Improvement in Pulmonary Function Tests After Septoplasty: A Longitudinal Study

Introduction The relationship between the nasal and pulmonary systems is rooted in the shared anatomy and physiology of the upper and lower respiratory tracts. Our study objective was to assess the improvement in pulmonary function tests (PFTs) after septoplasty in patients with a deviated nasal septum (DNS). Methods A longitudinal study was conducted at a tertiary care center from October 1, 2022, to March 31, 2024. Patients aged 18-55 years with chronic nasal obstruction due to an isolated DNS were included in the study. Patients under 18 or over 55 years of age, those undergoing combined nasal surgeries, and those with comorbidities such as hypertension, diabetes, chronic smoking, chronic obstructive pulmonary disease, bronchial asthma, turbinate hypertrophy, chronic sinusitis, or nasal polyposis were excluded. Pre-operative assessments included detailed ear, nose, and throat examinations, routine blood investigations, X-rays of the chest and paranasal sinuses (Waters' view), PFTs (spirometry), the Sino-Nasal Outcome Test-22 (SNOT22) questionnaire, and the six-minute walk test (6MWT). Post-operative assessments included repeated spirometry, a 6MWT at three weeks post-surgery, and the SNOT22 questionnaire for subjective symptom assessment. Results Participants included 30 males and 30 females, with a mean age of 35.6 ± 8.2 years. Significant improvements (p < 0.05) were observed in PFT parameters (forced expiratory volume in one second (FEV1), forced vital capacity (FVC), FEV1/FVC ratio, peak expiratory flow), exercise capacity (6MWT distance), and symptom severity (SNOT22 scores) post-septoplasty. High levels of patient satisfaction and notable improvements in quality of life were reported. The average hospital stay was 2.5 days. Conclusion Septoplasty in patients with DNS significantly improves pulmonary function, exercise capacity, and symptom severity, with high patient satisfaction and minimal complications.