Incidence of external genital lesions related to human papillomavirus among Mexican men. A cohort study / Incidencia de lesiones genitales externas relacionadas con el virus del papiloma humano entre hombres mexicanos. Un estudio de cohorte

Abstract: Objective: To determine external genital lesion (EGL) incidence -condyloma and penile intraepithelial neoplasia (PeIN)- and genital HPV-genotype progression to these EGLs. Materials and methods: Participants (healthy males 18-74y from Cuernavaca, Mexico, recruited 2005-2009, n=954) underwent a questionnaire, anogenital examination, and sample collection every six months; including excision biopsy on suspicious EGL with histological confirmation. Linear array assay PCR characterized 37 high/low-risk HPV-DNA types. EGL incidence and cumulative incidence were calculated, the latter with Kaplan-Meier. Results: EGL incidence was 1.84 (95%CI=1.42-2.39) per 100-person-years (py); 2.9% (95%CI=1.9-4.2) 12-month cumulative EGL. Highest EGL incidence was found in men 18-30 years: 1.99 (95%CI=1.22-3.25) per 100py. Seven subjects had PeIN I-III (four with HPV16). HPV11 most commonly progresses to condyloma (6-month cumulative incidence=44.4%, 95%CI=14.3-137.8). Subjects with high-risk sexual behavior had higher EGL incidence. Conclusion: In Mexico, anogenital HPV infection in men is high and can cause condyloma. Estimation of EGL magnitude and associated healthcare costs is necessary to assess the need for male anti-HPV vaccination.

Resumen: Objetivo: Determinar incidencia de lesiones genitales externas (LGE) -condiloma y neoplasia intraepitelial del pene (NIP)- y progresión de genotipos de VPH a LGE. Material y métodos: Se aplicaron cuestionarios, examen anogenital y recolección de muestras cada seis meses a hombres sanos (18-74 años, de Cuernavaca, México, reclutados 2005-2009, n=954) con biopsia y confirmación histológica. Se caracterizaron 37 tipos de ADN-VPH; se calculó incidencia de LGE (cumulativa con Kaplan-Meier). Resultados: Incidencia de LGE=1.84 (IC95%=1.42-2.39) por 100-persona-años (pa); 2.9% (IC95%=1.9-4.2) LGE acumulativa a 12 meses. Mayor incidencia de LGE entre hombres 18-30 años; 1.99 (IC95%=1.22-3.25) por 100pa. Siete sujetos tuvieron NIP I-III. VPH-11 más comúnmente progresa a condiloma (incidencia acumulativa a seis meses=44.4%, IC95%=14.3-137.8). Los sujetos con comportamiento sexual de alto riesgo tuvieron mayor incidencia de LGE. Conclusiones: En México la infección anogenital con VPH es alta y puede causar condiloma. La estimación de magnitud de LGE y los costos sanitarios asociados se necesita para evaluar la necesidad de vacunación contra VPH en hombres.

Prevalence and incidence of anal human papillomavirus infection in Mexican men: Need for universal prevention policies / Prevalencia e incidencia de infección por virus de papiloma humano en canal anal en hombres mexicanos: Necesidad de políticas de prevención universal

Abstract: Objective: Describe the natural history of anal HPV among men. Materials and methods: Prospective study among men 18-70 years (n=665), from Cuernavaca, Mexico who completed questionnaires and provided specimens (HPV genotyped) at enrollment and 1+ follow-up visit. HPV prevalence and incidence were estimated. Prevalence ratios were calculated with Poisson regression using robust variance estimation. Person-time for incident HPV infection was estimated using number of events modeled as Poisson variable for total person-months. Results: Anal infection prevalence: any HPV type=15%, high-risk=8.4%, HPV16=1.4%, tetravalent vaccine types (4vHPV)=4.4%, nonavalent vaccine types (9vHPV)=6.3%. Factors associated with prevalence: 50+ lifetime female sex partners (adjusted prevalence ratio, a PR=3.25, 95% CI:1.12-9.47), 10+ lifetime male sex partners (aPR=3.06, 95%CI:1.4-6.68), and 1+ recent male anal sex partners (aPR=2.28, 95%CI:1.15-4.5). Anal incidence rate: high-risk HPV=7.8/1 000 person-months (95%CI:6.0-10.1), HPV16=1.8/1 000 person-months (95%CI:1.1-2.9),4vHPV=3.4/1 000 person-months (95%CI:2.3-4.9) and 9vHPV=5.5/1000 person-months (95%CI:4.1-7.5). Conclusions: Implementation of universal HPV vaccination programs, including men, is a public health priority.

Resumen: Objetivo: Generar evidencia que apoye la vacunación universal contra VPH. Material y métodos: Estudio prospectivo con hombres 18-70 años (n=665) de Cuernavaca, México con cuestionarios y genotipificación de VPH en muestras (2+mediciones). Se estimó prevalencia e incidencia; se calcularon tasas de prevalencia con regresión Poisson. Se estimó persona-tiempo para infecciones incidentes. Resultados: Prevalencia de infección anal: cualquier tipo de VPH=15%, alto-riesgo=8.4%, VPH16=1.4%, tipos en vacuna tetravalente=4.4% y tipos en vacuna nonavalente=6.3%. Factores asociados con infección prevalente: 50+ parejas sexuales femeninas en la vida (tasa de prevalencia ajustada, TPa=3.25, IC95%:1.12-9.47); 10+ parejas sexuales masculinas en la vida (TPa=3.06, IC95%:1.4-6.68) y 1+ parejas masculinas (sexo anal) recientes (TPa=2.28, IC95%:1.15-4.5). Tasas de incidencia para infección anal: VPH alto-riesgo=7.8/1000 persona-meses (IC95%:6.0-10.1), VPH 16=1.8/1000 persona-meses (95%IC:1.1-2.9), tipos en vacuna tetravalente=3.4/1000 persona-meses y tipos en vacuna nonavalente=5.5/1000 persona-meses. Conclusiones: Implementación de programas de vacunación universal (incluyendo hombres) contra VPH es una prioridad en salud pública.

Traditional male circumcision in eastern and southern Africa: a systematic review of prevalence and complications

Objective To systematically review studies on the prevalence and complications of traditional male circumcision (i.e. circumcision by a traditional provider with no formal medical training); whose coverage and safety are unclear. Methods We systematically searched databases and reports for studies on the prevalence and complications of traditional male circumcision in youth 10-24 years of age in eastern and southern Africa; and also determined the ages at which traditional circumcision is most frequently performed.Findings Six studies reported the prevalence of traditional male circumcision; which had been practised in 25-90of all circumcised male study participants. Most circumcisions were performed in boys 13-20 years of age. Only two of the six studies on complications reported overall complication rates (35and 48) following traditional male circumcision. The most common complications were infection; incomplete circumcision requiring re-circumcision and delayed wound healing. Infection was the most frequent cause of hospitalization. Mortality related to traditional male circumcision was 0.2. Conclusion Published studies on traditional male circumcision in eastern and southern Africa are limited; thus; it is not possible to accurately assess the prevalence of complications following the procedure or the impact of different traditional practices on subsequent adverse events. Also; differences in research methods and the absence of a standard reporting format for complications make it difficult to compare studies. Research into traditional male circumcision procedures; practices and complication rates using standardized reporting formats is needed

Male circumcision and HIV/AIDS Risk - Analysis of the scientific evidence

"Objective: The aim of this review was to evaluate the scientific evidence supporting the hypothesis that male circumcision reduces the risk of HIV infection and consequently the incidence of acquired immunodeficiency syndrome (AIDS). Patients and Methods: We performed a literature search of the major databases (Medline; Embase; Cochrane Library; Biosis and Science Citation Index) for papers published in the period 1999 to 2008; using the terms ""male circumcision""; ""HIV infection"" and ""sexually transmitted infection;"" plus the combination of the search terms ""foreskin"" and ""HIV receptor"" to identify 1;048 articles. We reviewed the abstracts to identify 278 articles meriting detailed review. This detailed review considered how well individual studies were designed and carried out; using a standard checklist to provide a systematic quality rating for individual studies. This process identified a total of 80 papers; which were rated following the level of evidence and grade of recommendation scales modified from the Oxford Center for Evidence-Based Medicine. Results: Detailed analysis of the selected articles on male circumcision and HIV infection risk revealed the following. Systematic reviews; meta-analyses and modeling studies: there were 11 papers; 10 positive (favoring circumcision) and 1 negative; of the 10 positive studies; 4 were level 3 evidence; 5 were level 2 and 1 was level 1 evidence. Randomized controlled trials: there were 3 studies; all positive with level 1 evidence. Non-randomized cohort studies: there were 6 papers; 5 were positive (2 level 3 and 3 level 2 evidence) and 1 was negative (level 3 evidence). Casecontrol studies: there were 12 studies; 11 positive (all level 3) and 1 negative (level 3 evidence). Case series: there were 2 studies; both positive (level 3 evidence). Expert opinion: there were 34 studies; 30 positive (15 level 4; 15 level 3 evidence); 2 negative (both level 4) and 2 neutral (both level 4 evidence). Cost-effectiveness studies: there were 3 studies; all positive; all level 2 evidence. Pertinent biological studies: there were 3 studies; all positive; all level 4 evidence. The three large; exceptionally well-done randomized; controlled trials of adult male circumcision among consenting; healthy men in three African countries enrolled a total of 10;908 uncircumcised; HIV-negative adult men. The cumulative HIV infection risk estimated using intention-to-treat Kaplan-Meier analysis showed an overall rate ratio (RR) of 0.42 (95confidence interval (CI) 0.31-0.57); corresponding to a protective effect of 58(95CI 43-69). Meta-analysis of the ""as-treated"" results of the three trials showed even stronger protection against HIV infection in the circumcision group (summary RR 0.35; 95CI 0.24-0.54). Conclusions: Rigorous analysis of the available scientific evidence clearly supports a positive recommendation that male circumcision should be actively promoted in populations at high risk of HIV infection. There is a need to provide safe male circumcision services for high-risk populations; because this is one of very few proven HIV prevention strategies. Male circumcision provides a much-needed addition to the limited HIV prevention armamentarium. The challenges to implementation must now be faced"

Some characteristics of the HIV epidemic in Morocco

The first case of AIDS in Morocco was declared in 1986 and since then the number of AIDS cases has steadily increased. According to the Ministry of Health, the cumulative number of AIDS cases in December 2002 was 1085. HIV in Morocco is acquired mainly through heterosexual intercourse. Individuals aged between 30 and 39 years and in the regions of Marrakech and Agadir have been the most affected. Monitoring of the trend of the epidemic by sentinel surveillance surveys indicates that Morocco is still a low prevalence zone, since prevalence among pregnant women is less than 1%. The estimated number of HIV-infected people in Morocco is around 15 000. It is not clear why the epidemic here has not evolved as it has in the sub-Saharan countries where it is spreading at an alarming rate. Late introduction of HIV-1 subtype B in Morocco, which is relatively less transmissible, circumcision and reduced risk behaviours of Muslims may explain this. Nonetheless, because prevalence has increased in recent years, unless preventive measures are strengthened, the HIV epidemic will worsen in Morocco

Complicaçäo de circuncisäo utilizando o Plastibell / Complication of circumcision using Plastibell device

O autor relata um caso incomum numa criança de 1 ano e 11 meses, com migraçäo proximal no eixo pemiano do anel de plástico do Plastibell, que necessitou de remoçäo cirurgica sob sedaçäo. Ele enfatiza as possíveis complicaçöes deste tradicional procedimento cirúrgico baseado na revisäo da literatura

Balanitis plasmocelular / Plasmocellular balanitis

Se hace una breve revisión de la literatura y se presentan 3 casos de Balanitis de Zoon. El diagnóstico se confirmó por estudio histopatológico. La circuncisión es el tratamiento de elección