Placenta accreta: changing clinical aspects and outcome

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine

Background:

• Placenta accreta diagnosis and management have evolved.
• Understanding historical clinical presentations is crucial for comparative analysis.

Purpose of the Study:

• To determine if the clinical presentation of placenta accreta has changed.
• To analyze cases from a specific historical period (late 1970s).

Main Methods:

• Retrospective review of 22 placenta accreta cases.
• Data collected from Los Angeles County/University of Southern California Medical Center (January 1975 - May 1979).
• Analysis of patient demographics, obstetric history, surgical interventions, and outcomes.

Main Results:

• Incidence of clinically diagnosed placenta accreta: 1 in 2562 deliveries.
• Pathologically confirmed placenta accreta incidence: 1 in 4027 deliveries.
• Associated placenta previa in 63.6% of cases; 66.7% of these had prior Cesarean sections.
• Mean maternal age: 29.5 years; Mean gravidity: 3.4; Mean parity: 2.
• Hysterectomy performed in 14 patients; conservative management in 8.
• Maternal mortality rate: 4.5% (1 death); no perinatal mortality.

Conclusions:

• The clinical picture of placenta accreta in the late 1970s showed a lower incidence and higher parity compared to current trends.
• Associated placenta previa and prior Cesarean sections were significant factors.
• Management strategies included both hysterectomy and conservative approaches.
• Outcomes have improved, with decreasing maternal and perinatal mortality rates over time.