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Partial Sleep Study

A limited version of a whole-night polysomnography (PSG)

Partial Sleep Study

A partial sleep study is a limited version of a whole-night polysomnography (PSG). It has relatively fewer monitoring channels; and those are devoted to respiratory functions. The focus on respiratory functions makes it ideal for diagnosing sleep-related breathing disorders.

It is also a less expensive diagnostic procedure and the data it generates is much easier to score than data produced by a whole-night PSG.

A trend towards greater use of partial sleep studies is underway, though it cannot always replace a full PSG, especially if sleep problems are more complex or not caused only by respiratory disorders.

Comparison Table of Full and Partial Sleep Study:

Channels Measured

Full PSG Sleep Study

Partial Sleep Study
EEG (electroencephalogram) ​​​​✓  
EMG (electromyogram) ​​​​✓  
EOG (electro-oculogram)  
ECG (electrocardiogram)  
PLM (Peripheral Limb Movement) ​​​​✓  
Snoring ​​​​✓ ​​​​✓
Nasal Flow ​​​​✓ ​​​​
Sleep Position ​​​​✓ ​​​​✓
Pulse Rate ​​​​ ​​​​✓
Oxygen Saturation Level ​​​​ ​​​​
Respiratory Effort ​​​​ ​​​​

Read more about sleep diagnostics here.

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