Cystic fibrosis: when neonatal screening is unsatisfactory for early diagnosis / Fibrose cística: quando a triagem neonatal é insatisfatória para o diagnóstico precoce

Abstract Introduction: cystic fibrosis newborn screening must enable its earlier diagnosis, which may enhance outcomes. This study was a series case of delayed-diagnosis children submitted to cystic fibrosis newborn screening. Description: fourteen children were included; eight (57.1%) were due to false-negative screening, while six (42.9%) were due to processing errors. Two samples collected after 30 days of life were incorrectly classified as negative, and four infants with a positive test could not be located due to screening processing errors. Cystic fibrosis diagnosis was confirmed at a median (IQR) age of 5.3 (4.2-7.4) months. Poor nutritional status was the most prevalent clinical sign at diagnosis, being present in 78.6% of infants. The mean (SD) weight-for-length and length-for-age Z-scores were -3.46 (0.84) and -3.99 (1.16), respectively. Half of the children had Pseudo-Bartter syndrome, and 42.9% had breathing difficulties. Twelve children (85.7%) required hospitalization, with a median (IQR) length of stay of 17.0 (11.5-26.5) days. Discussion: newborn screening had some faults, from incorrect collections to inefficient active search. Early identification of these children in which screening was unsatisfactory is essential, emphasizing the importance and efforts to not miss them. In the case of a failed test, healthcare professionals must be prepared to recognize the main symptoms and signs of the disease.

Resumo Introdução: a triagem neonatal para fibrose cística deve contribuir para diagnóstico precoce e melhor prognóstico da doença. O estudo é uma série de casos com lactentes submetidos à triagem, porém com diagnóstico tardio da doença. Descrição: quatorze crianças foram incluídas; oito (57,1%) com triagem falso-negativo e seis (42,9%) com erros processuais na triagem neonatal. Duas amostras foram coletadas tardiamente, sendo incorretamente classificadas como negativas e quatro lactentes com triagem positiva não foram localizados, por erros na busca ativa. Confirmou-se o diagnóstico da fibrose cística com idade mediana (IIQ) de 5,3 (4,2-7,4) meses. O Comprometimento nutricional precoce foi o sinal clínico mais prevalente ao diagnóstico, presente em 78,6% das crianças. Os Z escores médios (SD) do peso para altura e altura para idade foram -3,46 (0,84) e -3,99 (1,16), respectivamente. Metade das crianças teve síndrome de Pseudo-Bartter e 42,9% dificuldade respiratória. Doze crianças (85,7%) precisaram hospitalização com tempo mediano de permanência de 17 dias. Discussão: a triagem neonatal para fibrose cística apresentou falhas, desde testes falso-negativos, coletas incorretas, até problemas com a busca ativa. Entretanto, o diagnóstico ágil é essencial e os profissionais de saúde devem reconhecer os sintomas e sinais precoces da doença, mesmo quando a triagem neonatal não for satisfatória.

Importancia de la detección temprana de hemoglobinopatias en la población pediátrica en países en desarrollo / Importance of early detection of hemoglobinopathies in the pediatric population in developing countries

OBJETIVO: Alertar al personal de la salud sobre la importancia de la detección temprana de las he- moglobinopatías, dado que es el trastorno monogénico recesivo más frecuente. Pacientes y MÉTODO: Estudio retrospectivo del resultado de eletroforesis capilar (CE) de 152 pacientes entre 0 y 18 años que durante el año 2017 fueron evaluados por sospecha de hemoglobinopatías en un Hospital Universitario de Colombia. La información se tomó de los registros médicos y del Laboratorio de Hematología y Hemostasia, asegurando la privacidad de los datos y aprobado por el Comité de Ética local. RESULTADOS: De 152 pacientes, 48,6% tenía entre 7 y 18 años. La frecuencia de hemoglobinopatías fue de 42,7%. La variante más frecuente fue el rasgo de células falciformes (Hb S) con 14,5%. El hematólogo fue el profesional que más frecuentemente solicitó EC. DISCUSIÓN: Se detectó que las hemoglobinopatías se diagnostican usualmente en niños mayores de siete años. Esto puede favorecer las complicaciones y progresión de la enfermedad, y aumento en los costos de la salud. Se requiere más información y educación a los médicos generales y pediatras para un diagnóstico más temprano.

OBJECTIVE: The objective of this study is to spread awareness among health personnel about the importance of early detection of hemoglobinopathies since it is the most frequent monogenic recessive disorder worldwide. PATIENTS AND METHOD: Retrospective study of the results of capillary electropho resis (CE) of 152 patients aged between 0 and 18 years who were evaluated in 2017 due to suspected hemoglobinopathies in a University Hospital in Colombia. The information was collected from me dical records and the Hematology and Hemostasis Laboratory, ensuring data privacy and approved by the local Ethics Committee. RESULTS: Of 152 patients, 48.6% were aged between 7 and 18. The frequency of hemoglobinopathies was 42.7%. The most frequent hemoglobin variant was the sickle cell trait (Hb S) with 14.5%. The hematologist was the professional who most frequently requested CE. DISCUSSION: We found that hemoglobinopathies are usually diagnosed late in pediatric patients. This may favor complications and progression of the disease and increase healthcare costs. More information and education are required for general physicians and pediatricians in order to achieve early diagnosis.

Prevalencia de diabetes y descontrol glucémico en México: resultados de la Ensanut 2016 / Prevalence of diabetes and poor glycemic control in Mexico: results from Ensanut 2016

Resumen: Objetivo: Estimar la prevalencia de diabetes (total, diagnosticada y no diagnosticada), de descontrol glucémico en México y sus factores asociados. Material y métodos: Se analizaron 3 700 adultos participantes en la Encuesta Nacional de Salud y Nutrición de 2016. Se estimaron las prevalencias con ponderadores poblacionales y los factores asociados con diabetes total y descontrol glucémico con modelos de regresión de Poisson. Resultados: La prevalencia total de diabetes fue de 13.7% (9.5% diagnosticada, 4.1% no diagnosticada); 68.2% de los diagnosticados presentó descontrol glucémico. Mayor tiempo de diagnóstico, vivir en el centro/sur del país y ser atendido en farmacias se asoció con descontrol glucémico, mientras que ser atendido en los servicios de seguridad social se asoció con mejor control glucémico. Conclusión: Se requieren esfuerzos multisectoriales para fortalecer el tamizaje, diagnóstico oportuno y control de la enfermedad, considerando las diferencias por región y tipo de servicio de salud.

Abstract: Objective: To estimate the prevalence of total, diagnosed and undiagnosed diabetes, and the prevalence of poor glycemic control in Mexico, and its associated factors. Materials and methods: Data from 3 700 adult participants were analysed in the 2016 National Health and Nutrition Survey. Diabetes prevalences were estimated with population weights, and the factors associated with total diabetes and poor glycemic control with Poisson regression models. Results: The total prevalence of diabetes was 13.7% (9.5% diagnosed, 4.1% undiagnosed); 68.2% of people with diagnosed diabetes presented poor glycemic control. Longer disease duration, living in the centre or south of the country and being treated in pharmacies were associated with poor glycemic control. Being treated in a social security system was associated with better glycemic control. Conclusion: Multisectoral efforts are needed to strengthen screening, timely diagnosis and disease control, considering differences by region and type of health service.

Frecuencia y determinantes del retraso en el diagnóstico de cáncer infantil en Argentina / Frequency and determinants of the delay in the diagnosis of cancer in children, in Argentina

En Argentina, la mortalidad por cáncer infantil es mayor que en países más desarrollados, siendo el diagnóstico tardío una de las posibles causas. Nuestro objetivo fue determinar la frecuencia de obstáculos al diagnóstico enfrentados por las familias de niños con cáncer asistidas por un Organismo No Gubernamental, y algunos factores demográficos, institucionales y médicos asociados. Se realizó un análisis retrospectivo observacional y cuantitativo del recorrido diagnóstico de los niños con cáncer asistidos por la Fundación N.D. Flexer, Argentina, entre el 1/1/2011 y el 31/12/2015. El resultado primario fue la presencia de obstáculos para acceder al diagnóstico. Se consideró que existió un obstáculo cuando tuvieron lugar consultas no orientativas, demora familiar, demora institucional, autoderivación y/o más de 30 días entre la aparición de síntomas y el diagnóstico. La frecuencia dentro de cada categoría se contrastó mediante la prueba de χ2. La influencia de distintas variables se evaluó mediante una regresión logística multivariada. De 1818 familias incluidas, 63.5% enfrentaron algún tipo de obstáculos. Resultaron moduladores negativos el diagnóstico antes del año, de tumor renal y la concurrencia a un hospital público de la Ciudad de Buenos Aires o de capital provincial como centro de primer contacto (todos p < 0.0001). Resultaron moduladores positivos el diagnóstico de tumor óseo (p = 0.009) y los centros de atención primaria (p < 0.0001) y consultorios particulares (p = 0.001) como centros de primer contacto. El principal factor no biológico asociado a la frecuencia de obstáculos al diagnóstico de cáncer infantil fue el tipo de centro de primer contacto.

In Argentina, mortality from childhood cancer is higher than in more developed countries, with late diagnosis being one of the possible causes. Our objective was to determine the frequency of barriers to diagnosis faced by families assisted by a Non-Governmental Organization, and some associated demographic, institutional and medical factors. A retrospective observational and quantitative analysis of the diagnosis pathway of children with cancer assisted by the N.D. Flexer Foundation, Argentina, between 1/1/2011 and 12/31/2015 was carried out. The primary outcome was the presence of barriers to diagnosis. It was considered that there was a barrier when there were consultations without diagnostic suspicion, family delay, institutional delay, self-derivation and/ or more than 30 days between the onset of symptoms and diagnosis. The frequency of barriers within each category was contrasted by the χ2 test. A multivariate logistic regression was used to examine its association with relevant variables. Among the 1818 families included, 63.5% faced delays/ barriers to diagnosis. Negative modulators were diagnosis at age younger than 1-year, renal tumor and first attention at a public hospital of the City of Buenos Aires or a provincial capital hospital (all p < 0.0001). Positive modulators were the diagnosis of bone tumor (p = 0.009) and first attention at a primary healthcare center (p< 0.0001) or private doctor's office (p= 0.001). The main non-biological factor associated with the possibility of facing barriers to diagnosis was the type of first contact-health institution.

Actividad física y calidad de vida en personas con enfermedad renal crónica / Association of physical activity with quality of life in patients with chronic kidney disease

Background: Physical activity may improve quality of life in patients with chronic kidney disease. Aim: To assess the relationship between physical activity and quality of life in patients with Chronic Kidney Disease. Material and Methods: The Kidney Disease Quality of Life-36 (KDQOL-36) and the International Physical Activity questionnaire were answered by 130 patients with chronic kidney disease (74 women, 80 receiving renal substitution therapy). Sociodemographic variables were recorded. Results: Patients on renal substitution therapy with a time lapse since diagnosis of 0 to 6 months had higher levels of physical activity than those with longer time lapses (51.4 ± 12.5 and 34.6 ± 8.1 minutes respectively). Disease burden scores were lower among patients with renal substitution therapy. There was a direct correlation between levels of vigorous and moderate physical activity and the physical functioning dimension in the quality of life questionnaire for patients with more than 19 months of disease. The dimension general physical health was significantly associated with physical activity in women and patients with 7 to 18 months of diagnosis. The dimension disease burden was associated with physical activity in women, patients not receiving substitution therapy and those with 7 to 18 months of diagnosis. Conclusions: Moderate and vigorous physical activity is directly related to the dimensions physical functioning, the general perception of physical health and inversely related with the dimension burden of disease.

Diagnóstico tardio de sífilis congênita: uma realidade na atenção à saúde da mulher e da criança no brasil / Late diagnosis of congenital syphilis: a recurring reality in women and children health care in brazil

RESUMO Objetivo: Descrever um caso de sífilis congênita com diagnóstico tardio e identificar as oportunidades perdidas nas diversas fases/níveis da atenção à saúde, que retardaram a realização do diagnóstico. Descrição do caso: Menino, 34 dias de vida, encaminhado da Unidade Básica de Saúde a um hospital terciário por apresentar aumento do volume abdominal e icterícia progressiva há 2 semanas, hipocolia fecal, hepatoesplenomegalia, anemia, plaquetopenia e elevação de enzimas hepáticas. Ao exame físico, apresentava lesões eritemato-descamativas nas mãos e nos pés e exantema macular em região inguinal, presença de ascite, fígado palpável a 5 cm do rebordo costal direito e baço palpável a 3 cm do rebordo costal esquerdo. Sorologia do lactente: CMIA (quimioluminescência de micropartículas) reagente, VDRL (Venereal Diseases Research Laboratory) 1:1024 e TPHA (Treponema pallidum Hemaglutination) reagente. Sorologia materna: CMIA e TPHA reagentes, VDRL 1:256. Radiografia de ossos longos mostrava periostite simétrica; levantamento periosteal; e bandas metafisárias lucentes em fêmures, úmeros, ulnas e tíbias. Após tratamento com penicilina cristalina, apresentou melhora clínica e laboratorial, recebendo alta no 18º dia de internação. Comentários: Este caso mostra que ainda ocorre diagnóstico tardio de sífilis congênita por falhas nas estratégias de prevenção dessa doença, tanto na atenção básica quanto nos níveis secundário e terciário. A aplicação das intervenções preconizadas pelo Ministério da Saúde e a identificação das situações em que ocorrem falhas na sua execução são importantes para a avaliação da assistência de rotina em todos os níveis de atenção e nas diversas unidades responsáveis pelo cuidado do recém-nascido e do lactente jovem.

ABSTRACT Objective: To describe a case of congenital syphilis with a late diagnosis and identify missed opportunities at diverse phases/levels of healthcare, which led to late diagnosis. Case description: Boy, 34 days of life, referred from a basic healthcare unit to a tertiary hospital due to enlarged abdominal volume and progressive jaundice for 2 weeks, fecal hypocholia, hepatosplenomegaly, anemia, low platelet count and elevated liver enzymes. At physical examination, the infant presented with erythematous-exfoliative lesions on the palms and soles, macular rash in the inguinal region, ascitis, palpable liver 5 cm below the right costal margin and a palpable spleen 3 cm from the left costal margin. Infant serology: reactive CMIA (chemiluminescent microparticle immunoassay), VDRL (Venereal Diseases Research Laboratory) 1:1024 and reactive TPHA (Treponema pallidum Hemagglutination). Maternal serology: reactive CMIA and TPHA, VDRL 1:256. Radiography of the long bones showed symmetric periostitis, periosteal thickening, and lucent bands in the femur, humerus, ulna and tibia. After treatment with crystalline penicillin, the infant showed clinical and laboratory improvement, receiving hospital discharge at the 18th hospitalization day. Comments: This case shows that congenital syphilis is occasionally diagnosed late as a result of failed strategies to prevent this disease, both in the basic and secondary/tertiary levels of care. The application of interventions recommended by the Ministry of Health and identification of the situation in which there is ineffective implementation of these measures are important to assess routine care in all levels of healthcare and diverse units responsible for newborn and infant health care.

Barriers to early identification of autism in Brazil

Objective: Parents of children with autism spectrum disorders (ASD) seem to perceive that their child's development is not following the normal pattern as early as the first year of life. However, ASD children may not receive a diagnosis until they are of preschool age, especially in low- and middle-income countries. The objective of this study was to evaluate the pathway between initial parental concerns about atypical child development and ASD diagnosis in Brazil. Methods: Nineteen mothers whose children had been diagnosed with ASD participated and were interviewed. The ASD group consisted of two girls and 17 boys, with a mean age of 93.0 months (SD 48.4 months; range 39-197 months). Results: Mothers had their first concerns regarding ASD when children were 23.6±11.6 months old, but formal diagnosis occurred at a mean ± SD age of 59.6±40.5 months, corresponding to a 3-year delay. Most mothers felt discouraged to address their concerns due to negative experiences with health professionals. Conclusion: In Brazil, mothers perceived the first signs of ASD in their children at an age similar to that reported in other countries, but the diagnosis of ASD seemed to be delayed. Consistent with the literature, mothers reported negative experiences with health professionals during the pathway to achieving ASD diagnosis.

Perception of stroke symptoms and utilization of emergency medical services / Percepción de los síntomas del accidente cerebrovascular y utilización de los servicios de emergencias médicos

ABSTRACT Lack of stroke awareness and slow activation of emergency medical services (EMS) are frequently reported reasons for delayed arrival to the hospital. We evaluated these variables in our population. Methods Review of hospital records and structured telephone interviews of 100 consecutive stroke patients. Forward stepwise logistic regression was used for the statistical analysis. Results Seventy patients (75%) arrived at the hospital 4.5 hours after stroke symptoms onset. The use of EMS did not improve arrival times. Most patients who recognized their symptoms did not use EMS (p < 0.02). Nineteen patients (20%) were initially misdiagnosed. Eighteen of them were first assessed by non-neurologist physicians (p < 0.001). Conclusions Our population showed a low level of stroke awareness. The use of EMS did not improve arrival times at the hospital and the non-utilization of the EMS was associated with the recognition of stroke symptoms. There was a concerning rate of misdiagnosis, mostly by non-neurologist medical providers.

RESUMO La falta de reconocimiento de los síntomas del accidente cerebrovascular (ACV) y la lenta activación de los servicios de emergencias médicos (SEM) son causas frecuentes de demoras en el arribo hospitalario. Nuestro objetivo fue evaluar ambas variables en nuestra población. Métodos Revisión de registros hospitalarios y entrevista telefónica estructurada de 100 pacientes consecutivos internados por ACV. El análisis estadístico se realizó mediante un modelo de regresión logística multivariada por pasos. Resultados Setenta pacientes (75%) arribaron al hospital luego de 4.5 horas del comienzo de los síntomas. El uso de los SEM no mejoró los tiempos de arribo al hospital (p < 0.02). Inicialmente, 19 pacientes (20%) recibieron un diagnóstico erróneo. Dieciocho de ellos fueron evaluados por médicos no neurólogos. (p < 0.001). Conclusiones El reconocimiento de los síntomas de ACV en nuestra población fue bajo. El uso de los SEM no mejoró los tiempos de arribo hospitalario y la no utilización de los mismos se asoció con el correcto reconocimiento de los síntomas por parte de los pacientes. La proporción de diagnósticos erróneos fue preocupante, fundamentalmente entre médicos no neurólogos.

Diagnóstico tardío y enfermedad avanzada de VIH en pacientes adultos en un hospital de la seguridad social de Perú / Late diagnosis and advanced disease of HIV in adult patients from a Peruvian social security hospital

Background: The delayed HIV diagnosis with CD4 count is a public health problem. Objective: To determinate the frequency and the factors associated with a late diagnosis (LD) and to an advanced disease (AD) of HIV infection in patients from a Peruvian hospital. Materials and Methods: Analytic and transversal study of secondary data from adult’s patients diagnostic with HIV during the period 1999-2012. Results and Conclusions: From 1,714 patients, 82.6% (1416) had LD, and 64.5% (1106) were diagnostic with AD. Were associated with them: being of male sex (LD: 17% and AD: 28%; p < 0.001), have between 41-60 years (LD: 9% and AD: 15%; p < 0.001), have more than 60 years old (LD: 14% and AD: 23%; p < 0.003), being bisexual (LD: 18% and AD: 43%; p < 0.001), drugs abusers (LD: 24% and AD: 64%; p < 0.001). Being heterosexual was associated with less frequency (LD: 12% and AD: 19%; p < 0.001). The frequency of LD and AD of HIV are high and factors associated with them were male sex, being 40 years old or more, and belonging to sexually risk groups (homosexuals and bisexuals) and drugs abusers.

Introducción: La demora en el diagnóstico de la infección por VIH mediante el recuento de LT CD4 es un problema de salud pública. Objetivo: Determinar la frecuencia y factores asociados al diagnóstico tardío (DT) y enfermedad avanzada (EA) de infección por VIH en pacientes atendidos en un hospital peruano. Materiales y Métodos: Estudio transversal analítico de datos secundarios de pacientes adultos con diagnóstico de infección por VIH atendidos durante el período 1999-2012. Resultados y Discusión: De 1.714 pacientes, 82,6% (1.416) tuvo DT y 64,5% (1.106) EA. Estuvieron asociados con una mayor frecuencia: el sexo masculino (DT: 17% y EA: 28%; p < 0,001), edad entre 41-60 años (DT: 9% y EA: 15%; p < 0,001), edad mayor a 60 años (DT: 14% y EA: 23%; p < 0,003), orientación bisexual (DT: 18% y EA: 43%; p < 0,001), orientación homosexual (DT: 8%; p < 0,001) y usuarios de drogas (DT: 24% y EA: 64%; p < 0,001). El ser heterosexual estuvo asociado a una menor frecuencia (DT: 12% y EA: 19%; p < 0,001). Conclusión: Se encontró una alta la frecuencia de DT y la EA, y los factores asociados a éstas fueron: sexo masculino, grupos sobre 40 años de edad, grupos sexuales de riesgo (homosexuales y bisexuales) y consumidores de drogas.

Impact of delay in the diagnosis and treatment of head and neck cancer / Impacto da demora no diagnóstico e tratamento no câncer de cabeça e pescoço

ABSTRACT INTRODUCTION: Head and neck tumors can be easily recognized through clinical evaluation. However, they are often diagnosed at advanced stages. OBJECTIVE: To evaluate the delay from the patient's initial symptoms to the definitive treatment. METHODS: Retrospective study of patients enrolled in 2011 and 2012. A questionnaire was filled in about socioeconomic aspects, patient history, tumor data, professionals who evaluated the patients, and the respective time delays. RESULTS: The following time delay medians were observed: ten months between symptom onset and the first consultation; four weeks between the latter and the first consultation with a specialist; four weeks between the specialist consultation and diagnosis attainment; and 12 weeks between diagnosis and the start of treatment. CONCLUSIONS: Most head and neck tumors are diagnosed at advanced stages, due to patient and health care factors.

RESUMO INTRODUÇÃO: Apesar de poderem ser facilmente reconhecidos ao exame clínico, os tumores de cabeça e pescoço são, muitas vezes, diagnosticados em estadiamento avançado. OBJETIVO: Avaliar a demora entre o surgimento dos sintomas iniciais do paciente e seu encaminhamento para o tratamento definitivo. MÉTODO: Trata-se de um estudo retrospectivo de pacientes arrolados em 2011 e 2012. Foi preenchido questionário sobre fatores sócio-econômicos, antecedentes, dados do tumor, profissionais que avaliaram os pacientes e respectivos períodos de demora. RESULTADOS: Foram observadas as seguintes medianas de tempo de demora: 10 meses entre o início dos sintomas e o primeiro atendimento; 4 semanas entre este e a primeira consulta com o especialista; 4 semanas entre esta e o estabelecimento do diagnóstico; e 12 semanas entre este e o início do tratamento. CONCLUSÕES: A maior parte dos cânceres de cabeça e pescoço é diagnosticada em estádios avançados, por fatores relacionados aos pacientes e à atenção à saúde.

Maple syrup urine disease in Brazil: a panorama of the last two decades / Doença da urina de xarope de bordo no Brasil: um panorama das últimas duas décadas

OBJECTIVE: To characterize a sample of Brazilian patients with maple syrup urine disease (MSUD) diagnosed between 1992 and 2011. METHODS: In this retrospective study, patients were identified through a national reference laboratory for the diagnosis of MSUD and through contact with other medical genetics services across Brazil. Data were collected by means of a chart review. RESULTS: Eighty-three patients from 75 families were enrolled in the study (median age, 3 years; interquartile range [IQR], 0.57-7). Median age at onset of symptoms was 10 days (IQR 5-30), whereas median age at diagnosis was 60 days (IQR 29-240, p = 0.001). Only three (3.6%) patients were diagnosed before the onset of clinical manifestations. A comparison between patients with (n = 12) and without (n = 71) an early diagnosis shows that early diagnosis is associated with the presence of positive family history and decreased prevalence of clinical manifestations at the time of diagnosis, but not with a better outcome. Overall, 98.8% of patients have some psychomotor or neurodevelopmental delay. CONCLUSION: In Brazil, patients with MSUD are usually diagnosed late and exhibit neurological involvement and poor survival even with early diagnosis. We suggest that specific public policies for diagnosis and treatment of MSUD should be developed and implemented in the country. .

OBJETIVO: Caracterizar uma amostra de pacientes brasileiros com a doença da urina de xarope de bordo (DXB) diagnosticados entre 1992 e 2011. MÉTODOS: Os pacientes foram identificados por meio de um laboratório de referência nacional para o diagnóstico de DXB e por meio do contato com outros serviços de genética médica no Brasil. Os dados foram coletados por meio de uma revisão de prontuários. RESULTADOS: Foram incluídos no estudo 83 pacientes de 75 famílias (idade média: três anos; intervalo interquartil (IQR): 0,57-7). A idade média no surgimento dos sintomas era de 10 dias (IQR: 5-30), ao passo que a idade média no diagnóstico era de 60 dias (IQR: 29-240; p = 0,001). Somente três (3,6%) pacientes foram diagnosticados antes do surgimento de manifestações clínicas. Uma comparação entre pacientes com (n = 12) e sem (n = 71) um diagnóstico precoce mostra que o diagnóstico precoce está associado à presença de histórico familiar positivo e à redução na prevalência de manifestações clínicas no momento do diagnóstico, porém sem melhor resultado. Em geral, 98,8% dos pacientes têm algum atraso no desenvolvimento psicomotor ou neurológico. CONCLUSÃO: No Brasil, os pacientes com DXB normalmente recebem um diagnóstico tardio e exibem um envolvimento neurológico e baixa sobrevivência, mesmo com um diagnóstico precoce. Sugerimos que políticas públicas específicas para o diagnóstico e tratamento da DXB sejam desenvolvidas e implementadas no país. .

Clinicopathologic Characteristics of Interval Gastric Cancer in Korea

BACKGROUND/AIMS: Interval gastric cancer (IGC) is defined as cancer that is diagnosed between the time of screening and postscreening esophagogastroduodenoscopy (EGD). Unfortunately, little is known about the characteristics of IGC in Korea, a country with a high incidence of gastric cancer. The aim of this study was to evaluate the clinicopathologic characteristics of IGCs in Korea. METHODS: From January 2006 to July 2011, a total of 81,762 subjects underwent screening EGD at Yonsei University Health Promotion Center, Seoul, Korea. We defined missed cancer as cancer diagnosed within 1 year of screening EGD and latent cancer as cancer diagnosed more than 1 year after EGD. RESULTS: A total of 16 IGC patients (17 lesions; three missed cancers and 14 latent cancers) were identified, with a mean age of 60.68 years and a mean interval time of 19.64 months. IGCs tended to be undifferentiated (12/17, 70.6%), located in the lower body of the stomach (12/17, 70.6%) and exhibited flat/depressed endoscopic morphology (11/17, 64.7%). The patients with missed cancer were generally younger than the patients with latent cancer (51.3 years vs 62.8 years, p=0.037), and the patients with undifferentiated cancer were significantly younger than those with differentiated cancer (57.0 years vs 68.8 years, p=0.008). CONCLUSIONS: IGCs tended to be undifferentiated, located in the lower body of the stomach, and exhibited flat/depressed endoscopic morphology.

Clinicopathologic Characteristics of Interval Gastric Cancer in Korea

BACKGROUND/AIMS: Interval gastric cancer (IGC) is defined as cancer that is diagnosed between the time of screening and postscreening esophagogastroduodenoscopy (EGD). Unfortunately, little is known about the characteristics of IGC in Korea, a country with a high incidence of gastric cancer. The aim of this study was to evaluate the clinicopathologic characteristics of IGCs in Korea. METHODS: From January 2006 to July 2011, a total of 81,762 subjects underwent screening EGD at Yonsei University Health Promotion Center, Seoul, Korea. We defined missed cancer as cancer diagnosed within 1 year of screening EGD and latent cancer as cancer diagnosed more than 1 year after EGD. RESULTS: A total of 16 IGC patients (17 lesions; three missed cancers and 14 latent cancers) were identified, with a mean age of 60.68 years and a mean interval time of 19.64 months. IGCs tended to be undifferentiated (12/17, 70.6%), located in the lower body of the stomach (12/17, 70.6%) and exhibited flat/depressed endoscopic morphology (11/17, 64.7%). The patients with missed cancer were generally younger than the patients with latent cancer (51.3 years vs 62.8 years, p=0.037), and the patients with undifferentiated cancer were significantly younger than those with differentiated cancer (57.0 years vs 68.8 years, p=0.008). CONCLUSIONS: IGCs tended to be undifferentiated, located in the lower body of the stomach, and exhibited flat/depressed endoscopic morphology.

Atrasos nos encaminhamentos de pacientes com câncer bucal: avaliação qualitativa da percepção dos cirurgiões-dentistas / Delayed referrals of oral cancer patients: the perception of dental surgeons

O objetivo deste estudo é verificar, na percepção dos cirurgiões-dentistas atuantes em Atenção Primária em Saúde (APS) em Porto Alegre (RS), quais as possíveis razões que justifiquem o atraso da chegada do paciente com câncer bucal aos setores de atenção em saúde de maior complexidade. O presente estudo teve como público-alvo cirurgiões-dentistas atuantes em cinco diferentes realidades laborais em APS em Porto Alegre. Foram utilizados como critérios de inclusão profissionais com formação em APS e que estivessem atuando na Atenção Básica. O instrumento para coleta de dados foi a técnica de grupo focal com aplicação de questionário estruturado. Uma vez coletados os dados, foi realizada análise interpretativa e categorização das informações em quatro eixos centrais: profissional, equipe, comunidade e rede de serviços. Os resultados sugerem que os seguintes fatores estão associados ao atraso da chegada do paciente com câncer bucal aos setores de atenção em saúde de maior complexidade: falha na identificação precoce, ausência de trabalho multidisciplinar, desvalorização da necessidade de corresponsabilização pela própria saúde por parte da comunidade e a deficiência da rede de atenção no que tange a qualidade da comunicação entre profissionais de diferentes níveis de atenção.

The scope of this study was to verify the possible reasons to justify the delay in the referral of oral cancer patients to specialized health care sectors from the standpoint of the dental surgeons involved in Primary Health Care (PHC) in Porto Alegre, state of Rio Grande do Sul. This target public of this study was dental surgeons working in five different labor environments in PHC in Porto Alegre. Criteria for inclusion was dental surgeons graduated in and working in PHC. The data collection instrument was the focus group technique and application of a structured questionnaire. After data collection, interpretative analysis was conducted with classification of the information under four main headings: professional, team, community and services network. The results suggest that there are several factors associated with delayed in referral of patients with oral cancer to specialized health care sectors. These include omission of early diagnosis, lack of multidisciplinary work and insufficient attention to the need for joint community responsibility with patients for their own health status. It is also due to deficiencies in the health service network, specifically regarding the quality of communication between professionals at different levels of the health services. .

Características de eventos adversos evitáveis em hospitais do Rio de Janeiro / The feature of preventable adverse events in hospitals in the State of Rio de Janeiro, Brazil

OBJETIVO: Analisar as características dos eventos adversos (EAs) evitáveis em pacientes internados em hospitais do Rio de Janeiro, com vista a identificar elementos que sirvam de substrato à ações prioritariamente voltadas para melhoria da segurança do paciente. MÉTODOS: Análise de dados coletados no estudo de base de coorte retrospectivo para avaliação da ocorrência de EAs em uma amostra de prontuários em três hospitais de ensino do estado do Rio de Janeiro para descrever as características dos EAs evitáveis. RESULTADOS: Na amostra de 1.103 pacientes foram identificados 65 EAs evitáveis dos 56 pacientes que sofreram EAs evitáveis. As infecções associadas aos cuidados da saúde (IACS) representaram 24,6%; complicações cirúrgicas e/ou anestésicas, 20,0%; danos decorrentes do atraso ou falha no diagnóstico e/ou tratamento, 18,4%; úlceras por pressão, 18,4%; danos de complicações na punção venosa, 7,7%; danos devido a quedas, 6,2%; danos em consequência do emprego de medicamentos, 4,6%. EAs evitáveis foram responsáveis por 373 dias adicionais de permanência no hospital. CONCLUSÃO: O estudo mostrou que os EAs mais frequentes são as IACS, tal como observado em outros países em desenvolvimento. Apesar das limitações do estudo, a descrição da caracterização dos EAs evitáveis indica que ações disponíveis e consagradas voltadas para diminuir as IACS, como a higienização das mãos, a prevenção a úlcera por pressão, o estímulo a adesão a protocolo e diretrizes clínicas e o estabelecimento de programas de educação continuada de profissionais de saúde, devem compor a lista de prioridades dos gestores hospitalares e dos profissionais de saúde envolvidos no cuidado ao paciente hospitalizado.

OBJECTIVE: To analyze the features of preventable adverse events (AEs) in hospitals inpatient in the State of Rio de Janeiro, in Brazil, in order to identify elements that serve as a substrate for priority actions aimed at improving patient safety. METHODS: Analysis of data from a baseline retrospective cohort study to assess the incidence of AEs in a sample of records in three teaching hospitals in the State of Rio de Janeiro to describe the features of preventable AEs. RESULTS: In a sample of 1,103 patients, were identified 65 preventable AEs of 56 patients who suffered preventable AEs. The healthcare associated infections (HAI) accounted for 24.6% of preventable AEs; surgical complications and/or anesthetic, 20.0%; damages arising from delay or failure in diagnosis and/or treatment, 18.4%, pressure ulcers, 18.4%; damage from complications of venipuncture, 7.7%; damage due to falls, 6.2%; damage as a result of the use of drugs, 4.6%. The preventable AEs were responsible for additional 373 days of hospital stay. CONCLUSION: The HAI is the major preventable AEs, as observed in other developing countries. Despite the limitations of the study, the characterization of preventable AEs indicates that known and effective actions available to reduce HAI, such as hand hygiene, to prevent pressure ulcers, to encourage adherence to protocol and clinical guidelines and to create continuing education programs for health professionals, should compose the list of priorities of hospital managers and health professionals involved in the care of hospitalized patients.

Delayed diagnosis of sarcoidosis is common in Brazil / Diagnóstico tardio da sarcoidose é comum no Brasil

OBJECTIVE: To determine the frequency of and the factors related to delayed diagnosis of sarcoidosis in Brazil. METHODS: We evaluated patients with a biopsy-proven diagnosis of sarcoidosis, using a questionnaire that addressed the following: time since symptom onset and since the first medical visit; and the number and specialty of the physicians visited. We divided the patients by the timeliness of the diagnosis-timely (< 6 months) and delayed (≥ 6 months)-comparing the two groups in terms of systemic and pulmonary symptoms; extrathoracic involvement; spirometric data; radiological staging; level of education; income; and tuberculosis (diagnosis and treatment). RESULTS: We evaluated 100 patients. The median number of physicians consulted was 3 (range, 1-14). In 11 cases, sarcoidosis was diagnosed at the first visit. In 54, the first physician seen was a general practitioner. The diagnosis of sarcoidosis was timely in 41 patients and delayed in 59. The groups did not differ in terms of gender; race; type of health insurance; level of education; income; respiratory/systemic symptoms; extrathoracic involvement; and radiological staging. In the delayed diagnosis group, FVC was lower (80.3 ± 20.4% vs. 90.5 ± 17.1%; p = 0.010), as was FEV1 (77.3 ± 19.9% vs. 86.4 ± 19.5%; p = 0.024), misdiagnosis with and treatment for tuberculosis (≥ 3 months) also being more common (24% vs. 7%, p = 0.032, and 20% vs. 0%; p = 0.002, respectively). CONCLUSIONS: The diagnosis of sarcoidosis is often delayed, even when the imaging is suggestive of sarcoidosis. Delayed diagnosis is associated with impaired lung function at the time of diagnosis. Many sarcoidosis patients are misdiagnosed with and treated for tuberculosis. .

OBJETIVO: Avaliar a frequência do diagnóstico tardio de sarcoidose no Brasil e os fatores relacionados a esse atraso. MÉTODOS: Avaliamos pacientes com diagnóstico de sarcoidose confirmado por biópsia utilizando um questionário que abordava o tempo entre o início dos sintomas e a data da primeira consulta médica; e o número e especialidades dos médicos consultados. Sintomas sistêmicos e pulmonares, envolvimento extratorácico, dados espirométricos, estadiamento radiológico, escolaridade, renda individual e diagnóstico/tratamento de tuberculose foram comparados entre os pacientes com diagnóstico precoce (< 6 meses até o diagnóstico) e tardio (≥ 6 meses). RESULTADOS: Foram incluídos 100 pacientes. A mediana do número de médicos consultados foi 3 (variação: 1-14). O diagnóstico de sarcoidose foi feito na primeira consulta em 11 casos. Um clínico geral foi inicialmente consultado em 54 casos. O diagnóstico de sarcoidose foi precoce em 41 casos e tardio em 59. Não houve diferença entre os grupos no tocante ao gênero, raça, tipo de seguro saúde, escolaridade, renda, sintomas sistêmicos e respiratórios, envolvimento extratorácico e estadiamento radiológico. Os pacientes com diagnóstico tardio apresentavam menor CVF (80,3 ± 20,4% vs. 90,5 ± 17,1%; p = 0,010) e VEF1 (77,3 ± 19,9% vs. 86,4 ± 19,5%; p = 0,024), além de mais frequentemente receberem diagnóstico de tuberculose (24% vs. 7%; p = 0,032) e tratamento para tuberculose (≥ 3 meses; 20% vs. 0%; p = 0,002). CONCLUSÕES: O diagnóstico de sarcoidose é tardio em muitos casos, mesmo quando há achados de imagem sugestivos. O diagnóstico tardio está associado a menor função pulmonar na época do diagnóstico. Vários ...

O atraso no diagnóstico da tuberculose / El retraso en el diagnóstico de la tuberculosis / The delay in diagnosis of tuberculosis

Objetivo: investigar estudos relacionados ao atraso do diagnóstico da tuberculose. Método: revisão de literatura no período de 2005 a 2010 em bases de dados eletrônicas. Resultados: foram selecionados 13 estudos de acordo com a temática, houve predomínio de estudos originais com abordagem quantitativa. Conclusão: o atraso no diagnóstico da tuberculose não é uma preocupação recente, principalmente nos países com altos índices de tuberculose. Quanto ao tipo de atraso, faz-se necessário investigar se é do serviço de saúde ou dos indivíduos com tuberculose. De forma geral, os aspectos que influenciam no tempo para o diagnóstico da TB estão relacionados com cada localidade, que possuem características peculiares

Objective: to investigate studies related to delay in diagnosis of tuberculosis. Method: A literature review in the period from 2005 to 2010 in electronic databases. Results: 13 studies were selected according to the theme, there was a predominance of original studies with quantitative approach. Conclusion: the delay in the diagnosis of tuberculosis is not a recent concern, especially in countries with high rates of tuberculosis. Regarding the type of delay, it is necessary to investigate whether the health service or the individuals with TB. In general, the factors influencing the time for diagnosis of TB are connected with each location having peculiar characteristics

Objetivo: investigar los estudios relacionados con el retraso en el diagnóstico de la tuberculosis. Método: Una revisión de la literatura en el período de 2005 a 2010 en las bases de datos electrónicas. Resultados: 13 estudios fueron seleccionados de acuerdo con el tema, hubo un predominio de los estudios originales con enfoque cuantitativo. Conclusión: el retraso en el diagnóstico de la tuberculosis no es un problema reciente, especialmente en los países con altas tasas de tuberculosis. En cuanto al tipo de retraso, es necesario investigar si el servicio de salud o las personas con TB. En general, los factores que influyen en el tiempo para el diagnóstico de TB están conectados con cada ubicación que tiene características peculiares

Late-stage diagnosis of HIV infection in Brazilian children: evidence from two national cohort studies / Diagnóstico tardio da infecção por HIV em crianças brasileiras: evidências baseadas em dois estudos nacionais de coorte / Diagnóstico tardío de la infección por VIH en niños brasileños: evidencias basadas en dos estudios nacionales de cohorte

This study analyzed data from two consecutive retrospective cohort samples (1983 to 1998 and 1999 to 2002) of Brazilian children with AIDS (N = 1,758) through mother-to-child-transmission. Late-stage diagnosis (CDC category C) was investigated in relation to the following variables: year of birth, year of HIV diagnosis, and time periods related to changes in government treatment guidelines. Late-stage diagnosis occurred in 731 (41.6%) of cases and was more prevalent in infants under 12 months of age. The rate of late-stage diagnosis decreased from 48% to 36% between the two periods studied. We also observed a reduction in the proportion of late-stage diagnoses and the time lapse between HIV diagnosis and ART initiation. A significant association was found between timely diagnosis and having been born in recent years (OR = 0.62; p = 0.009) and year of HIV diagnosis (OR = 0.72; p = 0.002/OR = 0.62; p < 0.001). Infants under the age of 12 months were more likely to be diagnosed at a late stage than older children (OR = 1.70; p = 0.004). Despite advances, there is a need to improve the effectiveness of policies and programs focused on improving early diagnosis and management of HIV/AIDS.

Analisaram-se dados de duas coortes retrospectivas consecutivas (1983-1998, 1999-2002) de crianças brasileiras com AIDS (n = 1.758), expostas ao HIV por transmissão vertical. Ocorrência de diagnóstico tardio (categoria C-CDC) foi verificada para: ano de nascimento, ano de diagnóstico da infecção e períodos relacionados a mudanças das diretrizes terapêuticas governamentais. Encontramos 731 (41,6%) crianças com diagnóstico em estágio tardio, especialmente com < 1 ano de idade. No segundo período o desempenho do diagnóstico melhorou (36 vs. 48% de atraso diagnóstico no primeiro período). Verificou-se melhoria da proporção de crianças com diagnóstico tardio e do tempo entre o diagnóstico da infecção e a introdução da terapia antirretroviral. Ano de nascimento (OR = 0,62; p = 0,009) e ano de diagnóstico da infecção (OR = 0,72; p = 0,002/OR = 0,62; p < 0,001) mais recentes estiveram significativamente associados a diagnóstico oportuno. Crianças com idade < 1 ano tiveram maior risco para diagnóstico tardio do que as mais velhas (OR = 1,70; p = 0,004). Apesar dos avanços, há necessidade de potencializar diagnóstico e manejo oportunos.

Se analizaron datos de dos cohortes retrospectivas consecutivas (1983-1998, 1999-2002) de niños brasileños con SIDA (N = 1.758), expuestos al VIH por transmisión vertical. La ocurrencia de diagnóstico tardío (categoría C-CDC) fue verificada para: año de nacimiento, año de diagnóstico de la infección y períodos relacionados con cambios de las directrices terapéuticas gubernamentales. Hubo 731 (41,6%) niños con diagnóstico en estadio tardío, especialmente con < 1 año de edad. En el segundo período el desempeño del diagnóstico mejoró (36 versus 48% de atraso diagnóstico). Se verificó una mejoría de la proporción de niños con diagnóstico tardío y del tiempo entre diagnóstico de la infección e introducción de la terapia antirretroviral. Los años de nacimiento (OR = 0,62; p = 0,009) y años de diagnóstico de la infección (OR = 0,72; p = 0,002/OR = 0,62; p < 0,001) más recientes estuvieron significativamente asociados a un diagnóstico oportuno. Los niños con edad < 1 año tuvieron mayor riesgo para un diagnóstico tardío que los más viejos (OR = 1,70; p = 0,004). A pesar de los avances, existe una necesidad de potenciar el diagnóstico y tratamientos oportunos.

Diagnóstico da tuberculose: desempenho do primeiro serviço de saúde procurado em São José do Rio Preto, São Paulo, Brasil / Tuberculosis diagnosis and performance assessment of the first health service used by patients in São José do Rio Preto, São Paulo State, Brazil / Diagnóstico de la tuberculosis: desempeño del primer servicio de salud solicitado en São José do Rio Preto, São Paulo, Brasil

This cross-sectional study aimed to analyze the first health service to which patients turned for tuberculosis diagnosis in São José do Rio Preto, São Paulo, Brazil, 2009. Eighty-one patients in treatment were interviewed with a questionnaire based on the Primary Care Assessment Tool adapted to TB care and used as a reference for health services performance (structure and process). Data analysis used descriptive and multiple correspondence techniques. Nearly half of the patients initially came to emergency care departments (49.4%), and most TB diagnoses were made in hospitals (39.5%) and primary care services (30.9%). Specialized services were associated with the best diagnostic performance, as opposed to emergency departments, with the worst performance. Primary care services were associated with intermediate performance and weaknesses in infrastructure. The reach of effective detection of TB cases in the portals of entry into the health system involves enhanced diagnostic suspicion, thus emphasizing the need for investments in the management of human resources training for the identification of individuals with respiratory symptoms.

Estudo transversal com objetivo de analisar o desempenho do primeiro serviço de saúde procurado para o diagnóstico da TB pulmonar em São José do Rio Preto, São Paulo, Brasil, em 2009. Foram entrevistados 81 doentes em tratamento. Adotou-se um questionário baseado no Primary Care Assessment Tool, adaptado para atenção à TB, e o referencial de avaliação dos serviços de saúde (estrutura e processo). Os dados foram analisados mediante técnicas descritivas e análise de correspondência múltipla. O principal serviço procurado foi o Pronto Atendimento (UPA) (49,4%) e o que mais diagnosticou os casos de TB foi o hospital (39,5%) e a atenção básica (30,9%). Os serviços especializados apresentaram associação com o melhor desempenho no diagnóstico e a UPA com o pior. A atenção básica associou-se com desempenho intermediário e fragilidades na estrutura. O alcance de uma detecção eficaz dos casos de TB nas principais portas de entrada perpassa pela melhoria na suspeição, reforçando a necessidade de investimentos da gestão na capacitação dos recursos humanos para a identificação dos sintomáticos respiratórios.

Estudio transversal con el objetivo de analizar el desempeño del primer servicio de salud solicitado para el diagnóstico de la TB pulmonar en São José do Rio Preto, São Paulo, Brasil, en 2009. Se entrevistaron a 81 enfermos en tratamiento. Se adoptó un cuestionario basado en el Primary Care Assessment Tool, adaptado para atención a la TB, y el referencial de evaluación de los servicios de salud (estructura y proceso). Los datos se analizaron mediante técnicas descriptivas y análisis de correspondencia múltiple. El principal servicio solicitado fueron las urgencias (Pronto Atendimento-UPA) en un 49,4% y el que más diagnosticó los casos de TB fue el hospital (39,5%) y la atención primaria (30,9%). Los servicios especializados presentaron una asociación con el mejor desempeño en el diagnóstico y la UPA con el peor. La atención básica se asoció con un desempeño intermedio y puntos débiles en la estructura. El alcance de una detección eficaz de los casos de TB, en las principales vías de acceso a los servicios sanitarios, pasa por la mejoría en la capacidad de inferencia de los síntomas, reforzando la necesidad de inversiones base en la capacitación de recursos humanos para la identificación de la sintomatología respiratoria.

Atraso na procura pelo primeiro atendimento para o diagnóstico da tuberculose / Delay in seeking initial care for tuberculosis diagnosis / Demora en la búsqueda de la primera consulta para el diagnóstico de la tuberculosis

Estudo descritivo que objetivou analisar o tempo decorrido entre a percepção dos sintomas da tuberculose (TB) e a primeira busca por serviço de saúde segundo características dos doentes com TB em São José do Rio Preto - SP. Entrevistaram-se 97 doentes com TB utilizando instrumento estruturado. Identificou-se atraso do doente pela mediana do tempo entre a percepção dos sintomas e busca por atendimento (> 15 dias). Calculou-se a razão de prevalência para identificar variáveis relacionadas ao atraso. Houve atraso entre: doentes do sexo masculino, com 18 a 29 e 50 a 59 anos, baixa escolaridade, maior renda familiar, casos pulmonares, não coinfectados com HIV, sintomas fracos, consumidores de bebidas alcoólicas e tabaco, que não realizavam controle preventivo de saúde e procuravam o serviço de saúde mais próximo do domicílio. O reconhecimento do perfil dos usuários na busca por atendimento é primordial para definir estratégias que favoreçam a utilização dos serviços em momento oportuno.

Descriptive study, which aimed to analyze the time between the perception of TB symptoms onset and the first search for health services, according to TB patient characteristics in São José do Rio Preto - SP. 97 TB patients in treatment were interviewed with a structured instrument. The delay was identified by the median time between the perception of TB symptom's onset and the patients demand for care (> 15 days). To identify the variables related to delay the prevalence ratio were calculated. There was a delay seeking care among: male patients, aged 18 to 29 and 50 to 59 years, lower education and higher family income, pulmonary cases without HIV co-infection, presenting milder symptoms, users of alcoholic beverages and tobacco, those who did not perform preventive health control, and who sought health services closer to home. The recognition of users' profiles in the search for care is paramount for defining strategies that favor the use of services in a timely manner.

Estudio descriptivo objetivando analizar el tiempo transcurrido entre la percepción de los primeros síntomas de tuberculosis (TB) y la búsqueda de una primera consulta en servicios de salud, según características de los enfermos de TB en São José de Rio Preto-SP. Fueron entrevistados 97 enfermos de TB, utilizándose instrumento estructurado. Se identificó atraso del enfermo por la mediana de tiempo entre percepción de síntomas y búsqueda de atención (>15 días). Se calculó la razón prevalente para identificar variables relacionadas al atraso. Existió atraso entre: enfermos masculinos, con 18 a 29 y 50 a 59 años, baja escolarización, mayor renta familiar, casos pulmonares, no coinfectados con HIV, síntomas débiles, consumidores de alcohol y tabaco, sin control sanitario preventivo, buscando servicio de salud próximo al domicilio. El reconocimiento del perfil de pacientes buscando atención es primordial para definir estrategias que favorezcan la utilización de los servicios en el momento oportuno.