Abstract:
:The Sensmart Model X-100 (Nonin Medical Inc, Plymouth, MN, USA) is a relatively new device that possesses two sets of emitters and detectors and uses near infrared spectroscopy (NIRS) to measure regional cerebral oxygen saturation (rSO2). The value of rSO2 obtained by other NIRS devices is affected by physiological and anatomical variables such as hemoglobin concentration, area of cerebrospinal fluid (CSF) layer and skull thickness. The effects of these variables have not yet been determined in measurement of rSO2 by Sensmart Model X-100. We examined the effects of area of CSF, hemoglobin concentration, and skull thickness on the values of rSO2 measured by Sensmart Model X-100 and tissue oxygen index (TOI) measured by NIRO-200NX (Hamamatsu Photonix, Hamamatsu, Japan). Forty neurosurgical, cardiac and vascular surgical patients who underwent preoperative computed tomographic (CT) scan of the brain were enrolled in this study. Regional cerebral oxygen saturation (rSO2) at the forehead was measured sequentially by NIRO-200NX and by Sensmart Model X-100. Simultaneously, mean arterial pressure, hemoglobin concentration, and partial pressure of carbon dioxide in arterial blood (PaCO2) were measured. To evaluate the effects of anatomical factors on rSO2, we measured skull thickness and area of CSF layer using CT images of the brain. Multiple regression analysis was used to examine the relationships between the rSO2 values and anatomical and physiological factors. The area of the CSF layer and hemoglobin concentration had significant associations with rSO2 measured by the Sensmart Model X-100, whereas none of the studied variables was significantly associated with TOI. The measurement of rSO2 by Sensmart Model X-100 is not affected by the skull thickness of patients. Area of the CSF layer and hemoglobin concentration may be the main biases in measurement of rSO2 by Sensmart Model X-100.
journal_name
J Clin Monit Computjournal_title
Journal of clinical monitoring and computingauthors
Tanaka Y,Suzuki M,Yoshitani K,Sakamoto A,Bito Hdoi
10.1007/s10877-020-00567-ysubject
Has Abstractpub_date
2020-07-31 00:00:00eissn
1387-1307issn
1573-2614pii
10.1007/s10877-020-00567-ypub_type
杂志文章abstract::Near-infrared spectroscopy (NIRS) has been used to detect in vivo microvascular alterations by means of a vascular occlusion test. We sought to analyse by NIRS the microcirculatory profile of patients undergoing prolonged tourniquet-induced bloodless condition for extremity surgery, and compare the results with time o...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-016-9877-x
更新日期:2017-06-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章,评审
doi:10.1007/s10877-012-9383-8
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abstract::Jasiukaitis and Lyon (J Clin Monit Comput, https://doi.org/10.1007/s10877-018-0181-9, 2018) described an motor evoked potential (MEP)amplitude trending system to detect MEP amplitude loss against a background of MEP variability. They found that the end of case value of a running R2 triggered by a set MEP amplitude los...
journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-019-00272-5
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-018-0203-7
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-019-00280-5
更新日期:2020-02-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-018-0148-x
更新日期:2019-04-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 临床试验,杂志文章
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pub_type: 杂志文章
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1023/a:1026284321451
更新日期:2002-12-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-018-0123-6
更新日期:2018-12-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1023/a:1009993232534
更新日期:1999-05-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-007-9094-8
更新日期:2007-12-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-017-9998-x
更新日期:2018-02-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1023/a:1009978414365
更新日期:1998-07-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-020-00604-w
更新日期:2020-10-12 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 临床试验,杂志文章
doi:10.1023/a:1024208827407
更新日期:2002-08-01 00:00:00
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doi:10.1007/s10877-010-9269-6
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-020-00587-8
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
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更新日期:2017-04-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-017-0033-z
更新日期:2018-06-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1023/a:1009978816071
更新日期:1998-08-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
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更新日期:2014-02-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
doi:10.1007/s10877-016-9966-x
更新日期:2017-12-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
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更新日期:2012-06-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
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更新日期:2020-04-01 00:00:00
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journal_title:Journal of clinical monitoring and computing
pub_type: 杂志文章
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更新日期:2005-06-01 00:00:00