A Novel Point-of-Care Smartphone Based System for Monitoring the Cardiac and Respiratory Systems

Sohn, Kwanghyun; Merchant, Faisal M.; Sayadi, Omid; Puppala, Dheeraj; Doddamani, Rajiv; Sahani, Ashish Kumar; Singh, Jagmeet P.; Heist, E. Kevin; Isselbacher, Eric M.; Armoundas, Antonis A.

doi:10.1038/srep44946

Cited by 27 publications

(23 citation statements)

References 33 publications

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“…This is supported by the data that antihypertension drug adherence is only 20%‐80% worldwide and 61% in Korea . To overcome this poor adherence rate, some measures are being developed, like devices for drug intake alarms, drug reminder applications in smartphones, and traditional drug holder cases . However, these are indirect forms of aiding drug intake external to the patients, that is, controlling the person by artificial tools, but not by the person's inner motivation.…”

Section: Discussionmentioning

confidence: 99%

Self‐blood pressure monitoring is associated with improved awareness, adherence, and attainment of target blood pressure goals: Prospective observational study of 7751 patients

Kim

Park

et al. 2019

J of Clinical Hypertension

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A large-scale, cross-sectional study incorporating data from various countries around the world, including both low-and high-income subjects, showed that the prevalence of hypertension (HTN) was 40.8% in 142 042 participants, but only 46.5% were aware of the diagnosis criteria, and 32.5% had controlled blood pressure (BP), despite the high rate (87.5%) of pharmaceutical treatment. 1 Low BP control could be attributed to poor medication adherence and patients' ignorance on the importance of HTN, as well as therapeutic inertia by physicians. To overcome this, many approaches have been attempted including self-blood pressure monitoring (SBPM). However, this has demonstrated mixed results on HTN control. 2-5 Some meta-analyses including small-sized studies have also shown inconsistent results. 2,5 These conflicting data may partly be attributed to the diversity of socio-economic levels and racial differences of the participants and combined other interventions on top of SBPM as well as small sample size.We performed this nationwide large-scale prospective observational study involving general hospitals and local clinics to examine AbstractWe investigated whether self-blood pressure monitoring (SBPM) can improve the control rate of blood pressure (BP), adherence of antihypertensive medications, and the awareness of the importance of BP control in hypertensive patients. A total of 7751 patients who visited the outpatient clinics of private and university hospitals in Korea were given automatic electronic BP monitors and were recommended to measure their BP daily at home for 3 months. Changes in office BP, attainment of target BP, adherence to taking antihypertensive drugs, and awareness of BP were compared before and after SBPM. Patients and physicians were surveyed on their perception of BP and SBPM. Mean BP significantly decreased from 142/88 to 129/80 mm Hg (P < .001), and attainment of the target BP increased from 32% to 59% (P < .001) after SBPM. Drug non-adherence, which was defined as patient's not taking medication days per week, decreased significantly from 0.86 days to 0.53 days (P < .001).The rate of awareness of the BP goal increased from 57% to 81% (P < .001). Patients estimated that their mean BP was 125/81 mm Hg, but their actual mean BP was 142/88 mm Hg. Awareness about the importance of SBPM increased from 90% to 98%. The rate of SBPM ≥ once per week further increased, from 34% to 96%. In conclusion, SBPM is associated with reduced BP, better BP control rate, greater drug adherence, and improved perception of BP by the patients.

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Section: Discussionmentioning

confidence: 99%

Self‐blood pressure monitoring is associated with improved awareness, adherence, and attainment of target blood pressure goals: Prospective observational study of 7751 patients

Kim

Park

et al. 2019

J of Clinical Hypertension

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“…The only ECG approach to obtain BR is described in [Sohn et al 2017]. This work consists in monitoring ECG signals from the torso and then sending them to a smartphone via Bluetooth.…”

Section: Ecg (Electrocardiographic)mentioning

confidence: 99%

Methods for Breathing Rate Measurement through Mobile Platform: a Review

Lemos

Siebra

2019

Anais Do Simpósio Brasileiro De Computação Aplicada À Saúde (SBCAS 2019)

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Breathing rate is a vital sign that can indicate someone’s health status and even detect early diseases. Mobile health applications might become the main tool for estimating breathing rate out of the clinical environment. In this research, a review of the literature is conducted, aiming at finding out the most recent researches that have been proposed as solutions for respiratory measurement or monitoring using mobile devices. We discuss and compare their methods, highlighting pros and cons regarding ubiquity and feasibility. The results indicate that the combination of methods is a key aspect to improve measurements.

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“…SpO2 monitoring is an important vital sign in evaluating and monitoring the cardio-pulmonary function of both in-hospital and out-of-hospital patients [2][3][4]. As the average age of the US population increases and chronic conditions are becoming more prevalent, there is a need to improve the effectiveness of disease prevention, to enhance access to healthcare, and to sustain healthy independent living [5][6][7][8]. Mobile health technologies are expected to function Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Design Implementation and Evaluation of a Mobile Continuous Blood Oxygen Saturation Monitoring System

Zhang

Arney

Goldman

et al. 2020

Sensors

Self Cite

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Objective: In this study, we built a mobile continuous Blood Oxygen Saturation (SpO2) monitor, and for the first time, explored key design principles towards daily applications. Methods: We firstly built a customized wearable computer that can sense two-channel photoplethysmogram (PPG) signals, and transmit the signals wirelessly to smartphone. Afterwards, we explored many SpO2 model building principles, focusing on linear/nonlinear models, different PPG parameter calculation methods, and different finger types. Moreover, we further compared PPG sensor placement principles by comparing different hand configurations and different finger configurations. Finally, a dataset collected from eleven human subjects was used to evaluate the mobile health monitor and explore all of the above design principles. Results: The experimental results show that the root mean square error of the SpO2 estimation is only 1.8, indicating the effectiveness of the system. Conclusion: These results indicate the effectiveness of the customized mobile SpO2 monitor and the selected design principles. Significance: This research is expected to facilitate the continuous SpO2 monitoring of patients with clinical indications.

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A Novel Point-of-Care Smartphone Based System for Monitoring the Cardiac and Respiratory Systems

Cited by 27 publications

References 33 publications

Self‐blood pressure monitoring is associated with improved awareness, adherence, and attainment of target blood pressure goals: Prospective observational study of 7751 patients

Self‐blood pressure monitoring is associated with improved awareness, adherence, and attainment of target blood pressure goals: Prospective observational study of 7751 patients

Methods for Breathing Rate Measurement through Mobile Platform: a Review

Design Implementation and Evaluation of a Mobile Continuous Blood Oxygen Saturation Monitoring System

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