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Background: Recurrent spontaneous abortion (RSA) has an incidence of 0.5%-1%. It is thought that immune reaction disorders in the mother may evolve in unexplained RSA, which has a higher incidence in women over 40 years old., Methods: Twenty-three patients with recurrent spontaneous abortion of unknown origin and two autoimmune cases were treated with intravenous specific immunoglobulins at the 5th-6th week of pregnancy and fifteen days later., Results: After treatment, nineteen patients brought their pregnancy to term, five aborted, one is pregnant at present., Conclusions: The use of immunoglobulins seems to be efficacious in recurrent spontaneous abortion of unknown origin. Our results support the theory that this treatment is able to passively transfer the sparking off factor that allows the pregnancy to evolve.

Background: Spontaneous abortion is the most common complication of pregnancy. It may be unique, remaining random and having no consequences on the reproductive process, or it can repeat itself, starting a clinical picture known as recurrent spontaneous abortion or habitual abortion. The term of RSA syndrome is used to define the repetition of three or more consecutive abortions before the 24th week., Methods: A population of 195 couples with recurrent spontaneous abortion were screened for genetic, metabolic, infective, morphological, endocrine and autoimmune factors. Eighty-five completed the investigation, 44 are being tested and 66 did not complete the diagnostic course. Causes of recurrent abortion were evaluated in relation to the period of abortion and number of embryo losses., Results: Forty-six percent of patients who completed the investigation turned out to be sine causa, which is in accordance with the findings in literature., Conclusions: Couple with RSA require accurate counselling and it is fundamental to eliminate any pathologies that can be discovered so as to improve the likelihood of the pregnancy's reaching term.