title: Cervico-vaginal Chlamydia trachomatis infection in pregnant adolescent and adult women. A morphologic and immunofluorescent study.
abstract: We studied the incidence of cervical Chlamydia trachomatis (CT) in 65 adolescents aged between 14 and 19 years and 65 adults aged 20 years or more. All subject were more than three months advanced in a normal pregnancy. Two samples for cytology were obtained from each patient, one ecto- and endocervical, with Ayre's spatula and cytobrush, and one only endocervical with cytobrush. The first one was examined after Papanicolaou staining and the second one was examined with the easily performed immunofluorescence reaction to CT (IF)--Microtrak, SYVA. Twenty seven adolescent patients (41.5%) and fourteen adults (21.5%) had a positive IF test for CT; the rate in adolescents was significantly higher (P < 0.01) than in adults. The Papanicolaou (Pap) stained slides, examined blind for evidence of CT infection showed a sensitivity of 70.7%, a specificity of 95.5% and positive and negative predictive values of 87.8% and 87.6% respectively. Seven adolescents showed cytological signs of Papillomavirus (HPV) infection, and six of them were also CT positive; five had signs of HPV infection and 4 of them were CT positive.
authors.affiliation: Pathology Division, Adolfo Lutz Institute, São Paulo, Brasil.
authors.forename: M J
authors.initials: MJ
authors.lastname: Cavaliere
authors.forename: M Y
authors.initials: MY
authors.lastname: Maeda
authors.forename: N K
authors.initials: NK
authors.lastname: Shirata
authors.forename: A
authors.initials: A
authors.lastname: Longatto Filho
authors.forename: L W
authors.initials: LW
authors.lastname: Shih
authors.forename: M
authors.initials: M
authors.lastname: de Siqueira
authors.forename: M G
authors.initials: MG
authors.lastname: de Muelenare Correa
authors.forename: H F
authors.initials: HF
authors.lastname: Oliveira
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002690:Chlamydia Infections / Q000453:epidemiology / Q000473:pathology*; D002692:Chlamydia trachomatis; D005069:Evaluation Studies as Topic; D005260:Female; D005455:Fluorescent Antibody Technique / Q000295:instrumentation; D006801:Humans; D015994:Incidence; D065006:Papanicolaou Test; D027383:Papillomaviridae; D030361:Papillomavirus Infections / Q000453:epidemiology / Q000473:pathology; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology / Q000473:pathology*; D012680:Sensitivity and Specificity; D014412:Tumor Virus Infections / Q000453:epidemiology / Q000473:pathology; D002577:Uterine Cervical Diseases / Q000453:epidemiology / Q000473:pathology*; D014623:Vaginal Diseases / Q000453:epidemiology / Q000473:pathology*; D014626:Vaginal Smears / Q000295:instrumentation / Q000379:methods