Ectopic Pregnancy: The Daily PANCE Blueprint

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Ectopic Pregnancy: The Daily PANCE Blueprint

A 28-year-old woman at about 6 weeks by her last menstrual period presents with mild right lower quadrant pain and light vaginal spotting. She is hemodynamically stable — blood pressure 118/74, heart rate 82 — with mild right adnexal tenderness and no peritoneal signs. Her serum β-hCG is 1,800 mIU/mL, and transvaginal ultrasound shows no intrauterine pregnancy and a 2-cm right adnexal mass without fetal cardiac activity. She has reliable follow-up. Which of the following is the most appropriate management?

A. Immediate exploratory laparotomy
B. Single-dose intramuscular methotrexate
C. Expectant management with a repeat β-hCG in 1 week
D. Dilation and curettage
E. Broad-spectrum antibiotics

Answer and topic summary

The answer is B. Single-dose intramuscular methotrexate

A positive β-hCG with an empty uterus and an adnexal mass on transvaginal ultrasound is an ectopic pregnancy until proven otherwise. Because she is hemodynamically stable, the ectopic is small (<3.5–4 cm) and unruptured with no fetal cardiac activity, her β-hCG is relatively low (<5,000), and she can follow up reliably, she is an excellent candidate for medical management with single-dose IM methotrexate, which stops the trophoblastic tissue from growing. The trap is jumping to surgery — laparoscopy or laparotomy is for the unstable or ruptured patient, or when methotrexate is contraindicated or fails. Expectant management risks rupture, D&C treats an intrauterine process, and antibiotics treat infection.

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Covered under ⇒ PANCE Blueprint Reproductive ⇒ Pregnancy ⇒ Ectopic Pregnancy

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