Microscopy outperformed in a comparison of five methods for detecting Trichomonas vaginalis in symptomatic women

In the UK, despite its low sensitivity, wet mount microscopy is often the only method of detecting Trichomonas vaginalis infection. A study was conducted in symptomatic women to compare the performance of five methods for detecting T. vaginalis: an in-house polymerase chain reaction (PCR); Aptima T. vaginalis kit; OSOM ®Trichomonas Rapid Test; culture and microscopy. Symptomatic women underwent routine testing; microscopy and further swabs were taken for molecular testing, OSOM and culture. A true positive was defined as a sample that was positive for T. vaginalis by two or more different methods. Two hundred and forty-six women were recruited: 24 patients were positive for T. vaginalis by two or more different methods. Of these 24 patients, 21 patients were detected by real-time PCR (sensitivity 88%); 22 patients were detected by the Aptima T. vaginalis kit (sensitivity 92%); 22 patients were detected by OSOM (sensitivity 92%); nine were detected by wet mount microscopy (sensitivity 38%); and 21 were detected by culture (sensitivity 88%). Two patients were positive by just one method and were not considered true positives. All the other detection methods had a sensitivity to detect T. vaginalis that was significantly greater than wet mount microscopy, highlighting the number of cases that are routinely missed even in symptomatic women if microscopy is the only diagnostic method available..

Medienart:

Artikel

Erscheinungsjahr:

2015

Erschienen:

2015

Enthalten in:

Zur Gesamtaufnahme - volume:26

Enthalten in:

International journal of STD & AIDS - 26(2015), 4, Seite 251-256

Sprache:

Englisch

Beteiligte Personen:

Nathan, B [VerfasserIn]
Appiah, J [Sonstige Person]
Saunders, P [Sonstige Person]
Heron, D [Sonstige Person]
Nichols, T [Sonstige Person]
Brum, R [Sonstige Person]
Alexander, S [Sonstige Person]
Baraitser, P [Sonstige Person]
Ison, C [Sonstige Person]

Links:

Volltext
www.ncbi.nlm.nih.gov

Themen:

Culture
Diagnosis
Human immunodeficiency virus
London
Microscopy
Nucleic acid amplification test
Point of care test
Sexually transmitted infection
Symptomatic
Trichomonas Vaginitis - diagnosis
Trichomonas vaginalis
Trichomonas vaginalis - isolation & purification
Women

doi:

10.1177/0956462414534833

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

OLC1958386359