Características clínicas y genéticas de un paciente con síndrome de Noonan y una mutación de novo en el gen MAP2K1: Reporte de caso

Introducción: El síndrome de Noonan es un trastorno genético relacionado principalmente con la mutación del gen PTPN11. Reporte del caso: Recién nacido varón de 34 semanas de edad gestacional con ultrasonidos obstétricos que muestran higroma quístico, hidronefrosis renal bilateral, y polihidramnios. Al nacimiento, presentó edema nucal, puente nasal ancho, pabellón auricular de implantación baja, y criptorquidia derecha. Además, defecto del tabique auricular, ausencia de vena cava inferior, hipertensión pulmonar, conducto arterioso persistente y dificultad respiratoria. El resultado del análisis del panel de 14 genes mostró una mutación del gen MAP2K1 y una variante de significado incierto en el gen CBL, confirmando el diagnóstico del síndrome de Noonan negativo para PTPN11. Durante el seguimiento, también se le diagnosticó blefaroptosis izquierda y reflujo gastroesofágico. Conclusión: El presente caso destaca la amplia variedad de características fenotípicas en un paciente con síndrome de Noonan, con sospecha al nacimiento y confirmado durante el seguimiento.

Background: Noonan syndrome is a genetic disorder mostly related to PTPN11 gene mutation. Report Case: Newborn male of 34 weeks of gestational age with obstetric ultrasounds showing cystic hygroma, bilateral renal hydronephrosis, and polyhydramnios. At born, he presented nuchal edema, wide nose, low-set ears, and right cryptorchidism. Additionally, he presented atrial septum defect, absence of inferior vena cava, mild pulmonary hypertension, persistent ductus arteriosus, and respiratory distress. The result of the 14-gene panel analysis showed a MAP2K1 gene mutation and a variation of uncertain significance in the CBL gene, confirming the diagnosis of PTPN11- negative Noonan syndrome. During the follow-up, he was additionally diagnosed with blepharoptosis of left eye and gastroesophageal reflux disease. Conclusion:This report highlights the wide variety of phenotypical characteristics in a Noonan syndrome patient, which was suspected upon birth and developed during the follow-up.

Asociación entre conocimiento y prácticas sobre la infección por VIH en mujeres peruanas: análisis secundario de encuesta nacional

Resumen Introducción: Las mujeres en edad reproductiva podrían considerarse como una población vulnerable a contraer la infección por VIH. La relación entre conocimiento y prácticas no está descrita en un contexto donde los conocimientos, actitudes y prácticas sobre el VIH son inadecuados. Objetivo: Determinar la asociación entre conocimientos y prácticas sobre la infección por VIH en mujeres peruanas en edad reproductiva. Material y Métodos: Análisis de Encuesta Demográfica y de Salud Familiar 2019, cuya muestra fue probabilística, estratificada y bietápica. El análisis consideró a mujeres en edad reproductiva sexualmente activas. Se definió "conocimientos adecuados" a los puntajes superiores al tercil superior de las observaciones al responder 18 preguntas y se determinó la asociación con cada una de las cinco prácticas. Se utilizó estadística descriptiva e inferencial -bivariada y multivariada- con regresión de Poisson para análisis poblacionales. Resultados: La media de respuestas correctas fue 12,6 (IC95%: 12,5-12,7). El 19,2% había usado preservativo en su última relación sexual. Un nivel de conocimientos adecuado estuvo asociado al uso de preservativo en la última relación sexual (RPa: 1,20; IC95%: 1,06-1,36), haber tenido una infección de transmisión sexual y con haberse realizado una prueba diagnóstica para infección por VIH. Conclusiones: Considerando una baja prevalencia de uso de preservativo en la última relación sexual de mujeres peruanas en edad reproductiva, los conocimientos generales adecuados sobre la infección por VIH se asocian con haber realizado esta práctica.

Abstract Background: Reproductive-age women are a vulnerable population for HIV infection. The relationship between knowledge and practices is not well described in a context where levels of knowledge, attitudes, and practices about HIV infection are inadequate. Aim: To determine the association between knowledge and practices about HIV infection in Peruvian reproductive-age women. Methods: Analysis of secondary data from the 2019 Demographic and Family Health Survey. It got a probabilistic, stratified, and two-stage sample. We included reproductive-age and actively sexual women. Scores above the upper tertile of the observations were defined as "adequate knowledge" by answering 18 questions. Then, we determined the association between adequate knowledge with each of the five practices. Descriptive and inferential statistics -bivariate and multivariate- were used with the Poisson regression for survey analysis. Results: The mean of correct answers was 12.6 (95% CI: 12.5 - 12.7). 19.2% of Peruvian women had used a condom in the last sexual relationship. An adequate level of knowledge was associated with the use of condoms in the last sexual intercourse (PRa: 1.20; 95% CI:1.06 - 1.36), with having a sexually transmitted infection in the last year, and with having a diagnostic test for HIV infection. Conclusions: Considering a low prevalence of condom use in the last sexual intercourse of Peruvian women of reproductive age, adequate general knowledge about HIV infection has associated with the accomplishment of this practice.

Publication and associated factors of clinical trials registered in Peru.

OBJECTIVE: We aim to determine the percentage of publication and its associated factors of clinical trials (CTs) registered in Peru. METHODS: Using a cross-sectional study design, we assessed CTs registered at the CT's Peruvian Registry (REPEC) during the 2011-2016 period, and evaluated its percentage of publication and associated factors. We used a bibliographic search algorithm to determine if the CTs were published and assessed the associated factors by using a Cox regression to estimate the adjusted hazard ratios (aHR) as the magnitude of association of interest. RESULTS: We analyzed 228 CTs, of which 63% were published. The regression analysis identified the year of registration (aHR 2012 = 1.15 [0.58-2.27]; aHR 2013 = 0.45 [0.21-0.95]; aHR 2014 = 0.89 [0.43-1.82]; aHR 2015-2016 = 0.16 [0.05-0.58]), total number of participants (aHR = 1.12; 1.05-1.18), and phase III-IV (aHR = 2.15; 0.1.16-4.03) as factors associated with the publication of the CTs. CONCLUSIONS: The percentage of publication of CTs executed in Peru is insufficient, and it increases the older the year of its registration in the REPEC, mayor of the number of participating countries, and if it is a phase III or IV study.

Motivos para la elección y preferencias de la especialidad médica en médicos generales del Perú / Reasons for the election and preferences of the medical specialty in general practitioners of Peru

RESUMEN Objetivo : describir los factores que influyen en la elección de la especialidad médica en médicos generales en Perú y calcular la distribución de postulantes y vacantes en el examen de residentado médico en el 2018. Materiales y métodos : estudio descriptivo en médicos generales que asistieron a un evento que tuvo por objetivo informar sobre las especialidades médicas, realizado por el Colegio Médico del Perú. Durante dicho evento, se distribuyó un cuestionario autoaplicado para recolectar las variables de interés. Los análisis estadísticos se realizaron con el programa Stata v14. Resultados : se incluyeron 298 participantes, de los cuales, el 54,4% fueron mujeres, 46,3% tenían menos de 28 años, 59,8% estudió su pregrado en Lima y 52,3% culminaron sus estudios entre 2014-2016. El 49,7%, 46,6%, y 3,7% prefirió elegir una especialidad quirúrgica, clínica, y alguna otra, respectivamente. Entre los factores para elegir a qué especialidad médica postular, aquellos considerados importantes o muy importantes por la mayor parte de los encuestados fueron: la alta probabilidad de conseguir empleo (98,7%), tener retos intelectuales (94,9%), ver casos interesantes (93,2%), y tener buenos ingresos económicos (90,8%). Las especialidades con mayor cantidad de postulantes para cada vacante fueron cirugía plástica y dermatología, mientras que las que tuvieron menos postulantes que vacantes fueron medicina familiar y medicina interna. Conclusiones : los factores económicos y académicos son los más importantes para la elección de una especialidad médica, en el contexto donde las especialidades del primer nivel de atención tienen pocos postulantes. Esto permite entender mejor este proceso, informar adecuadamente a los médicos sobre las especialidades disponibles, e impulsar estrategias para aumentar el interés de los médicos en especialidades necesarias en el país.

ABSTRACT Objective : to describe the reasons that influence the choice of medical specialty in general physicians in Peru, and to calculate the applicants and vacancies in the national medical residency exam in 2018. Materials and methods : descriptive cross-sectional study in general physicians who attended an event that aimed to inform about medical specialties, carried out by the Peruvian Medical College. During this event, a self-applied questionnaire was distributed to collect the variables of interest. The statistical analyzes were performed with the Stata v.14 program. Results : surveys of 298 participants were analyzed, of which 54.4% were women, 46.3% had less than 28 years old, 59.8% studied their undergraduate studies in Lima, and 52.3% completed their career between 2014-2016. 49.7%, 46.6%, and 3.7% preferred choosing a surgical specialty, clinic, and some other, respectively. The reasons considered important or very important to choose a specialty were: the high probability of getting a job (98.7%), having intellectual challenges (94.9%), see interesting cases (93.2%), and have good economic income (90.8%). Plastic surgery and dermatology were the specialties with greatest number of applicants for each vacant, while family medicine and internal medicine had less applicants than vacancies. Conclusions : Peruvian physicians consider economic and academic reasons as the most important ones, when choosing a specialty, in a context where primary care specialties had few applicants. This allows us to better understand the process behind choosing and specialty, adequately inform to the physicians about the specialties available, and promote strategies to increase the interest of doctors in specialties needed in the country.

The scientific production of medical students in Lima, Peru.

BACKGROUND: Research is an important undergraduate competence for physicians. However, few studies have assessed the scientific production of medical students in Latin-America. Thus, this study had the objective to assess the rate and characteristics of research publications by undergraduate medical students in 2016, in Lima, Peru. METHODS: This cross-sectional study included all the students of the eight medical schools in Lima (Peru). The medical students included were collected from the registry of the National Medical Examination (taken during their last year of undergraduate studies) in 2016. To evaluate their research publications, systematic searches were performed in Google Scholar and PubMed during August 2018. RESULTS: We studied data from 1241 medical students (54.2% females) from eight medical schools. 173 (13.9%) students published at least one paper, 102 (8.2%) published at least one original paper, and 30 (2.4%) published at least one original paper in PubMed-Indexed journals. We registered a total of 174 papers authored by medical students, of which 98 (56.3%) were published in Peruvian journals, 128 (73.6%) were published in Spanish, 90 (51.7%) had a medical student as the first author, and 43 (24.7%) had a medical student as the corresponding author. The percentage of students with at least one publication was very heterogeneous across the eight medical schools evaluated (63.6%, 21.4%, 16.8%, 15.1%, 8.2%, 2.0%, 1.9%, and 0.0%). CONCLUSION: Among medical students in Lima, one out of seven had published at least one paper, one out of 12 had published at least one original paper, and one out of 40 had published at least one original paper in PubMed-Indexed journals. Scientific production was very heterogeneous across medical schools.

[Association between knowledge and practices on HIV infection in Peruvian women: secondary analysis of national survey]. / Asociación entre conocimiento y prácticas sobre la infección por VIH en mujeres peruanas: análisis secundario de encuesta nacional.

BACKGROUND: Reproductive-age women are a vulnerable population for HIV infection. The relationship between knowledge and practices is not well described in a context where levels of knowledge, attitudes, and practices about HIV infection are inadequate. AIM: To determine the association between knowledge and practices about HIV infection in Peruvian reproductive-age women. METHODS: Analysis of secondary data from the 2019 Demographic and Family Health Survey. It got a probabilistic, stratified, and two-stage sample. We included reproductive-age and actively sexual women. Scores above the upper tertile of the observations were defined as "adequate knowledge" by answering 18 questions. Then, we determined the association between adequate knowledge with each of the five practices. Descriptive and inferential statistics -bivariate and multivariate- were used with the Poisson regression for survey analysis. RESULTS: The mean of correct answers was 12.6 (95% CI: 12.5 - 12.7). 19.2% of Peruvian women had used a condom in the last sexual relationship. An adequate level of knowledge was associated with the use of condoms in the last sexual intercourse (PRa: 1.20; 95% CI:1.06 - 1.36), with having a sexually transmitted infection in the last year, and with having a diagnostic test for HIV infection. CONCLUSIONS: Considering a low prevalence of condom use in the last sexual intercourse of Peruvian women of reproductive age, adequate general knowledge about HIV infection has associated with the accomplishment of this practice.

Machismo entre los estudiantes de medicina peruanos: Factores socio-educativos relacionados en 12 universidades peruanas / Male Chauvinism Among Peruvian Medical Students: Related Socio-Educational Factors in 12 Peruvian Universities

RESUMEN Introducción: El machismo está arraigado en ciertas poblaciones, pero no se ha medido esto entre los que se encargarán de la atención de la salud. Objetivo: Determinar los factores asociados con el machismo entre los estudiantes de Medicina de 12 universidades peruanas. Métodos: Estudio transversal analítico de tipo multicéntrico, con datos recogidos previamente, en el que se usaron tests validados para la medición del machismo y la religiosidad; además, se indagaron otras características sociales y educativas y se cruzaron los datos. Se obtuvieron estadísticos descriptivos y analíticos. Resultados: En el análisis multivariable, se encontró asociación entre ser machista y no creyente (RP = 1,88; IC95%, 1,47-2,40), así como ser mujer (RP = 0,35; IC95%, 0,27-0,46). De las 12 universidades evaluadas, la universidad menos machista fue una particular en Lima. Utilizando esta universidad como categoría de comparación, las universidades estadísticamente más machistas fueron una privada de Chiclayo (a=3,63; p < 0,001), seguida de una particular en Huancayo (a=3,20; p = 0,001), la nacional de Huancayo (a = 2,79; p < 0,001) y la pública de Ica (a = 2,32; p = 0,006); los cruces se ajustaron por la edad. Conclusiones: Se encontró que el machismo es mayor entre los no creyentes, los varones y en algunas universidades, con predominio de universidades de la sierra central del Perú o con migrantes de la serranía. Esto es importante, ya que brinda un panorama acerca de este rasgo de los que serán los futuros encargados de velar por la salud de los peruanos.

ABSTRACT Introduction: Male chauvinism is rooted in certain populations, but it has not been measured among those who will be responsible for healthcare. Objective: To determine the factors associated with male chauvinism among the medical students of 12 Peruvian universities. Methods: Cross-sectional multicentre analytical study, with previously collected data, which used validated tests to measure male chauvinism and strong religious beliefs. In addition, other social and educational factors were analysed and the data was crossed. Descriptive and analytical statistics were obtained. Results: In the multivariate analysis, we found an association between male chauvinism and religious non-believers (RP=1.88; 95% CI, 1.47-2.40), as well as being female (RP=0.35; 95% CI, 0.27-0.46). Of the 12 universities evaluated, the least chauvinistic university was in Lima. Using this university as a comparison category, the statistically more chauvinistic universities were a private university in Chiclayo (a=3.63; p<0.001), followed by a university in Huancayo (a=3.20; p=0.001), Huancayo national university (a=2.79; p<0.001) and the public university of Ica (a=2.32; p=0.006); the crossed data were adjusted for age. Conclusions: It was found that male chauvinism is greater among non-religious believers, men and in some universities, with a predominance of universities in the central highlands of Peru or that had migrants from the mountains. This is important, since it gives us an overview about this trait in those who will be responsible for the future healthcare of Peruvians.

Male Chauvinism Among Peruvian Medical Students: Related Socio-Educational Factors in 12 Peruvian Universities. / Machismo entre los estudiantes de medicina peruanos: Factores socio-educativos relacionados en 12 universidades peruanas.

INTRODUCTION: Male chauvinism is rooted in certain populations, but it has not been measured among those who will be responsible for healthcare. OBJECTIVE: To determine the factors associated with male chauvinism among the medical students of 12 Peruvian universities. METHODS: Cross-sectional multicentre analytical study, with previously collected data, which used validated tests to measure male chauvinism and strong religious beliefs. In addition, other social and educational factors were analysed and the data was crossed. Descriptive and analytical statistics were obtained. RESULTS: In the multivariate analysis, we found an association between male chauvinism and religious non-believers (RP=1.88; 95% CI, 1.47-2.40), as well as being female (RP=0.35; 95% CI, 0.27-0.46). Of the 12 universities evaluated, the least chauvinistic university was in Lima. Using this university as a comparison category, the statistically more chauvinistic universities were a private university in Chiclayo (α=3.63; p<0.001), followed by a university in Huancayo (α=3.20; p=0.001), Huancayo national university (α=2.79; p<0.001) and the public university of Ica (α=2.32; p=0.006); the crossed data were adjusted for age. CONCLUSIONS: It was found that male chauvinism is greater among non-religious believers, men and in some universities, with a predominance of universities in the central highlands of Peru or that had migrants from the mountains. This is important, since it gives us an overview about this trait in those who will be responsible for the future healthcare of Peruvians.

Association of waiting and consultation time with patient satisfaction: secondary-data analysis of a national survey in Peruvian ambulatory care facilities.

BACKGROUND: Research suggested that waiting time and consultation time are associated with overall patient satisfaction concerning health services. However, there is a lack of information regarding this subject in Latin American countries, where particular aspects of health systems and population characteristics could modify this association. Our aim was to evaluate the association of waiting time and consultation time with patient satisfaction, in Peruvian ambulatory care facilities and propose a cut-off points of waiting and consultation time based on patient satisfaction. METHODS: Cross-sectional secondary data analysis of the National Survey on User Satisfaction of Health Services (ENSUSALUD-2015), a national-wide survey with a probabilistic sample of 181 Peruvian ambulatory care facilities. Patient satisfaction, waiting time, consultation time, and sociodemographic variables were collected from the ENSUSALUD-2015. All variables were collected by survey directly to patients, from the selected ambulatory care facilities, after their consultation. Complex survey sampling was considered for data analysis. In the association analysis, we grouped the waiting time and consultation time variables, every 10 min, because for it is more relevant and helpful in the statistical and practical interpretation of the results, instead of the every-minute unit. RESULTS: The survey was performed in 13,360 participants. Response rate were 99.8 to 100% in the main variables. Waiting time (for every 10 min) was inversely associated with patient satisfaction (aOR: 0.98, 95% CI: 0.97-0.99), although the aOR was lower among those who reported a waiting time ≤ 90 min (aOR: 0.92, 95% CI: 0.89-0.96). Consultation time (for every 10 min) was directly associated with patient satisfaction (aOR: 1.59, 95% CI: 1.26-2.01), although the aOR was higher among those who reported a consultation time ≤ 15 min (aOR: 2.31, 95% CI: 1.66-3.21). CONCLUSION: In Peruvian ambulatory care facilities, both waiting time and consultation time showed an association with overall patient satisfaction, which was stronger in the first 90 min of waiting time and in the first 15 min of consultation time. This should be taken into consideration when designing interventions to improve waiting times and consultation times in ambulatory care facilities from Peru or from similar contexts.

Twenty-two years' experience registering trials in a low-middle income country: The Peruvian Clinical Trial Registry.

AIM: This study analyzes the quantitative and qualitative evolution of the Peruvian Clinical Trial Registry during the last 22 years. METHODS: Following a cross-sectional design, we reviewed all clinical trials registered at the Peruvian Clinical Trial Registry during 1995-2017. We downloaded and extracted all registries on 31 March 2018. We summarized qualitative variables and quantitative variables. Also, we performed trends analysis of the records by year, clinical phase, institutional review board, and children's participation. RESULTS: The Peruvian Clinical Trial Registry recorded 1748 clinical trials during 1995-2017. Considering World Health Organization 20-standard descriptors as the standard, the registry suitably recorded four of them in 1995 and 19 since 2013. There was a meaningful change in the trend of the registries, showing a significant upward registry trend until 2008 and a significant downward registry trend since then. This trend could be influenced by new regulation in clinical trials registry. Several trials had incomplete entries for different studied variables. Most of the clinical trials (82%) included male and female participants, and only 14% included children. Oncological disorders were the diseases most frequently investigated (20%). Most of clinical trials were registered by pharmaceutical companies. A few institutional review boards evaluated most of the clinical trials. CONCLUSION: The registration of clinical trials in Peru has improved quantitatively and qualitatively since it started, but its quantitative grow stopped in 2008. Since then, the number of registries has declined steadily. There is an influence of pharmaceutical companies in clinical trial registration.

Carrera previa como factor asociado al uso de buscadores científicos entre estudiantes de medicina latinoamericanos: cuando la experiencia no cuenta / A previous degree as a factor associated with the use of search engines by Latin American medical students: When experience does not count

INTRODUCCIÓN: El hecho de tener una carrera previa debería brindar una ventaja en el conocimiento global de la carrera de medicina, pero esto no ha sido evaluado desde el punto de vista científico. OBJETIVO: Determinar la asociación de la carrera previa y el uso de buscadores científicos entre estudiantes de medicina humana de Latinoamérica. METODOLOGÍA: Estudio analítico transversal basado en un análisis de datos secundarios de un estudio realizado en 40 facultades de medicina en América Latina. La variable principal fue el haber realizado una carrera previa, esto se cruzó con el conocimiento de cinco bases de datos y un buscador. Se obtuvo estadísticos de asociación. RESULTADOS: De los 11.574 estudiantes, el 7,6% (885) manifestaron contar con una carrera previa, la cual pertenecía en un 79,6% (606) al área de ciencias. Los recursos científicos informáticos de mayor conocimiento fueron el Scholar Google (69,1 y 73,6% por los que no y sí tenían carrera previa, respectivamente), PubMed (59,9% versus 64,5%) y SciELO (55,6% versus 66,1%). En el análisis multivariado, los que tenían una carrera previa tuvieron menor frecuencia de uso de las bases PubMed (RP: 0,86; IC 95%: 0,79-0,95), Scopus (RP: 0,78; IC 95%: 0,61-0,99), Uptodate (RP: 0,72; IC 95%: 0,54-0,97) y SciELO (RP: 0,77; IC 95%: 0,69-0,87), ajustado por tres variables. DISCUSIÓN: Existe una baja frecuencia de uso de recursos informáticos entre los que tenían una carrera previa. Esto podría ser un indicador de que otras carreras también tienen un bajo nivel de enseñanza en temas de investigación. Esto debe corroborarse y mejorarse

INTRODUCTION: Having a previous degree should be an advantage in the overall knowledge of the medical degree, but this has not been evaluated from the scientific point of view. OBJECTIVE: To determine whether there is an association with a previous degree and the use of search engines in medical students of Latin America. METHODOLOGY: Cross-sectional analytical study was conducted, based on an analysis of secondary data from a study carried out in 40 medical schools in Latin America. The main variable was the previous degree, which was crossed with the knowledge of five databases and a search engine. Association statistics were performed. RESULTS: Of the 11,574 students included, 7.6% (885) has a previous degree, of which 79.6% (606) were in the area of sciences. The best known scientific search resources were Google Scholar (69.1% and 73.6%, for those without and with a previous degree, respectively), followed by PubMed (59.9% versus 64.5%), SciELO (55.9% versus 66.1%). In the multivariate analysis, those who had a previous career made less frequent use of PubMed (RP: 0.86; 95% CI: 0.79-0.95), Scopus (RP: 0.78; 95% CI: 0.61-0.99), Uptodate (RP: 0.72; 95% CI: 0.54-0.97), and SciELO (RP: 0.77; 95% CI: 0.69-0.87), adjusted by three variables. DISCUSSION: There is a lower frequency of use of information resources among those who have a previous degree. This could indicate that other degree courses also have a lower level of teaching in research subjects. These results need to corroborated and improved

Latent tuberculosis infection is associated with increased unstimulated levels of interferon-gamma in Lima, Peru.

BACKGROUND: We previously reported increased unstimulated blood levels of interferon-gamma in persons with latent tuberculosis infection (LTBI) in the United States, suggesting enhanced immune activation in LTBI. To investigate this further in a TB-endemic setting, we assessed interferon-gamma levels in persons with and without LTBI in Peru. METHODS: We analyzed data from patients with and without a recent type 1 (spontaneous) acute myocardial infarction (AMI) who were enrolled from two public hospital networks in Lima, Peru, and underwent LTBI testing using the QuantiFERON® TB Gold In-tube (QFT) assay. Participants with a positive QFT test were defined as having LTBI, whereas participants with a negative QFT test were defined as non-LTBI. Unstimulated interferon-gamma was quantified via enzyme-linked immunosorbent assay in the QFT nil-tube, which does not contain antigens. We compared unstimulated interferon-gamma levels between LTBI and non-LTBI groups using the Wilcoxon rank sum test. We used proportional odds modeling for multivariable analysis. RESULTS: Data from 214 participants were included in this analysis. Of those, 120 (56%) had LTBI. There were no significant differences in age, sex and comorbidities between LTBI and non-LTBI participants, except for recent AMI that was more frequent in LTBI. LTBI participants had higher unstimulated interferon-gamma levels compared to non-LTBI participants (median, interquartile range; 14 pg/mL, 6.5-52.8 vs. 6.5 pg/mL, 4.5-15; P<0.01). LTBI remained associated with higher unstimulated interferon-gamma levels after controlling for age, sex, recent AMI, history of hypertension, diabetes mellitus, dyslipidemia, end stage renal disease, malignancy, obesity, and tobacco use (adjusted odds ratio, 2.93; 95% confidence interval, 1.8-4.9). In a sensitivity analysis that excluded participants with AMI, the association between unstimulated interferon-gamma and LTBI remained present (adjusted odds ratio; 3.93; 95% confidence interval, 1.9-8.2). CONCLUSIONS: LTBI was associated with higher unstimulated interferon-gamma levels. These data suggest ongoing immune activation in LTBI.

Influencia de los hábitos en la depresión del estudiante de medicina peruano: estudio en siete departamentos / Influence of Habits on Depression in the Peruvian Medical Student: Study in Seven Administrative Regions

RESUMEN Objetivo: Determinar la influencia de los hábitos en la depresión del estudiante de medicina de 7 departamentos de Perú. Métodos: Estudio transversal analítico de un análisis secundario de datos. El diagnóstico de depresión se obtuvo según el resultado del test de Zung, considerado positivo ante cualquier grado de esta condición. Además, se comparó esto con otras variables socioeducativas importantes según publicaciones previas. Resultados: De los 1.922 encuestados, el 54,5% (n = 1.047) eran mujeres; la mediana de edad era de 20 [intervalo intercuartílico, 18-22] arios. El 13,5% (n = 259) tenía algún grado de depresión según la escala de Zung. En el análisis multivariable, incrementaron la frecuencia de depresión la mayor cantidad de horas de estudio por día (razón de prevalencias ajustada [RPa] = 1,03; intervalo de confianza del 95% [IC95%], 1,01-1,04; p < 0,001) y que el estudiante trabaje (RPa = 1,98; IC95%, 1,21-3,23; p = 0,006); en cambio, disminuyeron la frecuencia de depresión tener horarios similares para comer (RPa = 0,59; IC95%, 0,38-0,93; p = 0,022) y un lugar fijo donde conseguir sus alimentos (RPa = 0,66; IC95%, 0,46-0,96; p = 0,030), ajustado por el año de ingreso a la universidad. Conclusiones: Se encontró que algunos factores estresantes predisponen a la depresión (trabajar y estudiar más horas por día); en cambio, tener un orden en su rutina diaria disminuye esta condición (tener un lugar y horarios fijos para comer.

ABSTRACT Objective: To determine the influence of habits on depression in medical students from 7 Peruvian Regions. Methods: Analytical cross-sectional study of a secondary data analysis. The diagnosis of depression was obtained according to the Zung test result, with any level of this condition being considered positive. This was also compared with other social and educational variables that were important according to previous literature. Results: Of the 1922 respondents, 54.5% (1047) were female. The median age was 20 [interquartile range, 18-22] years, and 13.5% (259) had some degree of depression according to the Zung scale. In the multivariate analysis, the frequency of depression increased with the hours of study per day (RPA= 1.03; 95%CI; 1.01-1.04; P<.001) and the student work (RPA = 1.98; 95%CI; 1.21-3.23; P=.006). On the other hand, decreased the frequency of depression decreased on having similar meal schedules (RPA = 0.59; 95%CI; 0.38-0.93; P=.022), and having a fixed place in which to get food (RPA = 0.66; 95%CI; 0.46-0.96; P=.030), adjusted for the year of college entrance. Conclusions: Some stressors predisposed to depression were found (the work and studying more hours a day). On the other hand, to have order in their daily routine decreased this condition (having a set place and times for meals).

Influence of Habits on Depression in the Peruvian Medical Student: Study in Seven Administrative Regions. / Influencia de los hábitos en la depresión del estudiante de medicina peruano: estudio en siete departamentos.

OBJECTIVE: To determine the influence of habits on depression in medical students from 7 Peruvian Regions. METHODS: Analytical cross-sectional study of a secondary data analysis. The diagnosis of depression was obtained according to the Zung test result, with any level of this condition being considered positive. This was also compared with other social and educational variables that were important according to previous literature. RESULTS: Of the 1922 respondents, 54.5% (1047) were female. The median age was 20 [interquartile range, 18-22] years, and 13.5% (259) had some degree of depression according to the Zung scale. In the multivariate analysis, the frequency of depression increased with the hours of study per day (RPA=1.03; 95%CI; 1.01-1.04; P<.001) and the student work (RPA=1.98; 95%CI; 1.21-3.23; P=.006). On the other hand, decreased the frequency of depression decreased on having similar meal schedules (RPA=0.59; 95%CI; 0.38-0.93; P=.022), and having a fixed place in which to get food (RPA=0.66; 95%CI; 0.46-0.96; P=.030), adjusted for the year of college entrance. CONCLUSIONS: Some stressors predisposed to depression were found (the work and studying more hours a day). On the other hand, to have order in their daily routine decreased this condition (having a set place and times for meals).

Resistencia bacteriana y factores asociados en pacientes con pie diabético infectado sin desenlace de amputación mayor en un hospital nacional peruano / Bacterial resistance and associated factors in patients with infected diabetic foot with no major amputation outcomes in a Peruvian national hospital

RESUMEN Objetivo: Determinar la resistencia bacteriana y factores asociados en pacientes con pie diabético infectado sin desenlace de amputación mayor. Materiales y métodos: Estudio transversal, analítico, de revisión de historias clínicas de pacientes con pie diabético infectado del 2010-2014 en el Hospital Nacional Edgardo Rebagliati Martins. Según protocolo, las muestras de cultivo consistieron en tejidos que se obtuvieron después de desbridar la zona afectada. Sólo se usaron medios aerobios. Resultados: Se incluyeron 88 pacientes, aislándose 128 bacterias. El 81,8% fue varón con edad promedio de 60,6 años. El 76% tenía tiempo de diabetes >10 años y el 18,7% presentó Hba1c <7,0%. Según clasificación Wagner, 39,8% fue grado 3 y 40,9% grado 4. La infección grado moderada, según IDSA, fue la más frecuente (80,7%), al igual que la isquemia moderada (65,9%) y 44% tuvo infección previa por pie diabético. El 42% de los cultivos fue polimicrobiano, las bacterias aisladas más frecuentes fueron Escherichia coli (23,4%); Enterococcus faecalis (14,1%) y Staphylococcus aureus (13,3%). El 33% de las Enterobacterias fueron productores de betalactamasa de Espectro Extendido (BLEE). Se halló asociación de BLEE con infección previa por pie diabético, mayor PCR y fascitis necrotizante por LRINEC. El 71% de los S. aureus fue meticilino resistente (SAMR), hallándose asociación sólo con PCR alto. Conclusiones: En pacientes con pie diabético sin desenlace de amputación mayor, se encontró una elevada frecuencia de Enterobacterias BLEE positivas y SAMR. Infección previa, PCR alto y LRINEC >8 estuvo asociado a la presencia de BLEE y sólo PCR alto a SAMR

Objective: To determine bacterial resistance and its associated factors in patients with infected diabetic foot with no major amputation outcomes. Materials and methods: This is a cross-sectional analytical study, which consisted in reviewing clinical records from patients with infected diabetic foot seen during the period 2010-2014 in the Edgardo Rebagliati- Martins Hospital. According to the protocol, samples for culture consisted in tissues that were obtained after debriding the affected areas. Only aerobic media for cultures were used. Results: Eighty-eight patients were included, and 128 bacterial isolates were obtained. Most of the subjects (81.8%) were male, and their average age was 60.6 years. Three-fourths of all patients (76%) had diabetes for more than 10 years, and 18.7% had Hba1c <7.0%. According to the Wagner classification, 39.8% were grade 3 and 40.9% were grade 4. Moderated grade infections, according to the IDSA, were the most frequent instances (80.7%), as well as moderate ischemia (65.9%) , and 44% of patients had a previous infection on their diabetic foot. Only 42% of all cultures were polymicrobial, and most frequently isolated microorganisms were Escherichia coli (23.4%), Enterococcus faecalis (14.1%), and Staphylococcus aureus (13.3%). One-third (33%) of Enterobacteriaceae were Extended-Spectrum Beta-lactamase (ESBL) producers. There was an association of having ESBL microorganisms with previous diabetic foot infections, higher CRP values and necrotizing fasciitis according to LRINEC. Most S. aureus strains (71%) were methicillin-resistant (MRSA), and this was associated with high CRP values. Conclusions: In patients with diabetic foot with no major amputation outcomes, there was a high frequency of ESBL Enterobacteriaceae and MRSA. The occurrence of a previous infection, high CRP values and LRINEC >8 were associated with the presence of ESBL, and only high CRP values were associated with MRSA

[Functional dyspepsia in students of eigth peruvians medical schools. Influence of the habits]. / Dispepsia funcional en estudiantes de ocho facultades de medicina peruanas. Influencia de los hábitos.

Functional dyspepsia impacts on quality of life. Due to its multifactorial etiology its characterization proves difficult, especially in populations at risk such as medical students. Objetives: To determine if behavioral and harmful habits of medical students from eight universities of Peru were associated to functional dyspepsia. Methods: Multicentric, cross-sectional study. A self-administered questionnaire was taken among students enrolled in eight medical faculties in Peru. Functional dyspepsia was measured using a validated test; diet characteristics, alcohol, tobacco, coffee or energy drinks consumption were considered behavioral habits. Furthermore, others from the social and educational sphere were measured. Bivariate and multivariate statistical analyses were made. Results: From a total of 1.923 students, the median of the ages was 20, 55% were women and 24% suffered from functional dyspepsia. Factors which diminished the frequency of functional dyspepsia were masculine gender (aPR:0,75; 95%CI:0.64-0.87; p < 0,001), hours spent studying (aPR:0,97; 95%CI:0,96-0,99; p < 0,001) and eating following a fixed schedule (aPR:0,80; 95%CI:0,67- 0,95; p = 0,013); however, having failed a course increases the frequency of functional dyspepsia (aPR:1.24; 95%CI:1.13-1.37; p < 0,001)adjusted for age, as well as difficulties to fall asleep and depression. Conclusion: Many medical students suffered from functional dyspepsia, this being related to several behavioral variables; therefore further studies as well as educational institutions' intervention is required, due to the short and long term problems that may arise from this situation.