A significant association between spontaneous abortion and tubal ectopic pregnancy.
A retrospective study of 83 patients with pathologically documented tubal ectopic pregnancy demonstrated a statistically significant association (P less than 0.005) between prior spontaneous abortion and ectopic pregnancy. In this population with a low incidence of chronic salpingitis, it is suggested that delayed (post-midcycle) ovulation, causing preovulatory over-ripeness of the ovum, may be the common underlying etiologic factor. The clinical significance of this finding is also briefly discussed.
D000022:Abortion, Spontaneous / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D009523:Newfoundland and Labrador; D011247:Pregnancy; D011274:Pregnancy, Tubal / Q000453:epidemiology*; D012189:Retrospective Studies