Cuffless blood pressure (BP) measurement has become a popular field due to clinical need and technological opportunity. However, no method has been broadly accepted hitherto. The objective of this review is to accelerate progress in the development and application of cuffless BP measurement methods. We begin by describing the principles of conventional BP measurement, outstanding hypertension/hypotension problems that could be addressed with cuffless methods, and recent technological advances, including smartphone proliferation and wearable sensing, that are driving the field. We then present all major cuffless methods under investigation, including their current evidence. Our presentation includes calibrated methods (i.e., pulse transit time, pulse wave analysis, and facial video processing) and uncalibrated methods (i.e., cuffless oscillometry, ultrasound, and volume control). The calibrated methods can offer convenience advantages, whereas the uncalibrated methods do not require periodic cuff device usage or demographic inputs. We conclude by summarizing the field and highlighting potentially useful future research directions.

中文翻译：

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无袖带血压测量

由于临床需求和技术机遇，无袖血压（BP）测量已成为一个热门领域。然而，迄今为止还没有一种方法被广泛接受。本次审查的目的是加快无袖血压测量方法的开发和应用进展。我们首先描述传统血压测量的原理、可以通过无袖带方法解决的突出高血压/低血压问题，以及推动该领域发展的最新技术进步，包括智能手机的普及和可穿戴传感。然后，我们介绍正在研究的所有主要无袖套方法，包括其当前的证据。我们的演示包括校准方法（即脉搏传播时间、脉搏波分析和面部视频处理）和未校准方法（即无袖示波法、超声和音量控制）。校准方法可以提供便利的优点，而未校准方法不需要定期使用袖带装置或人口统计输入。最后，我们总结了该领域并强调了未来潜在有用的研究方向。