System for Continuous and Prolonged Ambulatory ECG Monitoring with Hosting and Visualization on the Cloud

2021 ◽  
Vol 10 (1) ◽  
pp. 57
Author(s):  
Daniel Cuevas-González ◽  
Juan Pablo García-Vázquez ◽  
Miguel Bravo-Zanoguera ◽  
Roberto López-Avitia ◽  
Marco A. Reyna ◽  
...  
Keyword(s):  
Health Care ◽  
Sampling Rate ◽  
Cloud Services ◽  
Ecg Signal ◽  
Ecg Monitoring ◽  
Ambulatory Ecg ◽  
Ambulatory Ecg Monitoring ◽  
Access Information ◽  
Electrocardiogram Ecg ◽  
Small File

In this paper, we propose investigating the ability to integrate a portable Electrocardiogram (ECG) device to commercial platforms to analyze and visualize information hosted in the cloud. Our ECG system based on the ADX8232 microchip was evaluated regarding its performance of recordings of a synthetic ECG signal for periods of 1, 2, 12, 24, and 36 h on six different cloud services to investigate whether it maintains reliable ECG records. Our results show that there are few cloud services capable of 24 h or longer ECG recordings. But some existing services are limited to small file sizes of less than 1,000,000 lines or 100 MB, or approximately 45 min of an ECG recording at a sampling rate of 360 Hz, making it difficult an extended time monitoring. Cloud platforms reveal some limitations of storage and visualization in order to provide support to health care specialists to access information related to a patient at any time.

Ambulatory ECG Monitoring in Atrial Fibrillation Management

2013 ◽  
Vol 56 (2) ◽  
pp. 143-152 ◽  
Author(s):  
Spencer Z. Rosero ◽  
Valentina Kutyifa ◽  
Brian Olshansky ◽  
Wojciech Zareba
Keyword(s):  
Atrial Fibrillation ◽  
Ecg Monitoring ◽  
Ambulatory Ecg ◽  
Ambulatory Ecg Monitoring

Can Changes in S Wave Amplitude be Used to Detect Ischaemia during Ambulatory ECG Monitoring?

1986 ◽  
Vol 70 (s13) ◽  
pp. 1P-1P
Author(s):  
J.J. Glazier ◽  
S. Chierchia ◽  
A. Maseri
Keyword(s):  
Wave Amplitude ◽  
Ecg Monitoring ◽  
S Wave ◽  
Ambulatory Ecg ◽  
Ambulatory Ecg Monitoring

Continuous ambulatory ECG monitoring during fluorouracil therapy: a prospective study.

1989 ◽  
Vol 7 (4) ◽  
pp. 509-514 ◽  
Author(s):  
S Rezkalla ◽  
R A Kloner ◽  
J Ensley ◽  
M al-Sarraf ◽  
S Revels ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Cardiac Toxicity ◽  
Ecg Monitoring ◽  
Ecg Changes ◽  
Ambulatory Ecg ◽  
Ambulatory Ecg Monitoring ◽  
St Segment ◽  
Artery Disease ◽  
A Prospective Study

Although there have been anecdotal reports of cardiac toxicity associated with fluorouracil (5-FU) therapy, this phenomenon has not been studied in a systematic fashion. We prospectively performed continuous ambulatory ECG monitoring on 25 patients undergoing 5-FU infusion for treatment of solid tumors in order to assess the incidence of ischemic ST changes. Patients were monitored for 23 +/- 4 hours before 5-FU infusion, and 98 +/- 9 hours during 5-FU infusion. Anginal episodes were rare: only one patient had angina (during 5-FU infusion). However, asymptomatic ST changes (greater than or equal to 1 mm ST deviation) were common: six of 25 patients (24%) had ST changes before 5-FU infusion v 17 (68%) during 5-FU infusion (P less than .002). The incidence of ischemic episodes per patient per hour was 0.05 +/- 0.02 prior to 5-FU infusion v 0.13 +/- 0.03 during 5-FU infusion (P less than .001); the duration of ECG changes was 0.6 +/- 0.3 minutes per patient per hour before 5-FU v 1.9 +/- 0.5 minutes per patient per hour during 5-FU (P less than .01). ECG changes were more common among patients with known coronary artery disease. There were two cases of sudden death, both of which occurred at the end of the chemotherapy course. We conclude that 5-FU infusion is associated with a significant increase in silent ST segment deviation suggestive of ischemia, particularly among patients with coronary artery disease. The mechanism and clinical significance of these ECG changes remain to be determined.

Predictors of left ventricular scar at cardiac magnetic resonance in athletes with apparently idiopathic ventricular arrhythmias

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
A Zorzi ◽  
C Crescenzi ◽  
T Vessella ◽  
A Cipriani ◽  
G Panattoni ◽  
...  
Keyword(s):  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Exercise Testing ◽  
Ventricular Arrhythmias ◽  
Left Ventricular ◽  
Consecutive Series ◽  
Ecg Monitoring ◽  
Ambulatory Ecg ◽  
Ambulatory Ecg Monitoring ◽  
Response To Exercise

Abstract Introduction In athletes with ventricular arrhythmias (VA) and otherwise unremarkable clinical findings, cardiac magnetic resonance (CMR) may reveal concealed pathological substrates. The aim of this multicentre study was to evaluate which VA characteristics were associated with CMR abnormalities. Methods We enrolled a consecutive series of 251 competitive athletes (74% males, mean age 28.5±14.5 years) who underwent CMR for evaluation of VA. We included athletes with >100 premature ventricular beats (PVBs)/24-hour or ≥1 repetitive VA (couplets, triplets or non-sustained ventricular tachycardia) on 12-lead 24-hour ambulatory ECG monitoring and negative family history, electrocardiogram and echocardiogram. Features of VA that were evaluated included number, morphology, repetitivity and response to exercise testing. Results Left-ventricular late gadolinium-enhancement (LGE) was documented in 28 (11%) athletes, mostly (N=25) with a subepicardial/midmyocardial (non-ischemic) distribution. On 24-hour ECG monitoring, PVBs with a right-bundle-branch-block and intermediate/superior axis configuration or multiple morphologies were documented in 24/28 (86%) athletes with versus 55/223 (25%) without LGE (p<0.001). More than 2000 PVBs were recorded in 6 (21%) athletes with versus 127 (57%) without positive CMR (p<0.001). At exercise testing, repetitive VA occurred at high work-load in 12 (43%) athletes with versus 26 (12%) without LGE (p<0.001). At multivariable analysis, all three VA features independently correlated with CMR abnormalities. Conclusions In athletes with apparently idiopathic VA, simple characteristics such as number and morphology of PVBs on 12-lead 24-hour ambulatory ECG monitoring and response to exercise testing predicted the presence of concealed myocardial abnormalities on CMR. These findings may help cost-effective CMR prescription. Flow chart Funding Acknowledgement Type of funding source: None

scholarly journals Design and Implementation of a Low Cost Wireless Ambulatory ECG Monitoring System for Deployment in Rural Communities

2019 ◽  
Vol 15 (15) ◽  
pp. 57
Author(s):  
Hassan Ali ◽  
Ben Ernest Villaneouva ◽  
Raziq Yaqub
Keyword(s):  
Rural Communities ◽  
Real Time ◽  
Monitoring System ◽  
Low Cost ◽  
Ecg Monitoring ◽  
Ecg Signals ◽  
Design And Implementation ◽  
Ambulatory Ecg ◽  
Ambulatory Ecg Monitoring ◽  
Ecg Data

Due to the rising number of heart patients and the apparent need for more robust electrocardiogram (ECG) monitoring of these patients, hospitals are increasingly investing in typical cloud technology or centralized hospital server based remote ECG monitoring systems. However, the deployment these systems in rural communities is limited due to the high cost factor. To counter this challenge, in this paper, we focus on the design and implementation of a low cost real time wireless ambulatory ECG monitoring system. The detected ECG signals are first filtered and amplified and then digitally converted by a microcontroller. The digitized ECG signals are then sent over a ZigBee wireless link to a gateway personal computer (PC) at patient’s premises. The received ECG data from the ZigBee connection is displayed in real time via the National Instruments (NI) Laboratory Virtual Instrument Engineering Workbench (LabVIEW) user interface on the PC for instant personalized evaluation of the ECG data. The ECG data can be saved on the PC and sent via email to a remote cardiologist or a clinician. Additionally, the gateway PC at patient’s end acts as web server for sharing patient’s data over the Internet.  The remote off-site physician (medical staff in a hospital) can use a web browser on a PC, laptop or a mobile phone with Internet connection to access patient’s real time ECG trace for monitoring, expert review and diagnosis. It is shown that the system prototype allows users to acquire reliable ECG signals effectively and simply. The proposed ambulatory ECG system offers an alternative low cost deployment strategy and is especially suited for remote cardiac monitoring of patients in rural communities.

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