ISSN : 2663-2187

Management of Nasal Valve Dysfunction; H-Shaped cartilage Graft

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Ashraf ElHussiny OdaBasha, Mohamed Mohamed Rabea, Hussen Ahmed Baba Ali, Ahmed Soliman Ramadan, Abdel Raof Said Mohamed, Tamer Abd Elkader Hafez
» doi: 10.33472/AFJBS.6.2.2024.384-393

Abstract

Diagnosing NV insufficiency is not always an easy task. The doctor’s attention to the valve zone is caused by the unsatisfac¬tory result of the operation on the nasal septum and nasal con¬cha. Patient complaints about problems with nasal breathing require a mandatory examination of the vestibule of the nose without nasal mirror. The classic way to as¬sess NV dysfunction was proposed by Cottle. How¬ever, it to a greater extent demonstrates disturbances in the ar¬ea of INV than ENV. Treatment of nasal valve collapse is site-specific depending on the particular pathology leading to its manifestation. Treatment is typically aimed at either increasing the cross-sectional area of the valve for static obstructions (i.e., opening maneuvers) or supporting the lateral walls to prevent collapse for dynamic collapse (i.e., strengthening maneuvers). Treatment of the lateral wall is considered a distinct surgical entity from procedures to address the septum or turbinate. Surgical management may be necessary depending on the etiology of NVC, but promising advances have been made in minimally invasive office-based procedures as an alternative. Assessment of the efficacy of interventions can be subjective (e.g., visual analog scale (VAS), NOSE, SNOT-22) or objective (e.g., rhinomanometry, acoustic rhinometry), although more credence is given to subjective measures. Depending on a patient’s anatomy and functional etiology for NVC, the traditional surgical interventions for nasal obstruction such as septoplasty and inferior turbinate reduction may resolve static NVC without the need to specifically address any lateral nasal wall collapse. Given that the INV is bound by the septum, ULC, and inferior turbinate, a septal deviation especially dorsally and inferior turbinate hypertrophy can easily narrow the nasal valve. The narrowed valve is then prone to higher airflow speeds due to Poiseuille’s law and subsequent collapse due to the Bernoulli effect. Widening the static cross-sectional area of the valve may mitigate these forces and restore adequate valve competence. If the septal defection is particularly dorsal or caudal, involving the supporting strut, the crooked and obstructing septum may need to be addressed with an open septorhinoplasty approach, possibly with caudal septal repositioning or the addition of spreader grafts. In cases of septal loss and saddle nose deformity, due to trauma or otherwise, total extracorporeal septal reconstruction may be required. A longitudinal strip of cartilage 10 mm in length was then excised from the dorsal septum, thus creating a bed for the body of the H-shaped graft. The height of the strip was determined by the thickness of the body of the H grafte.

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