Monitoring mandibular movements to detect Cheyne-Stokes Breathing

Respiratory Research

Table 1 Frames of mandibular-derived variables

MM Variable	Symbol	Categorization
At least 5 respiratory cycles during which MM amplitudes are ≥ 0.3 mm is termed a period of periodic large mandibular movements and follows the typical crescendo-decrescendo pattern of CSB.	LPM	Present or absent
At least one sharp and large MM (amplitude > 3 mm) during the hyperventilation phase or during a period of apnea. These are associated with a cortical arousal.	SPM	Present or absent

Note: A SPM results in mouth closure (on cortical arousal) whether occurring with or without a LPM. A SPM can occur during the hyperventilation phase or during the apneic period. During the hyperventilation phase, SPM is disruptive the breathing frequency.

ISSN: 1465-993X