Scientists measure cardiac arrhythmias with smartphone

Scientists have developed a system with which heart rhythm disorders can be detected via the smartphone. The heart rate is measured via a small device that is connected to the smartphone in order to detect disorders.

The required technology is developed by scientists working at the University of Sydney. The device measures variability in heartbeats, which may indicate abnormalities in the nervous system and pose a health risk. Patients have to place the necessary device on their finger, after which the heart rate can be measured.

According to the researchers, the smartphone accessory should make research into cardiac arrhythmias cheaper and easier. For example, the required device can be sent to patients by post, after which they can collect the data themselves and send it back via the smartphone. Normally, electrodes are placed on the patient’s chest for such measurements.

The heart is controlled by means of electrical impulses that reach a central distribution point, after which these impulses cause the muscles in the heart to contract in a synchronized manner. This allows blood to be pumped into the vessels. In people where these stimuli no longer work properly, a pacemaker is necessary. However, disturbances in the stimuli that control the heart can also cause other symptoms; this often indicates an incorrect functioning of the nervous system, which can also cause problems elsewhere in the body.