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首页> 外文期刊>Journal of Clinical Monitoring and Computing >Investigation of Pulse Transit Time Characteristics During Single and Recurrent Obstructive Respiratory Events
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Investigation of Pulse Transit Time Characteristics During Single and Recurrent Obstructive Respiratory Events

机译：单发和复发性阻塞性呼吸事件中的脉冲传播时间特性研究

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Conventional overnight polysomnography (PSG) used to determine the respiratory behaviour during sleep can be a complex and expensive procedure. Pulse transit time analysis (PTT) has shown potential to detect obstructive apnoeic and hypopnoeic events (OE) in adults. Due to abnormalities in central ventilatory control, recurring OE may occur. This study was undertaken to determine the potential of PTT to differentiate responses during upper airway obstruction in the paediatric population. This preliminary study included 11 children (10 male; aged 7.5 ± 3.8 year) recruited to investigate PTT trend during single and recurrent OE. PTT measurements were evaluated against the corresponding PSG results pre-scored by two blinded obsercvers. A total of 110 valid OE (47 single and 63 recurrent) were observed during these PSG studies. There were distinct PTT responses observed for these two types of OE with respect to those of tidal breathing (P < 0.05). For the tidal breathing events, the mean absolute standard deviation (SD) and maximal percentage (%) decrease (MAX) were 7.71 ms and 3.88% respectively. For the recurrent OE, the absolute SD, SD (%) and MAX were 52.21 ms, 8.52% and 55.08% accordingly while for the single OE, the absolute SD, SD (%) and MAX were 12.23 ms, 5.27% and 13.56% respectively. The findings herein can suggest that PTT can be a valuable clinical tool in the paediatric respiratory sleep studies.
机译：用于确定睡眠期间呼吸行为的常规隔夜多导睡眠图（PSG）可能是复杂且昂贵的过程。脉冲传播时间分析（PTT）已显示出检测成年人阻塞性催眠和催眠事件（OE）的潜力。由于中央通气控制异常，可能会发生复发性OE。进行这项研究是为了确定PTT区分儿童人群上呼吸道阻塞期间反应的潜力。这项初步研究包括11名儿童（10名男性；年龄7.5±3.8岁），他们被招募调查单次和反复OE期间的PTT趋势。根据两个盲人观察者预先给定的相应PSG结果评估了PTT测量。在这些PSG研究中，共观察到110个有效OE（47个单发和63个复发）。就潮气呼吸而言，对于这两种类型的OE，观察到了明显的PTT反应（P <0.05）。对于潮汐呼吸事件，平均绝对标准偏差（SD）和最大降低百分比（％）（MAX）分别为7.71 ms和3.88％。对于复发性OE，绝对SD，SD（％）和MAX分别为52.21 ms，8.52％和55.08％，而对于单个OE，绝对SD，SD（％）和MAX分别为12.23 ms，5.27％和13.56％分别。本文的发现可以暗示PTT可以是小儿呼吸睡眠研究中的有价值的临床工具。

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