Usage of four-phase high-resolution rhinomanometry and measurement of nasal resistance in sleep-disordered breathing
The Laryngoscope, 07/11/2012
Toh ST et al. – Four–phase high–resolution rhinomanometry (HRR) and acoustic rhinometry are tests that can be easily performed by sleep specialists to characterize nasal resistance in sleep–disordered breathing (SDB) patients and determine changes in resistance with positional changes. In this study, the authors found that patients who did not demonstrate a decrease in nasal resistance with inclined position were more likely to be noncompliant with nasal continuous positive airway pressure (CPAP). These measurements may help us objectively identify patients who might have trouble tolerating nasal CPAP.