Comparison of peripheral blood saturation with brain oxygenation in patients undergoing thoracic surgery.

Bartosz Kubisa, Anna Lesińska, Krzysztof Safranow, Jarosław Pieróg, Janusz Wójcik, Małgorzata Edyta Wojtyś, Tomasz Grodzki, Kajetan Kiełbowski
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Abstract

Introduction: Near-infrared spectroscopy (NIRS) is a non-invasive method of regional tissue oxygenation measurement. Intraoperative use of NIRS to monitor brain oxygenation (BO) during surgery might be beneficial to identify cerebral desaturations.

Aim: To compare peripheral blood saturation (SpO2) with BO measurements and evaluate the utility of BO in thoracic surgery.

Material and methods: We took BO and SpO2 measurements in a group of 100 patients undergoing standard thoracic surgery. Measurements were made every 15 minutes. The Mann-Whitney U test was used to compare study groups. Spearman's rank correlation coefficient was used to determine correlation between studied parameters.

Results: We found a negative correlation between patients' age and BO at the beginning of surgery. Operations lasted between 30 and 200 minutes. We found a positive correlation between BO and SpO2 between 15 and 90 minutes of surgery. Subsequently, BO remained at a low level while SpO2 returned to baseline values. Higher minimum SpO2 values were noted in patients undergoing left-sided procedures.

Conclusions: Cerebral oxygenation does not return to baseline values until the end of the surgery as opposed to the SpO2. Furthermore, both SpO2 and BO correlate negatively with the overall duration of thoracic surgery. In addition, after 90 minutes of surgery, SpO2 stopped reflecting brain oxygenation.

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胸外科手术患者外周血饱和度与脑氧合的比较。
简介:近红外光谱(NIRS)是一种非侵入性的区域组织氧合测量方法。术中使用近红外光谱监测术中脑氧合(BO)可能有助于识别脑去饱和。目的:比较外周血饱和度(SpO2)与BO测量值,评价BO在胸外科手术中的应用价值。材料和方法:我们对100例接受标准胸外科手术的患者进行了BO和SpO2测量。每15分钟测量一次。曼-惠特尼U测试用于比较研究小组。采用Spearman等级相关系数来确定研究参数之间的相关性。结果:我们发现患者的年龄与手术开始时的BO呈负相关。手术持续了30到200分钟。我们发现BO和SpO2在手术15到90分钟之间呈正相关。随后,BO保持在较低水平,而SpO2恢复到基线值。接受左侧手术的患者最低SpO2值较高。结论:与SpO2相反,脑氧合直到手术结束才恢复到基线值。此外,SpO2和BO与胸外科手术总时间呈负相关。此外,手术90分钟后,SpO2停止反映脑氧合。
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来源期刊
CiteScore
0.90
自引率
14.30%
发文量
44
审稿时长
6-12 weeks
期刊介绍: Polish Journal of Thoracic and Cardiovascular Surgery is a quarterly aimed at cardiologists, cardiosurgeons and thoracic surgeons. Includes the original works (experimental, research and development), illustrative and casuistical works about cardiology and cardiosurgery.
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