閉塞性睡眠時呼吸障害の閉塞部位診断

Abstract

Obstructive sleep respiratory disorders (OSRD) are breathing disorders occuring during sleep, which include snoring and sleep apnea syndromes.Twenty-two adult patients who had been diagnosed as having OSRD underwent polysomnographic examination with two point baroreceptors, one in the esophageal area and the other in the mesopharyngeal area. We could find the site of obstruction by simultaneous two point pressure measurements. There were four types of OSRD: the transfer type (Group A, n=1), root-of-tongue type (Group B, n=5), combined type (Group C, n=3) and soft-palate type (Group D, n=14).The mean followed by that in the intraesophageal pressure (EP) was highest in the root-of-tongue type. The combined type was higher that in the soft-palate type. Apnea index was greatest in combined type than followed by that in the soft-palate type. The decrease of SaO2 then in the root-of-tongue type and combined type patients were the most obese.The correct diagnosis of the area of obstruction and the selection of the operative method most appropriate for that area are very important.