Results 51 to 60 of about 38,214 (275)

Fragmented narrow QRS complex: Predictor of left ventricular dyssynchrony in non-ischemic dilated cardiomyopathy

open access: yesIndian Heart Journal, 2013
Background: Cardiac resynchronization therapy is an important therapeutic modality in drug refractory symptomatic patients of heart failure with wide QRS (≥120 ms) on electrocardiogram. However, wide QRS (considered as a marker of electrical dyssynchrony)
Jamal Yusuf   +5 more
doaj   +1 more source

Fragmented QRS – Its significance

open access: yesIndian Pacing and Electrophysiology Journal, 2020
Fragment QRS (fQRS) complex is a myocardial conduction abnormality that indicates myocardial scar. It is defined as additional notches in the QRS complex. Though initially fQRS was defined in the setting of normal QRS duration (
R.N. Supreeth, Johnson Francis
doaj   +1 more source

Spatial distribution of physiologic 12-lead QRS complex

open access: yesScientific Reports, 2021
The normal physiologic range of QRS complex duration spans between 80 and 125 ms with known differences between females and males which cannot be explained by the anatomical variations of heart sizes. To investigate the reasons for the sex differences as
Katerina Hnatkova   +9 more
doaj   +1 more source

Dynamics of Holter electrocardiogram monitoring in patients with chronic heart failure and atrial fibrillation on the background of cardiac contractility modulation

open access: yesТерапевтический архив, 2021
Aim. To evaluate the dynamics of cardiac arrhythmias on the background of cardiac contractility modulation (MCC) in patients with chronic heart failure (CHF) and various forms of atrial fibrillation (AF) on the basis of daily electrocardiogram (ECG ...
Alfiya A. Safiullina   +5 more
doaj   +1 more source

Unsupervised Heart-rate Estimation in Wearables With Liquid States and A Probabilistic Readout

open access: yes, 2017
Heart-rate estimation is a fundamental feature of modern wearable devices. In this paper we propose a machine intelligent approach for heart-rate estimation from electrocardiogram (ECG) data collected using wearable devices.
Adiraju, Prathyusha   +9 more
core   +1 more source

Hump‐Shaped Relationship Between Microbial Carbon Use‐Efficiency and Soil Organic Carbon in Alpine Grasslands

open access: yesAdvanced Science, EarlyView.
On the Qinghai–Tibetan Plateau, microbial carbon use efficiency (CUE) peaks at intermediate soil organic carbon levels and declines thereafter. In carbon‐rich soils, the formation of stable mineral‐associated organic carbon is decoupled from microbial CUE.
Yuting Wang   +8 more
wiley   +1 more source

ECG Signal Classification Using MODWT and CNN for Early Detection of Cardiac Abnormalities

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems)
Accurate classification of ECG signals is crucial for the early detection of cardiac abnormalities. This study proposes a method that integrates Maximal Overlap Discrete Wavelet Transform (MODWT) for feature extraction with a Convolutional Neural Network
Mohammad Yusuf Hamadani   +2 more
doaj   +1 more source

Systematic Benchmarking of a Noise‐Tolerant Conductive Hydrogel Electrode for Epidermal Bioelectronics

open access: yesAdvanced Science, EarlyView.
General schematic of the approach. Abstract Conventional Silver/Silver Chloride (Ag/AgCl) electrodes remain the clinical standard for electrophysiological monitoring but are hindered by poor skin conformity, mechanical rigidity, and signal degradation, particularly under motion or sweat.
Nazmi Alsaafeen   +11 more
wiley   +1 more source

Fetal Heart Rate estimation on non Invasive ECG

open access: yesTecnoLógicas, 2013
This paper describes a method for locating QRS complex in noninvasive FECG, using techniques based on MECG cancellation, and Principal Component Analysis.
Luis O. Sarmiento-Alvarez   +3 more
doaj  

Time-critical AMI Detection: A novel and fast technique using the 12-lead ECG

open access: yesJournal of Acute Disease, 2014
Objective: To postulates a quick and relatively easy way to quantify the mass of viable myocardium in patients presenting with acute chest pain in the emergency department (ED). Methods: The area under the QRS complex of a patient's ECG was postulated to
Fatimah Lateef
doaj   +1 more source

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