Comparison of Polysomnographic Findings according to Obstruction Sites in Obstructive Sleep Apnea Patients.
- Author:
Sung Joong MOON
1
;
Chul Hee LEE
;
Doo Hee HAN
;
Il Gyu KONG
;
Si Hwan KIM
;
In Young YOON
;
Seok Hoon CHUNG
;
Chae Seo RHEE
;
Yang Gi MIN
;
Dong Young KIM
;
Jeong Hun KIM
Author Information
1. Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Sleep apnea;
Polysomnography;
Apnea level;
Airway pressure recording
- MeSH:
Airway Obstruction;
Apnea;
Catheters;
Epiglottis;
Esophagus;
Humans;
Nasal Cavity;
Oxygen;
Polysomnography;
Sleep Apnea Syndromes;
Sleep Apnea, Obstructive*;
Uvula
- From:Korean Journal of Otolaryngology - Head and Neck Surgery
2007;50(9):779-783
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND AND OBJECTIVES: The aim of this study is to identify differences in polysomnographic findings according to the upper airway obstruction level in patients with obstructive sleep apnea (OSA). SUBJECTS AND METHOD: Eighty-four patients with OSA were included in this study. Every patient underwent polysomnography (PSG) and upper airway pressure measurement using a four-sensor catheter simultaneously. The catheter was positioned at the posterior nasal cavity, uvula tip, tip of the epiglottis, and mid-esophagus level, which was inserted through the nasal cavity down to the esophagus. The patients were categorized into two groups of single site obstruction and multi-site obstruction. RESULTS: Twenty-one patients showed single site obstruction and sixtythree patients showed multi-site obstruction. Apnea-hypopnea index, apnea index, and minimal oxygen saturation showed statistically significant differences between two groups. There was no difference in bony mass index (BMI). CONCLUSION: Upper airway pressure measurement can be a method to evaluate the upper airway obstruction site. This study shows that OSA patients with multisite obstruction have severer sleep apnea than those with single site obstruction.
