RESUMO
Abstract Objective: To evaluate the demographics, genotype, and clinical presentation of pediatric patients presenting with distal intestinal obstruction syndrome (DIOS), and factors associated with DIOS recurrence. Methods: Case series of ten patients (median age 13.2 years), followed-up in a reference center, retrospectively assessed. Data analyzed included age, gender, cystic fibrosis genotype, meconium ileus at birth, hydration status, pulmonary exacerbation, Pseudomonas aeruginosa colonization, pancreatic insufficiency (PI), body mass index (BMI) at the episodes, clinical manifestations of DIOS, imaging studies performed, acute management of DIOS, maintenance therapy, and recurrence on follow-up. Results: All patients had two positive sweat chloride tests, and nine of ten also had genotype study. The most common genotype identified was homozygosis for the delta F508 mutation. In seven cases, a previous history of meconium ileus was reported. All patients had pancreatic insufficiency. Diagnosis of DIOS was based on clinical and imaging findings. Of the total number of episodes, 85% were successfully managed with oral osmotic laxatives and/or rectal therapy (glycerin enema or saline irrigation). Recurrence was observed in five of ten patients. Conclusion In this first report of pediatric DIOS in South America, the presence of two risk factors for DIOS occurrence was universal: pancreatic insufficiency and severe genotype. Medical history of meconium ileus at birth was present in most patients, as well as in the subgroup with DIOS recurrence. The diagnosis relied mainly on the clinical presentation and on abdominal imaging. The practices in the management of episodes varied, likely reflecting changes in the management of this syndrome throughout time.
Resumo Objetivo: Avaliar os dados demográficos, o genótipo e o quadro clínico de pacientes pediátricos que apresentam síndrome da obstrução intestinal distal (DIOS) e os fatores associados à recidiva da DIOS. Métodos: Casuística de 10 pacientes (média de 13,2 anos) monitorados em um centro de referência e avaliados de forma retroativa. Os dados analisados incluíram idade, sexo, genótipo da fibrose cística, íleo meconial no nascimento, estado de hidratação, exacerbação pulmonar, colonização por Pseudomonas aeruginosa, insuficiência pancreática (IP), IMC nos episódios, manifestações clínicas da DIOS, estudos de diagnóstico por imagem realizados, manejo agudo da DIOS, terapia de manutenção e recidiva no acompanhamento. Resultados: Todos os pacientes apresentaram dois exames de cloreto no suor positivos e 09/10 também apresentaram estudo do genótipo. O genótipo mais comum identificado foi a homozigose da mutação delta F508. Em sete casos foi mencionado um histórico de íleo meconial. Todos os pacientes apresentaram insuficiência pancreática. O diagnóstico da DIOS teve como base achados clínicos e de imagem; 85% do número total de episódios foram tratados com sucesso com laxantes osmóticos orais e/ou terapia retal (enema de glicerina ou irrigação salina). A recidiva foi observada em 5 de 10 pacientes. Conclusão: Neste primeiro relatório da DIOS pediátrica na América do Sul, a presença de dois fatores de risco na ocorrência da DIOS foi universal: insuficiência pancreática e genótipo associado a doença grave. O histórico de íleo meconial no nascimento esteve presente na maioria dos pacientes, bem como no subgrupo com recidiva da DIOS. O diagnóstico dependeu principalmente do quadro clínico e do diagnóstico por imagem abdominal. As práticas de manejo de episódios variaram, provavelmente refletiram as mudanças no tratamento dessa síndrome ao longo do tempo.
Assuntos
Humanos , Criança , Adolescente , Insuficiência Pancreática Exócrina/diagnóstico , Insuficiência Pancreática Exócrina/etiologia , Insuficiência Pancreática Exócrina/terapia , Fibrose Cística/complicações , Fibrose Cística/diagnóstico , Fibrose Cística/genética , América do Sul , Estudos Retrospectivos , Obstrução Intestinal/diagnóstico , Obstrução Intestinal/etiologia , Obstrução Intestinal/terapiaRESUMO
OBJECTIVE: To evaluate the demographics, genotype, and clinical presentation of pediatric patients presenting with distal intestinal obstruction syndrome (DIOS), and factors associated with DIOS recurrence. METHODS: Case series of ten patients (median age 13.2 years), followed-up in a reference center, retrospectively assessed. Data analyzed included age, gender, cystic fibrosis genotype, meconium ileus at birth, hydration status, pulmonary exacerbation, Pseudomonas aeruginosa colonization, pancreatic insufficiency (PI), body mass index (BMI) at the episodes, clinical manifestations of DIOS, imaging studies performed, acute management of DIOS, maintenance therapy, and recurrence on follow-up. RESULTS: All patients had two positive sweat chloride tests, and nine of ten also had genotype study. The most common genotype identified was homozygosis for the delta F508 mutation. In seven cases, a previous history of meconium ileus was reported. All patients had pancreatic insufficiency. Diagnosis of DIOS was based on clinical and imaging findings. Of the total number of episodes, 85% were successfully managed with oral osmotic laxatives and/or rectal therapy (glycerin enema or saline irrigation). Recurrence was observed in five of ten patients. CONCLUSION: In this first report of pediatric DIOS in South America, the presence of two risk factors for DIOS occurrence was universal: pancreatic insufficiency and severe genotype. Medical history of meconium ileus at birth was present in most patients, as well as in the subgroup with DIOS recurrence. The diagnosis relied mainly on the clinical presentation and on abdominal imaging. The practices in the management of episodes varied, likely reflecting changes in the management of this syndrome throughout time.
Assuntos
Fibrose Cística , Insuficiência Pancreática Exócrina , Obstrução Intestinal , Adolescente , Criança , Fibrose Cística/complicações , Fibrose Cística/diagnóstico , Fibrose Cística/genética , Insuficiência Pancreática Exócrina/diagnóstico , Insuficiência Pancreática Exócrina/etiologia , Insuficiência Pancreática Exócrina/terapia , Humanos , Obstrução Intestinal/diagnóstico , Obstrução Intestinal/etiologia , Obstrução Intestinal/terapia , Estudos Retrospectivos , América do SulRESUMO
INTRODUCTION: Vitamin D acts on the immune system and lung response. Patients with cystic fibrosis (CF) may be deficient in this vitamin. The aims of the study were to evaluate vitamin D levels and severity of lung disease in infants and preschoolers diagnosed with CF, and to compare them to a group of children without pancreatic insufficiency (PI). METHODS: Patients with CF up to 4 years old were included, and compared to an age-matched group of children without diagnosis of CF. CF group had medical records and High Resolution Thorax Computed Tomography (HRCCT) evaluated in order to verify the severity of lung disease. Information on demographic data, sun exposure habits, supplemental vitamin D therapy, and on the season at the time of vitamin D sampling were collected for both groups. RESULTS: This study included 45 patients in the CF group and 102 in the non-CF group, with no differences in age (P = 0.327) between them. There was no association between vitamin D levels and markers of lung disease in the CF group. The non-CF group had lower daily sun exposure (P = 0.034), and lower supplementation than the CF group (P < 0.001). Supplementation and seasonality were the determinant variables for vitamin D levels, which were lower for non-supplemented children and for assessments during fall/winter. CONCLUSION: There was no association between lung disease severity and vitamin D levels in CF group. Supplementation and seasonality were associated to higher vitamin levels.