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RHINOMANOMETRIC ASSESSMENT OF NASAL AIRFLOW IN DEVIATED NASAL SEPTOPLASTY AND COBLATION TURBINATE REDUCTION

1Thuy Phan Chung Tran, 2Nhung Hoang Hanh Thai

Introduction: The Nasal airflow resistance had 3 components: nasal vestibules, valves and turbinates. Nasal valves composed of a part of nasal septum. The turbinates, especially inferior turbinate, covered by mucous surface with an expansive capacity can increase or reduce the volume, this comprise of the nasal resistance. Therefore, nasal septum and inferior turbinate hypertrophy affect the nasal patency and increase nasal resistance of patients with nasal congestion. Objective: The present study was carried out to study rhinomanometrically the nasal air flow in cases of deviated nasal septum belong with inferior turbinate hypertrophy and to compare rhinomanometric improvement following surgery of nasal septoplasty and coblation inferior turbinate reduction. Methods: Descriptive cross-sectional study from January 2017 to September 2017 at ENT Hospital of HCM City. The study included 42 patients who were performed nasal septoplasty and coblation inferior turbinate reduction. The patientswere interviewed and noted down for SNOT-22 questionnaire. Preoperative and postoperative assessment of nasal air flow were also performed by rhinomanometry. Results: 42 patients including 31males and 11 females, mean age was 33,56±11,59. Preoperative assessment: TheSNOT-22meanscorewas 6,38± 3,10. Nasal airflow value was 461,17± 110,84cm3/s. Nasal airflow resistance value was 0,35± 0,07Pa/cm3/s. Post-operative assessment: The SNOT-22 mean score was 1,78±1,66 Nasal airflow value was 977,26± 155,84cm3/s. Nasal airflow resistance value 0,16± 0,03Pa/cm3/s. Nasal air flow and nasal resistance improve 2,12 and 2,18 times, respectively. Conclusion: Rhinomanometry is a objective, reliable and useful method to evaluate preoperative and post-operative nasal obstruction condition of patients. It should be used as a routine assessment in patients who are selected for operation. Keywords: Rhinomanometric, Assessment, Nasal Airflow, Deviated Nasal Septoplasty, Coblation Turbinate Reduction.

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