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1.
Int J STD AIDS ; 22(8): 465-70, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21795420

RESUMEN

In order to determine inpatient hospital mortality rates, causes of mortality and characteristics of inpatients at Kamuzu Central Hospital (KCH) in Lilongwe, Malawi, we conducted a prospective observational study of all patients admitted to KCH medical ward from 20 September 2008 to April 2, 2009. All admission diagnoses, HIV status and antiretroviral therapy (ART) use were recorded. Patients' vital status was determined at discharge. A descriptive analysis and two logistic regression models were used for the analysis. Of the 1895 enrolled patients, the overall hospital mortality rate was 14.6%, substantially higher among known HIV-infected patients (24.2% versus 10.8%, P = 0.0009) and men (17.1% versus 12%, P = 0.033). Patients with multiple diagnoses had significantly higher mortality (odds ratio [OR] 2.33; 95% confidence interval [CI] 1.47, 3.71). Most patients (62.3%) had unknown HIV status at admission. Among HIV-infected patients, ART use did not reduce hospital mortality or alter the spectrum of diseases. The majority of diagnoses were infectious (63.4%). The high inpatient mortality rate, especially among HIV-infected patients combined with the limited spectrum of diagnoses, emphasizes the need for improved inpatient management and diagnostic services. Expansion of HIV testing is warranted. Despite the rollout of ART, there remains a significant need for treatment of HIV-infected individuals.


Asunto(s)
Infecciones por VIH/mortalidad , Mortalidad Hospitalaria , Infecciones Oportunistas Relacionadas con el SIDA/mortalidad , Adulto , Antirretrovirales/uso terapéutico , Femenino , Infecciones por VIH/tratamiento farmacológico , Humanos , Modelos Logísticos , Malaui/epidemiología , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Estudios Prospectivos
2.
AIDS Res Hum Retroviruses ; 21(9): 799-805, 2005 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-16218804

RESUMEN

The protease (PR) and reverse transcriptase (RT) regions of HIV-1 isolates from 21 antiretroviral (ARV)-naive Malawian adults were sequenced and analyzed to determine the prevalence of drug resistance-associated mutations in this population. Phylogenetic analysis confirmed that all isolates grouped with HIV-1 subtype C, the predominant subtype in Malawi. No major mutations associated with resistance to PR inhibitors (PIs), nucleoside RT inhibitors (NRTIs), or nonnucleoside RT inhibitors (NNRTIs) were found. In contrast, accessory mutations were found in the protease region at positions 10, 20, 36, 63, 77, and 93, and in the RT region at positions 118, 211, and 214. Further studies will be needed to determine the clinical impact of these polymorphisms on viral susceptibility to existing antiretroviral drugs.


Asunto(s)
Infecciones por VIH/virología , Proteasa del VIH/genética , Transcriptasa Inversa del VIH/genética , VIH-1/genética , Adulto , Secuencia de Aminoácidos , Secuencia de Consenso , Farmacorresistencia Viral/genética , VIH-1/efectos de los fármacos , VIH-1/enzimología , Humanos , Malaui , Datos de Secuencia Molecular , Mutación , Filogenia , Alineación de Secuencia
4.
AIDS ; 15(11): 1439-42, 2001 Jul 27.
Artículo en Inglés | MEDLINE | ID: mdl-11504968

RESUMEN

Fifty-eight HIV-infected children with acute rotavirus diarrhea were tested for plasma HIV RNA. There was no difference between acute and convalescent mean viral loads, and little change in CD4 cell counts. Compared with the 16 children who died within 4 weeks, 31 survivors had slightly lower viral loads at presentation and significantly higher CD4 cell counts. Low CD4 cell counts, but not HIV-1-RNA concentrations, were predictive of Death. Local, enteric rotavirus infection did not appear to affect blood HIV viral load or CD4 cell counts in this small group of children.


Asunto(s)
Gastroenteritis/complicaciones , Infecciones por VIH/complicaciones , VIH-1 , Infecciones por Rotavirus/complicaciones , Carga Viral , Enfermedad Aguda , Adolescente , Adulto , Recuento de Linfocito CD4 , Niño , Preescolar , Ensayo de Inmunoadsorción Enzimática , Femenino , Gastroenteritis/mortalidad , Gastroenteritis/virología , Infecciones por VIH/inmunología , Infecciones por VIH/virología , Humanos , Lactante , Malaui , Masculino , ARN Viral/sangre , Infecciones por Rotavirus/mortalidad , Infecciones por Rotavirus/virología
5.
Sex Transm Dis ; 27(9): 530-8, 2000 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-11034527

RESUMEN

BACKGROUND: White blood cells on endocervical Gram stain and vaginal wet mount are frequently used to predict chlamydial and gonococcal infections. Previous studies provide conflicting evidence for the clinical utility of these tests. GOAL: To evaluate the clinical utility of measuring white blood cells on vaginal wet mount and endocervical Gram stain for the prediction of chlamydial infection and gonorrhea. STUDY DESIGN: Women undergoing pelvic examinations at 10 county health department family planning and sexually transmitted disease clinics were tested for chlamydial infection by ligase chain reaction assay (n = 4550) and for gonorrhea by culture (n = 4402). Vaginal wet mount and endocervical Gram stains were performed in county laboratories at the time of examination. RESULTS: The prevalences of chlamydial infection and gonorrhea were 8.8% and 3.2%, respectively. For detection of chlamydial or gonococcal infection, the likelihood ratio was 2.85 (95% CI, 2.10-3.87) for > 30 white blood cells on vaginal wet mount and 2.91 (95% CI, 2.07-4.09) for > 30 white blood cells on endocervical Gram stain. Similar results were seen for individual diagnoses either of chlamydial infection or of gonorrhea. CONCLUSION: Vaginal wet mount and endocervical Gram stain white blood cells are useful for the presumptive diagnosis of chlamydial infection or gonorrhea only in settings with a relatively high prevalence of infection or when other predictors can increase the likelihood of infection.


Asunto(s)
Cuello del Útero/citología , Infecciones por Chlamydia/diagnóstico , Chlamydia trachomatis , Gonorrea/diagnóstico , Recuento de Leucocitos/normas , Vagina/citología , Adulto , Cuello del Útero/microbiología , Cuello del Útero/patología , Infecciones por Chlamydia/epidemiología , Chlamydia trachomatis/aislamiento & purificación , Femenino , Gonorrea/epidemiología , Humanos , Neisseria gonorrhoeae/aislamiento & purificación , North Carolina/epidemiología , Valor Predictivo de las Pruebas , Sensibilidad y Especificidad , Vagina/microbiología , Vagina/patología
6.
Lancet ; 356(9235): 1046, 2000 Sep 23.
Artículo en Inglés | MEDLINE | ID: mdl-11009135

RESUMEN

PIP: This article examines the feasibility of a Ugandan study by James Whitworth and colleagues on the effect of HIV-1 infection and advancing immunosuppression on falciparum parasitemia and clinical malaria. The researchers observed the interaction between malaria and HIV-1 infection in adults with acquired immunity to malaria. Data were collected at the routine quarterly visits and also during interim visits prompted by symptoms. Both clinical malaria and parasitemia were rare. Results showed that HIV-1-positive individuals were more likely to be parasitemic during routine visits than were HIV-1-negative participants and the risk of finding clinical malaria was significantly higher among HIV-1-positive than among HIV-1-negative individuals, whether the visits were routine or interim. These data provide a fascinating insight into the nature of acquired immunity to malaria. Whitworth and colleagues have shown that HIV-1 infection is associated with increased prevalence and intensity of Plasmodium falciparum infection in adults with acquired immunity to malaria. However, this study should include measures of factors influencing HIV transmission and the development of AIDS, as well as variables associated with malaria transmission and response to treatment.^ieng


Asunto(s)
Infecciones por VIH/complicaciones , Malaria Falciparum/inmunología , Infecciones por VIH/epidemiología , Humanos , Inmunidad , Malaria Falciparum/sangre , Malaria Falciparum/complicaciones , Uganda/epidemiología
7.
Clin Infect Dis ; 30(4): 736-41, 2000 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-10770737

RESUMEN

Of 400 cases of urethritis in male soldiers enrolled in a behavioral intervention project, the etiology of 69% was defined at study enrollment, as well as the etiology of 72% of 25 repeated episodes involving 21 men during the first 78 days of active follow-up (5% of the cohort). Chlamydia trachomatis (36%), Neisseria gonorrhoeae (34%), and Ureaplasma urealyticum (19%) were the most common causes of infection identified at enrollment and during subsequent visits (44%, 28%, and 12%, respectively). By univariate analysis, patients with repeated infection ("repeaters") were significantly more likely to report a history of sexually transmitted disease (STD; relative risk [RR], 3) and sex with sex workers (RR, 4) than were nonrepeaters. By multivariate analysis, only STD history was significant (RR, 2.8). Characteristics of repeaters in this cohort suggest that specific patterns may be used to establish screening "profiles" of potential repeaters, by which such individuals might be targeted for aggressive intervention at the time of the initial diagnosis.


Asunto(s)
Personal Militar , Uretritis , Adulto , Chlamydia trachomatis , Estudios de Cohortes , Humanos , Masculino , Neisseria gonorrhoeae , Recurrencia , Factores de Riesgo , Conducta Sexual , Ureaplasma urealyticum , Uretritis/epidemiología , Uretritis/etnología , Uretritis/etiología , Uretritis/microbiología
8.
Clin Infect Dis ; 30(4): 742-8, 2000 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-10770738

RESUMEN

High rates of sexually transmitted diseases (STDs) have been reported in military populations. However, it remains uncertain whether the incidence of STDs is higher among military personnel than in the civilian population. The annual incidence of gonorrhea and chlamydia from 1985 through 1996 at Fort Bragg, North Carolina, was determined by use of a clinic database and demographic information for the entire installation. A direct standardization for age, sex, and race/ethnicity was performed, and the adjusted annual rates among active duty soldiers were compared with rates among men and women in North Carolina and the United States. Results showed that the adjusted incidence of gonorrhea and chlamydia among Fort Bragg soldiers remained higher overall than comparable state and national rates during the period of analyses. The 1996 adjusted chlamydia rates for male and female active duty soldiers were 3-fold to 6-fold higher than rates for males and females in North Carolina and in the United States as a whole. STDs continue to lead to significant morbidity in this representative military population.


Asunto(s)
Infecciones por Chlamydia/epidemiología , Gonorrea/epidemiología , Personal Militar , Adolescente , Adulto , Femenino , Humanos , Incidencia , Masculino , North Carolina/epidemiología
9.
Am J Prev Med ; 18(2): 115-22, 2000 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-10698241

RESUMEN

BACKGROUND: Screening sexually active women for Chlamydia trachomatis is necessary to detect asymptomatic infections. Selective screening is a common strategy because universal screening is too costly in many settings. In order to guide local programs in the choice of selective screening criteria, we examined the performance of previously proposed screening criteria for C. trachomatis. METHODS: A clinic-based, cross-sectional study was conducted in public family planning and sexually transmitted disease (STD) clinics in ten counties in North Carolina. Women (n = 4471 in family planning and n = 2201 in STD clinics) undergoing pelvic examination were enrolled consecutively. Nine sets of screening criteria, including age alone, were compared using sensitivity, specificity, number of tests required and receiver-operator characteristic (ROC) analysis. All women underwent testing with ligase chain reaction assay of cervical specimens to identify C trachomatis infection. RESULTS: The prevalence of C. trachomatis was 7.8% and 11.0% in family planning and STD clinics, respectively. The sensitivities of published criteria ranged from 0.50 to 0.97. Specificities ranged from 0.05 to 0.66. In family planning clinics, the best performing criteria would detect 84% of infections while screening 51% of women. In STD clinics, the same criteria would detect 83% of infections but require testing 67% of women. Testing women aged < or =22 would detect 77% of infections in family planning and 74% of infections in STD clinics, while testing 51% and 48% of the women, respectively. CONCLUSIONS: When site-specific criteria cannot be developed, age alone is an acceptable strategy for selective screening for chlamydial infection.


Asunto(s)
Infecciones por Chlamydia/diagnóstico , Chlamydia trachomatis , Tamizaje Masivo/métodos , Adulto , Instituciones de Atención Ambulatoria , Infecciones por Chlamydia/epidemiología , Estudios Transversales , Servicios de Planificación Familiar , Femenino , Humanos , North Carolina/epidemiología , Prevalencia , Curva ROC , Sensibilidad y Especificidad , Encuestas y Cuestionarios
11.
J Virol ; 73(8): 6271-81, 1999 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-10400718

RESUMEN

We have examined the nature of V3 sequence variability among subtype C human immunodeficiency virus type 1 (HIV-1) sequences from plasma-derived viral RNA present in infected men from Malawi. Sequence variability was assessed by direct sequence analysis of the V3 reverse transcription-PCR products, examination of virus populations by a subtype C V3-specific heteroduplex tracking assay (V3-HTA), and selected sequence analysis of molecular clones derived from the PCR products. Sequence variability in V3 among the subtype C viruses was not associated with the presence of basic amino acid substitutions. This observation is in contrast to that for subtype B HIV-1, where sequence variability is associated with such substitutions, and these substitutions are determinants of altered coreceptor usage. Evolutionary variants in subtype C V3 sequences, as defined by the V3-HTA, were not correlated with the CD4 level in the infected person, while such a correlation was found with subtype B V3 sequences. Viruses were isolated from a subset of the subjects; all isolates used CCR5 and not CXCR4 as a coreceptor, and none was able to grow in MT-2 cells, a hallmark of the syncytium-inducing phenotype that is correlated with CXCR4 usage. The overall sequence variability of the subtype C V3 region was no greater than that of the conserved regions of gp120. This limited sequence variability was also a feature of subtype B V3 sequences that do not carry the basic amino acid substitutions associated with altered coreceptor usage. Our results indicate that altered coreceptor usage is rare in subtype C HIV-1 isolates in sub-Saharan Africa and that sequence variability is not a feature of the V3 region of env in the absence of altered coreceptor usage.


Asunto(s)
Variación Genética , Proteína gp120 de Envoltorio del VIH/genética , Seropositividad para VIH/virología , VIH-1/genética , Fragmentos de Péptidos/genética , Secuencia de Bases , ADN Viral , Evolución Molecular , Heterogeneidad Genética , Proteína gp120 de Envoltorio del VIH/metabolismo , VIH-1/crecimiento & desarrollo , VIH-1/aislamiento & purificación , VIH-1/metabolismo , Humanos , Malaui , Datos de Secuencia Molecular , Ácidos Nucleicos Heterodúplex , Fragmentos de Péptidos/metabolismo , ARN Viral/sangre , Receptores CCR5/metabolismo , Receptores CXCR4/metabolismo
12.
Clin Infect Dis ; 28(5): 1086-90, May 1999.
Artículo en Inglés | MedCarib | ID: med-1381

RESUMEN

Individuals presenting consecutively with genital ulcers in Kingston, Jamaica, underwent serological testing for human immunodeficiency virus (HIV) infection , chlamydial infection, and syphilis. Ulcer material was analyzed by the multiplex polymerase chain reaction (M-PCR) analysis DNA from herpes simplex virus (HSV), Haemophilus ducreyi, and Treponema pallidum was detected in 158 (52.0 percent), 72 (23.7 percent), and 31 (10.2 percent) of 304 ulcer specimens. Of the 304 subjects, 67 (22 percent) were HIV-seropositive and 64 (21 percent) were T. pallidum-seroactive. Granuloma inguinale was clinically diagnosed in nine (13.4 percent) of 67 ulcers negative by M-PCR analysis and in 12 (5.1 percent) of 237 ulcers positive by M-PCR analysis (P = .03). Lymphogranuloma venereum was clinically diagnosed in eight patients. Compared with M-PCR analysis, the sensitivity and specificity of a clinical diagnosis of syphilis, herpes, and chancroid were 67.7 percent, 53.8 percent, and 75 percent and 91.2 percent, 83.6 percent, and 75.4 percent, respectively. Reactive syphilis serology was 74 percent sensitive and 85 percent specific compared with M-PCR analysis. Reported contact with a prostitute in the preceding 3 months was associated with chancroid (P = .009), reactive syphilis serology (P = .011), and HIV infection (P = .007). The relatively poor pleads for syndromic management of genital ulcers in Jamaica. Prevention efforts should be intensified.(Au)


Asunto(s)
Adulto , Femenino , Masculino , Humanos , Enfermedades de los Genitales Femeninos/microbiología , Enfermedades de los Genitales Masculinos/microbiología , Infecciones por VIH/complicaciones , Úlcera/microbiología , VIH-1 , VIH-2 , Jamaica , Linfogranuloma Venéreo/complicaciones , Linfogranuloma Venéreo/diagnóstico , Reacción en Cadena de la Polimerasa , Prevalencia , Factores de Riesgo , Sensibilidad y Especificidad , Simplexvirus/aislamiento & purificación , Treponema pallidum/aislamiento & purificación , Úlcera/complicaciones , Enfermedades de los Genitales Femeninos/complicaciones , Enfermedades de los Genitales Femeninos/diagnóstico , Enfermedades de los Genitales Masculinos/complicaciones , Enfermedades de los Genitales Masculinos/diagnóstico , Haemophilus ducreyi/aislamiento & purificación , Herpes Genital/complicaciones , Herpes Genital/diagnóstico
13.
AIDS ; 13(4): 487-94, 1999 Mar 11.
Artículo en Inglés | MEDLINE | ID: mdl-10197377

RESUMEN

OBJECTIVES: This study was undertaken to determine the relative effect of malaria infection on HIV concentration in blood plasma, and prospectively to monitor viral concentrations after antimalarial therapy. DESIGN: A prospective, double cohort study was designed to compare the blood HIV-1 RNA concentrations of HIV-positive individuals with and without acute malaria illness. Subjects were followed for 4 weeks after successful malaria therapy, or for 4 weeks from enrollment (controls). METHODS: Malawian adults with symptomatic Plasmodium falciparum parasitemia (malaria group) and asymptomatic, aparasitemic blood donors (control group) were tested for HIV-1 antibodies to identify appropriate study groups. The malaria group received antimalarial chemotherapy only and were followed with sequential blood films. In both groups, blood plasma HIV-1 RNA viral concentrations were determined at enrollment and again at 1, 2 and 4 weeks. RESULTS: Forty-seven malaria patients and 42 blood donors were enrolled. At enrollment blood plasma HIV-1 RNA concentrations were approximately sevenfold higher in patients with malaria than in blood donors (medians 15.1 x 10(4) and 2.24 x 10(4) copies/ml, respectively, P = 0.0001). No significant changes in median HIV-1 concentrations occurred in the 21 blood donors followed to week 4 (P = 0.68). In the 27 subjects successfully treated for malaria who were followed to week 4, a reduction in plasma HIV-1 RNA was observed from a median of 19.1 x 10(4) RNA copies/ml at enrollment, to 12.0 x 10(4) copies/ml at week 4, (P = 0.02). Plasma HIV-1 concentrations remained higher in malaria patients than controls (median 12.0 x 10(4) compared with 4.17 x 10(4) copies/ml, P = 0.086). CONCLUSIONS: HIV-1 blood viral burden is higher in patients with P. falciparum malaria than in controls and this viral burden can, in some patients, be partly reduced with antimalarial therapy.


Asunto(s)
Infecciones Oportunistas Relacionadas con el SIDA/virología , VIH-1 , Malaria Falciparum/virología , Carga Viral , Infecciones Oportunistas Relacionadas con el SIDA/tratamiento farmacológico , Adulto , Animales , Femenino , VIH-1/genética , Humanos , Malaria Falciparum/tratamiento farmacológico , Masculino , Estudios Prospectivos , ARN Viral/sangre
14.
AIDS ; 12 Suppl 2: S67-72, 1998.
Artículo en Inglés | MEDLINE | ID: mdl-9792363

RESUMEN

OBJECTIVES: To improve the quality of sexually transmitted disease (STD) case management in Jamaica by providing comprehensive continuing medical education to private practitioners who manage 60% of all STDs on the island. METHODS: Six half-day STD seminars were presented at 3-4-month intervals and repeated in three separate geographic locations. All Jamaican practitioners received invitations. The subjects were as follows: urethritis, genital ulcer disease, HIV infection, vaginal discharge syndrome, STDs in children and adolescents, and a review seminar. The program effectiveness was evaluated with a written, self-reported pre-test and a telephone post-test that measured changes in clinical management. RESULTS: Six hundred and twenty eight practitioners attended at least one seminar. Comparing pre- versus post-test scores, there were practitioner improvement trends in all four of the general STD management categories: counseling/education (69.8-73.3%; P > 0.05); diagnostics/screening (57.2-71.0%; P= 0.042); treatment (68.3-74.5%; P> 0.05); and knowledge (66.4-83.2%; P= 0.002). Obtaining syphilis serologies during pregnancy rose from 38.3 to 83.8% (P= 0.001), and providing effective treatment for gonorrhea rose from 57.8 to 81.1 % (P= 0.002), but correct responses on treatment for mucopurulent cervicitis at the post-test was a low 32.4%. CONCLUSION: The introduction of continuing medical education for improved STD care targeting private physicians in Jamaica was successful based on high attendance rates and self-reported STD management practices. However, efforts should continue to address the weaknesses found in STD management and counseling and to reach the providers who did not participate. In the global effort to reduce HIV transmission by improving STD care services, continuing education programs that target the private sector can be successful and should be included as a standard activity to improve care and provide a public/private link to STD/HIV control.


PIP: The Jamaican Ministry of Health has estimated that over 60% of all sexually transmitted diseases (STDs) are managed within the private sector, where 800 (66%) of the country's 1200 registered physicians practice. To improve the quality of STD case management provided by these practitioners, the Medical Association of Jamaica organized a series of 6 half-day seminars repeated at 3-4 month intervals in three geographic locations between December 1993 and July 1995. Topics addressed included urethritis, genital ulcer disease, HIV/AIDS, vaginal discharge, pelvic inflammatory disease, and STDs in children and adolescents. A total of 628 private practitioners attended at least one seminar and almost half the physicians attended two or more. Comparisons of scores on a written pretest completed before the seminar and those from a post-test conducted by telephone after the seminar revealed significant improvements in all four general STD management categories: counseling/education, diagnostics/screening, treatment, and knowledge. The proportion of practitioners who obtained syphilis serologies during pregnancy rose from 38.3% to 83.8% and those providing effective treatment for gonorrhea increased from 57.8% to 81.1%. Overall, 96% of practitioners were providing some level of risk-reduction counseling at the time of the post-test and 74% were prescribing correct treatment regimens. Ongoing education and motivation by the national STD control program or the Medical Association are recommended to improve STD case management even further.


Asunto(s)
Manejo de Caso/normas , Sector Privado , Enfermedades de Transmisión Sexual/terapia , Adolescente , Niño , Educación Médica Continua , Femenino , Humanos , Jamaica/epidemiología , Embarazo
15.
J Infect Dis ; 177(6): 1742-6, 1998 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-9607862

RESUMEN

High levels of human immunodeficiency virus type 1 (HIV-1) replication, as reflected in HIV-1 RNA concentrations in blood and semen, probably contribute to both rapid disease progression and enhanced sexual transmission. Semen and blood were collected from 49 Malawian and 61 US and Swiss (US/Swiss) HIV-1-seropositive men with similar CD4 cell counts and no urethritis or exposure to antiretroviral drugs. Median seminal plasma and blood plasma HIV-1 RNA concentrations were >3-fold (P = .034) and 5-fold (P = .0003) higher, respectively, in the Malawian men. Similar differences were observed in subsets of the Malawian and US/Swiss study groups matched individually for CD4 cell count (P = .035 and P < .002, respectively). These observations may help explain the high rates of HIV-1 sexual transmission and accelerated HIV-1 disease progression in sub-Saharan Africa.


Asunto(s)
Seropositividad para VIH/virología , VIH-1 , Semen/virología , Adulto , África del Sur del Sahara , Estudios Transversales , Seropositividad para VIH/sangre , Seropositividad para VIH/inmunología , VIH-1/genética , Humanos , Masculino , ARN Viral/sangre
16.
Sex Transm Infect ; 74(Suppl. 1): S123-7, Jun. 1998.
Artículo en Inglés | MedCarib | ID: med-1415

RESUMEN

OBJECTIVES: To assess sexually transmitted diseases (STD) among women attending Jamaican family planning clinics and to evaluate decision models as alternatives to STD laboratory diagnosis. METHODS: Women attending two family planning clinics in Kingston were interviewed and tested for syphilis seroreactivity using toluidine red unheated serum test and Treponema pallidum haemagglutination, for gonorrhoea using culture, for chalamydial infection using enzyme linked immunoassay, and for trichomoniasis using culture. Urine was tested with leucocyte esterase dipstick (LED). The women were treated based upon a clinical algorithm. Computer simulations explored the use of risk inclusive decision models for detection of cervical infection and/or trichomoniasis. RESULTS: Among 767 women, 206 (26.9 percent) had at least one STD. The prevalence of gonorrhoea was 2.7 percent: chlamydial infection 12.2 percent, gonococcal and/or chlamydial cervical infection 14.1 percent; trichomoniasis 11.5 percent; syphilis seroreactivity 5.9 percent. The clinical algorithm was 3.7 percent sensitive and 96.7 percent specific in detecting cervical infection. Detection of cervical infection and/or trichomoniasis was 63.5 percent sensitive and 60.6 percent specific using LE and 57.7 percent sensitive and 46.2 percent specific using the risk inclusive algorithm employed in Jamaica STD clinics. Either cervical friability or LED (+) or family planning clinic attender less than 25 years old with more than one sexual partner in the past year was 72.5 percent sensitive and 53.3 percent specific. The positive predictive values of the STD clinic algorithm, LED, and two developed decision models ranged from 25.0 percent to 33.4 percent to detect cervical infection and/or trichomoniasis in these women. CONCLUSION: STDs were quite prevalent in these mainly asymptomatic family planning clinic attenders. None of the evaluated decision models can be considered a good alternative to case detection using laboratory diagnosis. Appropriate detection tools are needed. In the meantime, available STD control strategies should be maximised, such as promotion of condom use; adequate treatment of symptomatic STD patients and partners; and education of women and men (AU)


Asunto(s)
Adulto , Femenino , Humanos , Servicios de Planificación Familiar/estadística & datos numéricos , Enfermedades de Transmisión Sexual/epidemiología , Algoritmos , Toma de Decisiones , Pruebas Enzimáticas Clínicas , Jamaica/epidemiología , Prevalencia , Medición de Riesgo , Parejas Sexuales , Serodiagnóstico de la Sífilis , Enfermedades de Transmisión Sexual/diagnóstico
17.
West Indian med. j ; 47(suppl. 2): 47, Apr. 1998.
Artículo en Inglés | MedCarib | ID: med-1840

RESUMEN

The purpose of this study was to determine the aetiology of genital ulcers (GUD) in STD clinic attenders, using state-of-the-art diagnostic tests, and to compare this with clinical diagnosis. Patients attending an STD clinic in Kingston, Jamaica for a new STD complaints were screened for GUD and clinically diagnosed. Swabs of ulcers were taken and tested for T. pallidum (TP), herpes simplex virus (HSV), and H. ducreyi (HD), using polymerase chain reaction (PCR). Sera were tested for syphilis and HIV infection. Of 4873 patients screened, 304 (6.2 percent) had GUD. In patients with ulcers, 158 (52 percent) were HSV (+), 73 (24 percent) were HD (+), and 31 (10 percent) were TP (+). Dual infections were identified in 20 (7 percent) ulcers. Clinically, herpes was diagnosed in 85/158 (54 percent) of HSV (+) ulcers, chancroid in 54/72 (75 percent) of HD (+) ulcers, and syphilis in 21/31 (68 percent) of TP (+) ulcers. Over three-quarters of GUD in Kingston had defined aetiology for herpes, chancroid or syphilis using PCR, with herpes being the commonest. Uniformly, clinical diagnosis performed poorly and Jamaican algorithms for the management of GUD will need to take into account the findings of this study, and should include counselling for herpes.(AU)


Asunto(s)
Humanos , Condiloma Acuminado , Enfermedades de los Genitales Femeninos/etiología , Enfermedades de los Genitales Masculinos/etiología , Herpes Simple/diagnóstico , Sífilis/diagnóstico , Jamaica
18.
J Infect Dis ; 177(1): 224-7, 1998 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-9419194

RESUMEN

CD4 cell counts and blood plasma and seminal plasma human immunodeficiency virus type 1 (HIV-1) concentrations were compared in HIV-1 RNA-seropositive men with urethritis and with or without genital ulcer disease (GUD). GUD was associated with lower CD4 cell counts (median, 258 vs. 348/microL) and increased blood plasma HIV-1 RNA (median, 240 x 10[3] vs. 79.4 x 10[3] copies/mL). Men with nongonococcal urethritis and GUD shed significantly greater quantities of HIV-1 in semen (median, 195 x 10[3] vs. 4.0 x 10[3] copies/mL) than men with nongonococcal urethritis without GUD. These levels decreased approximately 4-fold following antibiotic therapy. The results indicate an association between GUD and increased blood HIV-1 RNA levels. Increased HIV-1 in semen was demonstrated in some men with GUD; such an increase could lead to increased transmission, thus complicating interpretation of the role of the genital ulcer itself in the infectiousness of HIV. Reasons for increased HIV RNA in semen in men with GUD remain to be determined.


Asunto(s)
Enfermedades de los Genitales Masculinos/complicaciones , Infecciones por VIH/complicaciones , Infecciones por VIH/inmunología , VIH-1/aislamiento & purificación , ARN Viral/aislamiento & purificación , Úlcera/complicaciones , Adulto , Recuento de Linfocito CD4 , Transmisión de Enfermedad Infecciosa , Infecciones por VIH/epidemiología , Humanos , Malaui/epidemiología , Masculino , Plasma/virología , ARN Viral/análisis , ARN Viral/sangre , Semen/virología , Enfermedades de Transmisión Sexual/complicaciones , Uretritis/complicaciones
19.
Sex Transm Infect ; 74 Suppl 1: S50-8, 1998 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-10023354

RESUMEN

OBJECTIVE: To evaluate the performance of the WHO algorithm for the detection of cervical infection in women presenting with vaginal discharge and modify the risk assessment score for optimum effectiveness in Malawi. METHODS: 550 consecutive women presenting with non-ulcerative genitourinary complaints were interviewed and examined. Cervical infection was defined as presence of Neisseria gonorrhoeae on culture and/or Chlamydia trachomatis by EIA. Other laboratory investigations included wet mount microscopy, serology for syphilis and HIV, LED testing of cervical and vaginal secretions, and pH testing of vaginal fluid. Sensitivity, specificity, and positive predictive values (PPV) of different algorithms were determined in the analysis. RESULTS: Cervical infection was identified in 19.5% of women (17.1% gonorrhoea, 3.7% chlamydial infection). The sensitivity/specificity/PPV of the WHO risk assessment were 43%/73%/28%, respectively by history and 62%/61%/27% with the addition of speculum examination. Using Malawi results to modify the risk assessment improved the performance to 61%/68%/31% respectively by history alone, which increased to 73%/64%/33% with bimanual examination and 72%/56%/29% with speculum examination. CONCLUSION: The sensitivity of the WHO risk assessment is low for the detection of cervical infection in Malawi. Although the Malawi risk assessment performed somewhat better on history alone, this study identified external and bimanual examination variables that improved the diagnostic performance of the algorithm in settings where speculum examination is not possible. Although the PPVs of the algorithms are low, country specific risk assessments can provide a framework for management until simple, affordable diagnostic tests for the definitive diagnosis of cervical infection are available.


Asunto(s)
Algoritmos , Infecciones por Chlamydia/diagnóstico , Gonorrea/diagnóstico , Enfermedades del Cuello del Útero/microbiología , Excreción Vaginal/microbiología , Adolescente , Adulto , Distribución por Edad , Infecciones por Chlamydia/complicaciones , Infecciones por Chlamydia/terapia , Femenino , Gonorrea/complicaciones , Gonorrea/terapia , Humanos , Modelos Logísticos , Malaui , Persona de Mediana Edad , Examen Físico , Evaluación de Programas y Proyectos de Salud , Medición de Riesgo , Sensibilidad y Especificidad , Factores Socioeconómicos , Enfermedades del Cuello del Útero/terapia , Excreción Vaginal/terapia , Organización Mundial de la Salud
20.
AIDS ; 12(Suppl. 2): S67-72, 1998.
Artículo en Inglés | MedCarib | ID: med-1421

RESUMEN

OBJECTIVES: To improve the quality of sexually transmitted disease (STD) case management in Jamaica by providing comprehensive continuing medical education to private practitioners who manage 60 percent of all STDs on the island. METHODS: Six half-day STD seminars were presented at 3-4 month intervals and repeated in three separate geographic locations. All Jamaican practitioners received invitations. The subjects were as follows: urethritis, genital ulcer disease, HIV infection, vaginal discharge syndrome, STDs in children and adolescents, and a review seminar. The program effectiveness was evaluted with a written, self-reported pre-test and a telephone post-test that measured changes in clinical management. RESULTS: Six hundred and twenty eight practitioners attended at least one seminar. Comparing pre-versus post-test scores, there were practitioner improvement trends in all four of the general STD management categories: counseling/education (69.8-73.3 percent; P > 0.05); diagnostics/screening (57.2-71.0 percent; P = 0.042); treatment (68.3-74.5 percent; P > 0.05)l and knowledge (66.4-83.2 percent; P = 0.002). Obtaining syphilis serologies during pregnancy rose from 38.3 to 83.8 percent (P = 0.001), and providing effective treatment for gonorrhea rose form 57.8 to 81.1 percent (P = 0.002), but correct responses on treatment for mucopurulent cervicitis at the post-test was a low 32.4 percent. CONCLUSION: The introduction of contiuing medical education for improved STD care targetting private physicians in Jamaica was successful based on high attendance rates and self-reported STD management practices. However, efforts should continue to address the weaknesses found in STD management and counseling and to reach the providers who did not participate. In the global effort to reduce HIV transmission by improving STD care services. continuing education programs that target the private sector can be successful and should be included as standard activity to improve care and providee a public/private link to STD/HIV control.(Au)


Asunto(s)
Niño , Femenino , Humanos , Embarazo , Adolescente , Sector Privado , Enfermedades de Transmisión Sexual/terapia , Manejo de Caso/normas , Educación Médica Continua , Jamaica/epidemiología
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