Clinical and laboratory evidence of Trichomonas vaginalis infection among women of reproductive age in rural area.

Background: Vaginitis is a commonly encountered complaint and one of the most frequent reasons for patient visit to obstetrician-gynaecologists. Three vaginal infections are frequent causes of a vaginal discharge: (1) bacterial vaginosis, (2) vulvovaginal candidiasis and (3) trichomonas vaginitis. Differences in the clinical presentation are helpful in diagnosis. Characteristic signs and symptoms for these three vaginal infections are distinct, but on many occasions, they are overlapping. The aim of the present study was to find the prevalence and correlation between the clinical spectrum and laboratory evidence of Trichomonas vaginalis infection by simple, reliable, confirmatory and specific method, i.e. microscopic examination of wet mount preparation and acridine stain of vaginal fluid. Materials and Methods: Irrespective of HIV status, a total of 156 women with vaginal discharge were studied for establishing diagnosis of genital tract infection. The cases of bacterial vaginosis and vulvovaginal candidiasis were excluded from the study. Vaginal speculum assisted high vaginal swabs were collected from women with discharge, during collection vagina was inspected for obvious signs. Results: Of the 156 women with vaginal discharge, 19 (12.06 %) showed T. vaginalis infection. All the women belonged to active reproductive age group, i.e. 20-40 years. Itching dysuria, and offensive, malodorous, thin, yellowish vaginal discharge were the main and consistent complaints. Only in 2 (1.52%) cases, vaginal speculum examination revealed erythema and punctuate haemorrhage, the so-called "strawberry' vagina. The pH was recorded to be >4.5. Conclusion: Clinical differentiation of various forms of infectious vaginitis is unreliable. The prevalence of T. vaginalis infection at 12.06% was found among rural young women of reproductive age using simple and reliable screening wet mount microscopy.

Prevalência e fatores associados à percepção de ocorrência de corrimento vaginal patológico entre gestantes / Prevalence of self-reported vaginal discharge and associated factors in pregnant women

Este estudo teve por objetivo medir a prevalência e identificar fatores associados à percepção de corrimento vaginal patológico por gestantes residentes em Rio Grande, Rio Grande do Sul, Brasil. Aplicou-se questionário padronizado a todas as parturientes nas maternidades do município em 2007. Utilizou-se teste do qui-quadrado para comparar proporções e análise multivariável por regressão de Poisson. A prevalência de corrimento vaginal foi de 40 por cento. Análise ajustada mostrou as seguintes razões de prevalência: 1,6 (1,4-1,8) para adolescentes; 1,3 (1,1-1,6) para aquelas com até oito anos de escolaridade; 1,3 (1,1-1,5) para aquelas que ingeriram álcool; 2,0 (1,8-2,2) para aquelas que referiram corrimento vaginal em gestação anterior; 1,4 (1,3-1,6) para infecção urinária na gestação atual; prematuridade em gestação anterior mostrou-se protetor com RP = 0,8 (0,7-0,9). Os serviços de saúde deveriam priorizar diagnóstico e tratamento de corrimento vaginal entre gestantes adolescentes, de baixa renda familiar e escolaridade, com história prévia de corrimento em gravidez anterior e infecção urinária na gravidez atual.

This study aims to determine the prevalence self-reported abnormal vaginal discharge and to identify associated risk factors in pregnant women in the municipality of Rio Grande, Rio Grande do Sul State, Brazil. A standardized questionnaire was applied to all pregnant women admitted for delivery in local maternity hospitals. The chi-square test was used to compare proportions, and Poisson regression was applied using multivariate analysis. Prevalence of vaginal discharge was 40 percent. Adjusted analysis showed the following prevalence ratios for vaginal discharge: 1.6 (1.4-1.8) for adolescents; 1.3 (1.1-1.6) for 8 years of schooling or less; 1.3 (1.1-1.5) for alcohol consumption; 2.0 (1.8-2.2) for vaginal discharge in the previous pregnancy; 1.4 (1.3-1.6) for urinary tract infection in the current pregnancy; and 0.8 (0.7-0.9) for history of prematurity. Local health services should target adolescent women, those with low schooling or low family income, and those with a history of vaginal discharge in the previous pregnancy or urinary tract infection in the current pregnancy.