Reviewed starting point / not a diagnosis
Upper Airway Resistance Syndrome
A label used for sleep disruption associated with increased upper-airway resistance and respiratory effort-related arousals, often without events meeting conventional apnoea or hypopnoea definitions.
Respiratory effort-related arousals (RERAs) describe sequences of increased effort or flattened airflow that end in an arousal from sleep.
Arousal-based scoring and the respiratory disturbance index can include events that the apnoea–hypopnoea index alone does not show.
The UARS evidence base and diagnostic boundaries are less settled than many online summaries imply. Current classification may place these events within obstructive sleep apnoea rather than treating UARS as a separate diagnosis.
My experience includes persistent symptoms, sleep testing and difficult questions about how my respiratory events were scored. That experience explains why this page exists; it does not establish what your test means.