Methods and systems for arrhythmia tracking and scoring
A dashboard centered around arrhythmia or atrial fibrillation tracking is provided. The dashboard includes a heart or cardiac health score that can be calculated in response to data from the user such as their ECG and other personal information and cardiac health influencing factors. The dashboard also provides to the user recommendations or goals, such as daily goals, for the user to meet and thereby improve their heart or cardiac health score. These goals and recommendations may be set by the user or a medical professional and routinely updated as his or her heart or cardiac health score improves or otherwise changes. The dashboard is generally displayed from an application provided on a smartphone or tablet computer of the user.
1. A smart watch to detect the presence of an arrhythmia of a user, comprising:
a processing device;
a photoplethysmography (“PPG”) sensor operatively coupled to the processing device;
an ECG sensor, comprising two or more ECG electrodes, the ECG sensor operatively coupled to the processing device;
a display operatively coupled to the processing device; and
a memory, operatively coupled to the processing device, the memory having instructions stored thereon that, when executed by the processing device, cause the processing device to:
receive PPG data from the PPG sensor;
detect, based on the PPG data, the presence of an arrhythmia;
receive ECG data from the ECG sensor; and
confirm the presence of the arrhythmia based on the ECG data.
2. The smart watch of claim 1 , further comprising a motion sensor operatively coupled to the processing device, wherein to detect the presence of the arrhythmia, the processing device is configured to:
receive motion sensor data from the motion sensor; and
determine, from motion sensor data, that the user is at rest.
3. The smart watch of claim 2 , wherein to detect the presence of the arrhythmia, the processing device is configured to input the PPG data into a machine learning algorithm trained to detect arrhythmias.
4. The smart watch of claim 2 , wherein to detect the presence of the arrhythmia, the processing device is configured to:
determine heartrate variability (“HRV”) data from the PPG data; and
detect, based on the HRV data, the presence of the arrhythmia.
5. The smart watch of claim 4 , wherein to detect the presence of the arrhythmia, the processing device is configured to input the HRV data into a machine learning algorithm trained to detect arrhythmias.
6. The smart watch of claim 5 , wherein to detect the presence of the arrhythmia, the processing device is further configured to input the motion sensor data with the HRV data into the machine learning algorithm trained to detect arrhythmias.
7. The smart watch of claim 1 , wherein the processing device is further configured to:
extract one or more features from the PPG data; and
detect, based on the one or more features, the presence of the arrhythmia.
8. The smart watch of claim 7 , wherein the one or more features correspond to an HRV signal analyzed in a time domain.
9. The smart watch of claim 7 , wherein the one or more features comprise a nonlinear transform of R-R ratio or R-R ratio statistics with an adaptive weighting factor.
10. The smart watch of claim 7 , wherein the one or more features are features of an HRV signal analyzed geometrically.
11. The smart watch of claim 7 , wherein the one or more features are features of an HRV signal analyzed in the frequency domain.
12. The smart watch of claim 1 , wherein the processing device is further configured to generate a notification of the detected arrhythmia.
13. The smart watch of claim 1 , further comprising a biometric data sensor, wherein the processing device is further configured to:
receive biometric data of the user from the biometric data sensor; and
detect, based on the biometric data, the presence of the arrhythmia.
14. The smart watch of claim 13 , wherein the biometric data comprises at least one of: a temperature, a blood pressure, or an inertial data of the user.
15. The smart watch of claim 1 , the processing device further configured to display an ECG rhythm strip from the ECG data.
16. The smart watch of claim 1 , the processing device further to receive the ECG data from the ECG sensor in response to receiving an indication of a user action.
17. A method to detect the presence of an arrhythmia of a user on a smart watch, comprising:
receiving PPG data from a PPG sensor of the smartwatch;
detecting by a processing device, based on the PPG data, the presence of an arrhythmia;
receiving ECG data from an ECG sensor of the smartwatch; and
confirming the presence of the arrhythmia based on the ECG data.
18. The method of claim 17 , wherein detecting the presence of the arrhythmia comprises:
receiving motion sensor data from a motion sensor of the smartwatch; and
determine, from motion sensor data, that the user is at rest.
19. The method of claim 18 , wherein detecting the presence of the arrhythmia comprises inputting the PPG data into a machine learning algorithm trained to detect arrhythmias.
20. The method of claim 18 , wherein detecting the presence of the arrhythmia comprises:
determining heartrate variability (“HRV”) data from the PPG data; and
detecting, based on the HRV data, the presence of the arrhythmia.
21. The method of claim 20 , wherein detecting the presence of the arrhythmia comprises inputting the HRV data into a machine learning algorithm trained to detect arrhythmias.
22. The method of claim 21 , wherein detecting the presence of the arrhythmia comprises inputting the motion sensor data with the HRV data into the machine learning algorithm trained to detect arrhythmias.
23. The method of claim 17 , further comprising generating a notification of the detected arrhythmia.
24. The method of claim 17 , further comprising receiving the ECG data from the ECG sensor in response to receiving an indication of a user action.
25. A non-transitory computer-readable storage medium including instructions that, when executed by a processing device, cause the processing device to:
receive PPG data from a PPG sensor of the smartwatch;
detect by the processing device, based on the PPG data, the presence of an arrhythmia;
receive ECG data from an ECG sensor of the smartwatch; and
confirm the presence of the arrhythmia based on the ECG data.
26. The non-transitory computer-readable storage medium of claim 25 , wherein the processing device is further configured to:
extract one or more features from the PPG data; and
detect, based on the one or more features, the presence of the arrhythmia.
27. The non-transitory computer-readable storage medium of claim 26 , wherein the one or more features correspond to an HRV signal analyzed in a time domain.
28. The non-transitory computer-readable storage medium of claim 26 , wherein the one or more features comprise a nonlinear transform of R-R ratio or R-R ratio statistics with an adaptive weighting factor.
29. The non-transitory computer-readable storage medium of claim 26 , wherein the one or more features are features of an HRV signal analyzed geometrically or in the frequency domain.
30. The non-transitory computer-readable storage medium of claim 25 , the processing device further to receive the ECG data from the ECG sensor in response to receiving an indication of a user action.