Results 231 to 240 of about 1,220,201 (270)
European Heart Journal Cardiovascular Imaging, 2022 International audienceAims: Hypertrophic cardiomyopathy (HCM) may be associated with very narrow QRS, while left ventricular hypertrophy (LVH) may increase QRS duration. We investigated the relationships between QRS duration and LV mass (LVM) in subtypes
Maxime Beneyto, Anne Rollin
exaly +2 more sources
Determinants of QRS duration in patients with tetralogy of Fallot after pulmonary valve replacement [PDF]
Journal of Cardiac Surgery, 2021 Background Following the repair of TOF patients may be left with pulmonary regurgitation and a dilated right ventricle (RV), which in turn can lead to ventricular arrhythmias and sudden death.
Massimo Caputo +2 more
exaly +2 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
American Heart Journal, 1957
Abstract 1. 1. Total QRS duration, from earliest to latest deflections of ventricular activation (depolarization), is not measurable in limb leads, due to isoelectric projection of early or late parts of the spatial QRS vector loop. 2. 2.
H W, BLACKBURN, E, SIMONSON
openaire +2 more sources
Abstract 1. 1. Total QRS duration, from earliest to latest deflections of ventricular activation (depolarization), is not measurable in limb leads, due to isoelectric projection of early or late parts of the spatial QRS vector loop. 2. 2.
H W, BLACKBURN, E, SIMONSON
openaire +2 more sources
American Journal of Critical Care, 2004
Scenario: This 12-lead ECG waveform was obtained in a patient transferred to the intensive care unit from the general medicine floor because of acute shortness of breath. The patient has a history of chronic obstructive pulmonary disease, hypertension, coronary artery disease, and prior myocardial infarction (MI).
Michele M, Pelter, Mary G, Adams
openaire +2 more sources
Scenario: This 12-lead ECG waveform was obtained in a patient transferred to the intensive care unit from the general medicine floor because of acute shortness of breath. The patient has a history of chronic obstructive pulmonary disease, hypertension, coronary artery disease, and prior myocardial infarction (MI).
Michele M, Pelter, Mary G, Adams
openaire +2 more sources
The measurement of the duration of the QRS interval
American Heart Journal, 1952Abstract 1. 1. The difficulties of an exact and objective determination of the QRS duration are discussed in detail. 2. 2. The QRS complex usually has an isoelectric initial or terminal portion in some leads; the leads where QRS begins earliest are often not the same leads where it ends latest.
E, LEPESCHKIN, B, SURAWICZ
openaire +2 more sources
Rethinking QRS Duration as an Indication for CRT
Journal of Cardiovascular Electrophysiology, 2011Cardiac resynchronization therapy (CRT), radiofrequency ablation for atrial fibrillation,1,2 and the invasive management of ventricular tachycardia are likely the 3 major changes that have impacted cardiac electrophysiology practice over the last 2 decades.
Smita, Mehta, Samuel J, Asirvatham
openaire +2 more sources
On the variability of QRS time-duration in magnetocardiographic recordings
Journal of Medical Engineering & Technology, 2003High resolution electrocardiography (HRECG) recordings have already shown an increased beat-to-beat microvariability of the QRS duration of the terminal QRS in patients with a history of ventricular tachycardia (VT). The purpose of this study is to detect QRS-duration microvariability with magnetocardiographic (MCG) recordings in normals, patients with
B G, Schless +4 more
openaire +2 more sources
QRS duration in chronic obstructive lung disease
Journal of Electrocardiology, 1974Summary The QRS complex of the electrocardiogram of patients with chronic obstructive lung disease (COLD) seemed to be of briefer duration (narrower) than the QRS of other patients. A blinded study was performed in 55 electrocardiograms (ECGs) of patients with known COLD against 55 ECGs from patients with any other disease except COLD and without ...
S S, Zambrano +2 more
openaire +2 more sources
Relation of QRS Duration to Response to Cardiac Resynchronization Therapy
The American Journal of Cardiology, 2015Left bundle branch block (LBBB) is the most reliable electrocardiographic predictor of responsiveness to cardiac resynchronization therapy (CRT). However, not all patients with LBBB will respond to CRT. Our aim was to investigate the interaction between QRS duration, LBBB-type morphology, and the responsiveness to CRT.
Sassone B. +11 more
openaire +4 more sources
Electrocardiography and Resynchronization Therapy: Is the QRS Duration Sufficient?
Revista Española de Cardiología (English Edition), 2008Cardiac resynchronization therapy (CRT) is clearly indicated in heart failure patients in a higher functional class who have a severely depressed ejection fraction and wide QRS as a marker of interventricular or intraventricular asynchrony. It has been shown in this population that CRT improves symptoms, exercise capacity and ventricular function and ...
openaire +2 more sources