Zhong Jian-wen, Liu Da-bo, Huang Zhen-yun, Tan Zong-yu, Shao Jian-bo, Qiu Shu-yao, Yu Jie
Department of Otorhinolaryngology, Guangzhou Children's Hospital, Guangzhou 510120, China.
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2010 Aug;45(8):660-3.
To explore the diagnostic value of pulse transit time (PTT) in children with sleep disordered breathing(SDB).
Forty eight randomly selected snorers (2 - 13 years) with SDB were examined by PSG and PTT in the same time. Data obtained were analyzed by different technicians respectively. Statistics and analysis of the data were performed.
Apnea hypopnea index (AHI), obstructive apnea index (OAI), the lowest oxygen and micro-arousal index were obtained by PSG and PTT. The results was described as M [25 percentile; 75 percentile]: 4.9[1.3;10.1], 4.6[1.5;11.8]; 1.2[0.7;4.9], 1.3[0.6;5.0]; 0.93[0.85;0.95], 0.93[0.84;0.95]; 14.5[12.6;16.4], 26.0[17.4;30.6]. The difference of AHI, OAI, and the lowest oxygen were not significant (P > 0.05), while the PTT arousal index detection rate was higher than PSG (Z = -5.19, P < 0.01). There was no significant difference in the diagnosis of obstructive sleep apnea-hypopnea syndrome (OSAHS) and determination of degree of patient's condition (P > 0.05). PTT could identify upper airway resistance syndrome in children without OASHS.
Both methods can be used to diagnose SDB. However, PTT is easy to use and suitable for the diagnosis of SDB in children, especially for UARS.
探讨脉搏传导时间（PTT）在儿童睡眠呼吸障碍（SDB）中的诊断价值。
随机选取48例2至13岁患有SDB的打鼾儿童，同时进行多导睡眠图（PSG）和PTT检查。所获数据分别由不同技术人员进行分析。对数据进行统计分析。
通过PSG和PTT得出呼吸暂停低通气指数（AHI）、阻塞性呼吸暂停指数（OAI）、最低血氧饱和度及微觉醒指数。结果表示为M[第25百分位数；第75百分位数]：4.9[1.3；10.1]，4.6[1.5；11.8]；1.2[0.7；4.9]，1.3[0.6；5.0]；0.93[0.85；0.95]，0.93[0.84；0.95]；14.5[12.6；16.4]，26.0[17.4；30.6]。AHI、OAI及最低血氧饱和度的差异无统计学意义（P>0.05），而PTT觉醒指数检出率高于PSG（Z=-5.19，P<0.01）。在阻塞性睡眠呼吸暂停低通气综合征（OSAHS）的诊断及病情程度判定方面差异无统计学意义（P>0.05）。PTT可识别无OSAHS儿童的上气道阻力综合征。
两种方法均可用于诊断SDB。然而，PTT使用简便，适用于儿童SDB的诊断，尤其是上气道阻力综合征（UARS）。
