Goldman Ran D, Aziz Aly Shah, Marques Linda, Rogovik Alex L
Pediatric Research in Emergency Therapeutics Program, Division of Pediatric Emergency Medicine, BC Children's Hospital, Canada.
J Trauma. 2010 Mar;68(3):650-4. doi: 10.1097/TA.0b013e3181a5b332.
: Near-infrared spectroscopy is a new noninvasive method of monitoring oxygen saturation at a tissue level. The purpose of this study was to evaluate new near-infrared tissue spectrometer InSpectra (Hutchinson Technology Inc.) in children and to determine preferable areas of the body to measure tissue oxygen saturation (StO2).
: Prospective study at a pediatric emergency department. Children aged 0 years to 17 years with no respiratory distress participated in this study. StO2 on deltoid muscle, thenar eminence, forearm, calf, bicep, and tricep was measured at triage with a 25-mm probe.
: A total of 310 patients were recruited. The mean age of participants was 6.8 years +/- 4.4 years and 53% were males. Average StO2 was 84% (95% confidence interval, 81-87%) on the bicep muscle, 83.5% (95% confidence interval, 82-85%) on the deltoid muscle and significantly (p < 0.05) lower on other areas. Variation of StO2 was lower on the bicep, deltoid, and thenar muscles. Regression analysis showed significant linear relationship between patients' age and StO2 measured on the thenar eminence (beta = 0.3, R = 0.08, p < 0.001) and between patients' weight and StO2 on the thenar eminence (beta = 0.3, R = 0.07, p < 0.001). StO2 in febrile patients was similar to afebrile children, except thenar eminence where StO2 was significantly lower (p = 0.002). Less than 5% reported any type of pain or cried during StO2 measurement, which did not differ from pulse oximetry.
: Bicep and deltoid muscles are the most appropriate areas to measure StO2 using the 25-mm transducer in children of different ages. The use of near-infrared spectroscopy on the thenar eminence, which is usually used for measurement in adults, has varied results in children depending on the age, weight, and presence of fever.
近红外光谱技术是一种监测组织水平氧饱和度的新型非侵入性方法。本研究旨在评估新型近红外组织光谱仪InSpectra（哈钦森技术公司）在儿童中的应用，并确定测量组织氧饱和度（StO2）的最佳身体部位。
在一家儿科急诊科进行前瞻性研究。0至17岁无呼吸窘迫的儿童参与本研究。在分诊时，使用25毫米探头测量三角肌、鱼际、前臂、小腿、二头肌和三头肌的StO2。
共招募了310名患者。参与者的平均年龄为6.8岁±4.4岁，53%为男性。二头肌的平均StO2为84%（95%置信区间，81 - 87%），三角肌为83.5%（95%置信区间，82 - 85%），其他部位显著较低（p < 0.05）。二头肌、三角肌和鱼际肌的StO2变化较小。回归分析显示，患者年龄与鱼际测量的StO2之间存在显著线性关系（β = 0.3，R = 0.08，p < 0.001），患者体重与鱼际的StO2之间也存在显著线性关系（β = 0.3，R = 0.07，p < 0.001）。发热患者的StO2与无发热儿童相似，但鱼际处的StO2显著较低（p = 0.002）。不到5%的患者在StO2测量期间报告有任何类型的疼痛或哭闹，这与脉搏血氧饱和度测量无异。
对于不同年龄段的儿童，使用25毫米传感器测量StO2时，二头肌和三角肌是最合适的部位。在成人中通常用于测量的鱼际使用近红外光谱技术，在儿童中根据年龄、体重和发热情况结果有所不同。
