Communications-in-briefOccult abortion: not a major cause of infertility*
Review articleOpen access
1994/12/01 Short communication DOI: 10.1016/S0015-0282(16)57199-4
Journal: Fertility and Sterility
ObjectivesTo determine whether occult abortion is a frequent cause of infertility.DesignProspective observational clinical study.SettingHospital based infertility clinic, serving as the only primary infertility care facility to a population of 250,000 people.Patients102 subsequent infertility patients.InterventionsUltrasound ovulation detection, timed hCG determinations.Main Outcome MeasureProportion of patients with serum hCG levels > 2.0 mIU/mL (> 2.0 IU/L) on dyas 12 or 13 after ultrasound-proven ovulation with subsequent appearance of the menstrual period before or at postovulation day 14.ResultsIn 18 of 102 patients increased hCG was found. All these patients became clinically pregnant (9 spontaneous abortions, 9 ongoing pregnancies). No occult abortion occurred (95% confidence interval 0–4%).ConclusionsOccult abortion is not a frequent cause of infertility in an unselected population.
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