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Ectopic pregnancy: evolution after treatment with transvaginal methotrexate
1Department of Diagnostic Radiology, McGill University, Montreal, Que, Canada.
Radiology
|December 1, 1992
Summary
Transvaginal methotrexate effectively treated ectopic pregnancies (EPs) in 76% of patients. Initial increases in tubal size and vascularity during treatment are normal healing signs, not causes for concern.
Area of Science:
- Reproductive Medicine
- Gynecologic Surgery
- Medical Imaging
Background:
- Ectopic pregnancy (EP) remains a significant cause of early pregnancy morbidity.
- Management options for EP include medical treatment, surgical intervention, and expectant management.
- Methotrexate is a primary medical treatment for stable EPs.
Purpose of the Study:
- To evaluate the efficacy and ultrasonographic (US) changes associated with transvaginal methotrexate treatment for ectopic pregnancy (EP).
- To assess the correlation between US findings and beta-human chorionic gonadotropin (beta-hCG) levels during treatment.
- To clarify the significance of tubal size and vascularity changes during medical management of EP.
Main Methods:
- A prospective study involving 25 patients diagnosed with ectopic pregnancy (EP).
- Treatment administered via transvaginal injection of methotrexate.
- Serial monitoring of beta-human chorionic gonadotropin (beta-hCG) levels and serial ultrasonography (US), including color Doppler, to assess tubal changes.
Main Results:
- Nineteen out of 25 patients (76%) responded positively to transvaginal methotrexate treatment.
- Six patients (24%) required surgery due to persistent symptoms or bleeding.
- Ultrasonographic resolution of EP lagged behind the decline in beta-hCG levels in all patients.
- Increased tubal diameter (mean 2.22 cm to 3.84 cm) and vascularity were observed in a significant proportion of responders (63% and 68%, respectively).
- Increased tubal size and vascularity correlated with a healing process, even with falling beta-hCG levels.
Conclusions:
- Transvaginal methotrexate is an effective treatment for ectopic pregnancy (EP), achieving high success rates.
- Observed increases in tubal size and vascularity during treatment are indicative of a normal healing response and do not necessitate surgical intervention.
- Close monitoring of beta-hCG levels and US findings is crucial for managing patients undergoing medical treatment for EP.