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CONTEXT AND OBJECTIVE: There is evidence that ectopic pregnancies present different behavioral patterns. These distinct evolutions of ectopic pregnancies represent two different natural histories. To evaluate these evolution patterns, we compared patients undergoing medical treatment and expectant management according to their gestational age and initial beta-hCG levels. DESIGN AND SETTING: Prospective study at the Department of Obstetrics of Universidade Federal de São Paulo, a tertiary center. METHODS: Among 119 cases of unruptured ectopic pregnancies diagnosed from April 1999 to February 2004, 57 received systemic treatment with methotrexate 50 mg/m² (body surface area) intramuscularly and 62 were managed expectantly. In this study we evaluated the beta-hCG levels at presentation and amenorrhea duration. RESULTS: There was a significant difference between the two groups regarding amenorrhea duration and initial beta-hCG levels (p < 0.001). The group with decreasing beta-hCG levels (managed expectantly) had longer amenorrhea (mean: 8.87 ± 1.71 weeks) and lower initial beta-hCG levels (mean: 648.8 ± 754.7 mIU/ml). On the other hand, the group treated with methotrexate had shorter amenorrhea (mean: 6.81 ± 1.88 weeks) and higher beta-hCG levels at presentation (2642.7 ± 2315.1 mIU/ml). CONCLUSIONS: The data suggest that ectopic pregnancies can be categorized into two groups: those with early diagnosis and shorter amenorrhea, increasing or maintained beta-hCG levels over 24 and 48-hour intervals and higher beta-hCG levels requiring medical treatment; and those with late diagnosis and longer amenorrhea, decreased beta-hCG levels over 24 and 48-hour intervals and lower beta-hCG levels requiring expectant management.

CONTEXT AND OBJECTIVE: As there is little information about fertility outcomes among women following clinical treatment (methotrexate and expectant management) and surgery (salpingectomy) consequent to ectopic pregnancy, we evaluate the results from hysterosalpingography subsequent to treatment. The objective was to evaluate contralateral tubal patency using hysterosalpingography following surgery and clinical treatment of tubal pregnancy. DESIGN AND SETTING: This was a prospective study at the Department of Obstetrics of Universidade Federal de São Paulo, a tertiary center. METHOD: Among 115 patients who underwent hysterosalpingography following surgery and clinical treatment of tubal pregnancy between April 1994 and February 2002, 30 were treated with a single intramuscular dose of methotrexate (50 mg/m²), 50 were followed up expectantly and 35 underwent salpingectomy. RESULTS: The patency of the ipsilateral tube was 84% after methotrexate treatment and 78% after expectant management. In addition, contralateral tubal patency was 97% after methotrexate treatment, 92% after expectant management and 83% after salpingectomy. There were no statistically significant differences between the clinical treatment and surgery groups. CONCLUSIONS: The findings from this study suggest similar contralateral tubal patency rates following salpingectomy, methotrexate treatment and expectant management.