Comparación de los criterios de Nugent y Spiegel para el diagnóstico de vaginosis bacteriana y análisis de los resultados discordantes por el método de Ison y Hay / Nugent and Spiegel criteria for the diagnosis of bacterial vaginosis. Analysis of discordant specimens by the Ison and Hay method
Rev. méd. Chile
;
139(1): 66-71, ene. 2011. ilus
Artículo
en Español
| LILACS
| ID: lil-595267
ABSTRACT
Background:
Vaginal infection is the commonest cause of genital symptoms and has obstetric and gynecological implications.Aim:
To compare the Nugent and Spiegel methods for the diagnosis of bacterial vaginosis (BV) and to analyze discordant specimens using Ison and Hay (Ison/Hay) criteria. Material andMethods:
After discardingcases with Candidiasis, deficientspecimens or those lacking bacteria, a total of348 Gram-stained smears vaginal specimens receivedfor the diagnosis of BV, were analyzed.Results:
Vaginal microbiota was classified as normal in 203 and 237 samples (58 and 68 percent of samples), accordingto Nugent and Spiegel criteria, respectively One hundred andfive (30 percent) and 111 samples (32 percent), were classified as VB accordingto Nugent and Spiegel criteria, respectively. Both criteria were concordant in 308 samples (88.5 percent). The 40 (11.5 percent) discordant specimens were classified as intermedíate microflora by the Nugent system and as normal or BV by Spiegel. Among these, the Ison/Hay procedure identified four categories of microbiota. Ten (25 percent) specimens were classified as grade II microbiota, confirming their categorization by Nugent as intermedíate microbiota, six (15 percent) were classified in the III category, confirming the diagnosis ofBV by Spiegel, 13 (32.5 percent) corresponded to the category III, that does not exist in the Nugent and Spiegel categorization systems. Finally, 11 specimens could not be assigned to one category due to microscopic limitations to distinguish bacterial morphotypes.Conclusions:
The systems proposed by Spiegel, Nugent and Ison I Hay are comparable for the diagnosis of BV. However, we recommend the use of Ison/ Hay procedure to evalúate vaginal microbiota, due to its wider range of categories, allowing a better discrimination ofthe vaginal microbiota.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Técnicas de Tipificación Bacteriana
/
Vaginosis Bacteriana
Tipo de estudio:
Estudio diagnóstico
/
Estudio pronóstico
Límite:
Femenino
/
Humanos
Idioma:
Español
Revista:
Rev. méd. Chile
Asunto de la revista:
Medicina
Año:
2011
Tipo del documento:
Artículo
País de afiliación:
Chile
Institución/País de afiliación:
Hospital Clínico Universidad de Chile/CL
/
Universidad de Chile/CL
/
Hospital San Borja Arriarán+CL
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