Changing stroke rehab and research worldwide now.Time is Brain! trillions and trillions of neurons that DIE each day because there are NO effective hyperacute therapies besides tPA(only 12% effective). I have 523 posts on hyperacute therapy, enough for researchers to spend decades proving them out. These are my personal ideas and blog on stroke rehabilitation and stroke research. Do not attempt any of these without checking with your medical provider. Unless you join me in agitating, when you need these therapies they won't be there.

What this blog is for:

My blog is not to help survivors recover, it is to have the 10 million yearly stroke survivors light fires underneath their doctors, stroke hospitals and stroke researchers to get stroke solved. 100% recovery. The stroke medical world is completely failing at that goal, they don't even have it as a goal. Shortly after getting out of the hospital and getting NO information on the process or protocols of stroke rehabilitation and recovery I started searching on the internet and found that no other survivor received useful information. This is an attempt to cover all stroke rehabilitation information that should be readily available to survivors so they can talk with informed knowledge to their medical staff. It lays out what needs to be done to get stroke survivors closer to 100% recovery. It's quite disgusting that this information is not available from every stroke association and doctors group.

Sunday, August 28, 2016

Smartphone detects atrial fibrillation with existing hardware

This is so fucking cool, but it is having patients diagnose themselves similar to having to diagnose yourself having a stroke. So your doctor will probably pooh-pooh the idea. I will probably do it.
http://www.alphagalileo.org/ViewItem.aspx?ItemId=167324&CultureCode=en
Smartphones can be used to detect atrial fibrillation with existing hardware, according to research presented at ESC Congress 2016 today.1 A low-cost application (app) has been developed that uses the phone’s own accelerometer and gyroscope to check for atrial fibrillation.
“Atrial fibrillation is a dangerous medical condition present in 2% of the global population and accounting for up to seven million strokes per year,” said lead author Tero Koivisto, a vice-director of the Technology Research Centre (TRC), University of Turku, Finland. “In the European Union alone this heart rhythm disorder costs approximately USD $19 billion every year.”
Around 70% of strokes due to atrial fibrillation could be avoided with pre-emptive medication. However, atrial fibrillation often occurs randomly on/off and is difficult to detect by visiting a doctor. There are relatively large and costly electrocardiogram (ECG) devices that patients can take home for long-term monitoring but they require a patch or wires that are clumsy to use and continuous contact with electrodes tends to irritate the skin.
Due to the above constraints, current methods for detection of atrial fibrillation are infeasible for wide-scale screening of populations or higher risk age groups (60 years and above).
The current study tested the ability of a smartphone to detect atrial fibrillation without any add-on hardware. The study included 16 patients with atrial fibrillation from the Turku Heart Centre. In addition, 20 recordings from healthy people were used as control group data to validate the developed algorithm.
To detect atrial fibrillation, a smartphone was placed on the chest of the patient, and accelerometer and gyroscope recordings were taken. Patients were advised to lie in a prone or supine position during the measurements.
Mr Koivisto said: “We use the accelerometer and gyroscope of the smartphone to acquire a heart signal from the patient. A measurement recording is taken, and the acquired data is pre-processed by signal processing methods. Multiple features such as autocorrelation and spectral entropy are then extracted from the pre-processed data. Finally, a machine learning algorithm (KSVM) is used to determine if the patient suffers from atrial fibrillation.”
Using this technology the investigators detected atrial fibrillation with a sensitivity and specificity of more than 95%.
“We measure the actual motion of the heart via miniature accelerometers and gyroscopes that are already installed in today’s smartphones,” said Mr Koivisto. “No additional hardware is needed and people just need to install an app with the algorithm we developed.”
He continued: “If people feel odd and want to check their cardiac status, they can simply lie down, place the phone on their chest, take an accelerometer and gyroscope measurement, then use the app to analyse the result. They will get a simple yes/no answer as to whether they have atrial fibrillation or not.”
Mr Koivisto concluded: “This is a low cost, non-invasive way to detect atrial fibrillation that people can do themselves without any help from medical staff. Given the widespread use of smartphones, it has the potential to be used by large populations worldwide. In future, a secure cloud service could be created to store and analyse larger masses of data.”
Full bibliographic information1Mr Tero Koivisto will present the abstract “Detecting atrial fibrillation via existing smartphones without any add-ons” during:
• The press conference “Stroke and Arrhythmia: Life or Death” on 27 August at 15:00 to 16:00
• The session “Mobile health for cardiac monitoring” on 29 August at 16:30 to 18:00 in room Budapest – Village 6

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