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Cardiac resynchronization therapy or CRT

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https://www.readbyqxmd.com/read/29238367/cardiac-resynchronization-therapy-improved-the-clinical-outcomes-in-pacemaker-patients-upgraded-to-biventricular-device
#1
Han Jin, Wei Hua, Li-Gang Ding, Jing Wang, Hong-Xia Niu, Min Gu, Cong Xue, Shu Zhang
No abstract text is available yet for this article.
October 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29234842/-patients-with-a-wearable-cardioverter-defibrillator-wcd-prescription-function-and-rehabilitation-support
#2
REVIEW
A Schlitt, M Guha, M Noutsias, H H Klein, H U Klein
Assessment of a permanent risk of life-threatening ventricular arrhythmia in patients with severely reduced left ventricular ejection fraction (LVEF <35%), e. g. after myocarditis, dilated cardiomyopathy, acute myocardial infarction, in patients with postpartum cardiomyopathy or implantable cardioverter-defibrillator (ICD) and cardiac resynchronization treatment plus defibrillator (CRT-D) infection with temporary explantation of the system is a medical challenge. This is time-consuming and unsafe because life-threatening ventricular arrhythmias may occur during the time of risk assessment...
December 12, 2017: Herz
https://www.readbyqxmd.com/read/29233645/response-to-cardiac-resynchronization-therapy-dichotomous-or-continuous-variable
#3
Diogo Magalhães Cavaco
No abstract text is available yet for this article.
December 9, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29233231/coronary-sinus-ostial-atresia-with-persistent-left-superior-caval-vein-in-a-patient-with-congenitally-corrected-transposition-of-the-great-arteries
#4
Yuchen Zhang, Hugo V Alberdi, Elsie T Nguyen
We present a case of a 57-year-old man with congenitally corrected transposition of great vessels who was found to have coronary ostial atresia with cranial flow through left superior vena cava on CT with contrast injection in coronary tributaries. As such, he was ineligible for cardiac resynchronization therapy.
December 13, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/29229494/classic-pattern-dyssynchrony-in-adolescents-and-adults-with-a-fontan-circulation
#5
Assami Rösner, Tigran Khalapyan, Håvard Dalen, Doff B McElhinney, Mark K Friedberg, George K Lui
BACKGROUND: Previous studies have suggested the presence of dyssynchrony in the functionally single ventricle. The aim of this study was to investigate the presence of classic-pattern dyssynchrony (CPD), characterized by typical early and late deformation of opposite walls, and its relation to QRS duration and myocardial function in patients with single-ventricle physiology after Fontan palliation. METHODS: In a retrospective cross-sectional study, 101 adolescent and adult patients with single-ventricle physiology after the Fontan procedure were investigated...
December 8, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29225103/what-happens-to-non-responders-in-cardiac-resynchronization-therapy
#6
Pedro Rio, Mário Martins Oliveira, Pedro Silva Cunha, Manuel Nogueira da Silva, Luísa Moura Branco, Ana Galrinho, Rui Soares, Joana Feliciano, Ricardo Pimenta, Rui Cruz Ferreira
INTRODUCTION AND OBJECTIVES: Left ventricular reverse remodeling (LVRR) is strongly related to the long-term prognosis of patients undergoing cardiac resynchronization therapy (CRT). The aim of this study was to assess the long-term clinical outcome of patients without LVRR at six months after CRT implantation and to determine the prognostic impact of clinical response in this population. METHODS: We analyzed 178 consecutive patients who underwent successful CRT device implantation (age 64±11 years; 69% male; 89% in New York Heart Association [NYHA] functional class III; 35% with ischemic cardiomyopathy)...
December 7, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29222875/the-incidence-and-outcomes-of-delayed-response-to-cardiac-resynchronization-therapy
#7
Kebei Li, Zhiyong Qian, Xiaofeng Hou, Yao Wang, Yuanhao Qiu, Yufeng Sheng, Xuesong Qian, Yong Zhou, Jiangang Zou
BACKGROUND: The incidence and clinical outcomes of delayed response to cardiac resynchronization therapy (CRT) have not been well clarified. We aimed to observe the incidence and prognosis of delayed response and to identify its possible mechanisms. METHODS: A total of 115 CRT patients were retrospectively analyzed in our study. Patients who met the enrollment criteria were divided into 2 groups: group A, conventional responders who showed response at 1-year follow-up, and group B, delayed responders who showed response after 1-year follow-up...
December 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29222865/multipoint-pacing-improves-peripheral-hemodynamic-response-non-invasive-assessment-using-radial-artery-tonometry
#8
Giuseppe Ciconte, Žarko Ćalović, Gabriele Vicedomini, Amarild Cuko, Luke C McSpadden, Chunlan Jiang, Kyungmoo Ryu, Igor Caporaso, Robert Stutz, Dean Winter, Massimo Saviano, Raffaele Vitale, Manuel Conti, Vincenzo Santinelli, Carlo Pappone
BACKGOUND: Multipoint left ventricular (LV) pacing (MultiPoint™ Pacing [MPP], Abbott) improves the response rate to cardiac resynchronization therapy (CRT). We evaluated the feasibility of non-invasive radial artery tonometry (RAT) to characterize arterial pressure morphology changes (pre-ejection period [PEP] and ejection duration [ED]) between conventional CRT and MPP pacing interventions. METHODS: Patients with a MPP-enabled CRT device (Quadra Assura MP™, Abbott) underwent non-invasive RAT assessment (SphygmoCor CVMS, AtCor Medical Inc...
December 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29222864/effects-of-cardiac-resynchronization-therapy-after-inferior-myocardial-infarction-on-secondary-mitral-regurgitation-and-mitral-valve-geometry
#9
Christos G Mihos, Evin Yucel, Romain Capoulade, Mary P Orencole, Gaurav A Upadhyay, Orlando Santana, Jagmeet P Singh, Michael H Picard
BACKGROUND: The effects of cardiac resynchronization therapy (CRT) on secondary mitral regurgitation (MR), and mitral valve (MV) and left ventricular (LV) geometry, in patients with prior inferior myocardial infarction is not clearly defined. We assessed these outcomes utilizing 2-dimensional echocardiography, and analyzed echocardiographic geometric variables that may correlate with follow-up MR severity. METHODS: Between 2009 and 2012, 229 CRT were implanted. Twenty-two had prior inferior myocardial infarction, ≥ mild MR at baseline, and serial echocardiography...
December 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29222164/cardiac-resynchronization-therapy-in-heart-failure-do-evidence-based-guidelines-follow-the-evidence
#10
Nisha D Almeida, Eva Suarthana, Nandini Dendukuri, James M Brophy
No abstract text is available yet for this article.
December 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/29221681/hypercalcemic-crisis-and-primary-hyperparathyroidism-cause-of-an-unusual-electrical-storm
#11
Tatiana Guimarães, Miguel Nobre Menezes, Diogo Cruz, Sónia do Vale, Armando Bordalo, Arminda Veiga, Fausto J Pinto, Dulce Brito
Hypercalcemia is a known cause of heart rhythm disorders, however its association with ventricular arrhythmias is rare. The authors present a case of a fifty-three years old male patient with a ischemic and ethanolic dilated cardiomyopathy, and severely reduced ejection fraction, carrier of cardiac resynchronization therapy (CRT) with cardioverter defibrillator (ICD), admitted in the emergency department with an electrical storm, with multiple appropriated ICD shocks, refractory to antiarrhythmic therapy. In the etiological investigation was documented severe hypercalcemia secondary to primary hyperparathyroidism undiagnosed until then...
December 5, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29209951/relationship-of-left-ventricular-global-longitudinal-strain-with-cardiac-autonomic-denervation-as-assessed-by-123i-mibg-scintigraphy-in-patients-with-heart-failure-with-reduced-ejection-fraction-submitted-to-cardiac-resynchronization-therapy-assessment-of-cardiac
#12
Madalena Coutinho Cruz, Ana Abreu, Guilherme Portugal, Helena Santa-Clara, Pedro S Cunha, Mario M Oliveira, Vanessa Santos, Luís Oliveira, Pedro Rio, Inês Rodrigues, Luís A Morais, Rui C Ferreira, Miguel M Carmo
BACKGROUND: Heart failure (HF) is associated with cardiac autonomic denervation (AD), which can be non-invasively assessed by 123I-metaiodobenzylguanidine (123I-mIBG) scintigraphy and has prognostic implications. We aimed to study the relationship between myocardial contractility assessed by global longitudinal strain (GLS) and AD assessed by 123I-mIBG scintigraphy in advanced HF. METHODS/RESULTS: BETTER-HF is a prospective randomized clinical trial including HF patients (pts) submitted to cardiac resynchronization therapy (CRT) who are submitted to a clinical, echocardiographic, and scintigraphic assessment before and 6 months after CRT...
December 5, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29207690/morphological-and-morphometric-study-of-coronary-sinus-in-north-indian-population
#13
Beegum Zabina, Rajan Kumar Singla, Ravi Kant Sharma, Neelam Bala
Introduction: Coronary sinus (CS) is the largest vein draining the blood from heart. It is a muscular tube of about 2 cm to 3 cm length and 1 cm in caliber. It has become a clinically important structure through its role in providing access for different cardiac procedures viz., biventricular pacing, arrhythmia ablation and for deployment of an array of cardiac devices. Aim: To study the location, shape, length and width of CS including its left atrial muscular coverage in 50 cadaveric hearts...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207228/-clinical-practice-for-the-diagnosis-of-cardiac-arrhythmias-in-patients-on-renal-replacement-therapy-data-from-a-lombard-survey
#14
Simonetta Genovesi, Elisa Nava, Alice Pasa, Enzo Corghi, Patrizia Ondei, Elisabetta Marta, Antonio Bellasi, Fabio Malberti, Ugo Teatini, Carlo Maria Guastoni, Leonardo Spatola, Maria Carmen Luise, Renza Tiboldo, Silvio Bertoli, Piergiorgio Messa, Maria Doria, Maurizio Gallieni, Mario Cozzolino, Donatella Spotti, Valeria Sala, Elisabetta Sironi, Giuseppe Boriani
Among dialysis patients, 40% of deaths are due to cardiovascular causes, and 60% of cardiac deaths are due to an arrhythmia. The purpose of this survey, carried out with the organizational support of the Lombard Section of the Italian Society of Nephrology, is to evaluate the frequency and mode of use of non-invasive instruments for the diagnosis of cardiac arrhythmias in the dialysis centers of Lombardy. Information on the prevalence and type of cardiac devices at December 1, 2016 in this population was also required...
December 5, 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/29203081/semi-automated-qrs-score-as-a-predictor-of-survival-in-crt-treated-patients-with-strict-left-bundle-branch-block
#15
C Reitan, U Chaudhry, B Atwater, J Jacobsson, J P Couderc, X Xia, J Carlson, P G Platonov, R Borgquist
BACKGROUND: Cardiac Resynchronization Therapy (CRT) is widely used for treating selected heart failure patients, but patients with myocardial scar respond worse to treatment. The Selvester QRS scoring system estimates myocardial scar burden using 12-lead ECG. This study's objective was to investigate the scores correlation to mortality in a CRT population. METHODS AND RESULTS: Data on consecutive CRT patients was collected. 401 patients with LBBB and available ECG data were included in the study...
November 15, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29195547/the-role-of-interventricular-conduction-delay-to-predict-clinical-response-with-cardiac-resynchronization-therapy
#16
Michael R Gold, Yinghong Yu, Nicholas Wold, John D Day
BACKGROUND: Pacing at sites with late electrical activation or greater interventricular delay is associated with improvement in measures of cardiac resynchronization therapy (CRT) response, primarily reverse remodeling. However, little is known about whether such lead positions improve heart failure (HF) clinical outcomes. OBJECTIVE: The purpose of this study was to assess the association between interventricular electrical delay and HF clinical outcomes. METHODS: The Pacing Evaluation-Atrial SUpport Study was a multicenter randomized trial of patients undergoing CRT-defibrillator implantation...
December 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29194868/narrowing-filtered-qrs-duration-on-signal-averaged-electrocardiogram-predicts-outcomes-in-cardiac-resynchronization-therapy-patients-with-nonischemic-heart-failure
#17
Atsushi Suzuki, Tsuyoshi Shiga, Daigo Yagishita, Yoshimi Yagishita-Tagawa, Kotaro Arai, Yuji Iwanami, Koichiro Ejima, Kyomi Ashihara, Morio Shoda, Nobuhisa Hagiwara
BACKGROUND: To evaluate the impact of changes in the filtered QRS duration (fQRS) on signal-averaged electrocardiograms (SAECGs) from pre- to postimplantation on the clinical outcomes in nonischemic heart failure (HF) patients under cardiac resynchronization therapy (CRT). METHODS: We studied 103 patients with nonischemic HF and sinus rhythm who underwent CRT implantation. SAECGs were obtained within 1 week before and 1 week after implantation and narrowing fQRS was defined as a decrease in fQRS from pre- to postimplantation...
November 30, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/29192595/multiple-pacemaker-lead-breakages-due-to-clavicle-dislocation-following-clavicle-fracture
#18
Hideyuki Hasebe
A 58-year-old man undergoing cardiac resynchronization therapy with a defibrillator in his right subcostal area fell from his bed, leading to fracture of the right clavicle. Serial radiographs showed dislocation of the distal clavicle 2 months after the initial fracture. Lead parameters dramatically changed after dislocation of the distal clavicle. Radiography indicated that the device leads seemed to be compressed by the distal clavicle in certain positions of the right upper limb. It was likely that various movements of the right upper limb during his daily life insidiously damaged the device leads, leading to the lead breakages...
September 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29186401/appropriate-implantable-cardioverter-defibrillator-interventions-in-cardiac-resynchronization-therapy-defibrillator-crt-d-patients-undergoing-device-replacement-time-to-downgrade-from-crt-d-to-crt-pacemaker-insights-from-real-world-clinical-practice-in-the
#19
Maria Lucia Narducci, Mauro Biffi, Ernesto Ammendola, Antonello Vado, Andrea Campana, Domenico Rosario Potenza, Matteo Iori, Francesco Zanon, Valerio Zacà, Massimo Zoni Berisso, Matteo Bertini, Fabio Lissoni, Alberto Bandini, Maurizio Malacrida, Filippo Crea
Aim: Ventricular tachycardia (VT)/ventricular fibrillation (VF) occurrence after cardiac resynchronization therapy-defibrillator (CRT-D) replacement is unknown; hence, there is no practical guideline to recommend either CRT-D or CRT-pacemaker at the time of device replacement. We observed the 1-year VT/VF occurrence after CRT-D replacement in a subanalysis of the Detect Long-term Complications after ICD Replacement (DECODE) registry. Methods and results: A total of 332 consecutive patients who had undergone CRT-D replacement from 2013 to 2015 were enrolled in 36 Italian centres...
November 27, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29185615/predictors-of-total-mortality-and-echocardiographic-response-for-cardiac-resynchronization-therapy-a-cohort-study
#20
Guilherme Ferreira Gazzoni, Matheus Bom Fraga, Andres Di Leoni Ferrari, Pablo da Costa Soliz, Anibal Pires Borges, Eduardo Bartholomay, Carlos Antonio Abunader Kalil, Vanessa Giaretta, Luis Eduardo Paim Rohde
BACKGROUND: Clinical studies demonstrate that up to 40% of patients do not respond to cardiac resynchronization therapy (CRT), thus, appropriate patient selection is critical to the success of CRT in heart failure. OBJECTIVE: Evaluation of mortality predictors and response to CRT in the Brazilian scenario. METHODS: Retrospective cohort study including patients submitted to CRT in a tertiary hospital in southern Brazil from 2008 to 2014. Survival was assessed through a database of the State Department of Health (RS)...
November 27, 2017: Arquivos Brasileiros de Cardiologia
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