospital readmission, and pathology diagnosis.
Overall maternal morbidity rates were 55%, 56%, and 53% in the CH, IH, and CM groups, respectively, although those who were planned for IH and CM had more severe PAS.
The planned procedure was performed in 90% of the CH patients. Approximately 20% of patients in the IH and CM groups underwent unplanned procedures. No cases of sepsis or maternal death occurred, and uterine infection rates were 0%, 6%, and 13% in the CH, IH, and CM groups, respectively.
Patients in the CM and IH groups were significantly less likely to require blood transfusions than those in the CH group. In addition, composite delayed morbidity (24 hours or more after surgery) was similar among the groups, with rates of 31%, 38%, and 33% for CH, IH, and CM, respectively (P = .94). These results are important, given the concerns regarding leaving a placenta in situ after cesarean delivery, said Dr. Amro.
The findings were limited by several factors including the use of data from a single site, the lack of randomization, patient compliance, and cost effectiveness. However, the results were strengthened by the diverse population and comparison of novel approaches that aren’t frequently utilized In the United States, as well as the large volume of PAS cases treated in a relatively short time frame, Dr. Amro said.