Recognizing Left Bundle Branch Block and When It Matters Recognizing Left Bundle Branch Block and When It Matters

These Mayo Clinic experts illustrate how to identify LBB on ECG, what measures to take to correct it, and novel developments in cardiac resynchronization therapy.Mayo Clinic
Source: Medscape Today Headlines - Category: Consumer Health News Tags: Cardiology Roundtable Source Type: news

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Purpose of review His bundle pacing (HBP) has emerged as a novel method to achieve electrical resynchronization in bundle branch block and as an alternative means to deliver cardiac resynchronization therapy (CRT). There are now data on HBP in CRT-eligible patients from cohort studies and a single pilot randomized controlled trial (RCT). Recent findings Early clinical data regarding HBP in heart failure have demonstrated echocardiographic and functional improvement similar to traditional biventricular pacing (BiV), mostly when utilized as a bailout to traditional BiV-CRT. A single pilot RCT, His-SYNC, showed a trend t...
Source: Current Opinion in Cardiology - Category: Cardiology Tags: CARDIAC FAILURE: Edited by Rebecca Cogswell and Gene Kim Source Type: research
In Reply We agree with Dr Schwartz and colleagues that it would be worthwhile examining the time from the last anthracycline dose on the extent of CRT benefit. However, for CRT to work, there needed to have been concomitant conduction tissue disease because all the patients in our study had an accompanying LBBB contributing to the mechanical dyssynchrony that was corrected with CRT. The temporal relationship of the LBBB to the development of cardiomyopathy could influence the degree of response. We do not have data to examine the relationship between the last dose of anthracycline, the development of LBBB, and the onset of cardiomyopathy.
Source: JAMA - Category: General Medicine Source Type: research
To the Editor Dr Singh and colleagues reported that patients with chemotherapy-induced cardiomyopathy (CHIC) who met class I or II indications for cardiac resynchronization therapy (CRT) showed improvement in left ventricular ejection fraction (LVEF) and heart failure symptoms by 6 months following CRT implantation. We would like to raise a few points for consideration.
Source: JAMA - Category: General Medicine Source Type: research
AbstractAtrial fibrillation and other atrial tachyarrhythmias are increasing with age and concomitant morbidity. First options in symptomatic patients are drug treatment and catheter ablation. Nevertheless, a considerable number of patients suffer from refractory atrial tachyarrhythmias despite treatment. Atrioventricular node ablation (AVNA) may be helpful in many of these patients. Therefore, we investigated AVNA patients with a long-term follow-up. We enrolled 82 patients with a follow-up longer than 1  year receiving AVNA for drug- and ablation-resistant atrial tachyarrhythmias (AA) in a retrospective manner. Mean...
Source: Heart and Vessels - Category: Cardiology Source Type: research
Impulse Dynamics, based in Mt. Laurel, New Jersey, has developed the Optimizer system, a device designed to improve myocardial contractility in patients with heart failure. The system is intended to improve the quality of life of heart failure patien...
Source: Medgadget - Category: Medical Devices Authors: Tags: Cardiac Surgery Cardiology Exclusive Radiology Rehab Source Type: blogs
Condition:   Compare Two Programming Modalities for CRT Devices in Heart Failure Patients With an Indication for Cardiac Resynchronization Therapy Interventions:   Device: conventional CRT;   Device: MPP CRT Sponsor:   CMC Ambroise Paré Withdrawn
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
ConclusionsSuccessful LBBP carried an aspect of short pQRSD and stim ‐LVAT while the LBB potential was not the prerequisite and necessary feature. LBBP procedure had a high success rate with satisfied and stable lead parameters during short and intermediate‐term observations.This article is protected by copyright. All rights reserved.
Source: Journal of Cardiovascular Electrophysiology - Category: Cardiology Authors: Tags: ORIGINAL ‐ DEVICES Source Type: research
AbstractPurposeTo limit the ever-increasing healthcare costs, strategies to minimize hospitalization length are warranted. In this perspective, early discharge (the same day or after  24 h post-implant. One-year post-implant follow-up (FU) was performed in our CIED clinic.ResultsA total of 1868 patients (68% men, average age 70  years, 85% hypertension, 39% diabetes, 57% coronary artery disease, and average left ventricular ejection fraction (LVEF) 41%) received 703 (38%) pacemaker, 448 (24%) implantable cardioverter-defibrillator (ICD), 639 (34%) cardiac resynchronization therapy (CRT) devices, and 78 (4....
Source: Journal of Interventional Cardiac Electrophysiology - Category: Cardiology Source Type: research
Congenitally corrected transposition of the great arteries (CCTGA) is associated with spontaneous atrioventricular block and pacing-induced cardiomyopathy. Conduction system pacing is a potential alternative to conventional cardiac resynchronization therapy (CRT).
Source: Heart Rhythm - Category: Cardiology Authors: Source Type: research
AbstractBackgroundThere are limited data on cardiac implantable electronic device implantation (CIED) in patients with persistent left superior vena cava (PLSVC).ObjectiveTo describe the outcomes of implanting CIEDs with a focus on cardiac resynchronization therapy (CRT) in patients with PLSVC.MethodsWe identified all patients with a PLSVC that underwent CIED implantation from December 2008 until February 2019 at our institution by querying the electronic medical record (n=34). We then identified controls in a 3:1 fashion (n=102) by matching on device type (CRT vs. non ‐CRT). Procedure success, complications, fluoroscopy...
Source: Journal of Cardiovascular Electrophysiology - Category: Cardiology Authors: Tags: ORIGINAL ‐ DEVICES Source Type: research
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