Automated arrhythmia classification based on a combination network of CNN and LSTM

This study proposed an approach based on deep learning that combined convolutional neural networks (CNNs) and long short-term memory networks (LSTM) to automatically identify six types of ECG signals: normal (N) sinus rhythm segments, atrial fibrillation (AFIB), ventricular bigeminy (B), pacing rhythm (P), atrial flutter (AFL), and sinus bradycardia (SBR). The proposed network applied a multi-input structure to process 10 s ECG signal segments and corresponding RR intervals from the MIT-BIH arrhythmia database. With a five-fold cross-validation strategy, this network achieved 99.32 % accuracy. Then, the diversity of the subjects was increased in the training data by supplementing database, improving the previous network model. The method was validated using two additional databases, which are independent of the training database of the network. For the new N and AFIB in additional databases, the proposed method achieved an average accuracy of 97.15 %. The results showed that the proposed model had robust generalization performance and could be used as an auxiliary tool to help clinicians diagnose arrhythmia after training with a larger database.
Source: Biomedical Signal Processing and Control - Category: Biomedical Science Source Type: research

Related Links:

This study is divided into two stages: (a) a systematic review carried out following the Preferred Reporting Items for a Systematic Review and Meta-analysis of Diagnostic Test Accuracy Studies (PRISMA-DTA) statement in six databases, in order to identify the features of the PPG signal reported in the literature for the detection of AF, and (b) an experimental evaluation of them, using machine learning, in order to determine which have the greatest influence on the process of detecting AF. Forty-four features were found when analyzing the signal in the time, frequency, or time–frequency domains. From those 44 feat...
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Article Source Type: research
AbstractBackgroundWe have previously demonstrated the feasibility of a nurse ‐led risk factor modification (RFM) program for improving weight loss and obstructive sleep apnea (OSA) care among atrial fibrillation (AF) patients.ObjectiveWe now report its impact on arrhythmia outcomes in a subgroup of patients undergoing catheter ablation.MethodsParticipating patients with obesity and/or need for OSA management (high ‐risk per Berlin Questionnaire or untreated OSA) underwent in‐person consultation and monthly telephone calls with the nurse for up to 1 year. Arrhythmias were assessed by office ECGs and ≥2 wearable mon...
Source: Journal of Cardiovascular Electrophysiology - Category: Cardiology Authors: Tags: ORIGINAL ARTICLE Source Type: research
Publication date: January 2020Source: Archives of Cardiovascular Diseases Supplements, Volume 12, Issue 1Author(s): M. Drissa, H. Jamila, H. DrissaBackgroundAtrial septal defect (ASD) is one of the most common causes of congenital heart disease manifested in adulthood and a subgroup of patients may not develop symptoms until late adulthood.Aim of studyThe aim of our study was to describe clinical and likelihood picture of adults over 60 years born with an ASD type II.MethodsWe performed a retrospective analysis of adult's ASD referred to our institution from 2010 through 2018. Clinical, electrocardiographic, echocardiograp...
Source: Archives of Cardiovascular Diseases Supplements - Category: Cardiology Source Type: research
Abstract Atrial fibrillation is the most common cardiac arrhythmia in western society affecting more than 35 million individuals worldwide annually. It is a common postoperative complication and may also occur spontaneously during general and local anesthesia administration. Aging, diabetes mellitus, hypertension, and cardiovascular diseases including cardiomyopathies, congenital cardiac anomalies, heart failure, myocardial ischemia, pericarditis, previous cardiac surgery, vascular disease, and valvular heart disease are some correlated factors. Beyond age, increased incidence of atrial fibrillation has been corre...
Source: Annals of Cardiac Anaesthesia - Category: Anesthesiology Authors: Tags: Ann Card Anaesth Source Type: research
AliveCor is close to our hearts. Literally. David Albert, the co-founder of the company, started experimenting with handheld, wireless ECG devices in the late 90s. Approximately 10 years later we tried out their FDA-cleared, medical grade gadget. It was a truly inspiring moment. Needless to say, we’ve been keeping track of their journey ever since. In our eyes Kardia is the textbook example of technology shaping health care, empowering and supporting not only e-patients, but medical professionals as well. So, let’s take a look at their newest creation, the KardiaMobile6L! Why did the chicken cross the ro...
Source: The Medical Futurist - Category: Information Technology Authors: Tags: Health Sensors & Trackers cardiology ecg fda Healthcare heart technology Source Type: blogs
Discussion From Beth Israel Deaconess Medical Center. Ann Intern Med. 2019 Dec 03;171(11):828-836 Authors: Burns RB, Zimetbaum P, Lubitz SA, Smetana GW Abstract Atrial fibrillation (AFib) is the most common type of cardiac arrhythmia, affecting 2.7 million to 6.1 million persons in the United States. Although some persons with AFib have no symptoms, others do. For those without symptoms, AFib may be detected by 12-lead electrocardiogram (ECG), single-lead monitors (such as ambulatory blood pressure monitors and pulse oximeters), or consumer devices (such as wearable monitors and smartphones). Pulse pa...
Source: Annals of Internal Medicine - Category: Internal Medicine Authors: Tags: Ann Intern Med Source Type: research
In conclusion, T2D impairs vascular function by dysregulated autophagy. Therefore, autophagy could be a potential target for overcoming diabetic microvascular complications. To What Degree Does Loss of Skeletal Muscle with Age Contribute to Immunosenescence? https://www.fightaging.org/archives/2019/11/to-what-degree-does-loss-of-skeletal-muscle-with-age-contribute-to-immunosenescence/ Sarcopenia, the progressive loss of muscle mass and strength, is characteristic of aging. A perhaps surprisingly large fraction of the losses can be averted by strength training, but there are nonetheless inexorable process...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
In this study, we sought to assess the prevalence of AF in patients with clinically undetected isolated cardiac amyloidosis (ICA) detected at autopsy and identify electrocardiographic (EKG) markers of such amyloid deposits. A total of 1083 patients were included in the study and 3.1% of patients were found to have asymptomatic ICA. Patients with ICA were older and had a higher odds of AF independent of age and CHA2DS2VASc score. Amongst patients with AF, those with ICA were more likely to have persistent forms of AF and had a lower sinus rhythm P-wave amplitude. Further studies are required to further define this entity, i...
Source: Fight Aging! - Category: Research Authors: Tags: Medicine, Biotech, Research Source Type: blogs
Conclusions: Patients with elevated preoperative RAP and long-term ventilator care had a higher risk of AA after LT. Further, AA after LT was associated with poor long-term survival. PMID: 31752476 [PubMed - as supplied by publisher]
Source: The Korean Journal of Internal Medicine - Category: Internal Medicine Authors: Tags: Korean J Intern Med Source Type: research
In this study, ECGs were evaluated before and after the usage of salbutamol and ipratropium bromide. Patients were evaluated before and after 4 weeks of treatment :1) salbutamol, 90 mcg 1 puffs every 4 hours 2) Ipratropium Bromide, 34 mcg 2 puffs every 6 hours. ECGs performed pre-treatment and at 4th Week. We were able to find various arrhythmias such as atrial tachycardia, atrial fibrillation and ventricular tachycardia. 60 ECGs recordings in 30 treated patients (M=F). Out of 30 patients, ECG changes recorded in 28 patients. The most common met ECG was with atrial tachycardia in 20 patients out of which 12 were females (6...
Source: European Respiratory Journal - Category: Respiratory Medicine Authors: Tags: Airway pharmacology and treatment Source Type: research
More News: Arrhythmia | Atrial Fibrillation | Biomedical Science | Databases & Libraries | Electrocardiogram | Learning | Study | Training | Universities & Medical Training