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PolysomnogramAka: Sleep Study, UARS, RERA, AHI, RDI, Obstructive Apnea, Obstructive Hypopnea, Upper airway resistance syndrome, Respiratory Effort Related Arousal, Apnea and Hypopnea Index, Respiratory Disturbance Index
- Indications
- Definitions
- Obstructive Apnea
- Air flow decreases 70% for at least 10 seconds with persistent respiratory effort
- Obstructive Hypopnea
- Air flow decreases 30% for at least 10 seconds with oxygen desaturation >3%
- Upper airway resistance syndrome (UARS)
- Variant of Obstructive Sleep Apnea
- Less airway collapse and less oxygen desaturation
- Frequent arousals occur as with OSA/H
- Respiratory Effort Related Arousal (RERA)
- Abnormal respiratory event associated with an arousal (e.g. gasping) per hour
- Apnea and Hypopnea Index (AHI)
- Number of Obstructive Apnea and Obstructive Hypopnea events per hour
- Respiratory Disturbance Index (RDI)
- Apnea and Hypopnea Index (AHI) and Respiratory Effort Related Arousal (RERA)
- Obstructive Apnea
- Grading
- Respiratory Disturbance Index (RDI) <5
- No Obstructive Sleep Apnea
- No treatment necessary except:
- Disruptive snoring
- Serious comorbidity (e.g. CHF)
- Upper airway resistance syndrome
- Consider if significant Sleepiness and Fatigue
- Respiratory Disturbance Index (RDI) 5 to 15
- Mild Obstructive Sleep Apnea
- Consider Upper airway resistance syndrome
- Respiratory Disturbance Index (RDI) 16 to 30
- Moderate Obstructive Sleep Apnea
- Respiratory Disturbance Index (RDI) >30
- Severe Obstructive Sleep Apnea
- Respiratory Disturbance Index (RDI) <5
Polysomnography (C0162701) | |
|---|---|
| Definition (MSH) | Simultaneous and continuous monitoring of relevant normal and abnormal physiological activity during sleep. (Stedman, 25th ed) |
| Definition (CSP) | simultaneous and continuous monitoring of relevant normal and abnormal physiological activity during sleep. |
| Concepts | Diagnostic Procedure (T060) |
| ICD9 | 89.17, 89.17 |
| MSH | D017286 |
| English | Full sleep study, POLYSOMNOGR, Polysomnogram, Polysomnographies, Polysomnography, PSG, sleep measurement, Sleep Monitoring, Sleep recording, Sleep studies, Sleep Testing, SOMNOGR, Somnographies, Somnography |
| Spanish | estudios del sueno, polisomnografia, polisomnograma |
| Parent Concepts | Measurement (C0242485), Anatomic and physiologic measurements and manual examinations -- nervous system and sense organs (C0177813), Monitoring, Physiologic (C0026429), diagnostic procedure (C0430022), Sleep-related breathing test (C0430628), Procedure by device (C1285536) |
| Sources | CSP, ICD9CM, LNC, MSH, MTH, MTHCH, MTHICD9, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System) |