Photoplethysmography

Can Smartwatches Accurately Capture ‘Out-of-Control’ Heartbeats? Latest Meta-Analysis on Atrial Fibrillation Detection Provides Answers

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Can Smartwatches Accurately Capture 'Out-of-Control' Heartbeats? Latest Meta-Analysis on Atrial Fibrillation Detection Provides Answers

【Research Background】 Atrial fibrillation is one of the most common arrhythmias worldwide and is a significant risk factor for stroke and heart disease, posing a serious challenge to public health. Therefore, early diagnosis and intervention are crucial. Traditional atrial fibrillation diagnosis relies on standard electrocardiograms, which, while accurate, have limitations such as a limited monitoring … Read more

Mastering a New Way to Monitor Health: How to Use Smartwatches for Accurate Blood Pressure Measurement to Protect Your Cardiovascular Health

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Mastering a New Way to Monitor Health: How to Use Smartwatches for Accurate Blood Pressure Measurement to Protect Your Cardiovascular Health

In the early morning, Uncle Li stood on the balcony stretching and casually put on his newly bought smartwatch. Measuring blood pressure in the morning has become a recent habit of his, and this watch is not an ordinary one; it can accurately measure blood pressure. He heard that many such watches on the market … Read more

Application of Surgical Pleth Index (SPI) in Pain Monitoring

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Application of Surgical Pleth Index (SPI) in Pain Monitoring

（长按 识别二维码 搜索更多麻醉学知识点） 【Definition】 The Surgical Pleth Index (SPI) is a monitoring tool that measures the photoplethysmographic signal from the fingertip to monitor the nociception-anti-nociception balance during general anesthesia. 【Principle】 Stress stimuli activate the peripheral sympathetic nervous system, inducing distal vascular contraction. By measuring the absorption of red light from the fingertip, the photoplethysmographic pulse … Read more