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A multicenter study involving more than 1,000 participants uses smartphones as measurement devices in the detection of heart failure, a rapidly increasing health burden that affects approximately 60 million patients worldwide. , gave very accurate results. The research results are JACC: Heart failure.
Heart failure is a condition in which the heart is unable to perform its normal function of pumping blood to the body. Diagnosis is difficult because its symptoms (such as shortness of breath, unusual fatigue during exercise, and swelling) can be caused by a variety of conditions, and there are no simple tests to detect it. Diagnosis depends on a doctor’s examination. , blood tests, heart ultrasound scans, and other advanced image processing. More than 30% of patients are only diagnosed after being hospitalized, even though symptoms often persist for months or years.
However, there is a non-invasive technology called cardiac gyrography that measures the vibrations of the heart in the chest, and motion sensors in smartphones can detect these vibrations, including those that doctors cannot hear with a stethoscope. and record it. The method was developed over the past 10 years by researchers at the University of Turku and the health technology company CardioSignal.
The researchers’ latest study on using smartphone motion sensors to detect heart failure was conducted at Turku University Hospital and Helsinki University Hospital in Finland, and Stanford University Hospital in the United States. About 1,000 people participated in the study, about 200 of whom had heart failure. This study compared data obtained from motion sensors in patients with heart failure and those without heart disease.
“The results obtained with this new method are promising and may facilitate the detection of heart failure in the future,” said Professor Antti Saraste from the University of Turku.
Researchers found that heart failure is associated with typical changes in motion sensor data collected by smartphones. This data is measured by placing a smartphone on a patient’s chest for two minutes and capturing signals of heart movement. Based on this data, researchers were able to identify the majority of heart failure patients.
With a diagnostic accuracy of 89%, AUC of 0.95, sensitivity of 85%, and specificity of 90%, analysis of movements detected by mobile phone gyroscopes and accelerometers is considered highly accurate and will be used in the medical profession in the future. It is believed that this method can provide rapid diagnosis to patients. A simple way to detect heart failure. Timely diagnosis and access to treatment can help reduce symptoms and reduce medical costs associated with emergency department visits and hospitalizations.
Juuso Blomster, co-founder and CEO of CardioSignal, said, “Primary care typically first evaluates patients with underlying heart failure, but there are very limited detection tools available to diagnose this complex disease. ”. “Our technology can address this urgent unmet clinical need and provide a highly scalable detection method for physicians and nurses in primary care and remote patient monitoring settings, and can help address current cardiac challenges in hospitals. It essentially addresses the bottleneck of the disease.”
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