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Rev. chil. enferm. respir ; 34(2): 89-94, ago. 2018. tab
Article in Spanish | LILACS | ID: biblio-959412

ABSTRACT

RESUMEN Objetivo: Evaluar el efecto de un dispositivo binivel autoajustable sobre los eventos respiratorios en pacientes adultos con síndrome de apnea obstructiva del sueño (SAOS) grave. Se revisaron las polisomnografías (PSG) realizadas con el uso de un dispositivo de binivel autoajustable. La arquitectura de sueño, eventos respiratorios, saturación de O2 (SpO2) y dióxido de carbono exhalado (EtCO2) se compararon entre la PSG basal y la PSG terapéutica. Resultados: Se incluyeron 10 PSG. El dispositivo binivel autoajustable corrigió la arquitectura de sueño; disminuyó el índice de apnea hipopnea (IAH) de 76 (39-137) a 14 (6-13) a expensas de apneas obstructivas y mixtas (p < 0,05), no se observó descenso significativo en las hipopneas. Las apneas centrales incrementaron de 0,5 (0-12,4) a 8,2 (0-20) h−1. La SpO2 y EtCO2 mejoraron. Conclusiones: En pacientes con SAOS grave el dispositivo binivel autoajustable corrige la arquitectura de sueño, mejora la SpO2 y EtCO2 y disminuye el IAH a expensas de apneas obstructivas y mixtas, pero podría no eliminar las hipopneas e incrementar las apneas centrales.


Objective: To evaluate the effect of an auto-bilevel device on respiratory events in adults with severe obstructive sleep apnea syndrome (OSAS). Polysomnographies (PSG) with the use of auto-bilevel device were reviewed. Sleep architecture, respiratory events, O2 saturation (SpO2) and exhaled carbon dioxide (EtCO2) were compared among baseline and therapeutic PSG. Results: We included 10 PSG. Auto-bilevel device corrected the sleep architecture; the apnea hypopnea index (AHI) decreased from 76 (39-137) to 14 (6-13) at the expense of obstructive and mixed apneas (p < 0.05), there was no significant decrease in hypopneas. Central apneas increased from 0.5 (0-12.4) to 8.2 (0-20) h−1. SpO2 and EtCO2 improved. Conclusions: In severe OSAS auto-bilevel device corrects sleep architecture, improves SpO2 and EtCO2 and decreases AHI at the expense of obstructive and mixed apneas, but could not eliminate hypopneas and even could increase central apneas.


Subject(s)
Humans , Male , Adolescent , Adult , Middle Aged , Biomedical Engineering/instrumentation , Sleep Apnea, Obstructive/diagnosis , Sleep Apnea, Obstructive/therapy , Equipment and Supplies , Biomedical Engineering/methods , Polysomnography , Continuous Positive Airway Pressure/instrumentation , Continuous Positive Airway Pressure/methods
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