Critical Care Medicine
Gastrointestinal Emergencies: Ectopic Pregnancy
1. Description of the problem
What every clinician needs to know
Ectopic pregnancy needs to be considered in adolescent women with severe abdominal pain. Symptoms often appear 6-8 weeks after the last menstrual period and include abdominal pain and occasionally vaginal bleeding. The most significant risk is a ruptured ectopic pregnancy.
Abdominal pain in a female of reproductive age
Key management points
1. Stabilization of hemodynamics
2. Surgical management unless non-emergent, in which case methotrexate as medical management can be considered.
Transvaginal ultrasound - can be used to detect an ectopic or intrauterine pregnancy.
Human chorionic gonadotropin (hCG) - may be helpful, although interpretation can be difficult and requires serial hCG levels in the absence of a transvaginal ultrasound.
A gestational sac should be detected by transvaginal ultrasound if the hCG is greater than 800-1000 IU/L, and thus the abscence of a sac with higher hCG is concerning for an ectopic pregnancy.
4. Specific Treatment
Medical therapy - methotrexate may be used for ectopic pregnancies and has been shown to be as effective as surgical treatment; however, most emergency situations require a surgical approach.
Surgical therapy - many ectopic pregnancies require a surgical approach to prevent rupture, especially when presentation is late.
The prognosis for an ectopic pregnancy is excellent if treated before rupture. Long-term prognosis depends most on any associated complications.
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