1Department of Nursing Science, College of Life & Health Sciences, Hoseo University, Asan, Korea
2Department of Medical Informatics, College of Medicine, The Catholic University of Korea, Seoul, Korea
3Department of Endocrinology and Metabolism, College of Medicine, The Catholic University of Korea, Seoul, Korea
4Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Korea
Copyright © 2019. Korean Society of Cardiovascular Disease Prevention; International Society of Cardiovascular Pharmacotherapy, Korea Chapter.
This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Funding
This work was supported by the Technology Development Program (S2726209) funded by the Ministry of SMEs and Startups (MSS, Korea). This research was supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education (NRF2018R1C1B5030802).
Conflict of Interest
The authors have no financial conflicts of interest.
Author Contributions
Conceptualization: Lee J, Kim HS, Kim DJ. Supervision: Kim HS, Kim DJ. Writing - original draft: Lee J. Writing - review & editing: Kim HS, Kim DJ.
Study | Data | Research purpose/method | Findings | Limitations/future work |
---|---|---|---|---|
Lee et al.18) | Blood pressure | Proposed blood pressure estimation algorithm using the relationship between blood flow and electrocardiogram results | Pulse wave velocity was strongly correlated with blood pressure | Stronger correlation with diastolic blood pressure than systolic blood pressure, which directly related to pulse wave |
Prokhorov et al.19) | Low-frequency oscillation of the pulse and blood flow (index [which may worsen during acute myocardial infarction and hypertension]) | Developed a mobile app to measure 24-hour pulse and blood flow data to assess cardiovascular status in real time, continuously record photoplethysmogram signals from the finger, and monitor synchronization of pulse and vibration of blood flow | The difference between the index s value calculated only using the photoplethysmogram and the index s value calculated on the electrocardiogram as well was less than 2% | Earlobe data for photoplethysmograms will be added |
Ahn and Cho20) | Heart sounds | Machine learning technique assessed cardiovascular disease using heart sounds obtained via smartphone | Age negatively related to the ease of the analysis of heart murmur | Results confirmed only on android devices using limited data (no atrial fibrillation and diastolic murmur) |
Lee and Jung21) | Heartrate | Photoplethysmogram sensor measured heartrate and transmitted the RR interval* to a personal computer | Statistically significant correlation with heartrate measurement equipment | Further miniaturization and measurement on smartphone |
Fang et al.22) | Electrocardiogram, heartrate, blood pressure, globin insulin, electroencephalogram, and so on | Device measurement and patient selfmeasurement | Designed a mobile early warning system that immediately alerts the patient's guardian, medical staff, and/or nearby hospital | After collecting data, it is necessary to identify anomalies to further develop and implement the system |
Lee et al.23) | Electrocardiogram, arterial pulse wave, pulse wave velocity, accelerated arterial pulse wave | Monitored cardiovascular system via wrist device with data sent to smartphone via Bluetooth in real time | Arterial pulse wave measurement error less than 1% | Needs future verification with many other patients |
Villamil et al.24) | Mobile electrocardiogram | Calculated cardiovascular risk with electrocardiogram data transmitted to electronic medical records | Cardiovascular risk assessed on android devices in low- and middle-income countries | Needs verification with electrocardiogram measured using 3 leads |
Shyamkumar et al.25) | Electrocardiogram, heartrate, blood pressure | - Shirt sensor (e-bro) for men and bra sensor (e-bra) for women | - Tracked chronic conditions related to autonomous nervous regulation of cardiac activity | Needs an app to check the data using a wearable sensor that monitors breathing and blood oxygen levels |
- Transmits electrocardiogram, heartrate, and blood pressure data to personal computer and smartphone | - Detected t-wave inversion | |||
Kim26) | Aging index | Detect and evaluate vascular stiffness in real time using a smartphone | Vascular stiffness monitoring provided a preventive approach | Needs verification by many other patients in more diverse environments |
Study | Data | Research purpose/method | Findings | Limitations/future work |
---|---|---|---|---|
Lee et al.18) | Blood pressure | Proposed blood pressure estimation algorithm using the relationship between blood flow and electrocardiogram results | Pulse wave velocity was strongly correlated with blood pressure | Stronger correlation with diastolic blood pressure than systolic blood pressure, which directly related to pulse wave |
Prokhorov et al.19) | Low-frequency oscillation of the pulse and blood flow (index [which may worsen during acute myocardial infarction and hypertension]) | Developed a mobile app to measure 24-hour pulse and blood flow data to assess cardiovascular status in real time, continuously record photoplethysmogram signals from the finger, and monitor synchronization of pulse and vibration of blood flow | The difference between the index s value calculated only using the photoplethysmogram and the index s value calculated on the electrocardiogram as well was less than 2% | Earlobe data for photoplethysmograms will be added |
Ahn and Cho20) | Heart sounds | Machine learning technique assessed cardiovascular disease using heart sounds obtained via smartphone | Age negatively related to the ease of the analysis of heart murmur | Results confirmed only on android devices using limited data (no atrial fibrillation and diastolic murmur) |
Lee and Jung21) | Heartrate | Photoplethysmogram sensor measured heartrate and transmitted the RR interval |
Statistically significant correlation with heartrate measurement equipment | Further miniaturization and measurement on smartphone |
Fang et al.22) | Electrocardiogram, heartrate, blood pressure, globin insulin, electroencephalogram, and so on | Device measurement and patient selfmeasurement | Designed a mobile early warning system that immediately alerts the patient's guardian, medical staff, and/or nearby hospital | After collecting data, it is necessary to identify anomalies to further develop and implement the system |
Lee et al.23) | Electrocardiogram, arterial pulse wave, pulse wave velocity, accelerated arterial pulse wave | Monitored cardiovascular system via wrist device with data sent to smartphone via Bluetooth in real time | Arterial pulse wave measurement error less than 1% | Needs future verification with many other patients |
Villamil et al.24) | Mobile electrocardiogram | Calculated cardiovascular risk with electrocardiogram data transmitted to electronic medical records | Cardiovascular risk assessed on android devices in low- and middle-income countries | Needs verification with electrocardiogram measured using 3 leads |
Shyamkumar et al.25) | Electrocardiogram, heartrate, blood pressure | - Shirt sensor (e-bro) for men and bra sensor (e-bra) for women | - Tracked chronic conditions related to autonomous nervous regulation of cardiac activity | Needs an app to check the data using a wearable sensor that monitors breathing and blood oxygen levels |
- Transmits electrocardiogram, heartrate, and blood pressure data to personal computer and smartphone | - Detected t-wave inversion | |||
Kim26) | Aging index | Detect and evaluate vascular stiffness in real time using a smartphone | Vascular stiffness monitoring provided a preventive approach | Needs verification by many other patients in more diverse environments |
The time elapsed between 2 successive R-waves of the QRS signal on the electrocardiogram and its reciprocal, the heartrate; a function of intrinsic properties of the sinus node as well as autonomic influences.