Manual scoring of periodic limb movements in children: is it still necessary?

OBJECTIVE: Although manual scoring has been classically considered the gold standard to identify periodic leg movements (PLM), it is a very time consuming and expensive process, also subject to variability in interpretation. In the last decades, different authors have observed reasonably good agreement between automated PSG scoring algorithms and manual scoring in adults, according to established criteria. We aim to compare the automatic software analysis of our polysomnogram with the manual staging in children with sleep-disordered breathing. METHODS: We performed a semiautomatic method, in which an experienced technician watched the video recording and removed from the automatic analysis those movements that did not correspond to true candidate leg movement (LM). RESULTS: A total of 131 PSGs were studied; applying the established criteria, 65 children were diagnosed of obstructive sleep apnea, and 66 presented snoring but with no sleep apnea. The mean age was 6.7 years (±1.7) and twenty-five children (19.08 %) had a PLMI >5/h. Statistical differences were found not only for PLMI (manual: 2.20 (0.7, 4.1) vs automatic (6.4 (3.85,9.5); p < 0.001), but for almost of all indexes assessed between the automatic and the manual scoring analysis. The level of concordance was only moderate for PLM index (0.63 [0.51-0.72]); showing that, unlike the articles published in the adult population, automatic analysis is not accurate in children and, manually or semi-automatically analysis as ours need to be done. CONCLUSION: It seems that PLM detection algorithm might work accurately but, the real need would be a true LM detection algorithm.

Obstructive sleep apnea and periodic limb movement in children: is there really an association?

PURPOSE: Periodic limb movements (PLMs) can be found isolated or related to other sleep disorders, as Obstructive Sleep Apnea (OSA). Nevertheless, this association was described before the proposal for modification of the World Association of Sleep Medicine (WASM), which incorporated major changes modifying the definition of respiratory-related leg movements (RRLM) so that the relationship between OSA and PLM could be affected. METHODS: A total of 131 PSG were studied (children with ages from 5 to 12 years old), all referred because of a suspicion of sleep-disordered breathing (65 children were diagnosed of OSA, and 66 presented snoring but no sleep apnea). Leg movements were manually scored according to both 2006 and 2016 WASM/IRLSSG criteria. RESULTS: According to 2006 WASM rules, statistical differences were found, not only for PLM index (p 0.002), but all indexes. Nevertheless, according to new 2016 WASM rules, no statistical differences were found for PLM index (p 0.677), non-REM PLM index (p 0.299), REM PLM index (P 0.511) or PLM with arousal index (p 0.180), between OSA and non-OSA group. Positive correlation between PLM and RRLM have been found with both set of rules. The percentage of children with PLM>5/h is higher when using the prior PLM scoring criteria developed in 2006 (38.93%) versus the updated PLM scoring criteria (19.08%). CONCLUSION: The lack of association when using the new WASM/IRLSSG scoring rules together with the absence of a previous clear etiopathology explanation may suggest that the association between OSA and PLM might be indeed overestimated and that, perhaps, it really did not exist.

Sleep, chronotype, and behavior in adolescents with attention-deficit/hyperactivity disorder.

Sleep problems are highly prevalent in patients with attention-deficit/hyperactivity disorder (ADHD). Although chronotype has been linked to behavioral problems, its specific contribution to ADHD symptoms remains unclear. We assessed the association between chronotype and sleep and behavioral problems in adolescents with ADHD between 12 and 18 years of age using questionnaires (Morningness-Eveningness Scale for Children [MESC], Strengths and Difficulties Questionnaire [SDQ], and Pediatric Sleep Questionnaire [PSQ]). Overall, 84 families (parents and adolescents) were enrolled. The intermediate chronotype was the most common in the study sample. No sex differences were detected in the proportion of morning, intermediate, and evening types. No correlation was found between MESC score and body mass index nor total PSQ score. Regarding SDQ, a significant negative correlation was found between the MESC score and hyperactivity/inattention score. We conclude that adolescents with ADHD tend to have an intermediate chronotype and eveningness is related to hyperactivity/inattention problems.

[Breath-holding spell or epileptic seizure? A description of three girls with epileptic seizures triggered by anoxia]. / ¿Espasmo del sollozo prolongado o crisis epiléptica?: descripción de tres niñas con crisis epilépticas desencadenadas por anoxia.

TITLE: ¿Espasmo del sollozo prolongado o crisis epiléptica?: descripción de tres niñas con crisis epilépticas desencadenadas por anoxia.

Factores ambientales relacionados con la duración de la lactancia: estudio de seguimiento a 1 año / Environmental factors related with breastfeeding duration: a one year follow-up study

Objetivo: Estudiar los factores protectores y de riesgo relacionados con la duración de la lactancia materna completa (LMC) y total (LMT) en la Región de Murcia. Material y métodos: Estudio de seguimiento desde el nacimiento hasta el año de vida de 327 recién nacidos y sus familias entre 2009 y 2010. Estudio descriptivo, de supervivencia de la lactancia y regresión de Cox. Resultados: La duración media de la LMC fue de 82 días y la prevalencia a los 6 meses del 15%. La prevalencia de la LMT a los 12 meses fue del 20%. El riesgo relativo (RR) para la LMC a los 6 meses variaba según las diferentes situaciones: madre fumadora (1,79; intervalo de confianza [IC] del 95%: 1,35-2,38), ausencia de «contacto precoz» (1,18; IC del 95%: 1,08-1,28), ingesta de alcohol -al menos una bebida/semana- (1,57; IC del 95%: 1,12-2,21), arrastrar trazas de tóxicos del trabajo a casa -en ropa o zapatos- durante el embarazo (1,43; IC del 95%:1,10-1,87), estudios maternos universitarios (0,48; IC del 95%: 0,33-0,70) y duración de la baja maternal (días) (0,99, IC del 95%: 0,98-0,99). El RR para la LMT a los 12 meses también difería según el tabaquismo materno (cigarros/semana) (1,01; IC del 95%: 1,01-1,02), la duración de las experiencias previas de lactancia materna (semanas) (0,98; IC del 95%: 0,97-0,99) y el tiempo de baja maternal (días) (0,99; IC del 95%: 0,98-0,99). Conclusiones: Los programas enfocados a conseguir una lactancia materna prolongada deberían contemplar un abordaje integral que ayude a crear ambientes más saludables desde la etapa periconcepcional, que incluya eliminar la exposición a drogas legales e ilegales, disminuir la contaminación química del trabajo hacia el hogar, fortalecer el contacto precoz en el paritorio, dedicar más recursos a las mujeres con menos estudios y contemplar mecanismos legales que prolonguen la baja por maternidad (AU)

Objective: To study the risk and protective factors related for the length of breastfeeding and full breastfeeding (FB) in the Region of Murcia, Spain. Methods: Follow-up study from birth until the first year of 327 newborns and their families between 2009 and 2010. We present the descriptive study, survival analysis of breastfeeding and Cox regression model. Results: The median duration of FB was 82 days and 6 months with a prevalence of 15%. The prevalence of breastfeeding at 12 months was 20%. Relative risk (RR) for FB at 6 months: mother smoking (1.79; 95%CI: 1.35-2.38), absence of 'early skin-to-skin contact' -after the first hour- (1.18; 95%CI: 1.08-1.28), alcohol intake (at least one drink/week) (1.57; 95%CI: 1.12-2.21), take-homes exposures (chemicals from the work can come home on clothing and shoes) during pregnancy (1.43; 95%CI: 1.10-1.87), maternal university studies (0.48; 95%CI: 0.33-0.70) and maternity leave length (days) (0.99; 95%CI: 0.98-0.99). The RR for breastfeeding at 12 months: maternal smoking (cigarettes/wk) (1.01; 95%CI: 1.01-1.02), duration of previous breastfeeding experiences (weeks) (0.98; 95%CI: 0.97-0.99) and maternity leave length (days) (0.99; 95%CI: 0.98-0.99). Conclusions: A comprehensive approach that helps create healthier environments from the periconcepcional stage must be considered in the development of programs focused on achieving sustained breastfeeding. Factors to consider in program development include: the elimination of exposure to legal and illegal drugs, reduction of take-homes (para-occupational) exposures, expedite early mother-newborn contact in the delivery room, devote more resources to less educated women, and contemplate legal reforms to extend maternity leave (AU)

[Complex febrile crises: should we change the way we act?]. / Crisis febriles complejas: debemos cambiar nuestro modo de actuacion?

INTRODUCTION: Febrile seizures are one of the most frequent reasons why patients visit the healthcare specialist. Up until now, patients with complex febrile seizures (CFS) have been hospitalised, bearing in mind the higher percentages of epilepsy and acute complications that were classically reported. Today there are studies that back the idea of being less invasive in the management of these patients. AIMS. To describe the characteristics of patients hospitalised due to CFS and to propose a new protocol to be followed in dealing with such cases. PATIENTS AND METHODS: The medical records of patients hospitalised because of CFS (January 2010-December 2013) were analysed retrospectively. Epidemiological and clinical data are presented, together with information from complementary tests and about development. RESULTS: CFS account for 4.2% of all neuropaediatric cases of admittance to hospital in (67 patients). Mean age at the time of the event: 25 months. A pathological family history existed in 47% of cases, and 31% had a previous personal history of febrile seizures. The CFS lasted less than five minutes in 54% of patients; there were also recurrences, most of them with a total of two crises and during the first day (CFS due to recurrence are the most frequent). None of the complementary tests that were carried out were of any use as a diagnostic aid during the acute phase. During their follow-up, five patients presented complications. Patients with a family history of febrile seizures presented a higher risk of epilepsy or recurrence (p = 0.02), with no significant differences as regards age, number of seizures, febrile interval, epileptic status or type of CFS. CONCLUSIONS: The CFS are not associated with greater acute complications, and the complementary examinations do not allow high-risk patients to be distinguished at an early stage. Hospitalising them could be avoided in the absence of other clinical signs and symptoms, and thus be limited to selected cases.

TITLE: Crisis febriles complejas: debemos cambiar nuestro modo de actuacion?Introduccion. Las convulsiones febriles son una de las causas mas frecuentes de consulta. Hasta ahora, los pacientes con convulsiones febriles complejas (CFC) deben ingresar, dado el mayor porcentaje de epilepsia y complicaciones agudas descrito clasicamente. En la actualidad hay estudios que apoyan ser menos invasivos en el abordaje de estos pacientes. Objetivo. Describir las caracteristicas de los pacientes ingresados por CFC y proponer un nuevo protocolo de actuacion. Pacientes y metodos. Analisis retrospectivo de historias clinicas de ingresados por CFC (enero de 2010-diciembre de 2013). Se ofrecen datos epidemiologicos, clinicos, pruebas complementarias y evolucion. Resultados. Las CFC suponian un 4,2% de los ingresos de neuropediatria (n = 67). Edad media al evento: 25 meses. El 47% tenia antecedentes familiares patologicos, y el 31%, antecedentes personales de convulsion febril previa. En el 54% de los pacientes, la CFC duro menos de cinco minutos; hubo recurrencia, la mayoria con un total de dos crisis y durante el primer dia (las CFC por recurrencia son las mas frecuentes). De las pruebas complementarias realizadas, ninguna de ellas sirvio como apoyo diagnostico en el momento agudo. Durante su seguimiento, cinco pacientes presentaron complicaciones. Los pacientes con antecedentes familiares de convulsiones febriles presentan mayor riesgo de epilepsia o recurrencia (p = 0,02), sin diferencias significativas respecto a la edad, numero de crisis, intervalo de fiebre, estado epileptico o tipo de CFC. Conclusiones. Las CFC no asocian mayores complicaciones agudas; las exploraciones complementarias no permiten discriminar precozmente a los pacientes de riesgo. Su ingreso podria evitarse en ausencia de otros signos clinicos y limitarse a casos seleccionados.

Actitudes, creencias y conocimientos de los pediatras sobre salud medioambiental en Murcia / Pediatrician attitudes, beliefs and knowledge about environmental health in Murcia, Spain

Objetivo: Estudiar las actitudes, las creencias y los conocimientos sobre salud medioambiental pediátrica (SMAP) de los pediatras de la Región de Murcia (RM). Método: Encuesta autocumplimentada, basada en los conocimientos teórico-prácticos sobre SMAP, enviada por correo postal en 2007 a los 293 pediatras que trabajan en la RM. Resultados: Respondieron 164 (56%). El 70% trabaja en atención primaria. El 5% pertenece a alguna organización no gubernamental medioambiental. Según los pediatras, los factores que más afectan a la salud infantil (sobre una puntuación máxima de 10) son: contaminantes del aire interior-tabaco (7,78), lesiones/accidentes (6,64) y contaminación del aire exterior (5,13). El 45% no registra información ambiental en las historias clínicas. Las consultas más frecuentes de los padres (de 1 a 4) son sobre lesiones y accidentes (2,16), radiación ultravioleta (2,06) y contaminación del agua de bebida (2,05). Las enfermedades respiratorias son las más relacionadas con la salud medioambiental. Conclusiones: Se debería asegurar que el contenido de la SMAP sea obligatorio en la enseñanza y la preparación de los futuros pediatras (pregrado, posgrado, formación continuada). Este trabajo podría ayudar a evaluar las necesidades y planificarlas acciones formativas en SMAP(AU)

Objective: To study pediatrician attitudes, beliefs and knowledge about pediatric environmental health (PEH) in the region of Murcia, Spain. Method: Were mailed a self administered survey based on theoretical and practical knowledge about issues related to PEH of 293 paediatricians working in the Region of Murcia. Results: The overall response rate was 56%. About 70% of respondents worked in Primary Care and 5% belonged to anon-governmental organization (NGO). Pediatricians stated that the factors most affecting the health of children (maximum score 10) were: indoor air pollutants (7.78) injuries and accidents (6.64), and outdoor air pollution (5.13). 45% did not systematically record information about the environments in the clinical registry. The most frequently asked questions by parents were (maximum score 4) related to: injuries and accidents (2.16), ultraviolet radiation (2.06) and contamination of drinking water (2.05). Pediatricians considered respiratory diseases to be most strongly related to the environment. Conclusions: Pediatric associations and institutions should include an EH syllabus in the curriculum of pregraduate and graduate students as well as in the continuing education of paediatricians. This work would help needs assessment and planning the training in PEH(AU)