Diagnosis of Trichomonas vaginalis from vaginal specimens by wet mount microscopy, in pouch TV culture system, and PCR

Background: In recent years, trichomoniasis has emerged as the most common sexually transmitted disease and limited data are available on the effective screening technique for the diagnosis of Trichomonas vaginalis. Aim : The aim was to compare and evaluate different diagnostic methods like wet moun...

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Main Authors: Madhumati J Patil, Jyoti M Nagamoti, Sharada C Metgud
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2012-01-01
Series:Journal of Global Infectious Diseases
Subjects:
Online Access:http://www.jgid.org/article.asp?issn=0974-777X;year=2012;volume=4;issue=1;spage=22;epage=25;aulast=Patil
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author Madhumati J Patil
Jyoti M Nagamoti
Sharada C Metgud
author_facet Madhumati J Patil
Jyoti M Nagamoti
Sharada C Metgud
author_sort Madhumati J Patil
collection DOAJ
description Background: In recent years, trichomoniasis has emerged as the most common sexually transmitted disease and limited data are available on the effective screening technique for the diagnosis of Trichomonas vaginalis. Aim : The aim was to compare and evaluate different diagnostic methods like wet mount microscopy, In Pouch TV culture, and Polymerase chain reaction (PCR) to establish which method or combination of methods was most effective for detection of Trichomonas vaginalis in vaginal swab specimens. Settings and Design : This is a cross-sectional study. Materials and Methods : A total of 200 patients complaining of vaginal discharge were included in the study. Three vaginal swabs were screened for trichomoniasis by wet mount microscopy, In Pouch TV culture system and PCR, using TVK3 and TVK7 specific primers. Results : Of the 200 cases studied, 36 (18%) were positive by wet mount microscopy, 44 (22%) by In Pouch TV culture system and 60(30%) by PCR. Sensitivity and specificity of wet mount were 60% and 100%, respectively, whereas sensitivity and specificity of the In Pouch TV culture system were 73.33% and 100%, respectively when compared to PCR. Conclusion : Comparison of different methods showed that at least two techniques, such as wet mount microscopy and culture have a better chance of detection of T. vaginalis infection. Diagnosis of trichomoniasis by PCR was found to be highly specific and sensitive, but its availability and cost effectiveness limit its use in routine diagnostic laboratories.
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spelling doaj.art-9009f742ef354e52860f96b4457c5aa62022-12-21T17:58:11ZengWolters Kluwer Medknow PublicationsJournal of Global Infectious Diseases0974-777X2012-01-0141222510.4103/0974-777X.93756Diagnosis of Trichomonas vaginalis from vaginal specimens by wet mount microscopy, in pouch TV culture system, and PCRMadhumati J PatilJyoti M NagamotiSharada C MetgudBackground: In recent years, trichomoniasis has emerged as the most common sexually transmitted disease and limited data are available on the effective screening technique for the diagnosis of Trichomonas vaginalis. Aim : The aim was to compare and evaluate different diagnostic methods like wet mount microscopy, In Pouch TV culture, and Polymerase chain reaction (PCR) to establish which method or combination of methods was most effective for detection of Trichomonas vaginalis in vaginal swab specimens. Settings and Design : This is a cross-sectional study. Materials and Methods : A total of 200 patients complaining of vaginal discharge were included in the study. Three vaginal swabs were screened for trichomoniasis by wet mount microscopy, In Pouch TV culture system and PCR, using TVK3 and TVK7 specific primers. Results : Of the 200 cases studied, 36 (18%) were positive by wet mount microscopy, 44 (22%) by In Pouch TV culture system and 60(30%) by PCR. Sensitivity and specificity of wet mount were 60% and 100%, respectively, whereas sensitivity and specificity of the In Pouch TV culture system were 73.33% and 100%, respectively when compared to PCR. Conclusion : Comparison of different methods showed that at least two techniques, such as wet mount microscopy and culture have a better chance of detection of T. vaginalis infection. Diagnosis of trichomoniasis by PCR was found to be highly specific and sensitive, but its availability and cost effectiveness limit its use in routine diagnostic laboratories.http://www.jgid.org/article.asp?issn=0974-777X;year=2012;volume=4;issue=1;spage=22;epage=25;aulast=PatilIn Pouch TV culturePCRTrichomonas vaginalisVaginal dischargeWet mount microscopy
spellingShingle Madhumati J Patil
Jyoti M Nagamoti
Sharada C Metgud
Diagnosis of Trichomonas vaginalis from vaginal specimens by wet mount microscopy, in pouch TV culture system, and PCR
Journal of Global Infectious Diseases
In Pouch TV culture
PCR
Trichomonas vaginalis
Vaginal discharge
Wet mount microscopy
title Diagnosis of Trichomonas vaginalis from vaginal specimens by wet mount microscopy, in pouch TV culture system, and PCR
title_full Diagnosis of Trichomonas vaginalis from vaginal specimens by wet mount microscopy, in pouch TV culture system, and PCR
title_fullStr Diagnosis of Trichomonas vaginalis from vaginal specimens by wet mount microscopy, in pouch TV culture system, and PCR
title_full_unstemmed Diagnosis of Trichomonas vaginalis from vaginal specimens by wet mount microscopy, in pouch TV culture system, and PCR
title_short Diagnosis of Trichomonas vaginalis from vaginal specimens by wet mount microscopy, in pouch TV culture system, and PCR
title_sort diagnosis of trichomonas vaginalis from vaginal specimens by wet mount microscopy in pouch tv culture system and pcr
topic In Pouch TV culture
PCR
Trichomonas vaginalis
Vaginal discharge
Wet mount microscopy
url http://www.jgid.org/article.asp?issn=0974-777X;year=2012;volume=4;issue=1;spage=22;epage=25;aulast=Patil
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