ABSTRACT Objective: To identify risk factors to pre-surgical complications in patients with cystic echinococcosis (CE) in endemic areas of Peru. Materials and methods: Study of cases (n=43) and controls (n=127) not paired was designed, with a case-control ratio of 1:3 based on a secondary source. The case was defined as the patient with CE who presented with pre-surgical complications related or not with the disease and the control without pre-surgical complication. The response variable was preoperative complication and the exposition ones were age, gender, degree of instruction, occupation, number, size (diameter in centimeters) and location of the cyst. To identify the risk factors, a bivariate logistic regression analysis was performed to obtain the crude odds ratios (cOR) and then the variables with significant association were adjusted by a multivariate logistic regression analysis using the Stata® version 14 software, obtaining the adjusted odds ratios (aOR). Results: Fifty eight point eight percent (24/43) of the cases were women and the median age was 35 years and 59.1% (75/127) of the controls correspond to the female gender and the median age was 27 years. The multivariate logistic regression analysis found that being over 56 years old has an aOR 2.91 (95% confidence interval [CI]: 1.007-8.433) and having ≥3 cysts has an aOR 4.26 (95% CI: 1.62-11.22) for present pre-surgical complications in patients with CE. Conclusion: It was identified that being over 56 years old and having ≥3 cysts are risk factors for presenting pre-surgical complications in CE.

RESUMEN Objetivo: Identificar los factores asociados a complicaciones prequirúrgicas en pacientes con equinococosis quística (EC) en áreas endémicas del Perú. Materiales y métodos: Se diseñó un estudio de casos (n=43) y controles (n=127), sin emparejamiento, de fuente secundaria con una relación de caso-control de 1:3. Se definió como «caso» al paciente con EC que presentó complicaciones prequirúrgicas relacionadas o no con la enfermedad y el control sin complicación prequirúrgica. La variable respuesta fue complicación prequirúrgica y las de exposición fueron edad, género, grado de instrucción, ocupación, número de quistes, tamaño (diámetro en centímetros) y localización del quiste. Para identificar los factores de riesgo, primero se calcularon los odds ratio crudos (ORc) mediante regresión logística; luego las variables que mostraron asociación significativa se ajustaron mediante análisis multivariado de regresión logística utilizando Stata® versión 14, y se obtuvieron los odds ratio ajustados (ORa). Resultados: El 55,8% (24/43) de los casos fueron mujeres y la mediana de edad fue 35 años. Entre los controles, el 59,1% (75/127) fueron mujeres y la mediana de edad fue 27 años. En el análisis de regresión logística multivariado, se encontró que tener más de 56 años tiene un ORa de 2,91 (intervalo de confianza [IC] 95%: 1,01-8,43) y tener ≥3 quistes tiene un ORa de 4,26 (IC 95%: 1,62-11,22) para presentar complicaciones prequirúrgicas en pacientes con EQ. Conclusión: Los factores asociados para presentar complicaciones prequirúrgicas en EQ fueron el tener más de 56 años y el tener ≥3 quistes.

ABSTRACT Objective: To identify risk factors to pre-surgical complications in patients with cystic echinococcosis (CE) in endemic areas of Peru. Materials and methods: Study of cases (n=43) and controls (n=127) not paired was designed, with a case-control ratio of 1:3 based on a secondary source. The case was defined as the patient with CE who presented with pre-surgical complications related or not with the disease and the control without pre-surgical complication. The response variable was preoperative complication and the exposition ones were age, gender, degree of instruction, occupation, number, size (diameter in centimeters) and location of the cyst. To identify the risk factors, a bivariate logistic regression analysis was performed to obtain the crude odds ratios (cOR) and then the variables with significant association were adjusted by a multivariate logistic regression analysis using the Stata® version 14 software, obtaining the adjusted odds ratios (aOR). Results: Fifty eight point eight percent (24/43) of the cases were women and the median age was 35 years and 59.1% (75/127) of the controls correspond to the female gender and the median age was 27 years. The multivariate logistic regression analysis found that being over 56 years old has an aOR 2.91 (95% confidence interval [CI]: 1.007-8.433) and having ≥3 cysts has an aOR 4.26 (95% CI: 1.62-11.22) for present pre-surgical complications in patients with CE. Conclusion: It was identified that being over 56 years old and having ≥3 cysts are risk factors for presenting pre-surgical complications in CE.

RESUMEN Objetivo: Identificar los factores asociados a complicaciones prequirúrgicas en pacientes con equinococosis quística (EC) en áreas endémicas del Perú. Materiales y métodos: Se diseñó un estudio de casos (n=43) y controles (n=127), sin emparejamiento, de fuente secundaria con una relación de caso-control de 1:3. Se definió como «caso» al paciente con EC que presentó complicaciones prequirúrgicas relacionadas o no con la enfermedad y el control sin complicación prequirúrgica. La variable respuesta fue complicación prequirúrgica y las de exposición fueron edad, género, grado de instrucción, ocupación, número de quistes, tamaño (diámetro en centímetros) y localización del quiste. Para identificar los factores de riesgo, primero se calcularon los odds ratio crudos (ORc) mediante regresión logística; luego las variables que mostraron asociación significativa se ajustaron mediante análisis multivariado de regresión logística utilizando Stata® versión 14, y se obtuvieron los odds ratio ajustados (ORa). Resultados: El 55,8% (24/43) de los casos fueron mujeres y la mediana de edad fue 35 años. Entre los controles, el 59,1% (75/127) fueron mujeres y la mediana de edad fue 27 años. En el análisis de regresión logística multivariado, se encontró que tener más de 56 años tiene un ORa de 2,91 (intervalo de confianza [IC] 95%: 1,01-8,43) y tener ≥3 quistes tiene un ORa de 4,26 (IC 95%: 1,62-11,22) para presentar complicaciones prequirúrgicas en pacientes con EQ. Conclusión: Los factores asociados para presentar complicaciones prequirúrgicas en EQ fueron el tener más de 56 años y el tener ≥3 quistes.

Objective: To identify associated factors with failure of antituberculous therapy in a primary health center in Chorrillos, Lima, Peru. Material and methods: Retrospective case control study with a 1:3 case-control ratio. A case was defined as a patient who discontinued the treatment for a period of 30 consecutive days or more, and a control as a patient successfully completing antituberculous therapy. The score for risk of failure measured in the health center (≥22) and demographic variables wereassessed. Odds ratios (OR) and95%confidenceintervals (CI) werecalculatedusing logistic regression. Results: Thirty-four cases and 102 controls were included. In the multivariate analysis, factors associated to a greater likelihood for a failure in antituberculous therapy were to have less than six years of education (OR: 22,2; 95% IC: 1,9-256,1) and to obtain a score greater or equal than 22 points in the test for risk of failure (OR= 21,4; 95% IC: 6,3-72,4). Conclusions: Failure of antituberculous therapy was associated with having less than six years of education and a score greater than or equal to 22 points in the test for risk of failure.

Objetivo: Identificar los factores asociados al abandono del tratamiento antituberculoso en un centro de salud de atención primaria del distrito de Chorrillos, Lima, Perú. Materiales y métodos: Estudio de casos y controles retrospectivo no pareado. Se definió como caso a los pacientes que abandonaron el tratamiento por un periodo de 30 días consecutivos o más y como controles a los pacientes que terminaron el tratamiento antituberculoso. Se evaluó el puntaje de riesgo de abandono que se realiza en el centro de salud (≥22), así como variables demográficas. Se calculó el odds ratio (OR) e intervalos de confianza al 95% (IC95%) usando regresión logística. Resultados: Se incluyó 34 controles y 102 casos. En el análisis multivariado se encontró que quienes cursaron menos de seis años de educación (OR: 22,2; IC95%: 1,9-256,1) así como quienes tenían un puntaje ≥ a 22 puntos en la prueba de riesgo de abandono (OR= 21,4; IC95%: 6,3-72,4) tenían mayor probabilidad de abandonar el tratamiento antituberculoso. Conclusión: El abandono del tratamiento antituberculoso está asociado con tener menos de seis años de educación y un score mayor a 22 puntos en la prueba de abandono de tratamiento antituberculoso.

Surtos de micobactérias de crescimento rápido têm sido relatados ocasionalmente. O estudo relata um surto de abscessos cutâneos por Mycobacterium chelonae após sessões de mesoterapia em Lima, Peru. De dezembro de 2004 a janeiro de 2005, 35 pessoas que haviam passado por sessões de mesoterapia apresentaram esses abscessos cutâneos. Treze (37%) desses casos suspeitos concordaram em realizar exames clínicos. Foram realizadas biópsias de punção de pele de lesões suspeitas e examinadas substâncias injetadas durante a mesoterapia. Os casos suspeitos eram predominantemente mulheres jovens e as lesões incluíram nódulos subcutâneos, abscessos e úlceras. Mycobacterium chelonae foi isolada de quatro pacientes e de um frasco de procaína. Em conclusão, é importante considerar a mesoterapia como fonte potencial de infecções de micobactérias de crescimento rápido.

Outbreaks of rapidly growing mycobacteria have been occasionally described. The article reports an outbreak of cutaneous abscesses due to Mycobacterium chelonae following mesotherapy in Lima, Peru. From December 2004 through January 2005, 35 subjects who had participated in mesotherapy training sessions presented with persistent cutaneous abscesses. Thirteen (37%) of these suspected cases consented to underwent clinical examination. Skin punch-biopsies were collected from suspicious lesions and substances injected during mesotherapy were analyzed. Suspected cases were mainly young women and lesions included subcutaneous nodules, abscesses and ulcers. Mycobacterium chelonae was isolated from four patients and from a procaine vial. In conclusion, it is important to consider mesotherapy as a potential source of rapidly growing mycobacteria infections.

Surtos de micobactérias de crescimento rápido têm sido relatados ocasionalmente. O estudo relata um surto de abscessos cutâneos por Mycobacterium chelonae após sessões de mesoterapia em Lima, Peru. De dezembro de 2004 a janeiro de 2005, 35 pessoas que haviam passado por sessões de mesoterapia apresentaram esses abscessos cutâneos. Treze (37%) desses casos suspeitos concordaram em realizar exames clínicos. Foram realizadas biópsias de punção de pele de lesões suspeitas e examinadas substâncias injetadas durante a mesoterapia. Os casos suspeitos eram predominantemente mulheres jovens e as lesões incluíram nódulos subcutâneos, abscessos e úlceras. Mycobacterium chelonae foi isolada de quatro pacientes e de um frasco de procaína. Em conclusão, é importante considerar a mesoterapia como fonte potencial de infecções de micobactérias de crescimento rápido.

Outbreaks of rapidly growing mycobacteria have been occasionally described. The article reports an outbreak of cutaneous abscesses due to Mycobacterium chelonae following mesotherapy in Lima, Peru. From December 2004 through January 2005, 35 subjects who had participated in mesotherapy training sessions presented with persistent cutaneous abscesses. Thirteen (37%) of these suspected cases consented to underwent clinical examination. Skin punch-biopsies were collected from suspicious lesions and substances injected during mesotherapy were analyzed. Suspected cases were mainly young women and lesions included subcutaneous nodules, abscesses and ulcers. Mycobacterium chelonae was isolated from four patients and from a procaine vial. In conclusion, it is important to consider mesotherapy as a potential source of rapidly growing mycobacteria infections.

Objectives. Knowing the clinical features, diagnose and treatment for patients with the syndrome mean as chacho and what is its perceived prevalence in five districts of Ayacucho (Peruvian Central Andes).Material and methods. Qualiquantitative study, which included two groups of participants, the first (95) were residents or relatives of those who have ever had in your life chacho, the second group (11) formed by traditional healers of every community. Resultados. Chacho (alcanzo, hapiruzqa in quechua), is regarded as a disease of magical origin, characterized by fever, malaise, rejection of some dairy products and pork, in most patients referred the antecedent of a to rest near hill or sleep on the floor (ground ). The duration of the disease was less than a week on average and it was shown that treatment includes the consumption of gasoline, creso (disinfectant), kerosene, as well as the pagapo (Andean ritual of payment to the ground). The consumption of drugs worsens the health condition of patients. Perceived prevalence ranged between 9.1 to 38.0 cases per thousand people habitants, and perceived mortality from 3.8 to 16.8 per ten thousand habitants. Conclusions. Chacho is a present cutlural syndrome, which must be recognized and addressed by health personnel, thus giving them the opportunity to bring the ancestral knowledge of traditional medicine with the current biomedical.

Objetivos. Conocer el cuadro clínico, formas de diagnóstico y tratamiento de los pacientes que presentan el síndrome conocido como chacho y cuál es su prevalencia sentida en cinco distritos de Ayacucho. Materiales y métodos. Estudio cuali-cuantitativo, que incluyó dos grupos de participantes, el primero (95) fueron pobladores o familiares de éstos, que alguna vez en su vida presentaron chacho, el segundo grupo (11) constituido por curanderos de cada comunidad. Resultados. El chacho (alcanzo, hapiruzqa en quechua), se considera como una enfermedad de origen mágico, caracterizada por presentar fiebre, malestar general, rechazo a algunos derivados lácteos y carne de chancho; en la mayoría de los pacientes se menciona el antecedente de descanso cercano a un cerro o dormir en el suelo (tierra). El tiempo de duración de la enfermedad fue menor de una semana en promedio y se evidenció que el tratamiento incluye, el consumo de gasolina, creso, kerosene, así como el pagapo (pago a la tierra). El consumo de medicamentos agrava la condición de salud del paciente. La prevalencia sentida varió entre 9,1 a 38,0 casos por mil habitantes y la mortalidad sentida entre 3,8 a 16,8 por diez mil habitantes. Conclusiones. El chacho es un síndrome cultural vigente, que debe ser reconocido y abordado por el personal de salud, brindándonos así la oportunidad, de armonizar los conocimientos ancestrales de la medicina tradicional con los biomédicos actuales.

OBJECTIVE: To determine the proportion of postpartum women aged 15-49 in Peru who are susceptible to rubella, in order to help address strategies to eliminate rubella and to prevent congenital rubella syndrome (CRS) in the country. METHODS: A cross-sectional survey was conducted during March and April 2003 in six main regional hospitals, in the three geographic regions (coast, mountain, and jungle) of Peru. For the postpartum women who provided written informed consent, a questionnaire was administered and a blood specimen was collected. Sera were tested for rubella immunoglobulin G (IgG) antibody, using a commercial enzyme-linked immunosorbent serologic assay (ELISA) kit. Univariate, bivariate, and multivariate analyses were carried out to assess risk factors for susceptibility. RESULTS: In total, 1 236 postpartum women were enrolled. The overall proportion of IgG-antibody negative women was 12.8% (95% confidence interval (CI): 10.9%-14.6%). Bivariate analysis found the following variables associated with susceptibility: living in the jungle region (odds ratio (OR) = 1.65; 95% CI: 1.13-2.42); age < 19 years (OR = 2.02; 95% CI: 1.35-3.03); being a housewife (OR = 1.69; 95% CI: 1.12-2.55); and having < 11 years of education (OR = 2.12; 95% CI :1.20-3.75). Multivariate analysis found the following variables were associated with susceptibility: living in the jungle region (OR = 1.67; 95% CI: 1.13-2.46); age < 19 years (OR = 1.62; 95% CI: 1.07-2.47); having < 4 children born alive (OR = 1.85; 95% CI: 1.00- 3.40); and having < 11 years of education (OR = 2.07; 95% CI: 1.16-3.71). CONCLUSIONS: The proportion of postpartum women at the study sites who were found to be susceptible to rubella was 12.8%, placing Peru among the countries facing a moderate level of risk for the occurrence of CRS cases. The findings suggest the need to also provide the rubella vaccine to other population groups, especially women of childbearing age.

OBJETIVO: Determinar la proporción de mujeres recién paridas de 15-49 años de edad susceptibles a la rubéola en Perú, a fin de contribuir a establecer estrategias para eliminar la rubéola y evitar el síndrome de rubéola congénita (SRC) en el país. MÉTODOS: Se realizó un estudio transversal en marzo y abril de 2003 en seis hospitales regionales principales de tres regiones geográficas (costa, sierra y selva) de Perú. A las mujeres recién paridas que dieron su consentimiento informado por escrito se les aplicó un cuestionario y se les tomó una muestra de sangre. La detección serológica de anticuerpos de la clase IgG contra rubéola se realizó mediante un ensayo inmunoenzimático comercial tipo ELISA. Se realizaron análisis con una, dos y múltiples variables para evaluar los factores de riesgo de ser susceptible a la enfermedad. RESULTADOS: En total participaron 1 236 mujeres recién paridas. La proporción de mujeres negativas a anticuerpos IgG contra rubéola fue de 12,8% (intervalo de confianza de 95% [IC95%]: 10,9% a 14,6%). Según el análisis bifactorial, las variables asociadas con la vulnerabilidad a la enfermedad fueron: vivir en la región de la selva (razón de posibilidades [odds ratio, OR] = 1,65; IC95%: 1,13 a 2,42); tener menor de 19 años de edad (OR = 2,02; IC95%: 1,35 a 3,03); ser ama de casa (OR = 1,69; IC95%: 1,12 a 2,55); y tener 11 años o menos de educación (OR = 2,12; IC95%: 1,20 a 3,75). Las variables asociadas con la vulnerabilidad a la enfermedad según el análisis multifactorial fueron: vivir en la región de la selva (OR = 1,67; IC95%: 1,13 a 2,46); tener menos de 19 años de edad (OR = 1,62; IC95%: 1,07 a 2,47); tener menos de 4 niños nacidos vivos (OR = 1,85; IC95%: 1,00 a 3,40); y tener 11 años o menos de educación (OR = 2,07; IC95%: 1,16 a 3,71). CONCLUSIONES: En la zona estudiada, la proporción de mujeres recién paridas susceptibles a la rubéola fue de 12,8%, lo que coloca a Perú entre los países con riesgo moderado de tener casos de SRC. Estos resultados indican la necesidad de vacunar también contra la rubéola a otros grupos de la población, especialmente a las mujeres en edad de procrear.

The purpose of this report is to divulge a new case of human anisakidosis in Peru, caused by a larva of the Pseudoterranova decipiens nematode found in a 17 year old female patient from Lima, who had ingested "cebiche" in a restaurant in the city of Ica, in the central coast of Peru. Approximately 4 hours after having ingested the food, the patient reported a feeling of uneasiness, with a nauseous sensation in the epigastric region, which intensified 5 hours later when she vomited. In the vomit content a live nematode was found, which was identified as larva L3 of P. decipiens. This is one of the etiologic agents of anisakidosis.

El objetivo del reporte es comunicar un nuevo caso de anisakidosis humana en el Perú, producido por una larva del nemátode Pseudoterranova decipiens, aislado de una mujer de 17 años natural de Lima, que había ingerido "cebiche" en un establecimiento de la ciudad de Ica, en la Costa central del Perú. Aproximadamente, 4 horas después de la ingesta del potaje, la paciente presenta malestar general, luego, con sensación de náusea a nivel del epigastrio, este síntoma se hizo más intenso 5 horas después y la paciente presentó vómitos, en cuyo contenido se halló un nemátode vivo que fue identificado como larva L3 de P. decipiens. Este es uno de los agentes etiológicos de la anisakidosis.

Objective: To determine HIV and syphilis prevalence and to identify behavioral risk factors in jail prisoners. Materials and methods: Cross-sectional study conducted during 1999 in 22 Peruvian jails. RPR was used to detect syphilis (linked results) and ELISA to screen HIV (non-linked results). Positive results were confirmed with IFI and Western Blot. A structured survey was carried out, resulting data was analized with SPSS 9,0 and AMOS 4. Results: 6 963 PPL participated. HIV and syphilis seroprevalence were 1,1 % and 4,1% respectively.The most significant HIV risks factors were: drug abuse (OR: 2,7), sexually transmitted diseases (OR: 2,3), sexual intercourse between males (OR: 2,2), cocaine use (OR: 2,1), genital ulcer (OR: 2,1), previus incarcelation (OR:2), and having a tattoo (OR: 1,99). The most significant syphilis risks factors were, sexual intercourse between males (OR: 2,8), sexually transmitted diseases (OR: 2,4), genital ulcer (OR: 1,8), sexual intercourse with sex workers (OR: 1,5) and having more than two sexual partners (OR: 1,5). An association between HIV infection and having a tattoo, having more than two sexual partners, more than one previous imprisonment and genital ulcer, was found using a structural equation model. Conclusions: Important rates of HIV and Syphilis prevalence were found among this group, thus making necessary the performace of similar research that may allow the knowledge of new trends (second generation surveillance) and to assess the impact of possible interventions.

Objetivos: Estimar la prevalencia de sífilis y VIH e identificar los comportamientos de riesgo asociados en personas privadas de libertad (PPL). Materiales y métodos: Estudio transversal realizado durante el año 1999 en 22 establecimientos penitenciarios peruanos. Se realizó RPR para la detección de sífilis (datos ligados) y ELISA para tamizaje de VIH (datos no ligados), confirmándose con IFI o Western Blot. Se realizó una encuesta estructurada y se analizaron los datos mediante los programas SPSS 9,0 y AMOS 4. Resultados: Participaron 6963 PPL. La prevalencia de VIH fue 1,1% y de sífilis 4,1%. Los comportamientos de riesgo asociados a VIH más significativos fueron: consumo de drogas (OR:2,7), infecciones de transmisión sexual (OR: 2,3), relaciones sexuales entre hombres (OR: 2,2), uso de cocaína (OR: 2,1), úlcera genital (OR: 2,1), haber sido encarcelado previamente (OR: 2) y tener tatuajes (OR: 1,99). Mientras los asociados a sífilis fueron: tener relaciones sexuales entre hombres OR: (2,8), infecciones de transmisión sexual (OR: 2,4), úlcera genital (OR:1,8), haber tenido relaciones sexuales con trabajadora sexual (OR: 1,5) y tener más de dos parejas sexuales (OR: 1,5). Utilizando un modelo de ecuaciones estructurales se asoció VIH con el reporte de tener tatuaje, más de dos parejas sexuales, más de un encarcelamiento previo y úlcera genital. Conclusiones: Se encontraron importantes valores de prevalencia de VIH y sífilis en este grupo de personas, siendo necesario continuar realizando estudios similares que nos permitan conocer las tendencias (vigilancia de segunda generación) y conocer el impacto de posibles intervenciones.

In this report two probable cases of anisakiosis and results on search of Anisakis larvae in 12 old specimens of Coryphaena hippurus "perico" or "dorado" that were expended at the markets of Ica city from Marcona and San Andrés (Department of Ica) and Ilo (Department of Moquegua) in Central and South peruvian coast during phenomenon "El Niño" 1997-98 are presented. Two probable cases of acute gastric anisakisis by eating "cebiche" of "perico" have been founded; the prevalence of Anisakis physeteris larvae was 7/12 and relative intensity was of 14-63 (X=34.28) larvae. It's thought that anisakiosis emerges during phenomenon El Niño and some measure of controls in order to low the risk of infection by this marine zoonoses are proposed

The purpose of this communication is to present two cases of Chagas' disease in a familial group of a index case, coming from the Arequipa region in southwestern Peru, an endemic area. The case suffered sudden death because of chagasic cardiomyopathy in an area free triatomines in Department Ica. His sister and his nephew showed IgG specific antibodies anti - Trypanosoma cruzi detected by enzime-linked immunosorbent assay (ELISA) and indirect immunofluorescence assay (IFA), both households had lived in an endemic valley (Vitor-Arequipa). Our results underscore the importance of the epidemiological survey in the familial group of the chronic case in low risk-areas.