Clinical-epidemiological characterization of human anal papilloma virus infection coloproctology unit: Central University Hospital Dr. "Antonio Maria Pineda"

Human papillomavirus (HPV) infection is one of the most common sexually transmitted viral diseases. A descriptive cross-sectional study was conducted with the purpose of clinically and epidemiologically characterizing anal HPV infection in patients who attended the Benign Orificial Pathology Consultation of the Coloproctological Unit at the Dr. "Antonio María Pineda" Central University Hospital, during the period March 2022 -February 2023, by selecting 288 patients whose average age was 47.09 ± 14.61 years, being the 41-50 years old group (29.17%) and the 51-60 years old group (19.44%) the most affected groups by pathologies of the anal region, with a predominance of male (54.17%). The sociodemographic characteristics with the highest frequency included married (48.61%) and single (47.22%); secondary level of education (44.44%) and traders (18.05%) and housewives (15, 28%) as predominant occupations. The risk factors were represented by onset of sexual intercourse between 16-20 years of age (65.28%), heterosexuality (91.67%), 22.22% reported having anal sex and 5.56% oral sex. Likewise, 5.56% were reported with a history of genital HPV and 4.17% were HIV positive. In addition, 48.61% stated not to use condoms. The initial clinical diagnosis included hemorrhoidal disease (30.55%), anal fistula (25%) and anal fissure (18.05%), and one patient (1.39%) with anal HPV infection. Anal cytology results showed 8.33% flat epithelial cells with cytopathic changes suggestive of HPV infection and 1.39% squamous cells with cytopathic changes suggestive of HPV infection: 50% mild inflammatory negative for malignancy and 33.33% flat epithelial cells without atypia. In conclusion, the anal cytology investigation should continue to determine the actual frequency of anal HPV infection. (AU)

Anal abscess microbiology as an anal fistula predictor / Microbiologia de abscesso anal como preditivo de fístula anal

ABSTRACT In order to determine the microbiology of anal abscess as a predictor of anal fistulas in patients who attended the external consultation of the Coloproctology unit of the Dr. Antonio María Pineda University Central Hospital, a prospective, descriptive, longitudinal study was conducted from September 2018 to July 2019. In this study, the population consisted of patients with a diagnosis of anal abscess, without associated comorbidities or contraindications for surgery, who agreed to be included in the study. A non-probabilistic, intentional sample consisting of 42 patients was determined. An appointment-based study protocol was applied by outpatient for patients who met the inclusion criteria applied, to perform due medical history through anamnesis, physical examination and culture taking of suppuration from the anal abscess to subsequently establish medical and surgical behavior thereof. The results were expressed in absolute numbers and percentages, a prevalence of ischiorectal abscesses was observed, followed by deep post-anal space abscesses. Anaerobic bacteria were isolated in 100% of the sample. In all fistulized patients, E. Coli was isolated as a predominant germ.

RESUMO Um estudo prospectivo, descritivo e longitudinal foi realizado de setembro de 2018 a Julho 2019 para determinar a microbiologia do abscesso anal como preditivo de fístulas anais em pacientes que compareceram à consulta externa da unidade de Coloproctologia do Hospital Central da Universidade Dr. Antonio María Pineda. Neste estudo, a população foi composta por pacientes com diagnóstico de abscesso anal, sem comorbidades ou contraindicações associadas à cirurgia, que concordaram em participar do estudo. Uma amostra intencional não probabilística, composta por 42 pacientes foi determinada. Um protocolo de estudo com base na consulta em regime ambulatorial foi aplicado aos pacientes que atenderam os critérios de inclusão estabelecidos, para realizar a anamnese, o exame físico e a devida cultura da supuração do abscesso anal para posteriormente estabelecer o comportamento médico e cirúrgico. Os resultados foram expressos em números absolutos e porcentagens, observando-se a prevalência de abscessos isquiorretais, seguidos por abscessos profundos no espaço pós-anal. Bactérias anaeróbias foram isoladas em 100% das amostras. Em todos os pacientes com fístulas, E. Coli foi isolada como um germe predominante.

Chagasic megacolon in Venezuela - case report / Megacólon chagásico na Venezuela

ABSTRACT Chagasic megacolon is the second most frequent cause of manifestation of the digestive forms of Chagas disease (trypanosoma cruzi parasitosis), characterized by progressive pseudo-occlusive symptoms or chronic constipation, caused by an alteration in the functioning of the colonic wall musculature. In Venezuela, cases of chagasic disease reported in the past are referred to chagasic heart disease, this being the first documented case of chagasic megacolon. We broach herein a case of chagasic megacolon in which early diagnosis and prompt surgical treatment led to a successful outcome.

RESUMO O megacólon chagásico é a segunda causa mais frequente de manifestação das formas digestivas da doença de Chagas (parasitose do Trypanosoma cruzi), caracterizado por sintomas pseudo-oclusivos progressivos ou constipação crônica, causado por uma alteração no funcionamento da musculatura da parede do cólon. Na Venezuela, os casos da doença chagásica relatados no passado são referidos como doença cardíaca chagásica, sendo este o primeiro caso documentado de megacólon chagásico. Neste artigo, abordamos um caso de megacólon chagásico no qual o diagnóstico precoce e o tratamento cirúrgico imediato levaram a um resultado bem-sucedido.

Vulnerabilidad social y conductas sexuales de riesgo en un grupo de adolescentes chilenos, 2009. Estudio de corte transversal / A cross-sectional study of social vulnerability and risky sexual conduct in a group of Chilean adolescents, 2009

Objetivo: analizar la relación entre vulnerabilidad social y conductas sexuales de riesgo en un grupo de adolescentes chilenos. Materiales y métodos: estudio transversal en adolescentes de la comuna Chiguayante, región del Bío-Bío, Chile, año 2009. La muestra fue de 297 adolescentes, 154 mujeres y 143 varones. Se utilizó la ficha CLAP OPS/OMS y un instrumento de vulnerabilidad social y conducta sexual. Se aplicó t-Student y Ji 2 (p < 0,05). Resultados: la edad promedio fue 16,5 ± 1,5 años en varones y 16,4 ± 1,5 mujeres. El 63% vive con ambos padres. El 74% describe sus relaciones familiares como buenas y excelentes. El 44% de los adolescentes que han iniciado actividad sexual definen sus relaciones familiares como regulares, malas o sin relación frente al 20% que no ha iniciado actividad sexual (p = 0,033); el 62% de los adolescentes que han iniciado actividad sexual percibe escaso o nulo apoyo familiar frente al 42% de los adolescentes que no han iniciado actividad sexual (p = 0,0031). El 51% señala que hay delincuencia en su entorno social próximo. No hubo diferencias significativas al asociar variables de vulnerabilidad social con uso de métodos anticonceptivos y el número de parejas sexuales. Las relaciones sexuales asociadas al consumo de alcohol y drogas fueron superiores en varones (21%) que en mujeres (10%) (p = 0,019); las relaciones sexuales sin protección fueron superiores en mujeres (35%) que en varones (20%) (p = 0,05).Conclusión: se reconoce la importancia de la familia en el proceso de formación de la conducta sexual de las y los adolescentes.

Objective: Analyzing the relationship between social vulnerability and risky sexual conduct in a group of Chilean adolescents. Materials and methods: This was a crosssectional study of adolescents living in the Chiguayante commune in the Bío-Bío region of Chile, during 2009. The sample consisted of 297 adolescents (154 female, 143 male). PAHO/WHO Latin-American Perinatology Centre record cards and a social vulnerability and sexual conduct instrument were used. Student’s t-test and the chi-square test (p < 0.05) were used for analyzing the data. Results: Average age was 16.5 ± 1.5 years for males and 16.4 ± 1.5 for females; 63% lived with both parents, 74% described their family relationships as being good and/or excellent. 44% of the adolescents in the study who had begun sexual activity defined their family relationships as regular, poor or lacking compared to 20% who had not begun sexual activity (p = 0.033). 62% of the adolescents who had begun sexual activity perceived very limited or no family support compared to 42% of them who had not initiated sexual activity stating the same (p = 0.0031). 51% stated that there was delinquency in their close social setting. There were no significant differences when associating social vulnerability with using conceptive methods and number of sexual partners. Sexual relationships associated with drinking alcohol and taking drugs was greater in males (21%) than in females (10%) (p = 0.019). Engaging in unprotected sexual relationships was greater in females (35%) than in males (20%), (p = 0.05).Conclusion: It was recognized that the family played an important role in forming adolescents' sexual conduct.

Actualización en lupus neuro-psiquiátrico con énfasis en déficit cognitivo / An update on neuropsychiatric lupus with emphasis in cognitive dysfunction

Background: physically and psychologically. We review herein the nomenclature and case definitions for neuropsychiatric lupus syndromes proposed by the American College of Rheumatology in 1999. We emphasize cognitive dysfunction and discuss etiological hypotheses, especially those related to the presence of antineuronal autoantibodies.

Haem oxygenase 1 expression is altered in monocytes from patients with systemic lupus erythematosus.

Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by multiple functional alterations affecting immune cells, such as B cells, T cells, dendritic cells (DCs) and monocytes. During SLE, the immunogenicity of monocytes and DCs is significantly up-regulated, promoting the activation of self-reactive T cells. Accordingly, it is important to understand the contribution of these cells to the pathogenesis of SLE and the mechanisms responsible for their altered functionality during disease. One of the key enzymes that control monocyte and DC function is haem oxygenase-1 (HO-1), which catalyses the degradation of the haem group into biliverdin, carbon monoxide and free iron. These products possess immunosuppressive and anti-inflammatory capacities. The main goal of this work was to determine HO-1 expression in monocytes and DCs from patients with SLE and healthy controls. Hence, peripheral blood mononuclear cells were obtained from 43 patients with SLE and 30 healthy controls. CD14(+) monocytes and CD4(+) T cells were sorted by FACS and HO-1 expression was measured by RT-PCR. In addition, HO-1 protein expression was determined by FACS. HO-1 levels in monocytes were significantly reduced in patients with SLE compared with healthy controls. These results were confirmed by flow cytometry. No differences were observed in other cell types, such as DCs or CD4(+) T cells, although decreased MHC-II levels were observed in DCs from patients with SLE. In conclusion, we found a significant decrease in HO-1 expression, specifically in monocytes from patients with SLE, suggesting that an imbalance of monocyte function could be partly the result of a decrease in HO-1 expression.

[An update on neuropsychiatric lupus with emphasis in cognitive dysfunction]. / Actualización en lupus neuro-psiquiátrico con énfasis en déficit cognitivo.

BACKGROUND: Patients with systemic lupus erythematosus (SLE) suffer from a number of neuropsychiatric (NP) symptoms throughout their disease affecting them both physically and psychologically. We review herein the nomenclature and case definitions for neuropsychiatric lupus syndromes proposed by the American College of Rheumatology in 1999. We emphasize cognitive dysfunction and discuss etiological hypotheses, especially those related to the presence of antineuronal autoantibodies.

Suspensión de terapia dialítica. Análisis de un problema ético-clínico / No disponible

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