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ORIGINAL ARTICLE
Year : 2021  |  Volume : 19  |  Issue : 2  |  Page : 83-87

Study of obstructive sleep apnea parameters in patients of nasal polyposis using peripheral arterial tonometry


Department of Otorhinolaryngology and Head and Neck Cancer Surgery, Sir Ganga Ram Hospital, Delhi, India

Correspondence Address:
Dr. Rajat Basak
Department of Otorhinolaryngology and Head and Neck Cancer Surgery, Sir Ganga Ram Hospital, Delhi
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/cmi.cmi_2_21

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Background: Obstructive sleep apnea (OSA) syndrome is characterized by partial or complete cessation of airflow and oxygen desaturation during sleep owing to upper airway collapse. This study assesses the OSA parameters in nasal polyposis patients before and after functional endoscopic sinus surgery (FESS) with the help of peripheral arterial tonometry (PAT) device. Methodology: This was a prospective study done in the months of April 2015 to June 2016. Patients with bilateral nasal polyps with Lund Mackay Scoring marking equal to and more than two of both sides. Thirty patients willing to undergo PAT sleep study before and after FESS were recruited. The sleep parameters thus obtained in the pre- and postoperative period were analyzed. Results: Out of 30 patients, 22 patients were male and eight patients were female. The mean age was 43.17 with standard deviation of 10.06 years. The mean body mass index was 29.12 with a standard deviation of 5.76. All patients underwent FESS. The PAT study was done before and after surgery. Snoring grading and Epworth Sleepiness Scale scoring improved in the majority of patients after surgery. The mean respiratory disturbance index (RDI) in the preoperative period was 32.7 which decreased to 11.34 in the postoperative period. The mean apnea hypopnea index (AHI) in the preoperative period was 22.85 which decreased to 6.34 in the postoperative period. The mean oxygen desaturation index (ODI) in the preoperative period was 16.8 which decreased to 4.4 after surgery. Significant correlation (P < 0.001) was found between pre- and postoperative RDI, AHI, ODI, and oxygen desaturation events. Conclusion: The OSA parameters before and after endoscopic sinus surgery in nasal polyposis patients got improved. The PAT device, which is the newest novel plethysmograph, proved to be a reliable device for the assessment of sleep apnea parameters in nasal polyposis in the pre- or postoperative period.


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