O43.2 Morbidly adherent placenta

Name of the Condition

• Morbidly Adherent Placenta

Summary

Morbidly adherent placenta is a condition where the placenta abnormally attaches to the uterine wall, often penetrating or invading the muscle layer. This can lead to significant complications during delivery, including severe bleeding and uterine damage. The condition requires careful prenatal monitoring and specialized management to minimize risks to both mother and fetus.

Causes

The condition arises from abnormal placental implantation, where the placenta fails to separate properly from the uterine wall after delivery. This may occur due to scarring from prior uterine surgery, such as cesarean sections, or other uterine abnormalities that disrupt the normal separation process.

Risk Factors

• Prior uterine surgery, including multiple cesarean deliveries.
• Advanced maternal age.
• Placenta previa (placenta covering the cervix).
• Previous history of morbidly adherent placenta.
• Uterine conditions like fibroids or endometrial scarring.
• Multiparity (having had multiple pregnancies).

Symptoms

• Vaginal bleeding during the third trimester, which may be painless or accompanied by cramping.
• Abnormal placental location noted on prenatal imaging.
• Uterine tenderness or pain during pregnancy.
• Signs of anemia or shock if bleeding occurs.

Diagnosis

Diagnosis is typically made through prenatal ultrasound, which may reveal abnormal placental attachment or invasion. Doppler studies and MRI can further assess the extent of placental involvement. Post-delivery, the diagnosis is confirmed if the placenta fails to detach or if significant bleeding occurs during attempted removal.

Treatment Options

• Planned cesarean delivery with hysterectomy to control bleeding.
• Conservative management with placental retention if bleeding is minimal.
• Blood transfusions and uterine artery embolization to manage hemorrhage.
• Close monitoring for postpartum complications.

Prognosis and Follow-Up

Prognosis depends on the severity of placental invasion and the presence of complications. Most cases require specialized care, and recovery may involve extended hospital stays. Follow-up includes monitoring for infection, anemia, and future pregnancy risks. Future pregnancies may carry higher risks of recurrence.

Complications

• Severe maternal hemorrhage requiring transfusion or hysterectomy.
• Uterine perforation or damage.
• Infection or sepsis.
• Preterm delivery or fetal distress.
• Maternal mortality in severe cases.

Lifestyle & Prevention

• Avoid unnecessary uterine surgeries to reduce scarring.
• Manage conditions like fibroids or endometriosis that may affect the uterus.
• Attend regular prenatal care to detect placental abnormalities early.
• Discuss delivery plans with healthcare providers if prior uterine surgery exists.

When to Seek Professional Help

Seek immediate medical attention for vaginal bleeding, severe abdominal pain, or signs of shock (e.g., dizziness, rapid heartbeat) during pregnancy. If diagnosed, consult a specialist to plan delivery and manage risks.

Tips for Medical Coders

Document the extent of placental adherence (e.g., accreta, increta, percreta) and any associated complications. Include details of prior uterine surgeries or conditions that may have contributed to the diagnosis. Ensure coding aligns with clinical findings and supports the need for specialized management.