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Internal nasal valve: revisited with objective facts
Murat Cem Miman1, Hacim Deliktaş, Orhan Ozturan
1Department of Otorhinolaryngology, Inonu University School of Medicine, 44069 Malatya, Turkey. mcmiman@yahoo.com
Summary
Objective examination of the internal nasal valve (INV) revealed a novel classification system. Specific INV configurations, like the septal body type, significantly impact nasal resistance, guiding surgical interventions.
Area of Science:
- Otolaryngology
- Rhinology
- Medical Imaging
Background:
- The internal nasal valve (INV) is crucial for nasal airflow.
- Objective assessment of INV anatomy and its impact on nasal resistance is limited.
Purpose of the Study:
- To comprehensively examine the internal nasal valve (INV) using objective methods.
- To propose a novel classification of INV configurations.
- To correlate INV anatomy with nasal airflow resistance.
Main Methods:
- Prospective study involving 248 nasal cavities.
- Objective assessments included nasal endoscopy, acoustic rhinometry (ARM), and rhinomanometry (RMM).
Main Results:
- A novel classification of INV was proposed based on endoscopic findings: convex, concave, sharp angle, blunt angle, twisted caudal border, and angle occupied by the septal body.
- The INV angle occupied with septal body type showed significantly increased nasal resistances compared to the sharp-angled type (P < 0.05).
- Significant differences were observed among convex, concave, and sharp-angle INV types (P < 0.01).
Conclusions:
- Objective examination of the INV is recommended prior to surgical intervention.
- The novel INV classification and its correlation with nasal respiration may enhance surgical planning.
- Augmenting the INV angle could positively influence nasal resistance.