Evaluating the influence of sleep quality and quantity on glycemic control in adults with type 1 diabetes.

Background: Sleep quality disturbances are frequent in adults with type 1 diabetes. However, the possible influence of sleep problems on glycemic variability has yet to be studied in depth. This study aims to assess the influence of sleep quality on glycemic control. Materials and methods: An observational study of 25 adults with type 1 diabetes, with simultaneous recording, for 14 days, of continuous glucose monitoring (Abbott FreeStyle Libre system) and a sleep study by wrist actigraphy (Fitbit Ionic device). The study analyzes, using artificial intelligence techniques, the relationship between the quality and structure of sleep with time in normo-, hypo-, and hyperglycemia ranges and with glycemic variability. The patients were also studied as a group, comparing patients with good and poor sleep quality. Results: A total of 243 days/nights were analyzed, of which 77% (n = 189) were categorized as poor quality and 33% (n = 54) as good quality. Linear regression methods were used to find a correlation (r =0.8) between the variability of sleep efficiency and the variability of mean blood glucose. With clustering techniques, patients were grouped according to their sleep structure (characterizing this structure by the number of transitions between the different sleep phases). These clusters showed a relationship between time in range and sleep structure. Conclusions: This study suggests that poor sleep quality is associated with lower time in range and greater glycemic variability, so improving sleep quality in patients with type 1 diabetes could improve their glycemic control.

Identification of blood glucose patterns in patients with type 1 diabetes using continuous glucose monitoring and clustering technique.

OBJECTIVE: To show that statistical techniques allow for obtaining a reduced number of four-hour glucose profiles that can identify any glucose behavior in patients with type 1 diabetes mellitus. PATIENTS AND METHODS: A retrospective study of 10 patients with type 1 diabetes mellitus was conducted using data collected by continuous glucose monitoring. A data mining technique based on decision trees called CHAID (Chi-square Automatic Interaction Detection) was used to classify glucose profiles into groups using two decision criteria. These were 1, the seven days of the week and 2, different time slots, the day being divided into six sections of four hours each. Clustering was performed according to the glucose levels recorded using the statistically significant differences found. RESULTS: Significant differences (P-value <.05) and dependencies were seen between the glucose profiles classified depending on the independent variables 'day of the week' and 'time slot'. The relationships found were different for each patient, showing the need for individualized studies. CONCLUSIONS: The results obtained will facilitate mathematical modeling of glucose, and can be used to develop an individualized classifier for each patient that categorizes glucose profiles based on the day of the week and time slot variables. Using this classifier, it will be possible to predict the glucose levels of the patient knowing on which day of the week and in which time slot he/she is, leading to more precise models. Healthcare professionals will also be able to improve patient habits and therapies.

Identification of blood glucose patterns in patients with type1 diabetes using continuous glucose monitoring and clustering techniques. / Identificación de patrones de glucemia en pacientes con diabetes tipo1 mediante monitorización continua de glucosa y técnicas de clusterización.

OBJECTIVE: To show that statistical techniques allow for obtaining a reduced number of four-hour glucose profiles that can identify any glucose behavior in patients with type1 diabetes mellitus. MATERIAL AND METHODS: A retrospective study of 10 patients with type1 diabetes mellitus was conducted using data collected by continuous glucose monitoring. A data mining technique based on decision trees called CHAID (Chi-square Automatic Interaction Detection) was used to classify glucose profiles into groups using two decision criteria. These were: 1, the seven days of the week, and 2, different time slots, the day being divided into six sections of four hours each. Clustering was performed according to the glucose levels recorded using the statistically significant differences found. RESULTS: Significant differences (P<.05) and dependencies were seen between the glucose profiles classified depending on the independent variables 'day of the week' and 'time slot'. The relationships found were different for each patient, showing the need for individualized studies. CONCLUSIONS: The results obtained will facilitate mathematical modeling of glucose, and can be used to develop an individualized classifier for each patient that categorizes glucose profiles based on the day of the week and time slot variables. Using this classifier, it will be possible to predict the glucose levels of the patient knowing on which day of the week and in which time slot he/she is, leading to more precise models. Healthcare professionals will also be able to improve patient habits and therapies.

Recomendaciones clínicas para la práctica del deporte en pacientes con diabetes mellitus (Guía RECORD). Grupo de Trabajo de Diabetes Mellitus de la Sociedad Española de Endocrinología y Nutrición (SEEN) / Clinical recommendations for sport practice in diabetic patients (RECORD Guide). Diabetes Mellitus Working Group of the Spanish Society of Endocrinology and Nutrition (SEEN)

La práctica de deporte con un nivel de exigencia alto es cada vez más habitual en pacientes con diabetes mellitus (DM). Esta situación aconseja realizar tanto una valoración previa como una amplia serie de modificaciones en el tratamiento, escasamente referidas en la literatura médica habitual. Objetivo: Elaborar una guía clínica que oriente sobre la actitud médica a seguir ante un paciente con DM que realiza deporte de forma habitual. Métodos: Un grupo de expertos del Grupo de Trabajo de DM de la Sociedad Española de Endocrinología y Nutrición (SEEN) ha revisado la literatura médica relevante en cada uno de los apartados. En base a esta revisión, y con los datos aportados por la experiencia de una serie de deportistas con DM, se han consensuado una serie de recomendaciones dentro de cada apartado. Tras la formulación de las recomendaciones, estas se han discutido conjuntamente por el Grupo de Trabajo y por representantes de la SEEN. Conclusión: La guía ofrece unas pautas que abarcan desde la valoración previa a la práctica deportiva en paciente con DM, como a la actuación durante y después del deporte, pasando por aspectos como la repercusión del deporte en el control de la DM, pautas de entrenamiento o situaciones de especial riesgo

Sporting activity is becoming a common practice in patients with diabetes mellitus (DM). This situation requires both a preliminary medical assessment and a wide range of changes in treatment which have scarcely been addressed in medical literature. Objective: To prepare a clinical guideline on the medical approach to patients with diabetes who practice sport regularly. Methods: An expert panel from the Diabetes Mellitus Working Group of the Spanish Society of Endocrinology and Nutrition (SEEN) reviewed the most relevant literature in each of the sections. Based both on this review and on data from the experience of a number of athletes with DM, a number of recommendations were agreed within each section. Finally, the Working Group and representatives of the SEEN jointly discussed all these recommendations. Conclusion: The guideline provides recommendations ranging from medical assessment before patients with DM start to practice sport to actions during and after physical activity. Recommendations are also given on aspects such as the impact of sport on blood glucose control, training schemes, or special risk situations

[Clinical recommendations for sport practice in diabetic patients (RECORD Guide). Diabetes Mellitus Working Group of the Spanish Society of Endocrinology and Nutrition (SEEN)]. / Recomendaciones clínicas para la práctica del deporte en pacientes con diabetes mellitus (Guía RECORD). Grupo de Trabajo de Diabetes Mellitus de la Sociedad Española de Endocrinología y Nutrición (SEEN).

UNLABELLED: Sporting activity is becoming a common practice in patients with diabetes mellitus (DM). This situation requires both a preliminary medical assessment and a wide range of changes in treatment which have scarcely been addressed in medical literature. OBJECTIVE: To prepare a clinical guideline on the medical approach to patients with diabetes who practice sport regularly. METHODS: An expert panel from the Diabetes Mellitus Working Group of the Spanish Society of Endocrinology and Nutrition (SEEN) reviewed the most relevant literature in each of the sections. Based both on this review and on data from the experience of a number of athletes with DM, a number of recommendations were agreed within each section. Finally, the Working Group and representatives of the SEEN jointly discussed all these recommendations. CONCLUSION: The guideline provides recommendations ranging from medical assessment before patients with DM start to practice sport to actions during and after physical activity. Recommendations are also given on aspects such as the impact of sport on blood glucose control, training schemes, or special risk situations.

Estado actual de los sistemas de infusión subcutánea continua de insulina y monitorización continua de glucosa en la Comunidad de Madrid / Current status of continuous subcutaneous insulin infusion and continuous glucose monitoring systems in the Community of Madrid

OBJETIVO: Analizar la información disponible sobre el estado de los sistemas de infusión subcutánea continua de insulina (ISCI) y de monitorización continua de glucosa (MCG) en la red pública sanitaria de la Comunidad Autónoma de Madrid (CAM). MATERIAL Y MÉTODOS: Se remitió una encuesta a los 28 servicios de endocrinología de los hospitales públicos de la CAM con 31 preguntas sobre los sistemas ISCI y MCG, que incluían registros de pacientes y aspectos asistenciales, administrativos y logísticos. Entre marzo y mayo de 2014 se recibieron respuestas de los centros y se recabó la información de los 20 servicios que realizaban este tipo de procedimientos en nuestra comunidad. Los datos sobre pacientes pediátricos se recibieron mayoritariamente a través de los servicios de adultos, con la excepción de 2 servicios de pediatría de los que la información se recibió directamente. RESULTADOS: En la CAM hay contabilizados un total de 1.256 sistemas ISCI en la población diabética. Los usuarios son mayoritariamente adultos (1.089 pacientes), mientras que 167 corresponden a pacientes pediátricos. Durante 2013 se instauraron 151 nuevos tratamientos (12% del total) mientras que se retiraron un total de 14 bombas. La disponibilidad de recursos asistenciales y la proporción de facultativos de plantilla encargados de estos tratamientos son muy desiguales entre distintos centros. Un 85% de los hospitales incluye entre sus prestaciones sistemas MCG retrospectivos, y un 40% los utiliza habitualmente al inicio de los tratamientos ISCI. Trece centros (65%) utilizan MCG a tiempo real (MCG-TR) a largo plazo en casos seleccionados, contabilizándose un registro acumulado de 67 pacientes. CONCLUSIONES: La implantación de las tecnologías en diabetes en la CAM es desigual en los distintos centros madrileños, y continúa siendo inferior a otros países de nuestro entorno, aunque parece observarse una discreta tendencia a recortar esas diferencias

OBJECTIVE: To analyze the available information about continuous subcutaneous insulin infusion (CSII) and continuous glucose monitoring (CGM) systems in the public health care system of the Community of Madrid. MATERIAL AND METHODS: A survey consisting of 31 items was sent to the 28 endocrinology department of the Madrid public hospitals. Items focused on CSII and CGM and included patients' registrations, as well as data regarding healthcare, administrative, and logistic aspects. Responses from a total of 20 hospitals where these procedures are used were received from March 2013 to May 2014. Data about pediatric patients were obtained from adult endocrinology departments, except for two hospitals which directly reported the information. RESULTS: A total of 1256 CSII pumps were recorded in the Madrid region, of which 1089 were used by adults, and the remaining 167 by pediatric patients. During 2013, 151 new CSII systems were implanted (12% of the total), while 14 pumps were withdrawn. Availability of human resources (medical assistance) and the number of staff practitioners experienced in management of these systems widely varied between hospitals. Eighty-five percent of hospitals used retrospective CGM systems, and 40% routinely placed them before starting an insulin pump. Thirteen hospitals (65%) used long-term, real-time CGM systems in selected cases (a total of 67 patients). CONCLUSIONS: Use of these technologies in diabetes is unequal between public health care hospitals in Madrid, and is still significantly lower as compared to other countries with similar incomes. However, there appears to be a trend to an increase in their use

[Current status of continuous subcutaneous insulin infusion and continuous glucose monitoring systems in the Community of Madrid]. / Estado actual de los sistemas de infusión subcutánea continua de insulina y monitorización continua de glucosa en la Comunidad de Madrid.

OBJECTIVE: To analyze the available information about continuous subcutaneous insulin infusion (CSII) and continuous glucose monitoring (CGM) systems in the public health care system of the Community of Madrid. MATERIAL AND METHODS: A survey consisting of 31 items was sent to the 28 endocrinology department of the Madrid public hospitals. Items focused on CSII and CGM and included patients' registrations, as well as data regarding healthcare, administrative, and logistic aspects. Responses from a total of 20 hospitals where these procedures are used were received from March 2013 to May 2014. Data about pediatric patients were obtained from adult endocrinology departments, except for two hospitals which directly reported the information. RESULTS: A total of 1256 CSII pumps were recorded in the Madrid region, of which 1089 were used by adults, and the remaining 167 by pediatric patients. During 2013, 151 new CSII systems were implanted (12% of the total), while 14 pumps were withdrawn. Availability of human resources (medical assistance) and the number of staff practitioners experienced in management of these systems widely varied between hospitals. Eighty-five percent of hospitals used retrospective CGM systems, and 40% routinely placed them before starting an insulin pump. Thirteen hospitals (65%) used long-term, real-time CGM systems in selected cases (a total of 67 patients). CONCLUSIONS: Use of these technologies in diabetes is unequal between public health care hospitals in Madrid, and is still significantly lower as compared to other countries with similar incomes. However, there appears to be a trend to an increase in their use.

Documento de posicionamiento: evaluación y manejo de la hipoglucemia en el paciente concon diabetes mellitus. Grupo de Trabajo de Diabetes Mellitus de la Sociedad Española de Endocrinología y Nutrición / Position statement: Hypoglycemia management in patients with diabetes mellitus. Diabetes Mellitus Working Group of the Spanish Society of Endocrinology and Nutrition

Objetivo Proporcionar unas recomendaciones prácticas para la evaluación y el manejo de la hipoglucemia en pacientes con diabetes mellitus. Participantes Miembros del Grupo de Trabajo de Diabetes Mellitus de la Sociedad Española de Endocrinología y Nutrición (SEEN).Métodos Las recomendaciones se formularon de acuerdo al sistema Grading of Recommendations, Assessment, Development, and Evaluation para establecer tanto la fuerza de las recomendaciones como el grado de evidencia. Se realizó una búsqueda sistemática en MEDLINE (PubMed) de la evidencia disponible para cada tema, y se revisaron artículos escritos en inglés y castellano con fecha de inclusión hasta el 15 de febrero de 2013. Para las recomendaciones acerca del uso de fármacos, se consideraron tratamientos aprobados por la Agencia Europea de Medicamentos con esa misma fecha. Tras la formulación de las recomendaciones estas se discutieron conjuntamente por el Grupo de trabajo. Conclusiones El documento establece unas recomendaciones prácticas basadas en la evidencia acerca de la evaluación y manejo de la hipoglucemia en pacientes con diabetes mellitus (AU)

Objective To provide practical recommendations for evaluation and management of hypoglycemia in patients with diabetes mellitus. Participants Members of the Diabetes Mellitus Working Group of the Spanish Society of Endocrinology and Nutrition. Methods Recommendations were formulated according to the Grading of Recommendations, Assessment, Development, and Evaluation system to describe both the strength of recommendations and the quality of evidence. A systematic search was made in MEDLINE (PubMed). Papers in English and Spanish with publication date before 15 February 2013 were included. For recommendations about drugs only those approved by the European Medicines Agency were included. After formulation of recommendations, they were discussed by the Working Group. Conclusions The document provides evidence-based practical recommendations for evaluation and management of hypoglycemia in patients with diabetes mellitus (AU)

Position statement: hypoglycemia management in patients with diabetes mellitus. Diabetes Mellitus Working Group of the Spanish Society of Endocrinology and Nutrition.

OBJECTIVE: To provide practical recommendations for evaluation and management of hypoglycemia in patients with diabetes mellitus. PARTICIPANTS: Members of the Diabetes Mellitus Working Group of the Spanish Society of Endocrinology and Nutrition. METHODS: Recommendations were formulated according to the Grading of Recommendations, Assessment, Development, and Evaluation system to describe both the strength of recommendations and the quality of evidence. A systematic search was made in MEDLINE (PubMed). Papers in English and Spanish with publication date before 15 February 2013 were included. For recommendations about drugs only those approved by the European Medicines Agency were included. After formulation of recommendations, they were discussed by the Working Group. CONCLUSIONS: The document provides evidence-based practical recommendations for evaluation and management of hypoglycemia in patients with diabetes mellitus.

Sobre el zorro y las uvas II. Posibles causas de la infrautilización de la infusión subcutánea continua de insulina / The fox and the grapes II. Possible causes of the under-use of continuous subcutaneous insulin infusion

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Riesgos y beneficios del tratamiento de la hiperglucemia en el paciente hospitalizado no crítico / Risk and benefits of hyperglycemia treatment in the non-critical hospitalized patient

La prevalencia de hiperglucemia en los pacientes hospitalizados no críticos es alta, presentándose hasta en un tercio de los pacientes no diagnosticados previamente de diabetes. La hiperglucemia aumenta la morbimortalidad intrahospitalaria, siendo el impacto mayor en los pacientes no diabéticos conocidos. El beneficio del tratamiento intensivo de la hiperglucemia en pacientes hospitalizados no críticos está poco establecido, el único beneficio demostrado es la disminución del riesgo de infecciones. La recomendación actual es mantener una glucemia basal <140 mg/dl y utilizar la terapia bolo-basal para el control de la hiperglucemia durante el ingreso. Aunque el miedo a la hipoglucemia es una de las causas fundamentales del insuficiente control glucémico, la evidencia que tenemos de su repercusión en la morbimortalidad hospitalaria es muy limitada. La hipoglucemia al ingreso y la espontánea sí está asociada a un aumento de mortalidad intrahospitalaria. El mayor riesgo de hipoglucemia iatrogénica se produce al alta hospitalaria, por lo cual se debe planificar esta de forma adecuada

The prevalence of hyperglycemia in non-critical hospitalized patients is high, occurring in up to one third of patients not previously diagnosed with diabetes. Hyperglycemia increases hospital morbidity and mortality, the impact being greater in patients not known to be diabetics. The effect of intensive treatment of hyperglycemia in non-critical hospitalized patients is unclear, the only proven benefit is the reduction in the risk of infection. The current recommendation is to keep blood glucose levels <140mg/dL, and to use the basal-bolus insulin therapy for the glycemic control during hospitalization. Although the fear of inducing hypoglycemia is one of the main causes of poor glycemic control, the evidence of its impact on hospital morbidity and mortality is very limited. Only spontaneous hypoglycemia at admission and is associated with increased hospital mortality. There is an increased risk of iatrogenic hypoglycemia at discharge, so this should be carefully monitored