Fertility and sterility · 2006
Establishing a human chorionic gonadotropin cutoff to guide methotrexate treatment of ectopic pregnancy: a systematic review.
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Menon Seema, Colins John, Barnhart Kurt T
Аннотация
OBJECTIVE: Successful medical management of an ectopic pregnancy is inversely associated with initial hCG level. The purpose of this publication is to assess whether there is a level of hCG above which failure rate substantially increases.
DESIGN: A systematic review and summary analysis was performed, including studies reporting methotrexate treatment outcomes as stratified by various hCG ranges.
SETTING: Academic medical center.
PATIENT(S): Review of published information regarding patients treated with methotrexate.
INTERVENTION(S): None.
MAIN OUTCOME MEASURE(S): Success and failure rate of medical management.
RESULT(S): Five observational studies, including 503 women, were found that reported successes in using single-dose methotrexate stratified by initial hCG concentration. Failure rates increase with increasing hCG levels. A substantial and statistically significant increase in failure rates is seen when comparing patients who have initial hCG levels of >5,000 mIU/mL with those who have initial levels of <5,000 mIU/mL (odds ratio: 5.45; 95% confidence interval: 3.04, 9.78). The failure rate for women who had an initial concentration between 5,000 and 9,999 mIU/mL was significantly higher than that for those who had initial levels between 2,000 and 4,999 mIU/mL (odds ratio: 3.76; 95% confidence interval: 1.16, 12.33).
CONCLUSION(S): Results support a substantial increase in failure of medical management with single-dose methotrexate when the initial hCG is above 5,000 mIU/mL. Methotrexate should be used with caution in patients with ectopic pregnancy who present with hCG levels above this level.
DESIGN: A systematic review and summary analysis was performed, including studies reporting methotrexate treatment outcomes as stratified by various hCG ranges.
SETTING: Academic medical center.
PATIENT(S): Review of published information regarding patients treated with methotrexate.
INTERVENTION(S): None.
MAIN OUTCOME MEASURE(S): Success and failure rate of medical management.
RESULT(S): Five observational studies, including 503 women, were found that reported successes in using single-dose methotrexate stratified by initial hCG concentration. Failure rates increase with increasing hCG levels. A substantial and statistically significant increase in failure rates is seen when comparing patients who have initial hCG levels of >5,000 mIU/mL with those who have initial levels of <5,000 mIU/mL (odds ratio: 5.45; 95% confidence interval: 3.04, 9.78). The failure rate for women who had an initial concentration between 5,000 and 9,999 mIU/mL was significantly higher than that for those who had initial levels between 2,000 and 4,999 mIU/mL (odds ratio: 3.76; 95% confidence interval: 1.16, 12.33).
CONCLUSION(S): Results support a substantial increase in failure of medical management with single-dose methotrexate when the initial hCG is above 5,000 mIU/mL. Methotrexate should be used with caution in patients with ectopic pregnancy who present with hCG levels above this level.