Sleep apnea other diagnostic studies
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Other tests for sleep apnea include EEG, EMG, EOG, ECG, a nasal airflow sensor, and a snore microphone.
Sleep Apnea Other Diagnostic Tests
- EEG (electroencephalogram) to measure and record brain wave activity
- EMG (electromyogram) to record muscle activity to determine REM stage sleep
- EOG (electro-oculogram) to record eye movements to determine REM stage sleep
- ECG (electrocardiogram) to record heart rate and rhythm.
- Nasal airflow sensor to record airflow
- Snore microphone to record snoring activity
Home respiratory polygraphy
Home respiratory polygraphy (HRP) or called home sleep apnea testing (HSAT), can be classified into:
- Level 2 (L2), which include airflow, EEG, EOG, EMG, ECG/HR, effort SaO2
- Level 3 (L3), which include airflow, thoracoabdominal bands, body position, electrocardiography, and oxygen saturation
- Level 4 (L4), which added oxygen saturation and maybe heart rate
Randomized controlled trials have compared the impact of using versus portable monitors that can be used at home:
- Corral found no significant difference..
- Chai-Coetzer found no difference using L3 channels but inconclusive results with L4 monitoring (which just included oximetry and heart rate).
- Whitelaw found no significant difference.
- Qaseem A, Dallas P, Owens DK, Starkey M, Holty JE, Shekelle P; et al. (2014). "Diagnosis of obstructive sleep apnea in adults: a clinical practice guideline from theAmerican College of Physicians". Ann Intern Med. 161 (3): 210–20. doi:10.7326/M12-3187. PMID 25089864.
- Kapur VK, Auckley DH, Chowdhuri S, Kuhlmann DC, Mehra R, Ramar K; et al. (2017). "Clinical Practice Guideline for Diagnostic Testing for Adult Obstructive Sleep Apnea: An American Academy of Sleep Medicine Clinical Practice Guideline". J Clin Sleep Med. 13 (3): 479–504. doi:10.5664/jcsm.6506. PMC 5337595. PMID 28162150.
- Mokhlesi B, Cifu AS (2017). "Diagnostic Testing for Obstructive Sleep Apnea in Adults". JAMA. 318 (20): 2035–2036. doi:10.1001/jama.2017.16722. PMID 29183053.
- Corral J, Sánchez-Quiroga MÁ, Carmona-Bernal C, Sánchez-Armengol Á, de la Torre AS, Durán-Cantolla J; et al. (2017). "Conventional Polysomnography Is Not Necessary for the Management of Most Patients with Suspected Obstructive Sleep Apnea. Noninferiority, Randomized Controlled Trial". Am J Respir Crit Care Med. 196 (9): 1181–1190. doi:10.1164/rccm.201612-2497OC. PMID 28636405.
- Chai-Coetzer CL, Antic NA, Hamilton GS, McArdle N, Wong K, Yee BJ; et al. (2017). "Physician Decision Making and Clinical Outcomes With Laboratory Polysomnography or Limited-Channel Sleep Studies for Obstructive Sleep Apnea: A Randomized Trial". Ann Intern Med. 166 (5): 332–340. doi:10.7326/M16-1301. PMID 28114683.
- Whitelaw WA, Brant RF, Flemons WW (2005). "Clinical usefulness of home oximetry compared with polysomnography for assessment of sleep apnea". Am J Respir Crit Care Med. 171 (2): 188–93. doi:10.1164/rccm.200310-1360OC. PMID 15486338. Review in: ACP J Club. 2005 Jul-Aug;143(1):21