TITLE:
Correlation between hCG Kinetics and the Effectiveness of Methotrexate in the Management of Ectopic Pregnancies
AUTHORS:
Oum Elkheir Soltana Senouci, Fadl-Allah Aboubekr, Hind Bedjaoui, Mimouna Messaoud, Ikram Tachema
KEYWORDS:
Methotrexate, Ectopic Pregnancy, hCG
JOURNAL NAME:
Open Access Library Journal,
Vol.13 No.1,
January
5,
2026
ABSTRACT: Purpose: To evaluate a therapeutic monitoring strategy for ectopic pregnancies treated with methotrexate (MTX) injection based on hCG level kinetics, in order to identify patients at low risk of treatment failure. Materials and Methods: This series of 14 cases allowed us to evaluate the success rate of therapeutic management with a single injection of methotrexate (MTX), based on the kinetics of hCG levels. The protocol stipulated that if the decrease was greater than 20% between days 1 and 4, follow-up was limited to an hCG measurement one month later. Results: Among the 14 patients treated, the overall success rate of MTX treatment was 85.71%. Conclusion: Our protocol allows us to select patients at low risk of failure of single-dose MTX treatment, and to offer them less restrictive monitoring.