Rapid eye movement sleep behavior disorder on polysomnography
Rapid eye movement sleep behavior disorder on polysomnography
PSG 30-second epoch of REM sleep. Note the REM marked by the dashed box. RWA >15 seconds in the leg EMG derivations is noted in the solid box. Annotation at the top of the epoch notes presence of bilateral feet movements on video review during the RWA. Multiple epochs of RWA with leg movements on video review confirm a diagnosis of REM sleep behavior disorder.
ABD: abdominal effort;
C4M1: central EEG electrode;
CEMG: chin EMG;
CFlow: nasal airflow;
CPAP: continuous positive airway pressure;
ECG1: electocardiogram;
EEG: electroencephalogram;
EMG: electromyogram;
F4M1: frontal EEG electrode;
LEOGM2: left electrooculogram;
LTLEG: left leg;
MSnore: snoring microphone;
O2M1: occipital EEG electrode;
PSG: polysomnogram;
PulseR: pulse rate;
REM: rapid eye movements;
REOGM2: right electrooculogram;
RTLEG: right leg;
RWA: REM without atonia;
THO: thoracic effort;
s: seconds;
SpO2: peripheral oxygen saturation.
