Heart_Rhythm4.3 - App Store

This App is useful to know of your stroke risk, by recording of your heart rhythm on the graph.

With our passion that we want to reduce cardiogenic cerebral embolism (CCE) as many as possible, we developed this app.

The major cause of CCE is atrial fibrillation (Af). There are the established means of prevention and care before CCE onset.

However, the problem is that Af is often without symptoms or a little symptom; therefore, few patients undergoes appropriate treatment.
We wish more and more patients with Af are undergoing appropriate treatment as many as possible with the use of this app.

How to use this App.
*Record your heart rhythm by iPhone camera and check your stroke risk.

　Please place your tip of index or middle finger on the camera lens.
　Keep your fingertips relax and not to move while monitoring heart rhythm.
　Screen shot of your heart rhythm is taken when the heart rhythm graph is stabilized,
　and you can check of your stroke risk by comparing your pulse record against
　irregular pulse record.

　If irregular intervals were observed, please consult with a primary-care doctor.
　Normal pulse ( called sinus rhythm ) is made by regular contraction of heart.
　In contrast, arrhythmia cased by atrial fibrillation (AF) is made by irregular contraction
　of heart.
*Know the mechanism of the Stroke and calculate the risk for an onset of Stroke.

　Atrial fibrillation (Af) is a very common arrhythmia. Prevalence of Af is increasing as aging.
　This is reported that some 50s may have Af, 10 percent of 80s have Af.

　Af promotes blood clotting ( thrombus ) in heart.
　Thrombus in heart sometimes blocks suddenly cerebrovascular on blood flow.
　This is called the cardiogenic cerebral embolism (CCE).
　CCE is one type of severe stroke that has high fatality rate. If survival, CCE patient
　often has serious sequela.

　Af is the most critical risk of CCE. Fortunately, now we have established means of
　prevention and cure of Af and CCE if finding Af before the onset.
　Prevention is better than cure. The most important thing is early diagnosis and early
　consult to the appropriate hospital.

　Calculate the risk using CHA2DS2-VASc Score, and you will know your annual risk rate
　and lifetime risk rate of developing CCE..
*Display hospitals around you
*Planning and Development

　Planning and Development：Kensuke Igarashi M.D. Ochanomizu Medical Clinic Director
　Cooperative development：Yoshimasa Matsumoto CEO SoftRobo

*Operating Environment

　iPhone 6, 6 Plus, 6S, 6S Plus, SE, 7, 'Plus
8, 8Plus, X, XR, XS, XS Max
11, 11 Pro, 11 Pro Max,
12, 12 Pro, 12 ProMax. 12 mini,
13. 13 Pro, 13 ProMax 13 mini, and later

Flashlight feature is required
OS Version: IOS12.0 and later.

Version History The iPhone 17 is supported. However, the iPhone 17 Pro, 17 Pro Max, and Air are not supported, as the flash is positioned far enough from the lens to prevent light from reaching your fingers. 4.3 10/03/2025 Supports iPhone 16 models.
Clear visual guidance is provided to indicate which camera should be used to measure your pulse wave. 4.2 05/27/2025 Support iPhone13 Series. 4.1 09/24/2021 Support New iPhone series. 3.1 06/13/2020 Add support for iPhone 8, 8Plus, X 2.8 02/12/2018 Add support for iPhone SE. 2.4 05/25/2016 Add support device message. 2.3.1 01/28/2016 Heart Rhythm Version 2.3 supports additional iPhone 6S and iPhone 6S Plus with IOS9 and later operating environment. 2.3 01/09/2016 Heart Rhythm Version 2.1 supports additional iPod Touch 6 with IOS8 and later operating environment. 2.1 09/08/2015 Heart Rhythm Version1.3 supports additional iPhone6 and iPhone6 Plus with IOS8 and later operating environment. 1.3 11/03/2014 *Previously recorded graph of your heart rhythm can be directly reviewed again from the app instead of opening the photo album.

*Graph of your checked heart rhythm is stored to photo album with the appended normal pulse graph and irregular pulse of a real atrial fibrillation patient.

*Calculation method of life time risk rate of developing stroke was revised for excluding the recurrence of the stroke. 1.2 04/10/2014 Heart Rhythm Japanese Version is now released. 1.1 03/08/2014 1.0 02/18/2014