New methods of detecting atrial fibrillation

2020 ◽  
Vol 3 (56) ◽  
pp. 23-26
Author(s):  
Agnieszka Kotalczyk ◽  
Michał Mazurek ◽  
Ewa Jędrzejczyk-Patej
Keyword(s):  
Atrial Fibrillation ◽  
Heart Rate ◽  
Early Detection ◽  
Minimally Invasive ◽  
New Technologies ◽  
Ecg Monitoring ◽  
Thromboembolic Complications ◽  
Heart Rate Monitoring ◽  
Monitoring Methods ◽  
New Methods

Atrial fibrillation is known as the epidemic of the 21st century. This most common arrhythmia carries the risk of, inter alia, serious thromboembolic complications. Due to the paroxysmal nature of arrhythmia, the diagnosis of atrial fibrillation is not easy. New technologies and methods of minimally invasive, continuous ECG monitoring for early detection of arrhythmias are dynamically developing. The following article discusses new heart rate monitoring methods for the detection of atrial fibrillation.

scholarly journals Proteomic Advances in Cereal and Vegetable Crops

Molecules ◽  
2021 ◽  
Vol 26 (16) ◽  
pp. 4924
Author(s):  
Rubén Agregán ◽  
Noemí Echegaray ◽  
María López-Pedrouso ◽  
Rana Muhammad Aadil ◽  
Christophe Hano ◽  
...  
Keyword(s):  
Early Detection ◽  
New Technologies ◽  
Food Science ◽  
Vegetable Crops ◽  
Demographic Pressure ◽  
Plant Foods ◽  
New Methods ◽  
Daily Energy ◽  
The Impact

The importance of vegetables in human nutrition, such as cereals, which in many cases represent the main source of daily energy for humans, added to the impact that the incessant increase in demographic pressure has on the demand for these plant foods, entails the search for new technologies that can alleviate this pressure on markets while reducing the carbon footprint of related activities. Plant proteomics arises as a response to these problems, and through research and the application of new technologies, it attempts to enhance areas of food science that are fundamental for the optimization of processes. This review aims to present the different approaches and tools of proteomics in the investigation of new methods for the development of vegetable crops. In the last two decades, different studies in the control of the quality of crops have reported very interesting results that can help us to verify parameters as important as food safety, the authenticity of the products, or the increase in the yield by early detection of diseases. A strategic plan that encourages the incorporation of these new methods into the industry will be essential to promote the use of proteomics and all the advantages it offers in the optimization of processes and the solution of problems.

Early Detection of Symptomatic Paroxysmal Cardiac Arrhythmias by Trans-Telephonic ECG Monitoring: Impact on Diagnosis and Treatment of Atrial Fibrillation

2016 ◽  
Vol 27 (9) ◽  
pp. 1032-1037 ◽  
Author(s):  
JOHANNA ANCZYKOWSKI ◽  
STEPHAN WILLEMS ◽  
BORIS A. HOFFMANN ◽  
THOMAS MEINERTZ ◽  
STEFAN BLANKENBERG ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Early Detection ◽  
Cardiac Arrhythmias ◽  
Diagnosis And Treatment ◽  
Ecg Monitoring

scholarly journals Heartbeat Cycle Length Detection by a Ballistocardiographic Sensor in Atrial Fibrillation and Sinus Rhythm

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Matthias Daniel Zink ◽  
Christoph Brüser ◽  
Patrick Winnersbach ◽  
Andreas Napp ◽  
Steffen Leonhardt ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Heart Rate ◽  
Sinus Rhythm ◽  
Quality Index ◽  
Cycle Length ◽  
Heart Rate Monitoring ◽  
Mechanical Vibrations ◽  
Before And After ◽  
Registration Number ◽  
Novel Algorithm

Background.Heart rate monitoring is especially interesting in patients with atrial fibrillation (AF) and is routinely performed by ECG. A ballistocardiography (BCG) foil is an unobtrusive sensor for mechanical vibrations. We tested the correlation of heartbeat cycle length detection by a novel algorithm for a BCG foil to an ECG in AF and sinus rhythm (SR).Methods.In 22 patients we obtained BCG and synchronized ECG recordings before and after cardioversion and examined the correlation between heartbeat characteristics.Results.We analyzed a total of 4317 heartbeats during AF and 2445 during SR with a correlation between ECG and BCG during AF ofr=0.70(95% CI 0.68–0.71,P<0.0001) andr=0.75(95% CI 0.73–0.77,P<0.0001) during SR. By adding a quality index, artifacts could be reduced and the correlation increased for AF to 0.76 (95% CI 0.74–0.77,P<0.0001,n=3468) and for SR to 0.85 (95% CI 0.83–0.86,P<0.0001,n=2176).Conclusion.Heartbeat cycle length measurement by our novel algorithm for BCG foil is feasible during SR and AF, offering new possibilities of unobtrusive heart rate monitoring. This trial is registered with IRB registration number EK205/11. This trial is registered with clinical trials registration numberNCT01779674.

scholarly journals Features of Structural and Functional Changes in the Heart in Elderly Patients with Coronary Heart Disease and Atrial Fibrillation

2020 ◽  
Vol 16 (4) ◽  
pp. 536-541
Author(s):  
L. I. Folomeeva ◽  
E. V. Filippov
Keyword(s):  
Atrial Fibrillation ◽  
Heart Rate ◽  
Elderly Patients ◽  
Left Atrium ◽  
Age Group ◽  
Supraventricular Arrhythmias ◽  
Ecg Monitoring ◽  
Functional Changes ◽  
Group 3 ◽  
Group 1

Supraventricular arrhythmias, including atrial fibrillation (AF), are a current problem for patients in the older age group due to the possibility of lifethreatening complications. Elderly patients have pre-conditions for the development of supraventricular rhythm disturbances (age-related structural and functional changes in the myocardium, concomitant diseases).Aim. To study the features of structural and functional changes in the myocardium of the left heart in elderly patients, depending on the presence of supraventricular arrhythmias.Material and methods. The cross-sectional study included 200 individuals aged 60 to 89 years. All participants underwent echocardiographic examination and 24-hour electrocardiogram (ECG) monitoring. The patients of the study cohort were divided into 3 groups: group 1 consisted of patients with coronary heart disease (CHD) without heart rhythm disturbances (n=80); group 2 consisted of patients with CHD and paroxysmal AF (n=40); group 3 consisted of patients with CHD and supraventricular extrasystoles (n=40). The control group consisted of patients of the older age group without CHD and rhythm disturbances (n=40).Results. In patients with paroxysmal AF and frequent supraventricular extrasystoles, large sizes of the left atrium were revealed (anteroposterior dimension: 4.30±0.07 and 4.12±0.12 cm; upper-lower: 6.15±0.03 and 5.96±0.10 cm; medial-lateral: 4.15±0.11 and 3.87±0.09 cm, respectively). In patients with CHD and rhythm disturbances, the presence of a combined increase in the size of the left atrium and a decrease in myocardial contractility was revealed (ejection fraction of the left atrium in groups 2 and 3 – 27.2±0.1% and 27.9±0.1%, respectively, vs 36.3±0.1% and 38.20±0.02%, respectively in group 1 and control). The duration of ischemic changes during 24-hour ECG monitoring was also greater in group 3 compared with groups 1 and 2 (249.6 vs 27.1 and 66.4 min, respectively). In groups 2 and 3, a discordant effect of the sympathetic and parasympathetic nervous systems on heart rate variability was revealed.Conclusion. For elderly patients, morphological and functional changes are characteristic, which consist in the restructuring of the myocardium and changes in heart rate variability with a prevalence of the sympathetic part of the autonomic nervous system.

Continuous heart rate monitoring for automatic detection of atrial fibrillation with novel bio-sensing technology

2019 ◽  
Vol 52 ◽  
pp. 23-27 ◽  
Author(s):  
Aviram Hochstadt ◽  
Ehud Chorin ◽  
Sami Viskin ◽  
Arie Lorin Schwartz ◽  
Natan Lubman ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Heart Rate ◽  
Automatic Detection ◽  
Heart Rate Monitoring ◽  
Sensing Technology

scholarly journals The Polar® OH1 Optical Heart Rate Sensor is Valid during Moderate-Vigorous Exercise

2018 ◽  
Vol 02 (03) ◽  
pp. E67-E70 ◽  
Author(s):  
Matthew Schubert ◽  
Amy Clark ◽  
Annie De La Rosa
Keyword(s):  
Heart Rate ◽  
Repeated Measures ◽  
New Technologies ◽  
Heart Rate Monitoring ◽  
Vigorous Exercise ◽  
Typical Error ◽  
Yoga Class ◽  
Main Effect ◽  
Mean Differences ◽  
Rate Sensor

Abstract Purpose Traditional heart-rate monitoring through the use of electrocardiograms or chest-worn heart rate sensors can be challenging in certain sports or in field settings. New technologies, such as photoplethysmography (PPG), have enabled heart-rate monitoring at alternate sites. However, to date, the accuracy and validity of various PPG sensors has not been examined in detail. The purpose of the present investigation was to determine the validity of an arm-worn PPG sensor during yoga sequences. Methods Fifteen college-aged men and women participated in a ~45 min power vinyasa yoga class. During the class, participants wore Polar® H7 chest straps and RCX3 receivers (criterion) and Polar® OH1 arm bands on their upper right arm (practical). Mean differences were compared via a paired t-test, heart rate during yoga using a time*device repeated measures ANOVA, and agreement assessed with Bland-Altman analysis. Results Mean heart rates during yoga were not different (mean difference=0.76, 95% CI: –0.54 to 2.06; p=0.229). Yoga created a main effect of time on heart rate (p<0.0001), but there was no difference between devices (p=0.86) or interaction (p=0.90). Mean bias±95% limits of agreement was 0.76±1.30 bpm, with a typical error of 2.42±1.49 bpm and a coefficient of variation of 1.8±1.5%. Conclusions Results of the present investigation revealed that the Polar® OH1 is a valid measure of heart rate during moderate-vigorous exercise. Future validation studies should consider other exercise modes and participant characteristics.

scholarly journals Applicability of a Novel Wearable Wireless Electrocardiogram Monitoring Device (Spyder) for Arrhythmia Detection in Patients with Suspected Cardiac Arrhythmias

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Do Van Chien ◽  
Nguyen Thanh Binh ◽  
Nguyen Dung ◽  
Pham Truong Son
Keyword(s):  
Atrial Fibrillation ◽  
Supraventricular Tachycardia ◽  
Cardiac Arrhythmias ◽  
Cryptogenic Stroke ◽  
Premature Ventricular Contraction ◽  
Monitoring Device ◽  
Ecg Monitoring ◽  
Monitoring Methods ◽  
New Device ◽  
Recurrent Atrial Fibrillation

Introduction. In clinical practice, many cardiovascular symptoms can be caused by arrhythmias that are not detected by electrocardiography (ECG) or 24–48 h Holter ECG monitoring. Aims. To describe the efficacy and applicability of a new device (Spyder) in detecting cardiac arrhythmias with midterm ECG monitoring. Methods. A descriptive, prospective study was performed on 26 consecutive patients who underwent midterm ECG monitoring with the novel ECG patch device (Spyder). The study was conducted over a 6-month period from August 2020 to February 2021. Results. Twenty-six patients (mean age, 57.8 ± 12.5 years; men, 77%) wearing a Spyder wireless ECG-monitoring device were recruited. The mean wearing time was 84 hours. The main indications for using the device were detection of recurrent atrial fibrillation after radiofrequency ablation (30.7%) and screening for atrial fibrillation after cryptogenic stroke (23.1%). All ECG monitor recordings obtained during the study period were of good quality. The device detected 12 episodes of atrial fibrillation in eight patients, one episode of ventricular tachycardia, one supraventricular tachycardia event, one case of paroxysmal third-degree atrioventricular block, and five cases of frequent premature ventricular contraction. The time to detection of the first episodes of atrial fibrillation and ventricular and supraventricular tachycardia was 28.8 and 47 hours, respectively. Conclusions. The new wearable wireless ECG-monitoring device (Spyder) is a feasible and effective method for the detection of cardiac arrhythmias.

Energy expenditure in lactating women: a comparison of doubly labeled water and heart-rate-monitoring methods

1993 ◽  
Vol 57 (4) ◽  
pp. 512-518 ◽  
Author(s):  
C A Lovelady ◽  
C N Meredith ◽  
M A McCrory ◽  
L A Nommsen ◽  
L J Joseph ◽  
...  
Keyword(s):  
Heart Rate ◽  
Energy Expenditure ◽  
Doubly Labeled Water ◽  
Heart Rate Monitoring ◽  
Monitoring Methods ◽  
Lactating Women
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