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https://www.readbyqxmd.com/read/28332315/significant-increase-of-flow-kinetic-energy-in-nonresponders-patients-to-cardiac-resynchronization-therapy
#1
Sara Cimino, Dino Palombizio, Francesco Cicogna, Donatella Cantisani, Manuela Reali, Domenico Filomena, Valentina Petronilli, Carlo Iacoboni, Luciano Agati
BACKGROUNDS: It's still unclear if different patterns of intraventricular flow dynamics may be detected in patients nonresponders to cardiac resynchronization therapy (CRT) as compared to responders ones. Aim of this study was to evaluate the characteristics of left ventricular (LV) flow dynamics 6-months after CRT to identify Echo-particle imaging velocity (PIV) patterns were more frequently detected in nonresponders patients. METHODS: Thirty-two patients with dilated cardiomyopathy, undergoing CRT, were enrolled in this study...
March 23, 2017: Echocardiography
https://www.readbyqxmd.com/read/28330445/cardiac-amyloidosis-mimicking-severe-aortic-valve-stenosis-a-case-report-demonstrating-diagnostic-pitfalls-and-role-of-dobutamine-stress-echocardiography
#2
Tim Salinger, Kai Hu, Dan Liu, Sebastian Herrmann, Kristina Lorenz, Georg Ertl, Peter Nordbeck
BACKGROUND: Aortic valve stenosis is a common finding diagnosed with high sensitivity in transthoracic echocardiography, but the examiner often finds himself confronted with uncertain results in patients with moderate pressure gradients and concomitant systolic heart failure. While patients with true-severe low-gradient aortic valve stenosis with either reduced or preserved left ventricular systolic function are primarily candidates for valve replacement, there is a relevant proportion of patients with pseudo-severe aortic valve stenosis anticipated not to benefit but actually rather deteriorate by interventional therapy or surgery...
March 22, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28329322/utilization-and-in-hospital-complications-of-cardiac-resynchronization-therapy-trends-in-the-united-states-from-2003-to-2013
#3
Seyed Mohammadreza Hosseini, Kasra Moazzami, Guy Rozen, Jeena Vaid, Ahmed Saleh, E Kevin Heist, Mark Vangel, Jeremy N Ruskin
Aims: Cardiac resynchronization therapy (CRT) device implantation has been shown to reduce morbidity and mortality in selected patients with heart failure. We sought to investigate the utilization and in-hospital complications of cardiac resynchronization therapy defibrillator (CRT-D) and pacemaker (CRT-P) implantations in the United States from 2003 to 2013. Methods and results: Patients receiving CRT-D or CRT-P were identified in the National Inpatient Sample database (NIS), using the International Classification of Diseases-Ninth Revision-Clinical Modification procedure codes...
March 13, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28329299/rational-and-design-of-eurocrt-an-international-observational-study-on-multi-modality-imaging-and-cardiac-resynchronization-therapy
#4
Erwan Donal, Victoria Delgado, Julien Magne, Chiara Bucciarelli-Ducci, Christophe Leclercq, Bernard Cosyns, Marta Sitges, Thor Edvardsen, Elif Sade, Ivan Stankovic, Eustachio Agricola, Maurizio Galderisi, Patrizio Lancellotti, Alfredo Hernandez, Sven Plein, Denisa Muraru, Ehud Schwammenthal, Gerhard Hindricks, Bogdan A Popescu, Gilbert Habib
Aims: Assessment of left ventricular (LV) volumes and ejection fraction (LVEF) with cardiac imaging is important in the selection of patients for cardiac resynchronization therapy (CRT). Several observational studies have explored the role of imaging-derived LV dyssynchrony parameters to predict the response to CRT, but have yielded inconsistent results, precluding the inclusion of imaging-derived LV dyssynchrony parameters in current guidelines for selection of patients for CRT. METHODS: The EuroCRT is a large European multicentre prospective observational study led by the European Association of Cardiovascular Imaging...
February 27, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28326909/resynchronization-dynamics-reveal-that-the-ventral-entrains-the-dorsal-suprachiasmatic-nucleus
#5
Stephanie R Taylor, Thomas J Wang, Daniel Granados-Fuentes, Erik D Herzog
Although the suprachiasmatic nucleus (SCN) has long been considered the master circadian clock in mammals, the topology of the connections that synchronize daily rhythms among SCN cells is not well understood. We combined experimental and computational methods to infer the directed interactions that mediate circadian synchrony between regions of the SCN. We analyzed PERIOD2 (PER2) expression from SCN slices during and after treatment with tetrodotoxin, allowing us to map connections as cells resynchronized their daily cycling following blockade and restoration of cell-cell communication...
February 2017: Journal of Biological Rhythms
https://www.readbyqxmd.com/read/28325519/myocardial-contractile-reserve-predicts-left-ventricular-reverse-remodeling-and-cardiac-events-in-dilated-cardiomyopathy
#6
Ryota Morimoto, Takahiro Okumura, Akihiro Hirashiki, Hideki Ishii, Takeo Ichii, Soichiro Aoki, Kenji Furusawa, Hiroaki Hiraiwa, Toru Kondo, Naoki Watanabe, Naoaki Kano, Kenji Fukaya, Akinori Sawamura, Kyosuke Takeshita, Yasuko K Bando, Toyoaki Murohara
BACKGROUND: Catecholamine sensitivity estimated using a dobutamine stress test (DST) is recognized as a measure of the beta-adrenergic myocardial contractile reserve, which is involved with left ventricular reverse remodeling (LV-RR). We investigated whether the prognostic ability of the DST for LV-RR could predict cardiac events. METHODS: There was a total of 192 enrolled patients with dilated cardiomyopathy (DCM). DCM was defined as a LV ejection fraction (LV-EF) ≤45% and LV end-diastolic dimension (LVDd) ≥55mm...
March 18, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28323173/outcomes-of-cardiac-resynchronization-therapy-in-patients-with-intermittent-atrial-fibrillation-or-atrial-flutter-in-the-companion-trial
#7
Matthew M Kalscheur, Leslie A Saxon, Byron K Lee, Jonathan S Steinberg, Chaoqun Mei, Kevin A Buhr, David L DeMets, Michael R Bristow, Steven N Singh
BACKGROUND: Controlled clinical trial data are lacking for cardiac resynchronization therapy (CRT) outcomes in patients with advanced heart failure (HF) from reduced left ventricular ejection fraction (HFrEF) and intermittent atrial fibrillation or flutter (AF/AFL). OBJECTIVE: To describe CRT outcomes in patients with intermittent AF/AFL and advanced HF. METHODS: HF outcomes in patients from the COMPANION trial with NYHA Class III or IV HFrEF, LVEF ≤ 0...
March 17, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28321682/recent-advances-and-clinical-applications-of-pet-cardiac-autonomic-nervous-system-imaging
#8
REVIEW
Nabil E Boutagy, Albert J Sinusas
PURPOSE OF REVIEW: The purpose of this review was to summarize current advances in positron emission tomography (PET) cardiac autonomic nervous system (ANS) imaging, with a specific focus on clinical applications of novel and established tracers. RECENT FINDINGS: [(11)C]-Meta-hydroxyephedrine (HED) has provided useful information in evaluation of normal and pathological cardiovascular function. Recently, [(11)C]-HED PET imaging was able to predict lethal arrhythmias, sudden cardiac death (SCD), and all-cause mortality in heart failure patients with reduced ejection fraction (HFrEF)...
April 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28321027/effects-of-long-acting-loop-diuretics-in-heart-failure-with-reduced-ejection-fraction-patients-with-cardiac-resynchronization-therapy
#9
Masahiko Asami, Jiro Aoki, Shuzou Tanimoto, Yu Horiuchi, Mika Watanabe, Koichi Furui, Kentaro Yasuhara, Tatsuyuki Sato, Kengo Tanabe, Kazuhiro Hara
There have been no reports evaluating the impact of long-acting loop diuretics (LLD) on the outcome of heart failure (HF) and arrhythmia treatment in HF with reduced ejection fraction (HFrEF) patients implanted with a cardiac resynchronization therapy (CRT) device.This was a prospective, single-blind, randomized crossover study. We allocated 21 consecutive CRT implanted patients into 2 groups. The furosemide group received furosemide as a first treatment and azosemide as a second treatment. The azosemide group received this treatment in the reverse order...
March 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28316176/-association-of-serum-albumin-level-and-clinical-outcomes-among-heart-failure-patients-receiving-cardiac-resynchronization-therapy
#10
S W Yang, Z M Liu, J R Mi, S Y Liu, L G Ding, K P Chen, W Hua, S Zhang
Objective: To assess the relationship between serum albumin level and clinical outcome in heart failure (HF) patients receiving cardiac resynchronization therapy (CRT). Methods: In this retrospective cohort study, 357 consecutive chronic heart failure patients receiving CRT between January 2010 and December 2015 were enrolled and divided into two groups based on pre-CRT serum albumin (albumin≥40 g/L, n=244; albumin<40 g/L, n=113). Clinical outcomes were defined as all-cause mortality (including heart transplantation) and rehospitalization due to worsening HF...
March 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28316104/implantable-cardioverter-defibrillators-for-primary-prevention-of-mortality-in-patients-with-non-ischemic-cardiomyopathy-a-meta-analysis-of-randomized-controlled-trials
#11
Stavros Stavrakis, Zain Asad, Dwight Reynolds
BACKGROUND: Implantable cardioverter defibrillators (ICDs) improve survival in patients with heart failure due to ischemic cardiomyopathy, but their benefit in non-ischemic cardiomyopathy (NICM) has been recently questioned. We performed a meta-analysis of randomized clinical trials to examine the effect of ICDs on total mortality and arrhythmic death in patients with NICM. We also examined the impact of age and cardiac resynchronization therapy (CRT) on the relative effect of ICD compared to control...
March 18, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28315744/cardiac-implantable-electronic-device-infections-who-is-at-greatest-risk
#12
Parijat Saurav Joy, Gagan Kumar, Jeanne E Poole, Barry London, Brian Olshansky
BACKGROUND: Cardiac Implantable Electronic Device (CIED) infections are associated with hospitalization, mortality, increased costs and adverse outcomes. OBJECTIVE: Determine the burden of infections for CIEDs based on device type, associated comorbidities and clinical characteristics over a 12-year period. METHODS: Utilizing the National Inpatient Sample database from 2000-2012, procedures for device related infection (DRI) were identified using ICD-9-CM code for CIED removal with diagnosis codes for device-related infection or systemic infection...
March 15, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28315562/improvement-in-left-ventricular-intrinsic-dyssynchrony-with-cardiac-resynchronization-therapy
#13
Serdar Bozyel, Ayşen Ağaçdiken Ağır, Tayfun Şahin, Umut Çelikyurt, Müjdat Aktaş, Onur Argan, İrem Yılmaz, Kurtuluş Karaüzüm, Emir Derviş, Ahmet Vural, Dilek Ural
OBJECTIVE: Cardiac resynchronization therapy (CRT) has been shown to induce a structural and electrical remodeling; the data on whether left ventricle (LV) reverse remodeling is associated with restitution of intrinsic contraction pattern are unknown. In this study, we investigated the presence of improvement in left ventricular intrinsic dyssynchrony in patients with CRT. METHODS: A total of 45 CRT recipients were prospectively studied. Dyssynchrony indexes including interventricular mechanical delay (IVMD) and tissue Doppler velocity opposing-wall delay (OWD) as well as QRS duration on 12-lead surface electrocardiogram were recorded before CRT device implantation...
March 3, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28295869/predictors-of-short-term-clinical-response-to-cardiac-resynchronization-therapy
#14
Cecilia Linde, William T Abraham, Michael R Gold, J Claude Daubert, Anthony S L Tang, James B Young, Lou Sherfesee, J Harrison Hudnall, Dedra H Fagan, John G Cleland
AIMS: Cardiac resynchronization therapy (CRT) reduces morbidity and mortality in patients with symptomatic heart failure and QRS prolongation but there is uncertainty about which patient characteristics predict short-term clinical response. METHODS AND RESULTS: In an individual patient meta-analysis of three double-blind, randomized trials, clinical composite score (CCS) at 6 months was compared in patients assigned to CRT programmed on or off. Treatment-covariate interactions were assessed to measure likelihood of improved CCS at 6 months...
March 14, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28294364/predictors-and-long-term-outcome-of-super-responders-to-cardiac-resynchronization-therapy
#15
Abdul Ghani, Peter Paul H M Delnoy, Ahmet Adiyaman, Jan Paul Ottervanger, Anand R Ramdat Misier, Jaap Jan J Smit, Arif Elvan
BACKGROUND: The level of improvement in left ventricular ejection fraction (LVEF) in super-responders to cardiac resynchronization therapy (CRT) is exceptional. However, the long-term prognosis remains unknown in a large population. HYPOTHESIS: Whether super-responders haven good long-term outcomes. METHODS: We registered 347 patients with primary CRT-D indication. Super-response was defined by LVEF >50% at follow-up echocardiogram. Best-subset regression analysis identified predictors of super-response...
March 14, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28292754/cardiac-resynchronization-therapy-reduces-ventricular-arrhythmias-in-primary-but-not-secondary-prophylactic-implantable-cardioverter-defibrillator-patients-insight-from-the-resynchronization-in-ambulatory-heart-failure-trial
#16
John L Sapp, Ratika Parkash, George A Wells, Elizabeth Yetisir, Martin J Gardner, Jeffrey S Healey, Bernard Thibault, Laurence D Sterns, David Birnie, Pablo B Nery, Soori Sivakumaran, Vidal Essebag, Paul Dorian, Anthony S L Tang
BACKGROUND: The RAFT (Resynchronization in Ambulatory Heart Failure Trial) demonstrated that cardiac resynchronization therapy (CRT) reduced both mortality and heart failure hospitalizations in patients with functional class II or III heart failure and widened QRS. We examined the influence of CRT on ventricular arrhythmias in patients with primary versus secondary prophylaxis defibrillator indications. METHODS AND RESULTS: All ventricular arrhythmias among RAFT study participants were downloaded and adjudicated by 2 blinded reviewers with an overreader for disagreements and committee review for remaining discrepancies...
March 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28292197/sudden-death-risk-stratification-in-non-ischemic-dilated-cardiomyopathy-using-old-and-new-tools-a-clinical-challenge
#17
Antonis S Manolis
Risk stratification for sudden cardiac death in non-ischemic dilated cardiomyopathy (NIDCM) remains a clinical challenge. Areas Covered: Currently, left ventricular ejection fraction (LVEF), severity of heart failure symptoms according to NYHA classification, and morphology and duration of the QRS complex guide device management in these patients with implantation of a cardioverter defibrillator (ICD) and/or cardiac resynchronization therapy (CRT) devices. Recently, the results of a randomized trial stirred some controversy regarding the utility of ICD in NIDCM patients, however, a subsequent meta-analysis confirmed prior findings of the survival-prolonging benefit of device therapy...
March 15, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28290794/-hemodynamic-derangements-in-patients-with-functional-univentricular-heart-mechanisms-of-development-possibilities-of-treatment
#18
I A Kovalev, S Ovroutski, I V Plotnikova, A A Tupikina
Heart failure (HF) is a predictable outcome of nearly all cardiovascular diseases including congenital heart diseases (CHD). A special category comprises patients with functional single ventricle (FSV) of the heart because of extreme diversity of anatomical changes of the heart and great vessels, complex mechanisms of development of HF, multistage surgical correction of the defect, presence of arrhythmias, progressive rise of pulmonary vascular resistance, etc. Prevention and treatment of HF in patients with FSV includes surgical optimization of pulmonary blood flow during neonatal period, timely staged surgical correction of the defect, pharmacotherapy, cardiac resynchronization therapy, and in severe cases mechanical cardiac support and heart transplantation...
February 2017: Kardiologiia
https://www.readbyqxmd.com/read/28287212/-the-pacemaker-and-implantable-cardioverter-defibrillator-registry-of-the-italian-association-of-arrhythmology-and-cardiac-pacing-annual-report-2015
#19
Alessandro Proclemer, Massimo Zecchin, Antonio D'Onofrio, Giuseppe Boriani, Giovanni Luca Botto, Domenico Facchin, Luca Rebellato, Marco Ghidina, Giulia Bianco, Emanuela Bernardelli, Elsa Pucher, Dario Gregori
BACKGROUND: The pacemaker (PM) and implantable cardioverter-defibrillator (ICD) Registry of the Italian Association of Arrhythmology and Cardiac Pacing (AIAC) monitors the main epidemiological data in real-world practice. The survey for the 2015 activity collects information about demographics, clinical characteristics, main indications for PM/ICD therapy and device types from the Italian collaborating centers. METHODS: The Registry collects prospectively national PM and ICD implantation activity on the basis of European cards...
January 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28284756/feasibility-and-association-of-neurohumoral-blocker-uptitration-following-cardiac-resynchronization-therapy
#20
Pieter Martens, Frederik H Verbrugge, Petra Nijst, Philippe Pb Bertrand, Matthias Dupont, Wilson Wh Tang, Wilfried Mullens
BACKGROUND Cardiac resynchronization therapy (CRT) improves mortality and morbidity on top of optimal medical therapy in heart failure with reduced ejection fraction (HFrEF). This study aims to elucidate the association between neurohumoral blocker uptitration following CRT-implantation and clinical outcome. METHODS & RESULTS Doses of angiotensin-converting enzyme inhibitors (ACE-I), angiotensin receptor blockers (ARB) and beta-blockers were retrospectively evaluated in 650 consecutive CRT patients implanted between October 2008 and August 2015 and followed in a tertiary multi-disciplinary CRT clinic...
March 8, 2017: Journal of Cardiac Failure
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