Revista de la Sociedad Boliviana de Pediatría

Rational use of antibiotics

Reducing hospitalization with the use of a dengue management algorithm in Colombia

Objetivo. Evaluar el efecto de un algoritmo de manejo del dengue sobre la tasa de hospitalización de pacientes con sospecha de esta enfermedad, en una institución de salud de primer nivel en un área endémica en Colombia. Métodos. Se realizó un estudio cuasi experimental en el hospital local de Piedecuesta, Santander, Colombia, basado en la comparación de dos períodos (de 18 semanas cada uno), antes y después de la implementación del algoritmo. Este incluía recomendaciones para diagnosticar clínicamente el dengue y programar consultas de control y hemogramas, así como criterios de hospitalización y de suspensión del seguimiento. Se compararon las tasas de hospitalización en los dos períodos empleando el análisis de Poisson. La población analizada consistió en los pacientes que consultaron por síndrome febril agudo. Para el ajuste se incluyó el número de casos con dengue (IgM positivos) identificados en el mismo municipio. Resultados. Se obtuvo información de 964 pacientes en el primer período y de 1 350 en el segundo, y en dichos períodos hubo 44 y 13 hospitalizaciones, respectivamente. La implementación del algoritmo se asoció a una reducción significativa de la tasa de hospitalización (razón de tasas: 0,21; intervalo de confianza de 95% 0,11 a 0,39). Esta asociación no se modificó cuando se ajustó por el número de casos de dengue identificados en la ciudad. No hubo diferencias significativas en la tasa de consultas de control (P = 0,85) y de hemogramas (P = 0,24) en los dos períodos. No hubo casos fatales. Conclusiones. Los resultados sugieren que es posible optimizar los recursos asistenciales en el manejo del dengue mediante la implementación del algoritmo.

Objective. Assess the impact of a dengue management algorithm on the hospitalization rate of patients with suspected disease in a primary care health facility in an endemic area of Colombia. Methods. A quasi-experimental study was conducted at the local hospital in Piedecuesta, Santander, Colombia, based on comparison of two periods (18 weeks each), before and after use of the algorithm. This included recommendations for clinical diagnosis of dengue and the planning of follow-up visits and hemograms, as well as criteria for hospitalization and the discontinuation of follow-up. Hospitalization rates in the two periods were compared using the Poisson analysis. The population analyzed consisted of patients seen in the facility for acute febrile syndrome. For adjustment purposes, the number of dengue cases (IgM positive) identified in the municipality was included. Results. Information was obtained on 964 patients in the first period and 1350 patients in the second. There were 44 and 13 hospitalizations during the respective periods. Use of the algorithm was associated with a significant reduction in the hospitalization rate (ratio: 0.21; 95% confidence interval; 0.11-0.39). This association did not change when adjusted for the number of dengue cases identified in the city. There were no significant differences in the rate of follow-up visits (P = 0.85) and hemograms (P = 0.24) in the two periods. There were no case fatalities. Conclusions. The results suggest that health care resources for dengue management can be optimized with the use of the algorithm.

Dissociative disorders: a case report

Se presenta el caso clínico de una adolecente con trastorno de identidad disociativo a consecuencia de haber sufrido abuso sexual intrafamiliar y se aprovecha el caso para hacer una revisión del tema.

We present the clinical case of a teenager suffering from dissociative identity disorder as a result of having been the victim of intrafamily sexual abuse. We take the opportunity to revise the subject.

Jejunal atresia with duodenal membrane

Presentamos el caso clínico de una niña que fue atendida en la Caja Petrolera de Santa Cruz de la Sierra, por una atresia yeyunal con membrana duodenal de presentación tardía. Aprovechamos el caso para hacer una revisión del tema.

We describe the clinical case of a female seen at Caja Petrolera of Santa Cruz de la Sierra, because a jejunal atresia with duodenal membrane. We used this case to revise the subject.

Chronic constipation, a case report

Presentamos dos casos clínicos de pacientes atendidos en el hospital del Niño Dr. Ovidio Aliaga Uría, que corresponden a una constipación crónica de causa orgánica debidas a una hipoganglionosis y enfermedad de Hirschsprung. Aprovechamos el tema para hacer una revisión del mismo.

We present two clinical cases of patients seen at ChildrensHospital Ovidio Aliaga Uria, suffering from organic chronic constipation due to a hypoganglionosis and Hirschsprungs disease. We decided to revise the subject.

Acute severe pancreatitis in children: evidence based strategies for diagnosis and treatment

Congenital multisystem Langerhans cells histiocytosis

Diversidade e prevalência das mutações de resistência genotípica aos antirretrovirais entre crianças infectadas pelo HIV-1

Objective: To evaluate genotyping and subtyping in antiretroviral (ARV) naïve and experienced children, as well as drug resistance profiles through genotyping in these children. Methods: This retrospective study assessed ARV-naïve HIV children and HIV children failing highly active antiretroviral treatment (HAART) followed up at Santa Casa de São Paulo. Genotypingwas performed using purified polymerase chain reaction (PCR) products from retrotranscribed RNA using Kit Viroseq HIV-1 Genotyping System 2.0 or nested PCR in-house. Sequencing was performed using automatic equipment (ABI 3100). ARV resistance mutations were analyzed in the Stanford HIV Drug Resistance Database and subtypingwas performed at the National Center for Biotechnology Information (NCBI), using SimPlot analysis, together with phylogenetic analysis. Results: No primary ARV resistance mutation was detected in the 24 ARV-naïve children, although there were mutations that may contribute to resistance to nucleoside analogue reverse transcriptase inhibitors (NRTI) (12.5%) and to protease inhibitors (PI) (95.8%). For the 23 children failing HAART, we found ARV resistance mutations to NRTI in 95.6% and to non-nucleoside analogue reverse transcriptase inhibitors (NNRTI) in 60.8%. For PI, we found ARV resistance mutations in 95.7%, 47.8% of which had only polymorfisms. In the subtyping analyses, 78.3% of the sequences clustered in HIV-1 subtype B, 4.3% in C, 13% in F and 4.4% in recombinant forms. Conclusion: Our results show low rates of primary resistance in ARV-naïve children and high rates of resistance in children failing ARV treatment, which is compatible with ARV use in these patients.

Objetivo: Avaliar a genotipagem e subtipagem em crianças experimentadas e virgens de tratamento, assimcomoperfis de resistência a medicamentos através da genotipagem nessas crianças. Métodos: Estudo retrospectivo de crianças HIV positivas virgens de tratamento e HIV positivas que não responderam ao tratamento pela terapia antirretroviral altamente ativa (HAART), acompanhadas na Santa Casa de São Paulo (SP). A genotipagem foi realizada com produtos purificados de reação em cadeia da polimerase (PCR) de RNA retrotranscrito, utilizando-se o kit comercial Viroseq HIV-1 Genotyping System 2.0 ou a técnica de nested PCR in-house. O sequenciamento foi realizado com equipamento automático (ABI 3100). As mutações de resistência antirretroviral (ARV) foram analisadas no Stanford HIV Drug Resistance Database e a subtipagem realizada no U.S. National Center for Biotechnology Information (NCBI), utilizando-se o programa de análises SimPlot, juntamente com a análise filogenética. Resultados: Não foi detectada nenhuma mutação de resistência primária ARV nas 24 crianças virgens de tratamento, embora tenham ocorrido mutações que podem contribuir para a resistência aos inibidores da transcriptase reversa análogos de nucleosídeos (ITRN) (12,5%) e aos inibidores da protease (IP) (95,8%). Para as 23 crianças que não responderam à HAART, foram encontradas mutações de resistência ARV aos ITR Nem 95,6% e aos inibidores da transcriptase reversa não-análogos de nucleosídeos (ITRNN) em 60,8%. Para os IP, foram observadas mutações de resistência ARV em 95,7%, 47,8% das quais apresentavam apenas polimorfismos. Nas análises de subtipagem,78,3%das sequências agruparam-se no subtipo B do HIV-1, 4,3% no C, 13% no F e 4,4% em formas recombinantes. Conclusões: Nossos resultados mostrambaixas taxas de resistência primária em crianças virgens de tratamento e altas taxas de resistência emcrianças que não responderamao tratamento ARV, o que é compatível com o uso ARV nesses pacientes.

The relation ship between normal weight and overweight - obesity asthmatic

Introducción: el aumento de la prevalencia del asma y la obesidad ha llevado a diferentes investigadores a postular que existe una asociación significativa entre ambas entidades. Objetivos: describir y analizar factores asociados al sobrepeso-obesidad en niños y adolescentes asmáticos. Métodos: estudio transversal, con diagnóstico de asma según Global Initiative for Asthma (GINA). Se calculó el IMC y percentiles para edad y sexo (CDC, 2000), definiendo grupos de sobrepeso y obesidad. Resultados: de 559 pacientes, 226 (40,4%) sexo femenino, edad 9,08±2,20 años. La primera crisis se presentó a los 2,36±2,50 años. 23,8% tenían asma intermitente, 33,8% persistente leve, 37,6% moderada y 4,8% eran severos. La relación VEF1/CVF promedio fue de 82,42±9,51%, con cifras de VEF1 97,53±17,38%. El 17,9% tenían sobrepeso y 13,2% obesidad. Las niñas tenían mas sobrepeso y obesidad (OR 1,52, IC95% 1,06-2,19). La primera crisis se presentó antes de los 6 años en 34,1% para el grupo con sobrepeso-obesidad, con un OR = 2,39, IC95% 1,21-4,72. La presencia de crisis en el último año, ajustado por las distintas variables independientes analizadas mostró un OR 1,99, IC95% 1,01-3,95 para sobrepeso-obesidad (p=0,048). Conclusiones: la prevalencia de sobrepeso-obesidad entre los asmáticos estudiados es mayor a la publicada para población general de nuestro país a igual edad. El sexo femenino, las crisis en el último año y el inicio más temprano de la misma mostraron significativamente mayor riesgo de sobre pesoobesidad en los asmáticos estudiados.

Background: the prevalence of asthma and obesity has increased. That has get to speculation they may be related. Objectives: to describe and analyze the factors associated to overweight/obesity in asthmatic children and teenagers. Methods: cross sectional study with asthma diagnosis by Global Initiative for Asthma (GINA). BMI and percentiles for each age and gender were calculated (CDC, 2000) defining overweight and obesity study groups. Results: 559 patients, 226 (40,4 %) were female, aged 9,08 ± 2,20 years. The age of the first asthmatic attack was at 2,36 ± 2,50. 23,8% had intermittent asthma, 33,8% had persistent mild asthma, 37,6% had persistent moderate asthma and 4,8% had severe asthma. In average FEV1/FVC was 82,42 ± 9,51% with FEV1 97,53 ± 17,38%. 17,9% of them were overweight and 13,2% were obese. Girls were more overweight and obese. (OR 1,52 IC95% 1,06-2,19) 34,1% of the overweight/obese group suffered their first asthmatic attack before the age of 6; OR = 2,39 IC95% 1,21- 4,72. The presence of an attack over the past year, adjusted by other independent variables analyzed, showed OR 1,99 IC95% 1,01- 3,95 for overweightobesity (p=0,048).

Results of Perioperative Care of Patients with Congenital Heart Defects during 18 Months: Experience of the Cardiac Surgery Department of the Centro Materno Infantil. National University of Asunción

Introducción: La sobrevida de los pacientes con cardiopatías congénitas ha mejorado en los últimos años gracias al perfeccionamiento en las técnicas diagnósticas, quirúrgicas, anestésicas y de perfusión, así como al advenimiento de nuevas y más selectivas drogas cardiológicas. Objetivos: Describir el manejo perioperatorio y la evolución postoperatoria de las cirugías realizadas en el Departamento de Cardiocirugía de la Cátedra y Servicio de Pediatría del Centro Materno Infantil (CMI), FCM-UNA en 18 meses de atención y su relación con el carácter de la cirugía (electiva o de urgencia), y el estado físico preoperatorio del paciente, definido por los criterios de la American Society of Anesthesiologists (ASA). Materiales y Métodos: Estudio observacional, retrospectivo, descriptivo, con componente analítico; se utilizaron fichas clínicas de pacientes operados en el Departamento de Cardiocirugía de enero de 2007 a junio de 2008. Resultados: Fueron operados 91 pacientes, 38 de sexo masculino (42%) y 53 de sexo femenino (58%), con edades comprendidas entre 2 días y 18 años. Las cardiopatías fueron 54/91 (59,3%) patologías simples y 37/91 (40,7%) patologías complejas. Todas con confirmación diagnóstica preoperatoria por ecocardiografía Doppler color. Precisaron cateterismo cardiaco preoperatorio 3/91 pacientes (3,3%). El 100% de las cirugías se realizaron con anestesia general balanceada. De los 91 pacientes operados, 42 (46,2%) fueron sometidos a circulación extracorpórea (CEC) y 49 (53,8%) sin CEC. De los 42 pacientes operados con CEC, todas fueron cirugías correctivas, 40 (95,2%) electivas, 2 (4,8%) de urgencia, 3 (7,1%) reintervenciones y 2 (4,8%) fallecieron. Presentaron complicaciones 16 pacientes (38,1%), 39 (92,9%) requirieron Asistencia Respiratoria Mecánica (ARM) menos de 24 horas y 3 (7,1%) más de 24 horas. Los tiempos de clampado aórtico variaron de 13 a 167 minutos (media 49,1) y los tiempos de CEC de 20 a 253 minutos (media 71,9). Se realizó ultrafiltrado plasmático (UFP) en el 100% de los pacientes operados con CEC, y todos ellos recibieron aprotinina para profilaxis del sangrado. De los 49 pacientes operados sin CEC, 30 (61,2%) fueron cirugías correctivas, 19 (38,8%) paliativas, 31 (63,3%) electivas, 18 (36,7%) urgencias, 1 (2,1%) reintervención y 10 (16,3%) fallecieron. Presentaron complicaciones 18 pacientes (36,7%), 39 (79,6%) precisaron ARM menos de 24 horas y 10 (20,4%) más de 24 horas. Del total de pacientes operados, 34 presentaron alguna complicación, el 50% fue de tipo hemodinámico, 35,3% respiratorio, 23,5% neurológico, 14,7% infeccioso, 14,7% metabólico, 11,8% hematológico y 11,8% renal. El 28% de las complicaciones se presentaron en las cirugías electivas y el 65% en las urgencias. Conclusiones: La morbimortalidad de los pacientes estuvo directamente relacionada con dos factores: el carácter urgente de la cirugía y el estado físico preoperatorio del paciente (evaluado según criterio de la American Society of Anesthesiologists ASA). No hubo mortalidad en las cirugías electivas y los pacientes fallecidos correspondieron a un estado físico preoperatorio ASA 4. La utilización intraoperatoria de UFP y aprotinina contribuyó para la buena evolución de las cirugías con CEC.

Introduction: Survival of patients with congenital heart defects has improved in recent years thanks to improved diagnostic, surgical, anesthetic, and extracorporeal circulation techniques, and the arrival of new and more selective cardioactive drugs. Objectives: To describe perioperative care and postoperative progress of patients following surgery performed in the department of cardiac surgery and pediatrics department of the Centro Materno Infantil (CMI) of the national universitys school of medical sciences over a period of 18 months, and its relationship to the type of surgery performed (elective or emergency) and the patients presurgical physical status classification of the American Society of Anesthesiologists (ASA-PS). Materials and Methods: A retrospective, descriptive, observational study with an analytical component using the medical records of patients operated on in the department of cardiac surgery between January 2007 and June 2008. Results: Of the 91 patients undergoing surgery, 38 (42%) were male, and 53 (58%) were female, with ages ranging from 2 days to 18 years. Uncomplicated heart disease was found in 54 patients (59.3%), and complications confirmed by color Doppler echocardiography were found in 37 (40.7%). Cardiac catheters were needed before surgery by 3 patients (3.3%). All surgeries (100%) were performed under balanced general anesthesia. Of the 91 patients operated on, 42 (46.2%) received extracorporeal circulation (ECC) and 49 (53.8%) did not. Of the 42 patients who received ECC, all involved corrective surgery, with 40 (96.2%) of those being elective, and 2 (4.8%) emergency surgery, while 3 (7.1%) were reoperated and 2 (4.8%) died. Complications appeared in 16 patients (38.1%), with 39 (92.9%) requiring mechanically assisted ventilation (MAV) for less than 24 hours, and 3 (7.1%) who received MAV for more than 24 hours. Aortic clamping time ranged from 13 to 167 minutes (mean 49.1 min.) and ECC times from 20 to 253 minutes (mean 71.9 min.). Plasma ultrafiltration (pUF) was done in all (100%) of patients operated on who received ECC, all of whom also received prophylactic aprotinin for bleeding. Of the 49 patients operated on without ECC, 30 (61.2%) were corrective surgeries, 19 (38.8%) were palliative, 31 (63.3%) were elective, 18 (36.7%) were emergency surgery, 1 (2.1%) was a reoperation, and 10 (16.3%) died. Complications appeared in 18 patients (36.7%), with 39 (79.6%) requiring MAV for less than 24 hours, and 10 (20.4%) receiving MAV for more than 24 hours. Of the patients operated on, 34 developed complications, 28% in elective surgeries and 65% in emergency surgeries; by type these were 50% were hemodynamic; 35.3% respiratory, 23.5% neurological, 14.7% infectious, 14.7% metabolic, 11.8% hematological, and 11.8% renal. Conclusions: Morbidity and mortality were directly related to two factors: being emergency surgery, and the pre--surgical physical status classification of the patient as per the ASA-PS. There were no deaths in the elective surgeries, and the patients who died had an ASA4 preoperative physical status classification. Intraoperative use of pUF and aprotinin contributed to the favorable progress of the patients operated on with use of ECC.

Evaluation and management of the perinatal exposed to HIV

CUESTIONARIO NUMERO 43 - PREGUNTAS CORRESPONDIENTES AL TEMA: EVALUACION Y MANEJO DE LA EXPOSICIÓN PERINATAL AL VIRUS DE LA INMUNODEFICIENCIA HUMANA (VIH)

Homenaje postumo al Dr. Ricardo Arteaga Bonilla