OB/GYN
A 28-year-old woman G3 P0020 at 5 weeks' gestation presents with vaginal bleeding associated with some blood…
A 28-year-old woman G3 P0020 at 5 weeks' gestation presents with vaginal bleeding associated with some blood clots that has started 3 hours ago. She had been diagnosed with cervical incompetence in her 2 prior second-trimester abortions. A history of dilatation and curettage in her last abortion declared. On examination; the cervical os is open and no on-going bleeding. Which of the following is the most likely cause of her current diagnosis of vaginal bleeding?
الشرح
Core Concept: First-trimester spontaneous abortion (miscarriage) is most frequently caused by fetal chromosomal abnormalities, particularly autosomal trisomies, polyploidy, or monosomy X.
Clinical Presentation:
- Vaginal bleeding ranging from spotting to heavy bleeding with clots.
- Pelvic cramping or lower back pain.
- Open or closed cervical os depending on the stage of the miscarriage (threatened, inevitable, incomplete, complete).
- Complications: Hemorrhage, infection (septic abortion), or retained products of conception.
Diagnosis:
- First-line: Transvaginal ultrasound to determine pregnancy location, viability, and gestational age, alongside quantitative beta-hCG levels.
- Gold standard: Karyotyping or chromosomal microarray analysis of the products of conception (POC) to identify the specific genetic anomaly.
Management:
- Acute: Hemodynamic stabilization, Rh(D) immune globulin administration if the mother is Rh-negative.
- Definitive: Expectant management, medical management (e.g., misoprostol), or surgical evacuation (suction curettage) depending on patient preference, bleeding severity, and clinical stability.