Some factors significantly related to succesfull management found include gestational age ≤ 6 weeks (OR = 3.01); ßhCG level ≤ 11.000 mUI / mL before discharge from hospital (OR = 6.59); volume of gestational sac after two weeks of treatment ≤ 5 cm3 (OR = 9.10), blood volume loss after ultrasound-guided dilation and curettage ≤ 50ml (OR = 5.00).