WIDER IMPLICATIONS OF THE FINDINGS
TUBAL ECTOPIC PREGNANCY
Examining a large prospective cohort, we show the value of Days 1–4 serum hCG changes in predicting single-dose methotrexate treatment success in tubal ectopic pregnancy. We recommend that clinicians provide early reassurance to women who have a fall or only a modest (<18%) rise in Days 1–4 serum hCG levels, that their treatment will likely be effective.