Bacterial vaginosis - diagnostic dilemma and implications

Background/Aim. Bacterial vaginosis (BV) is one of the most common microbial dysbiosis, characterized by a decrease of Lactobacillus spp. with an increase of other anaerobic bacteria species [Gardnerella (G.) vaginalis, Atopobium (A.) vaginae, Prevotella spp, Mobiluncus spp, etc.] causing serious gy...

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Main Authors: Atanasievska Sonja, Nenadić Dane, Stanković Slaviša, Protić-Đokić Vesna, Ristanović Elizabeta
Format: Article
Language:English
Published: Military Health Department, Ministry of Defance, Serbia 2023-01-01
Series:Vojnosanitetski Pregled
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0042-8450/2023/0042-84502200011A.pdf
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author Atanasievska Sonja
Nenadić Dane
Stanković Slaviša
Protić-Đokić Vesna
Ristanović Elizabeta
author_facet Atanasievska Sonja
Nenadić Dane
Stanković Slaviša
Protić-Đokić Vesna
Ristanović Elizabeta
author_sort Atanasievska Sonja
collection DOAJ
description Background/Aim. Bacterial vaginosis (BV) is one of the most common microbial dysbiosis, characterized by a decrease of Lactobacillus spp. with an increase of other anaerobic bacteria species [Gardnerella (G.) vaginalis, Atopobium (A.) vaginae, Prevotella spp, Mobiluncus spp, etc.] causing serious gynecological and obstetric complications. There-fore, it is particularly important to have accurate and reliable diagnostic standards. The aim of this study was to compare the results of various diagnostic methods for detecting BV, such as Amsel, Nugent, and Ison and Hay criteria, as well as multiplex quantitative real-time polymerase chain reaction (mqRT-PCR) test. Methods. This study involved vaginal swabs from 235 patients of reproductive age. Nugent criteria were used as the ‘gold standard’ compared with Amsel and Ison/Hay criteria as well as mqRT-PCR test based on the detection and quantification of G. vaginalis, A. vaginae, Lactobacillus spp., and total concentration of bacterial DNA. The kappa coefficient was employed to measure agreement between tests. Results. Our analysis demonstrated excellent agreement between Ison/Hay criteria and Nugent scores (kappa = 0.95), good agreement between Amsel and Nugent criteria (kappa = 0.78), while between Nugent criteria and mqRT-PCR test agreement was moderate (kappa = 0.59). Total agreements of Ison/Hay, Amsel, and mqRT-PCR against Nugent scores were 94.9%, 90.2%, and 74%, respectively. Nugent methods classified the highest number of intermediate patients - 60 (25.2%). The largest number of BV patients was detected by the mqRT-PCR method, while the largest number of healthy patients was detected by Amsel criteria. Conclusion. The mqRT-PCR is the best choice for BV diagnosis because it is more efficient at differentiating patients with intermediate results. Compared to Amsel and Nugent methods that group patients into 2 or 3 categories, the mqRT-PCR method recognizes other conditions of vaginal flora important for correct diagnoses and application of better therapeutic approaches, as well as preventing possible clinical consequences of this dysbiosis.
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spelling doaj.art-b4dd7ea8b12e4ea28ab18d7b0d5e17942023-03-10T08:07:55ZengMilitary Health Department, Ministry of Defance, SerbiaVojnosanitetski Pregled0042-84502406-07202023-01-0180191510.2298/VSP210513011A0042-84502200011ABacterial vaginosis - diagnostic dilemma and implicationsAtanasievska Sonja0Nenadić Dane1Stanković Slaviša2https://orcid.org/0000-0003-0527-8741Protić-Đokić Vesna3Ristanović Elizabeta4Military Medical Academy, Institute of Microbiology, Belgrade, SerbiaMilitary Medical Academy, Center for Gynecology and Human Reproduction, Belgrade, SerbiaUniversity of Belgrade, Faculty of Biology, Belgrade, SerbiaMilitary Medical Academy, Institute of Microbiology, Belgrade, SerbiaMilitary Medical Academy, Institute of Microbiology, Belgrade, SerbiaBackground/Aim. Bacterial vaginosis (BV) is one of the most common microbial dysbiosis, characterized by a decrease of Lactobacillus spp. with an increase of other anaerobic bacteria species [Gardnerella (G.) vaginalis, Atopobium (A.) vaginae, Prevotella spp, Mobiluncus spp, etc.] causing serious gynecological and obstetric complications. There-fore, it is particularly important to have accurate and reliable diagnostic standards. The aim of this study was to compare the results of various diagnostic methods for detecting BV, such as Amsel, Nugent, and Ison and Hay criteria, as well as multiplex quantitative real-time polymerase chain reaction (mqRT-PCR) test. Methods. This study involved vaginal swabs from 235 patients of reproductive age. Nugent criteria were used as the ‘gold standard’ compared with Amsel and Ison/Hay criteria as well as mqRT-PCR test based on the detection and quantification of G. vaginalis, A. vaginae, Lactobacillus spp., and total concentration of bacterial DNA. The kappa coefficient was employed to measure agreement between tests. Results. Our analysis demonstrated excellent agreement between Ison/Hay criteria and Nugent scores (kappa = 0.95), good agreement between Amsel and Nugent criteria (kappa = 0.78), while between Nugent criteria and mqRT-PCR test agreement was moderate (kappa = 0.59). Total agreements of Ison/Hay, Amsel, and mqRT-PCR against Nugent scores were 94.9%, 90.2%, and 74%, respectively. Nugent methods classified the highest number of intermediate patients - 60 (25.2%). The largest number of BV patients was detected by the mqRT-PCR method, while the largest number of healthy patients was detected by Amsel criteria. Conclusion. The mqRT-PCR is the best choice for BV diagnosis because it is more efficient at differentiating patients with intermediate results. Compared to Amsel and Nugent methods that group patients into 2 or 3 categories, the mqRT-PCR method recognizes other conditions of vaginal flora important for correct diagnoses and application of better therapeutic approaches, as well as preventing possible clinical consequences of this dysbiosis.http://www.doiserbia.nb.rs/img/doi/0042-8450/2023/0042-84502200011A.pdfdiagnostic techniques, obstetrical and gynecologicalmicroscopyvaginal diseasesvaginal smearsvaginosis, bacterial
spellingShingle Atanasievska Sonja
Nenadić Dane
Stanković Slaviša
Protić-Đokić Vesna
Ristanović Elizabeta
Bacterial vaginosis - diagnostic dilemma and implications
Vojnosanitetski Pregled
diagnostic techniques, obstetrical and gynecological
microscopy
vaginal diseases
vaginal smears
vaginosis, bacterial
title Bacterial vaginosis - diagnostic dilemma and implications
title_full Bacterial vaginosis - diagnostic dilemma and implications
title_fullStr Bacterial vaginosis - diagnostic dilemma and implications
title_full_unstemmed Bacterial vaginosis - diagnostic dilemma and implications
title_short Bacterial vaginosis - diagnostic dilemma and implications
title_sort bacterial vaginosis diagnostic dilemma and implications
topic diagnostic techniques, obstetrical and gynecological
microscopy
vaginal diseases
vaginal smears
vaginosis, bacterial
url http://www.doiserbia.nb.rs/img/doi/0042-8450/2023/0042-84502200011A.pdf
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AT nenadicdane bacterialvaginosisdiagnosticdilemmaandimplications
AT stankovicslavisa bacterialvaginosisdiagnosticdilemmaandimplications
AT proticđokicvesna bacterialvaginosisdiagnosticdilemmaandimplications
AT ristanovicelizabeta bacterialvaginosisdiagnosticdilemmaandimplications