Abstract
PURPOSE: to evaluate whether oral and vaginal sex practice, with or without exposure to semen, decrease the occurrence of recurrent spontaneous abortion. METHOD: this was a case-control study carried out between May 2000 and April 2003. A questionnaire was applied analyzing the clinical, obstetric and sexual history of women, who were divided into two groups: a case group comprised 116 patients with a history of at least two spontaneous abortions, without previous pregnancy longer than 22 weeks, and a control group that included 241 women with history of one or more term pregnancies with live birth and no miscarriage. The analyzed variables included the number of sexual partners, condom use, oral sex practice, and the exposure of female oral mucosa to semen. RESULTS: in the control group 38.8%, and in the patients group 35.7% of the women had only one partner. In both groups about 75% of the women reported that the partners did not use condom. Approximately 55% of the women of both groups referred oral sex practice, and 13.8% of those with recurrent abortion and 20.3% with a history of successful pregnancies had oral mucosa exposed to semen. There was no difference between the patients with recurrent abortion and women with successful pregnancies regarding number of sexual partners, use of condom, practice of oral sex, and exposure of oral mucosa to the partner's semen. CONCLUSION: our results did not confirm the hypothesis that sexual behavior influences the occurrence of spontaneous abortion.
Highlights
18.Klonoff-Cohen HS, Savitz DA, Cefalo RC, McCcann MF
A questionnaire was applied analyzing the clinical, obstetric and sexual history of women, who were divided into two groups: a case group comprised 116 patients with a history of at least two spontaneous abortions, without previous pregnancy longer than 22 weeks, and a control group that included 241 women with history of one or more term pregnancies with live birth and no miscarriage
The analyzed variables included the number of sexual partners, condom use, oral sex practice, and the exposure of female oral mucosa to semen
Summary
Contact with Paternal Antigens in Oral and Vaginal Mucosa and Recurrent Abortion. Objetivo: determinar se a prática do sexo oral e vaginal, com ou sem exposição ao ejaculado, diminui a ocorrência de abortamento recorrente. Não houve diferença entre as pacientes com aborto de repetição e as com sucesso gestacional quanto ao número de parceiros, uso de preservativo, prática de sexo oral e exposição da mucosa oral ao ejaculado pelo parceiro. A maioria dos casais apresenta histoincompatibilidade entre si, sugerindo que o reconhecimento desta diferença nos Ag feto-paternos seria fundamental para a manutenção da gravidez, por meio do desenvolvimento da imunotolerância materna[6]. Os fenômenos e fatores envolvidos nos mecanismos maternos de imunossupressão e imunoestimulação ainda não foram completamente elucidados, porém alguns autores sugerem que deficiências ou desequilíbrios da resposta materna ao feto podem levar à perda gestacional e intercorrências obstétricas[7]. Esses antígenos estão envolvidos no desencadeamento da resposta imune, pois são essenciais para o reconhecimento do que é próprio (self) ou estranho ao organismo. O AER seria a expressão mais precoce e máxima de rejeição e as diferentes formas de apresentação clínica da PE, as formas tardias, intermediárias e mais brandas
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