Cuffless Blood Pressure Devices
Corey K Bradley1, Daichi Shimbo1, David Alexander Colburn2
1The Columbia Hypertension Center and Lab, Columbia University Irving Medical Center, New York, New York, USA.
Insights
Cuffless blood pressure (BP) monitoring offers potential advantages over traditional cuff-based devices for hypertension management. However, limitations in accuracy and implementation currently hinder widespread clinical adoption.
Area of Science:
- Cardiology
- Biomedical Engineering
- Clinical Hypertension Management
Background:
- Hypertension significantly contributes to end-organ damage and cardiovascular events.
- Out-of-office blood pressure (BP) monitoring, including ambulatory and home BP monitoring, is recommended for accurate hypertension diagnosis.
- Current cuff-based BP monitoring methods face limitations such as poor tolerability and potential for erroneous readings due to improper technique or cuff size.
Purpose of the Study:
- To review various cuffless BP monitoring technologies and their potential to overcome limitations of cuff-based devices.
- To discuss the engineering principles, validation protocols, and implementation barriers of cuffless BP devices.
- To identify future research directions for cuffless BP monitoring in hypertension management.
Main Methods:
- Review of existing literature on cuffless blood pressure (BP) monitoring technologies.
- Analysis of engineering aspects, validation methodologies, and clinical utility of cuffless BP devices.
- Discussion of potential barriers to widespread implementation and future research needs.
Main Results:
- Cuffless BP devices may offer improved tolerability and ease of use compared to cuff-based methods.
- Challenges remain regarding the accuracy, standardization of validation protocols, and clinical integration of cuffless BP technologies.
- Potential benefits include overcoming technique-related errors and enhancing patient convenience in outpatient settings.
Conclusions:
- Cuffless BP monitoring presents a promising alternative to traditional methods for hypertension diagnosis and management.
- Further research and robust validation are crucial to address current limitations and facilitate routine clinical adoption.
- Addressing engineering challenges and establishing clear implementation guidelines are essential for the successful integration of cuffless BP devices.
Abstract:
Hypertension is associated with more end-organ damage, cardiovascular events, and disability-adjusted life years lost in the United States compared with all other modifiable risk factors. Several guidelines and scientific statements now endorse the use of out-of-office blood pressure (BP) monitoring with ambulatory BP monitoring or home BP monitoring to confirm or exclude hypertension status based on office BP measurement. Current ambulatory or home BP monitoring devices have been reliant on the placement of a BP cuff, typically on the upper arm, to measure BP. There are numerous limitations to this approach. Cuff-based BP may not be well-tolerated for repeated measurements as is utilized with ambulatory BP monitoring. Furthermore, improper technique, including incorrect cuff placement or use of the wrong cuff size, may lead to erroneous readings, affecting diagnosis and management of hypertension. Compared with devices that utilize a cuff, cuffless BP devices may overcome challenges related to technique, tolerability, and overall utility in the outpatient setting. However, cuffless devices have several potential limitations that limit its routine use for the diagnosis and management of hypertension. The review discusses the different approaches for determining BP using various cuffless devices including engineering aspects of cuffless device technologies, validation protocols to test accuracy of cuffless devices, potential barriers to widespread implementation, and future areas of research. This review is intended for the clinicians who utilize out-of-office BP monitoring for the diagnosis and management of hypertension.
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