Perioperative Validation of the TensorTip™ MTX Device for Noninvasive Arterial Pressure Measurement: A Method Comparison Study.

IF 1.4 Q3 CARDIAC & CARDIOVASCULAR SYSTEMS

Cardiology Research Pub Date : 2022-12-01 DOI:10.14740/cr1438

Sjoerd Servaas, Lucas T van Eijk, Silke de Vreede, Ignacio Malagon, Cornelis Slagt

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引用次数: 1

Abstract

Background: The noninvasive TensorTip™ MTX measures blood pressure by interpreting blood diffusion color of the finger skin. In addition to blood pressure, the device is able to measure various vital signs: heart rate, oxygen saturation, stroke volume, and cardiac output. Studies about accuracy and precision thus far available have only been conducted by the manufacturer. The aim of our study was to investigate the accuracy and precision of the TensorTip MTX in comparison to invasive radial artery blood pressure values.

Methods: Forty-one patients scheduled for elective surgery were enrolled in this study. Placement of the arterial catheter had to be part of the standard of care. Once hemodynamic stable conditions were achieved, blood pressure was measured. Three measurements with the TensorTip MTX were averaged and compared with one invasive blood pressure measurement using Bland-Altman plot and error grid analysis.

Results: Systolic, diastolic, and mean blood pressure had a bias of respectively 6.2, -6.9 and 4.4 mm Hg. Corresponding standard deviation were respectively 30.1, 17.0 and 22.2. Calculated percentage errors were 47.6%, 52.9% and 52.3%. Proportional bias was present in all Bland-Altman analyses. Error grid analysis showed 61.0% of systolic blood pressure measurements, and 46.3% of mean blood pressure measurements were in the clinical acceptable zone.

Conclusions: The TensorTip MTX was not able to reliably measure blood pressure compared to blood pressure obtained with an arterial catheter and therefore, the measurement performance is not clinically acceptable. Moreover, a high malfunction rate makes the device unsuitable for use in perioperative period.

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TensorTip™MTX装置用于无创动脉压力测量的围手术期验证:方法比较研究

背景:无创TensorTip™MTX通过解读手指皮肤的血液扩散颜色来测量血压。除了血压，该设备还能够测量各种生命体征:心率、血氧饱和度、中风量和心输出量。到目前为止，有关准确度和精密度的研究仅由制造商进行。我们研究的目的是研究TensorTip MTX与有创桡动脉血压值的准确性和精确性。方法:选取41例择期手术患者作为研究对象。动脉导管的放置必须是标准护理的一部分。血流动力学达到稳定状态后，测量血压。利用Bland-Altman图和误差网格分析对TensorTip MTX的三次测量结果进行平均，并与一次有创血压测量结果进行比较。结果:收缩压、舒张压和平均血压偏差分别为6.2、-6.9和4.4 mm Hg，相应的标准差分别为30.1、17.0和22.2。计算误差百分比分别为47.6%、52.9%和52.3%。在所有Bland-Altman分析中均存在比例偏倚。误差网格分析显示，61.0%的收缩压测量值和46.3%的平均血压测量值在临床可接受范围内。结论:与动脉导管获得的血压相比，TensorTip MTX不能可靠地测量血压，因此，测量性能在临床上是不可接受的。此外，高故障率使得该装置不适合在围手术期使用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cardiology Research CARDIAC & CARDIOVASCULAR SYSTEMS-

CiteScore

2.50

自引率

0.00%

发文量

期刊介绍： Cardiology Research is an open access, peer-reviewed, international journal. All submissions relating to basic research and clinical practice of cardiology and cardiovascular medicine are in this journal''s scope. This journal focuses on publishing original research and observations in all cardiovascular medicine aspects. Manuscript types include original article, review, case report, short communication, book review, letter to the editor.