Results 41 to 50 of about 200,585 (254)

Atrial Septal Defect Associated With Right Bundle Branch Block Masking Brugada Syndrome

open access: yesJACC: Case Reports, 2023
A type 1 Brugada electrocardiogram pattern may be masked by typical right bundle branch block aspect. We present 2 cases (male patients, aged 18 and 22 years) of associated ostium secundum atrial septal defect with a right bundle branch block aspect and ...
Cyrus Moïni, MD   +7 more
doaj   +1 more source

Ventricular arrhythmias in young competitive athletes: Prevalence, determinants, and underlying substrate [PDF]

open access: yes, 2018
Whether ventricular arrhythmias (VAs) represent a feature of the adaptive changes of the athlete's heart remains elusive. We aimed to assess the prevalence, determinants, and underlying substrates of VAs in young competitive athletes.Background--Whether ...
Badano, Luigi Paolo   +19 more
core   +2 more sources

Programming Cardiac Resynchronization Therapy for Electrical Synchrony: Reaching Beyond Left Bundle Branch Block and Left Ventricular Activation Delay

open access: yesJournal of the American Heart Association : Cardiovascular and Cerebrovascular Disease, 2018
Background QRS narrowing following cardiac resynchronization therapy with biventricular (BiV) or left ventricular (LV) pacing is likely affected by patient‐specific conduction characteristics (PR, qLV, LV‐paced propagation interval), making a universal ...
N. Varma   +9 more
semanticscholar   +1 more source

Defining Left Bundle Branch Block Patterns in Cardiac Resynchronisation Therapy: A Return to His Bundle Recordings

open access: yesArrhythmia & Electrophysiology Review, 2019
Left bundle branch block (LBBB) is associated with improved outcome after cardiac resynchronisation therapy (CRT). One historical presumption of LBBB has been that the underlying pathophysiology involved diffuse disease throughout the distal conduction ...
R. Tung, G. Upadhyay
semanticscholar   +1 more source

MYOCARDIAL DEFORMATION AND COMPLETE LEFT BUNDLE BRANCH BLOCK

open access: yesРациональная фармакотерапия в кардиологии, 2015
Tissue Doppler imaging is evolving as a useful echocardiographic tool for quantitative assessment of left ventricular systolic and diastolic function.
E. N. Pavlyukova   +7 more
doaj   +3 more sources

Left Ventricular Contraction Sequence in a Case Where the QRS Changed from Left to Atypical Right Bundle Branch Block

open access: yesInternational Medical Case Reports Journal, 2020
Hideyuki Hara,1 Takako Nagata,2 Hiroshi Ito,1 Shinichi Niwano,2 Junya Ako2 1Division of Cardiology, Numazu City Hospital, Numazu, Japan; 2Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, JapanCorrespondence ...
Hara H, Nagata T, Ito H, Niwano S, Ako J
doaj  

Clinical implications of electrocardiographic bundle branch block in primary care

open access: yesHeart, 2019
Objectives Electrocardiographic bundle branch block (BBB) is common but the prognostic implications in primary care are unclear. We sought to investigate the relationship between electrocardiographic BBB subtypes and the risk of cardiovascular (CV ...
P. Rasmussen   +13 more
semanticscholar   +1 more source

Right Bundle Branch Block: Current Considerations

open access: yesCurrent Cardiology Reviews, 2020
RBBB, a pattern seen on the 12-lead ECG, results when normal electrical activity in the His-Purkinje system is interrupted for some reason. The normal sequence of activation is altered in RBBB, with a resultant characteristic appearance on the ECG ...
T. Ikeda
semanticscholar   +1 more source

Exercise-induced left septal fascicular block: an expression of severe myocardial ischemia [PDF]

open access: yes, 2006
The electrocardiogram (ECG) criteria for the left septal fascicular block (LSFB) are not universally accepted and many other denominations can be seen in literature: focal septal block, septal focal block, left septal fascicular block, left anterior ...
Ferreira, Beatriz Moreira Ayub   +3 more
core   +2 more sources

Chest pain and exercise induced left bundle branch block – A clinical dilemma

open access: yesJournal of Family Medicine and Primary Care, 2019
Exercise-induced left bundle branch block is a rare electrocardiographic phenomenon. We present two patients with angina pectoris who developed left bundle branch block on ECG during treadmill test. The first patient had non-obstructive coronary arteries
Surender Deora   +3 more
doaj   +1 more source

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