O02.0

Clinical Causes: Chromosomal abnormalities in the fertilized egg Genetic factors influencing embryonic development Maternal health issues such as hormonal imbalances Uterine abnormalities or structural issues Environmental exposures or radiation Infections during conception or early pregnancy

Key Symptoms: Vaginal bleeding or spotting Lower abdominal cramping or pain Absence of fetal heartbeat on ultrasound Expired pregnancy symptoms such as nausea or breast tenderness diminish Pelvic pressure or fullness

Diagnosis Path: Diagnosis primarily involves ultrasound examinations, which reveal a gestational sac without an embryo in the case of a blighted ovum. Blood tests measuring levels of human chorionic gonadotropin (hCG) can support diagnosis, showing abnormal or declining hormone levels. In some instances, a dilation and curettage (D&C) procedure may be performed to remove pregnancy tissue and confirm diagnosis. Further supportive tests might include genetic analysis to examine potential chromosomal causes or uterine evaluations if structural abnormalities are suspected.

Treatment Protocols: Treatment options depend on individual circumstances and may include: - Expectant management: allowing the body to naturally expel pregnancy tissue - Medical management: use of medications such as misoprostol to induce uterine contractions - Surgical management: dilation and curettage (D&C) to remove remaining tissue Follow-up care involves monitoring hormone levels until they return to pre-pregnancy levels to ensure complete resolution. Emotional support and counseling are often recommended due to the emotional impact of pregnancy loss. In cases of molar pregnancy, additional follow-up may involve blood tests to detect rare complications such as gestational trophoblastic disease.