Effects of CPAP on cardiorespiratory outcomes in patients with obstructive sleep apnea and heart failure: a systematic review / Efectos de la presión positiva continua en las vías aéreas en los resultados cardiorrespiratorios en pacientes con apnea obstructiva del sueño e insuficiencia cardíaca: una revisión sistemática / Efeitos da pressão positiva contínua nas vias aéreas nos desfechos cardiorrespiratórios em pacientes com apneia obstrutiva do sono e insuficiência cardíaca: uma revisão sistemática

ABSTRACT Obstructive sleep apnea (OSA) is a public health problem with a great economic impact. It is estimated that the prevalence of patients with OSA ranges from 4% to 6% of men and 2% to 4% of women in the general population. Strong evidence suggests that both sleep disorders and heart failure (HF) are related. Continuous positive airway pressure (CPAP) is the gold standard non-pharmacological treatment for this population. However, there is still a gap in the literature and its effects in patients with OSA and HF are not entirely clear. This study aimed to evaluate, by randomized clinical trials, the effects of positive pressure on cardiorespiratory function in patients with OSA and HF. Randomized clinical trials were included, with publication in the MEDLINE, PEDro, Cochrane Library, SciELO and PubMed databases and the risk bias was assessed using the PEDro scale. Six articles were included in this study, involving 165 participants. Our findings demonstrate that CPAP in the treatment of OSA in patients with HF promotes an increase in left ventricular ejection fraction, oxygen saturation and a reduction in blood pressure, apnea/hypopnea indices and awakenings from sleep during the night. We conclude that treatment with CPAP promotes an improvement in cardiorespiratory outcomes in patients with OSA and HF, improving the prognosis and reducing the risk of sudden death. However, their data must be cautiously interpreted considering the bias of the studies and their limitations.

RESUMEN La apnea obstructiva del sueño (APS) es un problema de salud pública con gran impacto económico. Se estima que la prevalencia de portadores de AOS es del 4% al 6% en los hombres y del 2% al 4% en las mujeres en la población general. Existe una fuerte evidencia de que tanto los trastornos del sueño como la insuficiencia cardíaca (IC) tienen una asociación entre sí. La presión positiva continua en las vías respiratorias (CPAP) es el tratamiento no farmacológico estándar de oro para esta población. Sin embargo, aún existe un vacío en la literatura y sus efectos en pacientes con AOS e IC no están del todo claros. Ante esto, el objetivo de este estudio es evaluar, mediante ensayos clínicos aleatorizados, los efectos de la CPAP sobre la función cardiorrespiratoria en pacientes con AOS e IC. Se incluyeron seis ensayos clínicos aleatorizados, con publicación en las bases de datos MEDLINE, PEDro, Cochrane Library, SciELO y PubMed, con un total de 165 participantes. El riesgo de sesgo se evaluó mediante la escala PEDro. Nuestros hallazgos demuestran que la CPAP en el tratamiento de la AOS en pacientes con IC promueve un aumento de la fracción de eyección del ventrículo izquierdo y de la saturación de oxígeno, y una reducción de la presión arterial, de los índices de apnea/hipopnea y de los despertares nocturnos. Se concluye que el tratamiento con CPAP promueve una mejora en los resultados cardiorrespiratorios en pacientes con AOS e IC, mejorando el pronóstico y reduciendo el riesgo de muerte súbita. Sin embargo, sus datos deben interpretarse con cautela considerando el sesgo de los estudios y sus limitaciones.

RESUMO A apneia obstrutiva do sono (AOS) é um problema de saúde pública de grande impacto econômico. Estima-se que a prevalência de portadores de AOS seja de 4% a 6% entre os homens e de 2% a 4% entre as mulheres da população em geral. Há fortes evidências de que os distúrbios do sono e a insuficiência cardíaca (IC) estão relacionados. A pressão positiva contínua nas vias aéreas (CPAP) é o tratamento não farmacológico padrão ouro para essa população. No entanto, ainda há uma lacuna na literatura, e seus efeitos em pacientes com AOS e IC não estão plenamente estabelecidos. Assim, o objetivo deste estudo foi avaliar através da revisão de ensaios clínicos randomizados os efeitos da CPAP na função cardiorrespiratória em pacientes com AOS e IC. Foram incluídos seis ensaios clínicos randomizados, publicados nas bases de dados MEDLINE, PEDro, Cochrane Library, SciELO e PubMed, totalizando 165 participantes. O risco de viés foi avaliado através da escala PEDro. Nossos achados demonstraram que a CPAP no tratamento da AOS em pacientes com IC promove um aumento da fração de ejeção do ventrículo esquerdo e da saturação de oxigênio e uma redução da pressão arterial, dos índices de apneia/hipopneia e dos despertares durante a noite. Concluímos que o tratamento com CPAP promove uma melhora nos desfechos cardiorrespiratórios em pacientes com AOS e IC, beneficiando o prognóstico e reduzindo os riscos de morte súbita. Porém, os resultados devem ser interpretados com cautela, considerando o viés dos estudos e suas limitações.

Demoras y adherencia al tratamiento de las apneas del sueño dentro de un sistema de provisión universal en un hospital público / Delays and Adherence to the Treatment of Sleep Apnea within a Universal Provision System in a Public Hospital

Introducción: El tratamiento con presión positiva es uno de los pilares del manejo de las apneas obstructivas del sueño, sin embargo, el acceso a los equipos y la adherencia a su uso no son fáciles de lograr. Objetivo: Evaluar la adherencia de los pacientes del sistema público de salud que reciben equipos de presión continua de forma gratuita para el tratamiento de las apneas obstructivas del sueño. Material y métodos: Se evaluó retrospectivamente a los pacientes con diagnóstico de apnea obstructiva del sueño que recibieron equipos de CPAP entre 2013 y 2018 a través de PAMI, Incluir Salud y Cobertura Porteña de Salud. Resultados: Los pacientes de PAMI fueron de mayor edad y tenían un Epworth más bajo. La demora entre consulta y diagnóstico fue de 1,4 ± 2,4 meses. El tiempo de diagnóstico a provisión del equipo fue de 10,2 ± 9,9 meses. Los pacientes de PAMI recibieron los equipos más rápido (2,7 ± 2,5 meses) y fueron más adherentes a las visitas de control. La adherencia a los controles clínicos el primer año fue del 46 %. Los pacientes de mayor edad, con Epworth más bajo y que usan auto-CPAP tenían una tendencia no significativa a favorecer esta adherencia. La adherencia objetiva medida por tarjeta de memoria o telemonitoreo fue del 40 %. El mayor IMC fue el único factor que la favorecía. Conclusiones: Superando la limitación económica al acceso a los equipos, no cambia la actitud hacia la adherencia y control.

Introduction: Treatment with positive airway pressure is one of the cornerstones in managing obstructive sleep apnea (OSA). However, access to the equipment and ad herence to their use are not easy to achieve. Objective: to evaluate the adherence of patients from the public health system who receive continuous pressure devices free of charge for the treatment of OSA. Materials and methods: Patients diagnosed with OSA who received continuous positive airway pressure (CPAP) devices between 2013 and 2018 through PAMI (Programa de Atención Médica Integral, Medical Services Program) , Incluir Salud, and Cobertura Porteña de Salud were retrospectively evaluated. Results: Patients from PAMI were older and had a lower score in the Epworth scale. The delay between the consultation and the diagnosis was 1.4 ± 2.4 months. The time from the diagnosis until the equipment was provided was 10.2 ± 9.9 months. Patients from PAMI received the equipment faster (2.7 ± 2.5 months) and were more adherent to follow-up visits. Adherence to clinical follow-up visits in the first year was 46%. Older patients with a lower Epworth score and those using AutoCPAP had a non-significant trend favoring this adherence. The objective adherence measured by memory card or telemonitoring was 40%. The higher body mass index (BMI) was the only factor favor ing objective adherence. Conclusions: Overcoming the economic limitation to access the equipment does not change the attitude towards adherence and follow-up.

Perception of neonatology staff regarding the availability of equipment and supplies for the care of patients in need of nCPAP.

BACKGROUND: Respiratory distress syndrome (RDS) is Mexico's second leading cause of neonatal mortality. The 75% reduction in mortality due to RDS has been attributed to the use of nasal continuous positive airway pressure (nCPAP). A survey was conducted to determine the perception of the medical staff regarding the availability of nCPAP equipment and supplies in Mexican hospitals with neonatal intensive care units (NICUs). METHODS: We sent a survey via e-mail to several neonatologists in each state of the country, requesting only one response per hospital. We performed statistical analysis with SPSS software. RESULTS: We received 195 surveys from private (HPri) and public (HPub) hospitals with NICUs nationwide: 100% of HPri and 39% of HPub. More than 75% of the nursing and medical staff had received formal training in nCPAP in 11% of HPri and 5% of HPub. The perceived availability of CPAP equipment was 83.7% vs. 52.1%; nasal cannula supply, 75.5% vs. 36.3%; air/oxygen blender availability, 51.0% vs. 32.9%, in HPri and HPub, respectively. The observed differences were statistically significant. Significant differences were also found among healthcare institutions. CONCLUSIONS: The availability of CPAP equipment and consumables between HPub and HPri is unbalanced and is lower in public institutions. Bubble CPAP is not included essential equipment in the national catalog of instruments and equipment for public hospitals, and its request is complicated. The training of CPAP staff and the availability of bubble CPAP and supplies in public hospitals should be improved.

INTRODUCCIÓN: El síndrome de dificultad respiratoria (SDR) es la segunda causa de mortalidad neonatal en México. La reducción del 75% de la mortalidad por SDR se le ha atribuido al uso de la presión positiva nasal continua de las vías respiratorias (nCPAP). Se realizó una encuesta con el objetivo de conocer la percepción del personal médico acerca de la disponibilidad del equipo e insumos para nCPAP en hospitales de México que cuenten con unidades de cuidados intensivos neonatales (UCIN). MÉTODOS: La encuesta se envió por correo electrónico a varios neonatólogos de cada estado del país y se solicitó una sola respuesta por cada hospital. El análisis estadístico se realizó con el software SPSS. RESULTADOS: Se recibieron 195 encuestas respondidas tanto de hospitales privados (HPri) como públicos (HPub) que cuentan con UCIN a escala nacional: el 100% de HPri y el 39% de HPub. Más del 75% del personal de enfermería y médico recibió una capacitación formal en nCPAP en el 11% de HPri y el 5% de HPub. La percepción de disponibilidad de equipos de presión positiva continua de las vías respiratorias (CPAP) fue del 83.7% vs. el 52.1%; el abasto de cánulas nasales, del 75.5% vs. el 36.3%; la disponibilidad del mezclador aire/oxígeno, del 51.0 % vs. el 32.9%, en HPri y HPub, respectivamente. Las diferencias fueron estadísticamente significativas. También se encontraron diferencias significativas entre las instituciones de salud. CONCLUSIONES: La disponibilidad de equipo y material de consumo para CPAP entre HPub y HPri es desequilibrada, y es menor en las instituciones públicas. El CPAP burbuja no se encuentra incluido en el cuadro básico de equipo médico y se dificulta su solicitud. Debe mejorarse la capacitación del personal en CPAP y la disponibilidad de CPAP burbuja e insumos en los hospitales públicos.

Perception of neonatology staff regarding the availability of equipment and supplies for the care of patients in need of nCPAP / Percepción del personal de neonatología sobre la disponibilidad de equipo e insumos para la atención de pacientes con necesidad de nCPAP

Abstract Background: Respiratory distress syndrome (RDS) is Mexico's second leading cause of neonatal mortality. The 75% reduction in mortality due to RDS has been attributed to the use of nasal continuous positive airway pressure (nCPAP). A survey was conducted to determine the perception of the medical staff regarding the availability of nCPAP equipment and supplies in Mexican hospitals with neonatal intensive care units (NICUs). Methods: We sent a survey via e-mail to several neonatologists in each state of the country, requesting only one response per hospital. We performed statistical analysis with SPSS software. Results: We received 195 surveys from private (HPri) and public (HPub) hospitals with NICUs nationwide: 100% of HPri and 39% of HPub. More than 75% of the nursing and medical staff had received formal training in nCPAP in 11% of HPri and 5% of HPub. The perceived availability of CPAP equipment was 83.7% vs. 52.1%; nasal cannula supply, 75.5% vs. 36.3%; air/oxygen blender availability, 51.0% vs. 32.9%, in HPri and HPub, respectively. The observed differences were statistically significant. Significant differences were also found among healthcare institutions. Conclusions: The availability of CPAP equipment and consumables between HPub and HPri is unbalanced and is lower in public institutions. Bubble CPAP is not included essential equipment in the national catalog of instruments and equipment for public hospitals, and its request is complicated. The training of CPAP staff and the availability of bubble CPAP and supplies in public hospitals should be improved.

Resumen Introducción: El síndrome de dificultad respiratoria (SDR) es la segunda causa de mortalidad neonatal en México. La reducción del 75% de la mortalidad por SDR se le ha atribuido al uso de la presión positiva nasal continua de las vías respiratorias (nCPAP). Se realizó una encuesta con el objetivo de conocer la percepción del personal médico acerca de la disponibilidad del equipo e insumos para nCPAP en hospitales de México que cuenten con unidades de cuidados intensivos neonatales (UCIN). Métodos: La encuesta se envió por correo electrónico a varios neonatólogos de cada estado del país y se solicitó una sola respuesta por cada hospital. El análisis estadístico se realizó con el software SPSS. Resultados: Se recibieron 195 encuestas respondidas tanto de hospitales privados (HPri) como públicos (HPub) que cuentan con UCIN a escala nacional: el 100% de HPri y el 39% de HPub. Más del 75% del personal de enfermería y médico recibió una capacitación formal en nCPAP en el 11% de HPri y el 5% de HPub. La percepción de disponibilidad de equipos de presión positiva continua de las vías respiratorias (CPAP) fue del 83.7% vs. el 52.1%; el abasto de cánulas nasales, del 75.5% vs. el 36.3%; la disponibilidad del mezclador aire/oxígeno, del 51.0 % vs. el 32.9%, en HPri y HPub, respectivamente. Las diferencias fueron estadísticamente significativas. También se encontraron diferencias significativas entre las instituciones de salud. Conclusiones: La disponibilidad de equipo y material de consumo para CPAP entre HPub y HPri es desequilibrada, y es menor en las instituciones públicas. El CPAP burbuja no se encuentra incluido en el cuadro básico de equipo médico y se dificulta su solicitud. Debe mejorarse la capacitación del personal en CPAP y la disponibilidad de CPAP burbuja e insumos en los hospitales públicos.

Continuous Positive Airway Pressure vs. High Flow Nasal Cannula in children with acute severe or moderate bronchiolitis. A systematic review and Meta-analysis.

OBJECTIVE: To compare the safety and effectiveness of Continuous Positive Airway Pressure (CPAP) vs. High Flow Nasal Cannula (HFNC) to prevent therapeutic failure and the need of invasive ventilation in children with acute moderate-severe bronchiolitis. DESIGN: A systematic review and meta-analysis. SETTING: Medline, Embase, Lilacs, Cochrane and gray literature (May 2020) was performed. PARTICIPANTS: Randomized clinical trials patients with moderate to severe bronchiolitis. MAIN VARIABLES: Therapeutic failure, need for invasive ventilation, adverse events, length of PCCU and of hospital stay. INTERVENTION: The quality of the studies was assessed with the Cochrane risk and bias tool. We conducted meta-analysis using fixed effect model and random effects model. RESULTS: Three RCTs were included. Showed less risk of therapeutic failure with CPAP compared with HFNC (RR=0.7; 95%CI 0.5-0.99) developed hours later in patients with CPAP (MD=3.16; 95%CI 1.55-4.77). We did not find differences in other outcomes, such as need of invasive ventilation (RR=0.60; 95%CI 0.25-1.43), apnea (RR=0.40; 95%CI 0.08-1.99), or number of days in the intensive care unit (MD=0.02; 95%CI -0.38 to 0.42), and length of hospitalization (MD=-1.00; 95%IC -2.66 to 0.66). Adverse events (skin lesions) were more common with CPAP (RR 2.47; 95%CI 1.17-5.22). CONCLUSIONS: In moderate/severe bronchiolitis CPAP demonstrated a lower risk of therapeutic failure and a longer time to failure. But more adverse events like nasal injury. There were no differences in other variables.

Continuous Positive Airway Pressure vs. High Flow Nasal Cannula in children with acute severe or moderate bronchiolitis. A systematic review and Meta-analysis / Presión positiva continua en vía aérea (CPAP) vs. Cánula de alto flujo (CAF) en lactantes con bronquiolitis aguda moderada y grave. Revisión sistemática de la literatura y meta-análisis

Objective: To compare the safety and effectiveness of Continuous Positive Airway Pressure (CPAP) vs. High Flow Nasal Cannula (HFNC) to prevent therapeutic failure and the need of invasive ventilation in children with acute moderate-severe bronchiolitis.Design: A systematic review and meta-analysis.SettingMedline, Embase, Lilacs, Cochrane and gray literature (May 2020) was performed.ParticipantsRandomized clinical trials patients with moderate to severe bronchiolitis.Main variablesTherapeutic failure, need for invasive ventilation, adverse events, length of PCCU and of hospital stay.InterventionThe quality of the studies was assessed with the Cochrane risk and bias tool. We conducted meta-analysis using fixed effect model and random effects model.Results: Three RCTs were included. Showed less risk of therapeutic failure with CPAP compared with HFNC (RR=0.7; 95%CI 0.5–0.99) developed hours later in patients with CPAP (MD=3.16; 95%CI 1.55–4.77). We did not find differences in other outcomes, such as need of invasive ventilation (RR=0.60; 95%CI 0.25–1.43), apnea (RR=0.40; 95%CI 0.08–1.99), or number of days in the intensive care unit (MD=0.02; 95%CI −0.38 to 0.42), and length of hospitalization (MD=−1.00; 95%IC −2.66 to 0.66). Adverse events (skin lesions) were more common with CPAP (RR 2.47; 95%CI 1.17–5.22).Conclusion: sIn moderate/severe bronchiolitis CPAP demonstrated a lower risk of therapeutic failure and a longer time to failure. But more adverse events like nasal injury. There were no differences in other variables (AU)

Objetivo: Comparar la seguridad y la efectividad de la presión positiva continúa en la vía aérea (CPAP) y la cánula nasal de oxígeno de alto flujo (OAF) para prevenir el fracaso terapéutico y la necesidad de ventilación mecánica invasiva en niños con bronquiolitis aguda moderada y grave.Diseño: Revisión sistemática y metaanálisis.ÁmbitoBúsqueda en Medline, Embase, Lilacs, Cochrane y literatura gris (hasta mayo 2020).ParticipantesEnsayos clínicos aleatorizados en pacientes con bronquiolitis aguda moderada-grave.IntervencionesLa calidad de los estudios se evaluó utilizando la escala de riesgo de sesgos de Cochrane y se realizó un metaanálisis usando modelo de efectos fijos y de efectos aleatorios.VariablesFracaso terapéutico, necesidad de ventilación invasiva, eventos adversos, estancia en la UCIP y en hospitalización.Resultados: Tres estudios fueron incluidos. Evidenciamos menor riesgo de fracaso terapéutico en los pacientes con CPAP comparados con CAF (RR: 0,7; IC 95%: 0,5-0,99), y este se desarrolló más tarde en los pacientes con CPAP (MD: 3,16; IC 95%: 1,55-4,77). No hubo diferencias en otras variables, como la necesidad de ventilación invasiva (RR: 0,60; IC 95%: 0,25-1,43), apnea (RR: 0,40; IC 95%: 0,08-1,99), estancia en la UCIP (MD: 0,02; IC 95%: −0,38-0,42) y en hospitalización (MD: −1,00; IC 95%: −2,66-0,66). Los eventos adversos (lesiones en piel) fueron más comunes en CPAP (RR: 2,47; IC 95%: 1,17-5,22).Conclusiones: En bronquiolitis moderada y grave el CPAP demostró menor riesgo de fracaso terapéutico y una aparición más tardía, pero más eventos adversos (lesiones en piel). No encontramos diferencias en otras variables (AU)

Development and Validation of the OSA-CPAP Perceived Competence Evaluation Interview.

INTRODUCTION: Continuous positive airway pressure (CPAP) is one of the most common therapies for Obstructive Sleep Apnea (OSA). We present a brief, patient-reported outcome measure used to assess patients' levels of adherence with CPAP treatment. METHODS: A questionnaire was developed based on academic literature. We qualitatively tested a pool of 18 items. It was tested in a sample of 174 patients from the Hospital La Princesa. Next, 1021 patients from Catalonia were evaluated. RESULTS: 5 items were removed. Nominal groups referred to three areas: general knowledge about OSA and its risks; CPAP treatment information and expectations; CPAP use, monitoring, and confidence with its use. The 13 retained items maintained the same meaning as the original questionnaire (r=.986; p<.001) and the three proposed dimensions detected a significant increase in general knowledge of OSA (t[173]=8.097, p<.001); CPAP treatment information (t[173]=15.170, p<.001); and CPAP use (t[173]=14.642, p<.001). The final 12-item version was reliable (CRI=.793) and its internal structure was adequate (χ2[51]=72.073; p=.027, CFI=.967, RMSEA=.020 [.000, .030]). Women had a better general knowledge of OSA (t[1,018]=2.190, p=.029), CPAP treatment information (t[1,018]=2.920, p=.004), and higher overall OSA-CPAP scores (t[1,018]=3.093, p=.002). Scores were positively related to quality of life and motivation, adherence was positively related to CPAP use and monitoring, and the total score was negatively related to daytime sleepiness. CONCLUSIONS: The interview could help clinicians prevent some dropouts by targeting patients with lower adherence. It's a tool for assessing patient adherence to CPAP and to promote strategies through education and external motivational stimuli.

Cálculo de predicción de presión de CPAP. Una alternativa ante la dificultad de realizar titulación en el contexto de la pandemia por COVID 19

Resumen Introducción: El tratamiento de elección para el síndrome de apneas hipopneas del sueño (SAHOS) es la presión positiva continua de aire en la vía aérea (CPAP) titulando la presión efectiva que elimine los eventos obstructivos a través de métodos validados. Desde el inicio de la pandemia de COVID 19, se ha recomendado posponer las titulaciones convencionales, indicando en su lugar equipos autoajustables. En nuestra población es dificultoso el acceso a estos dispositivos. Objetivo: Demostrar si existe diferencia entre el nivel de presión de CPAP calculado a partir de una fórmula de predicción y la presión determinada mediante titulación bajo polisomnografía. Materiales y Métodos: Se incluyeron pacientes con SAHOS en los que se realizó una titulación de CPAP efectiva y se comparó con la CPAP calculada por la fórmula de Miljeteig y Hoffstein. Resultados: Se incluyeron registros de historias clínicas de 583 pacientes, (56%) hombres, 51 años (41-61), índice de apneas e hipopneas (IAH) 51.3 (29.2 -84.4), CPAP calculada 9.3 cm H2O vs CPAP efectiva 8 cm H2O (p < 0.0001). Comparando según grado de severidad del SAHOS, la diferencia promedio entre CPAP calculada y CPAP efectiva fue 0.24, 0.21 y 0.41 (diferencias no significativas) para leve, moderado y grave hasta un IAH < 40, en pacientes con un IAH ≥ 40 esta diferencia fue de 1.10 (p < 0.01). Hallamos una aceptable correlación entre la CPAP calculada y CPAP efectiva, coeficiente de correlación intraclase = 0.621 (p < 0.01). Conclusión: Podrían utilizarse cálculos de predicción de presión de CPAP para iniciar tratamiento en pacientes con SAHOS sin acceso a terapias autoajustables en el contexto de la pandemia hasta tanto puedan realizarse las medidas de calibración estándar.

Development and Validation of the OSA-CPAP Perceived Competence Evaluation Interview / Desarrollo y validación de la Entrevista para la evaluación de la competencia percibida en AOS-CPAP

Introducción: La presión positiva continua en la vía aérea (CPAP) es uno de los tratamientos más frecuentes para la apnea obstructiva del sueño (AOS). Presentamos una breve medida de resultados percibidos por el paciente para evaluar los niveles de adhesión de los pacientes al tratamiento con CPAP.Métodos: Se desarrolló un cuestionario basado en la literatura académica. Se ensayó cualitativamente un conjunto de 18 ítems en una muestra de 174 pacientes del Hospital La Princesa (Madrid). A continuación se evaluaron 1.021 pacientes de Cataluña.Resultados: Se eliminaron 5 ítems. Los grupos nominales se refirieron a tres áreas: conocimiento general sobre la AOS y sus riesgos; información y expectativas de tratamiento con CPAP; uso de la CPAP, seguimiento y desenvoltura en su manejo. Los 13 ítems conservados mantuvieron el mismo significado que el cuestionario original (r=0,986; p<0,001) y las tres dimensiones propuestas detectaron un aumento significativo en el conocimiento general de la AOS (t[173]=8,097, p<0,001); información sobre el tratamiento con CPAP (t[173]=15,170, p<0,001); y uso de la CPAP (t[173]=14,642, p<0,001). La versión final de 12 ítems fue fiable (CRI=0,793) y su estructura interna fue adecuada (χ2 [51]=72,073; p=0,027, CFI=0,967, RMSEA=0,020 [0,000, 0,030]). Las mujeres mostraron mejor conocimiento general de la AOS (t[1,018]=2,190, p=0,029), de la información sobre el tratamiento con CPAP (t[1,018]=2,920, p=0,004), y obtuvieron mejores puntuaciones globales en la entrevista OSA-CPAP (t[1,018]=3,093, p=0,002). Las puntuaciones se relacionaron positivamente con la calidad de vida y la motivación, la adhesión se relacionó positivamente con el uso y el seguimiento con CPAP, y la puntuación total se relacionó negativamente con la somnolencia diurna. (AU)

Introduction: Continuous positive airway pressure (CPAP) is one of the most common therapies for Obstructive Sleep Apnea (OSA). We present a brief, patient-reported outcome measure used to assess patients’ levels of adherence with CPAP treatment.Methods: A questionnaire was developed based on academic literature. We qualitatively tested a pool of 18 items. It was tested in a sample of 174 patients from the Hospital La Princesa. Next, 1021 patients from Catalonia were evaluated.Results: 5 items were removed. Nominal groups referred to three areas: general knowledge about OSA and its risks; CPAP treatment information and expectations; CPAP use, monitoring, and confidence with its use. The 13 retained items maintained the same meaning as the original questionnaire (r=.986; p<.001) and the three proposed dimensions detected a significant increase in general knowledge of OSA (t[173]=8.097, p<.001); CPAP treatment information (t[173]=15.170, p<.001); and CPAP use (t[173]=14.642, p<.001). The final 12-item version was reliable (CRI=.793) and its internal structure was adequate (χ2[51]=72.073; p=.027, CFI=.967, RMSEA=.020 [.000, .030]). Women had a better general knowledge of OSA (t[1,018]=2.190, p=.029), CPAP treatment information (t[1,018]=2.920, p=.004), and higher overall OSA-CPAP scores (t[1,018]=3.093, p=.002). Scores were positively related to quality of life and motivation, adherence was positively related to CPAP use and monitoring, and the total score was negatively related to daytime sleepiness. (AU)

Resultados preliminares de una unidad de soporte ventilatorio no invasivo en SARS-COV-2 / Preliminary results of a non-invasive ventilatory support unit in SARS-COVID-2

Resumen La utilización de tratamientos de soporte respiratorio no invasivos en la pandemia por COVID-19, es motivo de controversias. El objetivo de este trabajo observacional, fue mostrar la experiencia del primer mes desde la creación de la Unidad de Soporte Ventilatorio no Invasivo (USoVNI) en el Hospital Fernández. Se describe la creación de la unidad, relación profesional de atención-paciente, tipo de habitación, equipo de protección personal modificado, equipamiento de diagnóstico, monitoreo y soporte ventilatorio para tratamiento, criterios de inclusión y algoritmo de tratamiento. Ingresaron 40 pacientes, 25 (63%) derivados de Clínica Médica, 10 (25%) de Emergentología y 5 (13%) de guardia externa. Al ingreso, se calcularon los escores National Early Warning Score, Acute Physiology and Chronic Health Disease Classification System II y Sequential Organ Failure Assessment, con medianas de 12, 8, y 2 puntos, respectivamente. El escore Lung Ultrasonography Score se tomó para cuantificar el compromiso pulmonar ecográficamente. Todos los pacientes ingresaron con máscara con reservorio, y fue estimada una fracción inspirada de O de 80% para el cálculo de la razón presión arterial de O / fracción inspirada de O (Pa/FiO ) de ingreso. El tiempo transcurrido desde el inicio de síntomas hasta el ingreso a la unidad tuvo una mediana de 13 días. El desarrollo de la USoVNI permitió que una gran proporción no fueran trasladados a la Unidad de Terapia Intensiva y podría ser beneficioso para preservar su capacidad. Nuestros resultados sugieren que estas unidades resultarían adecuadas para el tratamiento de la insuficiencia respiratoria aguda grave por COVID-19.

Abstract The use of non-invasive respiratory support in the context of the COVID-19 pandemic is controversial. The aim of this observational study was to show the experience of the first month since the creation of a Non-invasive Ventilatory Support Unit (NIVSU) at Hospital Fernández. We describe the creation of the NIVSU, the health professional-patient ratio, the type of room, the modified personal protection equipment; diagnostic, monitoring and ventilatory support equipment for treatment, as well as the inclusion criteria and the treatment algorithm. Twenty five (63%) of patients were referred from the Internal Medicine Ward, 10 (25%)) from Shock Room, and 5 (13%) from Emergency Ward. National Early Warning Score, Acute Physiology and Chronic Health Disease Classification System II and Sequential Organ Failure Assessment, were calculated on admission, with a median of 12, 8, and 2 points, respectively. The Lung Ultrasonography Score was taken to quantify lung ultrasound findings. All patients were admitted with a reservoir mask, 80% inspired O fraction was estimated for the calculation of arterial O pressure/ inspired O fraction ratio (Pa/FiO ) at admission. The median of time elapsed from the onset of symptoms referred by the patient to UNIT admission was 13 days. The development of NIVSU prevented a large proportion of patients from being transferred to Intensive Care Unit (ICU) and it could be beneficial in preserving ICUs capacity. These early results suggest that non-invasive treatment may be beneficial for the treatment of severe acute respiratory failure by COVID-19.

Continuous Positive Airway Pressure vs. High Flow Nasal Cannula in children with acute severe or moderate bronchiolitis. A systematic review and Meta-analysis.

OBJECTIVE: To compare the safety and effectiveness of Continuous Positive Airway Pressure (CPAP) vs. High Flow Nasal Cannula (HFNC) to prevent therapeutic failure and the need of invasive ventilation in children with acute moderate-severe bronchiolitis. DESIGN: A systematic review and meta-analysis. SETTING: Medline, Embase, Lilacs, Cochrane and gray literature (May 2020) was performed. PARTICIPANTS: Randomized clinical trials patients with moderate to severe bronchiolitis. MAIN VARIABLES: Therapeutic failure, need for invasive ventilation, adverse events, length of PCCU and of hospital stay. INTERVENTION: The quality of the studies was assessed with the Cochrane risk and bias tool. We conducted meta-analysis using fixed effect model and random effects model. RESULTS: Three RCTs were included. Showed less risk of therapeutic failure with CPAP compared with HFNC (RR=0.7; 95%CI 0.5-0.99) developed hours later in patients with CPAP (MD=3.16; 95%CI 1.55-4.77). We did not find differences in other outcomes, such as need of invasive ventilation (RR=0.60; 95%CI 0.25-1.43), apnea (RR=0.40; 95%CI 0.08-1.99), or number of days in the intensive care unit (MD=0.02; 95%CI -0.38 to 0.42), and length of hospitalization (MD=-1.00; 95%IC -2.66 to 0.66). Adverse events (skin lesions) were more common with CPAP (RR 2.47; 95%CI 1.17-5.22). CONCLUSIONS: In moderate/severe bronchiolitis CPAP demonstrated a lower risk of therapeutic failure and a longer time to failure. But more adverse events like nasal injury. There were no differences in other variables.

Upcoming Scenarios for the Comprehensive Management of Obstructive Sleep Apnea: An Overview of the Spanish Sleep Network.

Sleep is considered an essential part of life and plays a vital role in good health and well-being. Equally important as a balanced diet and adequate exercise, quality and quantity of sleep are essential for maintaining good health and quality of life. Sleep-disordered breathing is one of the most prevalent conditions that compromises the quality and duration of sleep, with obstructive sleep apnea (OSA) being the most prevalent disorder among these conditions. OSA is a chronic and highly prevalent disease that is considered to be a true public health problem. OSA has been associated with increased cardiovascular, neurocognitive, metabolic and overall mortality risks, and its management is a challenge facing the health care system. To establish the main future lines of research in sleep respiratory medicine, the Spanish Sleep Network (SSN) promoted the 1st World Café experts' meeting. The overall vision was established by consensus as "Sleep as promoter of health and the social impact of sleep disturbances". Under this leitmotiv and given that OSA is the most prevalent sleep disorder, five research lines were established to develop a new comprehensive approach for OSA management: (1) an integrated network for the comprehensive management of OSA; (2) the biological impact of OSA on comorbidities with high mortality, namely, cardiovascular and metabolic diseases, neurocognitive diseases and cancer; (3) Big Data Analysis for the identification of OSA phenotypes; (4) personalized medicine in OSA; and (5) OSA in children: current needs and future perspectives.

Non-Invasive Mechanical Ventilation Versus Continuous Positive Airway Pressure Relating to Cardiogenic Pulmonary Edema in an Intensive Care Unit.

BACKGROUND: To compare the application of non-invasive ventilation (NIV) versus continuous positive airway pressure (CPAP) in the treatment of patients with cardiogenic pulmonary edema (CPE) admitted to an intensive care unit (ICU). METHODS: In a prospective, randomized, controlled study performed in an ICU, patients with CPE were assigned to NIV (n=56) or CPAP (n=54). Primary outcome was intubation rate. Secondary outcomes included duration of ventilation, length of ICU and hospital stay, improvement of gas exchange, complications, ICU and hospital mortality, and 28-day mortality. The outcomes were analyzed in hypercapnic patients (PaCO2>45mmHg) with no underlying chronic lung disease. RESULTS: Both devices led to similar clinical and gas exchange improvement; however, in the first 60min of treatment a higher PaO2/FiO2 ratio was observed in the NIV group (205±112 in NIV vs. 150±84 in CPAP, P=.02). The rate of intubation was similar in both groups (9% in NIV vs. 9% in CPAP, P=1.0). There were no differences in duration of ventilation, ICU and length of hospital stay. There were no significant differences in ICU, hospital and 28-d mortality between groups. In the hypercapnic group, there were no differences between NIV and CPAP. CONCLUSIONS: Either NIV or CPAP are recommended in patients with CPE in the ICU. Outcomes in the hypercapnic group with no chronic lung disease were similar using NIV or CPAP.

Effect of Nasal Continuous Positive Pressure on the Nostrils of Patients with Sleep Apnea Syndrome and no Previous Nasal Pathology. Predictive Factors for Compliance. / Efecto de la presión positiva continua nasal sobre las fosas nasales de pacientes con síndrome de apneas del sueño sin patología nasal previa. Factores predictivos de cumplimiento.

OBJECTIVE: To evaluate the effect of continuous positive airway pressure (CPAP) on the nostrils of patients with sleep apnea-hypopnea syndrome and its impact on quality of life, and to identify predictive factors for compliance. METHODS: Longitudinal prospective study. Thirty-six consecutive patients evaluated before and 2 months after CPAP using the following variables: clinical (eye, nose and throat [ENT] symptoms, Epworth test, anxiety/depression scales, general and rhinoconjunctivitis-specific quality of life); anatomical (ENT examination, computed tomography); functional (auditive and Eustachian tube function, nasal flow, mucociliary transport); biological (nasal cytology); and polisomnographics. The sample was divided into compliers (≥4h/d) and non-compliers (<4h/d). RESULTS: A significant improvement was observed in daytime sleepiness (p=0.000), anxiety (P=.006), and depression (P=.023). Nasal dryness (P=.000), increased neutrophils in nasal cytology (P=.000), and deteriorating ciliary function were evidenced, particularly in compliers. No significant differences were observed in the other variables. Baseline sleepiness was the only factor predictive of compliance. CONCLUSIONS: CPAP in patients without previous nasal pathology leads to an improvement in a series of clinical parameters and causes rhinitis and airway dryness. Some ENT variables worsened in compliers. Sleepiness was the only prognostic factor for poor tolerance.

Effects of continuous positive airway pressure treatment on cognitive functions in patients with severe obstructive sleep apnoea. / Efectos del tratamiento con presión positiva continua en la vía aérea sobre las funciones cognitivas en pacientes con apnea del sueño grave.

INTRODUCTION: Obstructive sleep apnoea syndrome (OSAS) has numerous implications for health and can affect neurocognitive functions in patients. OBJECTIVE: To evaluate the neuropsychological functions most affected by OSAS, the factors associated with OSAS severity that are related to those functional limitations, and the effect of therapy with continuous positive airway pressure. PATIENTS AND METHOD: The sample consisted of 60 participants: 30 patients diagnosed with OSAS (clinical group) and 30 people without the disorder (control group). Memory, intellectual processes, and attention were analysed with selected subtests from the Luria-Nebraska neuropsychological battery (immediate memory, logical memory, intellectual processes, and attentional control subtests). RESULTS: Patients obtained significantly lower scores than controls in most of the areas evaluated. Associations were identified between subjective sleep quality and conceptual activity (r=-0.279; P<.05) and attentional control (r=-0.392; P<.01); between oxygen saturation and both immediate memory (r=0.296; P<.05) and thematic drawings (r=0.318; P<.05); and between apnoea-hypopnoea index and immediate memory (r=-0.303; P<.05), logical memory (r=-0.359; P<.01), and thematic drawings (r=-0.302; P<.05). Continuous positive airway pressure was shown to be effective (P=.03) only for improving immediate memory in patients with OSAS. CONCLUSIONS: Patients with severe OSAS showed memory and attentional limitations, associated with poorer quality of sleep and with worst AHI and SaO2 mean. The CPAP use improved memory of the patients evaluated.

Elevated Extravascular Lung Water Index (ELWI) as a Predictor of Failure of Continuous Positive Airway Pressure Via Helmet (Helmet-CPAP) in Patients With Acute Respiratory Failure After Major Surgery.

INTRODUCTION: NIV is increasingly used for prevention and treatment of respiratory complications and failure. Some of them are admitted to the PACU with advanced hemodynamic monitors which allow quantification of Extravascular Lung Water (EVLW) by transpulmonary thermodilution technique (TPTD) and Pulmonary Vascular Permeability (PVP) providing information on lung edema. AIM: The objective of this study was to ascertain if EVLW Index and PVP Index may predict failure (intubation) or success (non-intubation) in patients developing acute respiratory failure (ARF) in the postoperative period following major abdominal surgery, where the first line of treatment was non-invasive continuous positive airway pressure via a helmet. METHODS: Hemodynamic variables, EVLWI and PVPI were monitored with a transpulmonary thermodilution hemodynamic monitor device (PiCCO™) before and after the application of CPAP. RESULTS: Avoidance of intubation was observed in 66% of patients with Helmet-CPAP. In these patients after the first hour of application of CPAP, PaO2/FiO2 ratio significantly increased (303.33±65.2 vs. 141.6±14.6, P<.01). Before starting Helmet-CPAP values of EVLWI and PVPI were significantly lower in non-intubated patients (EVLWI 8.6±1.08 vs. 11.8±0.99ml/kg IBW, P<.01 and PVPI 1.7±0.56 vs. 3.0±0.88, P<.01). An optimal cut-off value for EVLWI was established at 9.5, and at 2.45 for PVPI (sensitivity of 0.7; specificity of 0.9, P<.01). CONCLUSION: In this type of patient the physiological parameters that predict the failure of Helmet-CPAP with the greatest accuracy were the value of the EVLWI and PVPI before Helmet-CPAP institution and the PaO2/FiO2 ratio and the respiratory rate after one hour of CPAP.

Presión positiva continua nasal en neonatos de Villa Clara / Nasal continuous positive pressure in neonates from Villa Clara

INTRODUCCIÓN: la presión positiva continua en la vía aérea en pacientes que respiran espontáneamente se define como CPAP (en inglés, de Continuous Positive Airways Pressure), y consiste en la modalidad de ventilación mecánica no invasiva más sencilla. OBJETIVO: caracterizar el uso de la presión positiva continua en la vía aérea nasal, en recién nacidos con dificultad respiratoria. MÉTODOS: se realizó un estudio observacional descriptivo transversal, que incluyó a los 149 recién nacidos que recibieron esta técnica ventilatoria, en el Hospital Provincial Universitario Ginecoobstétrico "Mariana Grajales", de Santa Clara, en los años 2012-2013. Se aplicó un instrumento confeccionado al efecto, que incluyó variables perinatales y neonatales Se analizaron variables como: edad gestacional, peso, vía del parto, diagnóstico, edad posnatal al inicio y tiempo del tratamiento, evolución clínica, gasométrica y/o radiológica. Se obtuvieron los datos del departamento de estadística, historias clínicas pediátricas y obstétricas, y los libros de registro de parto; así como, los registros de morbilidad y mortalidad continua del servicio. Para el análisis descriptivo de la muestra se utilizaron frecuencias absolutas y relativas según el tipo de información. RESULTADOS: el mayor porcentaje de los recién nacidos fueron pretérminos (83,2 %) y con peso inferior a 2 500 g. Se ventilaron en la primera hora de vida 78 neonatos, y la duración del tratamiento inferior a las 24 horas fue más frecuente. La principal indicación médica fue el edema pulmonar. CONCLUSIONES: la mayoría de los neonatos presentó una evolución clínica, gasométrica y/o radiológica satisfactoria.

INTRODUCTION: continuous positive airways pressure in patients who normally breathes (known as CPAP) is a simpler modality of noninvasive mechanical ventilation. OBJECTIVE: to characterize the use of the nasal continuous positive airways pressure in newborns with respiratory distress. METHODS: cross-sectional, descriptive and observational study of 149 newborns that were treated with this ventilation technique at "Mariana Grajales" provincial university gynecobstetric hospital in Santa Clara in 2012 and 2013. An instrument including perinatal and neonatal variables was particularly designed for this purpose. These variables covered gestational age, weight, delivery, diagnosis, postnatal age at the beginning of treatment and length of time, clinical progress, gasometric and/or radiological progress. The study used data from the statistical department in addition to pediatric and obstetric medical histories, delivery register books, and continuous morbidity and mortality records of the service. For statistical analysis of the sample, absolute and relative frequencies were used depending on the type of information. RESULTS: the highest percentage of newborns was preterm (83.2 %) weighing less than 2 500 g. Seventy eight neonates were ventilated during their first hour of life and the treatment mostly lasted less than 24 hours. The main medical indication for treatment was pulmonary edema. CONCLUSIONS: most of neonates had satisfactory clinical, gasometric and/or radiological progression.

[Evolution of non-invasive ventilation in acute bronchiolitis]. / Evolución de la ventilación mecánica no invasiva en la bronquiolitis.

OBJECTIVES: The aim of the study was to analyse the evolution, over a12-year period, of the use of non-invasive (NIV) and invasive ventilation (IV) in children admitted to a Paediatric Intensive Care Unit (PICU) due to acute bronchiolitis. PATIENTS AND METHODS: A retrospective observational study was performed including all children who were admitted to the PICU requiring NIV or IV between 2001 and 2012. Demographic characteristics, ventilation assistance and clinical outcome were analysed. A comparison was made between the first six years and the last 6 years of the study. RESULTS: A total of 196 children were included; 30.1% of the subjects required IV and 93.3% required NIV. The median duration of IV was 9.5 days and NIV duration was 3 days. The median PICU length of stay was 7 days, and 2% of the patients died. The use of NIV increased from 79.4% in first period to 100% in the second period (P<.0001) and IV use decreased from 46% in first period to 22.6% in the last 6 years (P<.0001). Continuous positive airway pressure and nasopharyngeal tube were the most frequently used modality and interface, although the use of bi-level non-invasive ventilation (P<.001) and of nasal cannulas significantly increased (P<.0001) in the second period, and the PICU length of stay was shorter (P=.011). CONCLUSION: The increasing use of NIV in bronchiolitis in our PICU during the last 12 years was associated with a decrease in the use of IV and length of stay in the PICU.

Home ventilation therapy in obstructive sleep apnea-hypopnea syndrome.

Obstructive sleep apnea-hypopnea is a highly prevalent disease that is often underdiagnosed at present. It has a significant economic and social welfare impact, accounting for a large part of the resources assigned to home respiratory therapies. As part of the 2014 SEPAR Year of the Chronic Patient and Domiciliary Respiratory Care sponsored by the Spanish Society of Pulmonology and Thoracic Surgery, this article reviews the most recent publications on the indications and controversial issues in the treatment of sleep apnea, the latest evidence for indication of various positive pressure devices, and adjustment modes, ranging from the use of empirical formulae or mathematical estimations to modern auto-CPAP equipment, while not forgetting the gold standard of manual titration. Emphasis is placed on the need for monitoring required by patients to ensure treatment adherence and compliance. Finally, other therapies that are not the object of this article are briefly reviewed.