Utility of home oximetry as a screening test for patients with moderate to severe symptoms of obstructive sleep apnea
| Autor: | Rosario Carpizo, José M. Cifrian, Antonio Jiménez, Rafael Golpe |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Moderate to severe
Male medicine.medical_specialty Screening test Home Care Services Hospital-Based Observation Polysomnography Sensitivity and Specificity Severity of Illness Index Physiology (medical) Internal medicine medicine Humans Oximetry Retrospective Studies Sleep disorder Sleep Apnea Obstructive medicine.diagnostic_test business.industry Apnea Electroencephalography Middle Aged medicine.disease University hospital nervous system diseases respiratory tract diseases Surgery Obstructive sleep apnea Female Neurology (clinical) medicine.symptom business Hypopnea |
| Zdroj: | Sleep. 22(7) |
| ISSN: | 0161-8105 |
| Popis: | Objective: To determine the value of home oximetry as a screening test in patients with moderate to severe symptoms of obstructive sleep apnea (OSA). Design: Retrospective, observational study. Setting: The Sleep Unit of a tertiary referral, university hospital. Patients: 116 patients referred for evaluation of moderate to severe symptoms of OSA in which both home oximetry and polysomnography (PSG) were performed. Interventions: NA Results: Three numerical oximetry indices were evaluated: average of desaturations ≥ 4% and average of resaturations ≥ 3% per hour of analysis time (DI4% and RI3%, respectively); and cumulative percentages of time spent at saturations below 90% (CT90%). A qualitative assessment was also performed. Oximetry indices were compared with apnea/hypopnea index (AHI) by simple linear regression and Bland-Altman analyses. Optimal cut-off points, in terms of sensitivity and specificity, for the oximetry indices were searched using ROC analysis, at an AH threshold of ≥ 10. The correlation between AHI and the desaturation indices was r=0.50 for CT90%, r=0.60 for D14%, and r=0.58 for R13%. No bias was found between PSG and oximetry indices in Bland-Altman plots. Neither the numerical indices nor the qualitative analysis achieved an adequate (> 0.8) area under the ROC curve. A CT90% |
| Databáze: | OpenAIRE |
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