ABSTRACT
Psychosomatic medicine explores the psychological, behavioral, and social elements that influence people's health and quality of life. This discipline develops skills and knowledge used in the evalua tion and management of psychosocial elements interfering in the process of illness and healing. The Child and Adolescent Consultation-Liaison Psychiatry (CACLP) is a discipline that has been empi rically installed in order to favor adherence to treatments and recovery of children and teenagers du ring the process of illness. There is a need for developing this discipline in Chile, but so far there are limited national and international records and literature dedicated to it. The objective of this article is to update the concepts of structure and describe how a CACLP unit in a high complexity teaching hospital works in general, discussing the clinical challenges involved in these issues.
Subject(s)
Adolescent Psychiatry/organization & administration , Child Psychiatry/organization & administration , Hospitals, University/organization & administration , Mental Disorders/diagnosis , Mental Disorders/therapy , Psychosomatic Medicine/organization & administration , Referral and Consultation/organization & administration , Adolescent , Adolescent Psychiatry/methods , Child , Child Psychiatry/methods , Child, Preschool , Chile , Female , Humans , Infant , Infant, Newborn , Male , Psychosomatic Medicine/methodsABSTRACT
INTRODUCTION: Screening for Autism Spectrum Disorders (ASD) using the Modified Checklist for Autism in Toddlers, Revised with Follow-up (M-CHAT-R/F) increases early detection, allowing early interventions and improving prognosis. This tool is part of the management in case of suspected ASD in several clinical guidelines. The objective of this article was to conduct the concurrent and discrimi nant validation and the reliability analysis of M-CHAT-R/F in the Chilean population. PATIENTS AND METHOD: This is the second stage of the cross-cultural adaptation of cross-sectional design. M-CHAT- R/F was applied to a sample of 20 children with suspected ASD and 100 randomly selected healthy control children, aged between 16-30 months. Autism Diagnostic Observation Schedule (ADOS-2), considered as reference, was applied to the 20 patients of the clinical sample, to 20 children of the healthy control sample and to those cases of the healthy control sample with M-CHAT-R/F positive. Cronbach alpha was calculated, as well as M-CHAT-R/F and ADOS-2 correlation, sensitivity, and specificity analyses. RESULTS: In the healthy sample, M-CHAT-R/F was positive in two patients, with one of them positive and the other one negative for ASD with ADOS-2 test. In the clinical sample, M- CHAT-R/F was positive in all cases, three of them were negative in the ADOS-2 test. The Alfa relia bility of M-CHART-R/T was 0,889, the discriminant sensitivity and specificity were 100% and 98%, and the concurrent ones were 100% and 87.5% respectively. CONCLUSIONS: The Chilean M-CHAT- R/F version was reliable, sensitive and specific, similar to the original test, which opens the possibility for its use in clinical samples and for research. Validating M-CHAT-R/F is an ongoing process which must be further developed.
Subject(s)
Autism Spectrum Disorder/diagnosis , Mass Screening/methods , Case-Control Studies , Child, Preschool , Chile , Cross-Sectional Studies , Early Diagnosis , Female , Humans , Infant , Male , Reproducibility of Results , Sensitivity and SpecificityABSTRACT
INTRODUCCIÓN: El tamizaje de los Trastornos del Espectro Autista (TEA) mediante el Modified Chec klist for Autism in Toddlers - Revised with Follow Up (M-CHAT-R/F) aumenta la detección precoz, posibilitando intervenciones tempranas y mejorando el pronóstico. Este instrumento es parte del algoritmo de manejo ante la sospecha de TEA en diversas guías clínicas. El objetivo fue realizar la validación concurrente, discriminante y el análisis de confiabilidad del M-CHAT-R/F en una pobla ción chilena. PACIENTES Y MÉTODO: Esta es la segunda etapa de la adaptación transcultural, de diseño transversal. Se aplicó M-CHAT-R/F a una muestra de 20 niños con sospecha de TEA y 100 niños de control sano seleccionados al azar, de 16-30 meses de edad. Se aplicó Autism Diagnostic Observation Schedule (ADOS-2), considerado como referencia, a los 20 pacientes de la muestra clínica, a 20 niños de la muestra de control sano y a aquellos casos de la muestra de control sano con M-CHAT-R/F po sitivo. Se calculó alfa de Cronbach, análisis de correlación de M-CHAT-R/F y ADOS-2 y sensibilidad y especificidad. RESULTADOS: En el grupo de control sano, M-CHAT-R/F resultó alterado en 2 pacien tes, siendo uno positivo y otro negativo para TEA con ADOS-2. En muestra clínica el M-CHAT-R/F fue positivo en todos, con test de ADOS-2 negativo en 3 casos. La confiabilidad Alfa del M-CHAT- R/F fue =0,889, la sensibilidad y especificidad discriminante de 100 y 98% y la concurrente 100% y 87,5% respectivamente. CONCLUSIÓN: M-CHAT-R/F en su versión chilena resultó fiable, sensible y específico de manera similar al original, lo cual abre la posibilidad de su utilización en población clínica y para investigación. La validación es un proceso continuo que se debe profundizar.
INTRODUCTION: Screening for Autism Spectrum Disorders (ASD) using the Modified Checklist for Autism in Toddlers, Revised with Follow-up (M-CHAT-R/F) increases early detection, allowing early interventions and improving prognosis. This tool is part of the management in case of suspected ASD in several clinical guidelines. The objective of this article was to conduct the concurrent and discrimi nant validation and the reliability analysis of M-CHAT-R/F in the Chilean population. PATIENTS AND METHOD: This is the second stage of the cross-cultural adaptation of cross-sectional design. M-CHAT- R/F was applied to a sample of 20 children with suspected ASD and 100 randomly selected healthy control children, aged between 16-30 months. Autism Diagnostic Observation Schedule (ADOS-2), considered as reference, was applied to the 20 patients of the clinical sample, to 20 children of the healthy control sample and to those cases of the healthy control sample with M-CHAT-R/F positive. Cronbach alpha was calculated, as well as M-CHAT-R/F and ADOS-2 correlation, sensitivity, and specificity analyses. RESULTS: In the healthy sample, M-CHAT-R/F was positive in two patients, with one of them positive and the other one negative for ASD with ADOS-2 test. In the clinical sample, M- CHAT-R/F was positive in all cases, three of them were negative in the ADOS-2 test. The Alfa relia bility of M-CHART-R/T was 0,889, the discriminant sensitivity and specificity were 100% and 98%, and the concurrent ones were 100% and 87.5% respectively. CONCLUSIONS: The Chilean M-CHAT- R/F version was reliable, sensitive and specific, similar to the original test, which opens the possibility for its use in clinical samples and for research. Validating M-CHAT-R/F is an ongoing process which must be further developed.
Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Mass Screening/methods , Autism Spectrum Disorder/diagnosis , Case-Control Studies , Cross-Sectional Studies , Reproducibility of Results , Sensitivity and Specificity , Early DiagnosisSubject(s)
Humans , Male , Female , Infant , Child, Preschool , Psychiatric Status Rating Scales , Autistic Disorder/diagnosis , Culturally Competent Care , ChileSubject(s)
Autistic Disorder/diagnosis , Culturally Competent Care , Psychiatric Status Rating Scales , Child, Preschool , Chile , Female , Humans , Infant , MaleABSTRACT
Enterotoxigenic Escherichia coli (ETEC) is an important cause of diarrhea. Three adhesins (Tia, TibA, EtpA), an iron acquisition system (Irp1, Irp2, and FyuA), a GTPase (LeoA), and an autotransporter (EatA) are ETEC virulence-related proteins that, in contrast to the classical virulence factors (enterotoxins and fimbrial colonization factors) have not heretofore been targets in characterizing isolates from epidemiological studies. Here, we determined the occurrence of these nonclassical virulence genes in 103 ETEC isolates from Chilean children with diarrhea and described their association with O serogroups and classical virulence determinants. Because tia, leoA, irp2, and fyuA are harbored by pathogenicity islands inserted into the selC and asnT tRNA genes (tDNAs), we analyzed the regions flanking these loci. Ten additional tDNAs were also screened to identify hot spots for genetic insertions. Associations between the most frequent serogroups and classical colonization factor (CF)-toxin profiles included O6/LT-STh/CS1-CS3-CS21 (i.e., O6 serogroup, heat-labile [LT] and human heat-stable [STh] enterotoxins, and CFs CS1, -3 and -21), O6/LT-STh/CS2-CS3-CS21, and O104-O127/STh/CFAI-CS21. The eatA and etpA genes were detected in more than 70% of the collection, including diverse serogroups and virulence profiles. Sixteen percent of the ETEC strains were negative for classical and nonclassical adhesins, suggesting the presence of unknown determinants of adhesion. The leuX, thrW, and asnT tDNAs were disrupted in more than 65% of strains, suggesting they are hot spots for the insertion of mobile elements. Sequences similar to integrase genes were identified next to the thrW, asnT, pheV, and selC tDNAs. We propose that the eatA and etpA genes should be included in characterizations of ETEC isolates in future epidemiological studies to determine their prevalence in other geographical regions. Sequencing of tDNA-associated genetic insertions might identify new ETEC virulence determinants.