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To evaluate the utility of peak nasal inspiratory flow (PNIF) as a measure of nasal airflow and functional septorhinoplasty (FSRP) outcomes.

Patients with nasal obstruction were administered Nasal Obstruction Symptom Evaluation (NOSE) questionnaire and PNIF testing between January 2015 and 2018. Surgical patients repeated these tests at 2, 4, 6, 12, and 24 months postoperatively. Patient demographics and operative techniques were recorded.

A total of 610 patients were evaluated for nasal obstruction with mean (standard deviation [SD]) NOSE score of 61.5 (23.2) and PNIF of 74.1 (35.4) liters per minute (L/min); correlation −0.16 (P < 0.001). Predictors of lower PNIF were female gender (β = −13.3, 95% confidence interval [CI] 7.7 to 18.2, P < .001) and higher NOSE scores (β = −0.43, 95% CI 0.19 to 0.68, P < 0.001). A total of 281 patients underwent FSRP with …