The classification captures more than whether obstruction is present: clinicians document both its degree and configuration at each of the four anatomical sites. Degree describes how much the airway narrows, while configuration records the pattern of collapse. Keeping these observations separate preserves clinically relevant detail and creates a structured description of the patient’s obstruction.
Sedation approximates natural sleep because the airway behavior being assessed is dynamic and may not be represented by an awake examination. During the assessment, a flexible endoscope visualizes collapse as it occurs at the velum, oropharyngeal lateral walls, tongue base, and epiglottis. This connects observed airway behavior with its anatomical location.
The four-site assessment shows whether obstruction is concentrated in one region or involves several parts of the upper airway. That patient-specific pattern gives clinicians a more detailed basis for considering treatment approaches, including surgery, oral appliances, or hypoglossal nerve stimulation. The resulting plan can therefore reflect the observed mechanism rather than relying only on a general diagnosis.
VOTE provides a standardized vocabulary for describing the location, degree, and configuration of collapse. Clinicians can communicate findings using the same anatomical framework, while researchers can compare observations more consistently across clinical studies. Standardization does not eliminate patient differences; instead, it organizes those differences into records that are easier to interpret and discuss.
Clinicians first administer sedation intended to approximate natural sleep, then use a flexible endoscope to observe the upper airway dynamically. They examine the velum, oropharyngeal lateral walls, tongue base, and epiglottis, recording the degree and configuration of collapse at each site. The completed classification summarizes the observed obstruction for subsequent clinical interpretation.
Clinicians may use the findings when selecting or evaluating treatment strategies for a patient with obstructive sleep apnea. The recorded collapse pattern can support decisions involving surgery, oral appliances, or hypoglossal nerve stimulation, while also providing a clear account of the airway mechanism. Its structured format helps relate endoscopic observations to individualized care planning.