Vaginose Bacteriana em Mulheres com Infertilidade e em Menopausadas <span class="so-article-trans-title"> Translated title: Bacterial Vaginosis In Menopausal Women and in Women with Infertility </span>

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Abstract

Objetivo: analisar a prevalência de vaginose bacteriana (VB) em mulheres inférteis e em menopausadas e os métodos mais comumente usados na prática clínica para o seu diagnóstico. Métodos: foram avaliadas retrospectivamente 104 pacientes na menopausa e 86 inférteis. A presença de corrimento vaginal característico, pH vaginal >4,5, teste das aminas (whiff test) positivo e achado de vaginose bacteriana à coloração da secreção pelo Gram foram considerados positivos. Foi estabelecido diagnóstico de VB quando 3 dos 4 critérios acima fossem satisfeitos. Resultados: analisando os métodos diagnósticos separadamente observamos, entre as menopausadas, 29 pacientes com corrimento vaginal característico (28,1%), 10 (9,6%) com whiff test positivo, 68 (65,4%) com pH vaginal >4,5 e 34 (32,7%) com teste do Gram positivo. Nas mulheres inférteis os resultados foram 20 (23,2%), 13 (15,1%), 61 (70,9%) e 26 (30,2%), respectivamente. Ao analisarmos todos os critérios em conjunto, em 14 pacientes na menopausa (13,5%) e em 15 inférteis (17,4%) foi diagnosticada VB. Conclusão: a prevalência de VB foi similar nos 2 grupos de pacientes. Além disso, todos os métodos diagnósticos devem ser utilizados a fim de não se sub ou super-diagnosticar essa patologia.

Translated abstract

Purpose: to evaluate the prevalence of bacterial vaginosis (BV) in menopausal and in infertile outpatients and to analyze the current clinical diagnostic methods. Methods: we evaluated retrospectively 104 menopausal women and 86 with infertility. Characteristic vaginal discharge on gynecological examination, pH >4.5, positive KOH whiff test, and bacterial vaginosis by Gram test were considered positive. BV was established when at least 3 out of 4 criteria were found. Results: among the menopausal women, 29 patients (28.1%) were clinically positive for BV, 10 (9.6%) had positive whiff test, 68 (65.4%) vaginal pH >4.5, and 34 (32.7%) positive Gram test. For the infertile patients the figures were 20 (23.2%), 13 (15.1%), 61 (70.9%) and 26 (30.2%), respectively. According to our established criteria, BV was diagnosed in 14 menopausal (13.5%) and 15 infertile (17.4%) women. Conclusion: bacterial vaginosis prevalence was similar in both groups of patients. In addition, all diagnostic criteria should be followed in order to avoid underdiagnosing this pathology or treating an otherwise normal vaginal flora.

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Most cited references 30

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Reliability of diagnosing bacterial vaginosis is improved by a standardized method of gram stain interpretation.

R Nugent, M Krohn, S L Hillier (1991)

The purpose of the study was to examine intercenter variability in the interpretation of Gram-stained vaginal smears from pregnant women. The intercenter reliability of individual morphotypes identified on the vaginal smear was evaluated by comparing them with those obtained at a standard center. A new scoring system that uses the most reliable morphotypes from the vaginal smear was proposed for diagnosing bacterial vaginosis. This scoring system was compared with the Spiegel criteria for diagnosing bacterial vaginosis. The scoring system (0 to 10) was described as a weighted combination of the following morphotypes: lactobacilli, Gardnerella vaginalis or bacteroides (small gram-variable rods or gram-negative rods), and curved gram-variable rods. By using the Spearman rank correlation to determine intercenter variability, gram-positive cocci had poor agreement (0.23); lactobacilli (0.65), G. vaginalis (0.69), and bacteroides (0.57) had moderate agreement; and small (0.74) and curved (0.85) gram-variable rods had good agreement. The reliability of the 0 to 10 scoring system was maximized by not using gram-positive cocci, combining G. vaginalis and bacteroides morphotypes, and weighting more heavily curved gram-variable rods. For comparison with the Spiegel criteria, a score of 7 or higher was considered indicative of bacterial vaginosis. The standardized score had improved intercenter reliability (r = 0.82) compared with the Spiegel criteria (r = 0.61). The standardized score also facilitates future research concerning bacterial vaginosis because it provides gradations of the disturbance of vaginal flora which may be associated with different levels of risk for pregnancy complications.