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Validation of a new domiciliary diagnosis device for automatic diagnosis of patients with clinical suspicion of OSA
Author(s) -
DuránCantolla Joaquín,
Zamora Almeida Gabriela,
Vegas Diaz de Guereñu Odei,
Saracho Rotaeche Luis,
Hamdan Alkhraisat Mohammad,
Durán Carro Joaquín,
Egea Santaolalla Carlos,
Anitua Eduardo
Publication year - 2017
Publication title -
respirology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.857
H-Index - 85
eISSN - 1440-1843
pISSN - 1323-7799
DOI - 10.1111/resp.12894
Subject(s) - medicine , epworth sleepiness scale , gold standard (test) , polysomnography , interclass correlation , intraclass correlation , apnea , psychometrics , clinical psychology
Background and objective Obstructive sleep apnoea is a prevalent and considerably underdiagnosed disease. The development of cost‐effective, home‐based, automatic diagnostic devices to improve the diagnosis accessibility is therefore essential. Methods In this study, a new portable polygraph ( BTI‐APNiA ) was used to validate automatic scoring. This five‐channel device records respiratory flow, oxygen saturation, heart rate, body position and snoring. The validation was performed in two phases. In the first phase, manual and automatic scorings of a new respiratory polygraphy ( RP ) device ( BTI‐APNiA ) were compared. In the second phase, automatic analysis performed with BTI‐APNiA was compared with manual scoring of a validated RP device (Embletta Gold). Results Phase I was completed by 424 patients (50.5% males, 52.2 ± 12.4 years, BMI of 25.4 ± 4.8 kg/m 2 and Epworth Sleepiness Scale score of 8.0 ± 4.0). Manual and automatic analysis resulted in an apnoea–hypopnoea index ( AHI ) of 13.7 ± 12.7 and 14.0 ± 12.5 ( P > 0.05), respectively. The interclass correlation coefficient ( ICC ) was 0.99 ( P < 0.001). During Phase II , 28 patients were evaluated (72.0% men, 49.1 ± 10.9 years, BMI of 27.1 ± 4.2 kg/m 2 and Epworth Sleepiness Scale score of 7.5 ± 4.2). Manual analysis of Embletta Gold recordings indicated an AHI of 12.3 ± 14.0, while automatic analysis of the BTI‐APNiA was 13.4 ± 14.7 ( P > 0.05). The ICC was 0.68 ( P < 0.01). Conclusion The automatic analysis of the BTI‐APNiA is as accurate as manual analysis of AHI . This automatic analysis compared well with the manual analysis of a validated RP device (Embletta Gold).