Perioperative Validation of the TensorTip™ MTX Device for Noninvasive Arterial Pressure Measurement: A Method
Sjoerd Servaas1, Lucas T van Eijk1, Silke de Vreede1
1Department of Anaesthesiology, Pain and Palliative Medicine, Radboud University Medical Centre, 6500 HB Nijmegen, The Netherlands.
Cardiology Research
|January 20, 2023
Summary
The TensorTip MTX device demonstrated unreliable blood pressure measurements compared to invasive methods, showing significant errors and a high malfunction rate, deeming it clinically unacceptable for perioperative use.
Area of Science:
- Medical Devices
- Cardiovascular Monitoring
- Anesthesiology
Background:
- The TensorTip MTX is a noninvasive device designed to measure blood pressure by analyzing finger skin blood diffusion.
- It also measures other vital signs like heart rate, oxygen saturation, stroke volume, and cardiac output.
- Previous accuracy and precision studies were manufacturer-conducted.
Purpose of the Study:
- To evaluate the accuracy and precision of the TensorTip MTX.
- To compare TensorTip MTX measurements against invasive radial artery blood pressure values.
Main Methods:
- Forty-one surgical patients were enrolled.
- Blood pressure was measured invasively via radial artery catheter and noninvasively with the TensorTip MTX.
- Bland-Altman plots and error grid analysis were used for comparison.
Main Results:
- Systolic, diastolic, and mean blood pressure showed biases of 6.2, -6.9, and 4.4 mm Hg, respectively.
- Percentage errors were high: 47.6% (systolic), 52.9% (diastolic), and 52.3% (mean).
- Only 61.0% of systolic and 46.3% of mean blood pressure readings fell within the clinically acceptable zone.
Conclusions:
- The TensorTip MTX exhibits unacceptable measurement performance for blood pressure compared to invasive monitoring.
- A high device malfunction rate further limits its suitability for perioperative settings.
More Related Videos
04:27Author Spotlight: Advantages of Pressure-Volume Loop Measurement Method in Cardiovascular Research
Published on: January 12, 2024
568
09:47Measurement of Endothelium-Dependent Vasorelaxation in the Mouse Thoracic Aorta Using Tensometric Small Volume Chamber Myography
Published on: August 12, 2022
3.3K
Related Concept Videos
01:21Sites for measruring blood pressure
2.0K
Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
The Brachial Artery: Primary Site for Blood Pressure Measurement
2.0K
01:23Assessment of blood pressure in brachial artery(two-step method)
815
Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
815
01:10Pre-Procedural Guidelines for Assessing Blood Pressure
613
Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the...
613
01:30Equipments Used To Measure Blood Pressure
1.1K
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
1.1K
01:19Assessing Blood pressure using a doppler ultrasound
1.5K
To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
1.5K
01:28Special considerations while measuring blood pressure
791
When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
791