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Chronic Resynchronization Therapy

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https://www.readbyqxmd.com/read/28814710/left-univentricular-pacing-by-rate-adaptive-atrioventricular-delay-in-treatment-of-chronic-heart-failure
#1
Lulu Zhao, Ling Zhao, Lijin Pu, Baotong Hua, Yu Wang, Shumin Li, Qing Li, Tao Guo
BACKGROUND Cardiac resynchronization therapy (CRT) is efficacious in the treatment of chronic heart failure (CHF); however, because it is non-physiological, some patients are unresponsive. The present study used rate-adaptive atrioventricular delay (RAAVD) to track the physiological atrioventricular delay and investigated the effects of left univentricular pacing on CRT. MATERIAL AND METHODS Patients with CHF fulfilling the indication of CRT Class I were categorized into a left univentricular pacing by RAAVD group and a standard biventricular pacing group...
August 17, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28757175/-main-novelties-of-the-last-set-of-european-guidelines-for-the-management-of-heart-failure
#2
Richard Isnard, Nadjib Hammoudi, Lise Legrand, Françoise Pousset
Heart failure is the main chronic disease in cardiology. Its prognosis remains poor despite improvements in its management that allow patients to live increasingly longer with this disease, alternating periods of stability and episodes of decompensation. Treatment guidelines are regularly updated to integrate new results of recent trials that are likely to influence routine care. These guidelines are proposed with different classes of recommendations and difference levels of evidence. It is of paramount importance to summarize the guidelines to make them accessible to the vast majority of cardiologists and easier to read to promote their application...
July 27, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28724879/infectious-complications-in-patients-with-cardiac-implantable-electronic-devices-risk-factors-prevention-and-prognosis
#3
Anna Polewczyk, Wojciech Jacheć, Aneta Maria Polewczyk, Andrzej Tomasik, Marianna Janion, Andrzej Kutarski
INTRODUCTION    Cardiac device infections (CDI) are still a significant problem. The knowledge of risk factors for CDI is crucial both for preventing infections and reducing mortality. OBJECTIVES    The assesment of the risk factors and long term survival of patients with CDI. PATIENTS AND METHODS    The clinical data of 1837 patients (40.9% CDI) undergoing transvenous leads extraction (TLE) at a single institution from 2006 to 2015 was analyzed. We compared the clinical and procedure-related factors for all types of CDI: isolated pocket infection (IPI), isolated lead-related infective endocarditis (ILRIE) and PI+LRIE...
July 19, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28699408/bridging-the-gap-between-heart-failure-and-the-device-clinic
#4
John Rickard, Bruce L Wilkoff
While cardiac resynchronization therapy (CRT) is a mainstay in the management of selected patients with chronic systolic dysfunction, many patients are noted to experience less than expected or no benefit at all from the therapy. Multidisciplinary care has been shown to provide benefit in follow up for patients receiving CRT devices. Areas covered: This review will focus on the apparent reasons behind less than optimal outcomes following CRT as well as multidisciplinary approaches to treating patients with CRT devices...
August 1, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28660601/cardiac-resynchronization-therapy-in-chronic-heart-failure-effect-on-right-ventricular-function
#5
EDITORIAL
Dominik C Benz, Aju P Pazhenkottil
No abstract text is available yet for this article.
June 28, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28653458/left-ventricular-only-pacing-in-heart-failure-patients-with-normal-atrioventricular-conduction-improves-global-function-and-left-ventricular-regional-mechanics-compared-with-biventricular-pacing-an-adaptive-cardiac-resynchronization-therapy-sub-study
#6
Kevin V Burns, Ryan M Gage, Antonia E Curtin, John Gorcsan, Alan J Bank
AIMS: Right ventricular (RV) pacing can impair left ventricular (LV) function. When timed with native RV activation, LV-only pacing may cause greater improvements in LV function than biventricular pacing. This study compared the chronic effects of cardiac resynchronization therapy (CRT) on LV mechanics between biventricular pacing and LV-only pacing in patients with normal atrioventricular (AV) conduction. METHODS AND RESULTS: The Adaptive CRT (aCRT) algorithm provides LV-only pacing timed with native RV activation when the AV interval is normal (≤200 ms during sinus rhythm)...
June 26, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28652030/cardiac-sarcoidosis-left-ventricular-impairment-and-chronic-right-ventricular-pacing-pacing-or-pathology
#7
REVIEW
Homa Forotan, Matthew K Rowe, Dariusz Korczyk, Gerald Kaye
BACKGROUND: Cardiac sarcoidosis (CS) is an uncommon and under-recognized disease which most frequently presents with atrioventricular (AV) block and may also present with ventricular arrhythmias and left ventricular (LV) systolic dysfunction. Because of its protean clinical manifestations, confirming a diagnosis of CS is often challenging. METHODS: We report two cases where patients presented with atrioventricular (AV) block without evidence of underlying myocardial disease, underwent chronic dual-chamber pacing, and presented several years later with severe LV systolic dysfunction...
May 26, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28641292/the-incidence-clinical-significance-and-treatment-effects-of-depression-in-cardiac-resynchronization-therapy-recipients
#8
Tomasz Podolecki, Robert Pudlo, Michal Mazurek, Monika Koziel, Ewa Jedrzejczyk-Patej, Joanna Boidol, Katarzyna Przybylska, Adam Sokal, Oskar Kowalski, Jacek Kowalczyk, Radoslaw Lenarczyk, Zbigniew Kalarus
OBJECTIVES: Chronic heart failure (HF) is associated with significantly increased prevalence of depression. The aim of the study was to assess the incidence and clinical impact of depression as well as the effectiveness of depression treatment in HF patients. METHODS: A prospective interventional trial included 285 consecutive cardiac resynchronization therapy recipients. Patients underwent a psychiatric examination at the time of implantation and then it was routinely repeated at 3, 6, and 12 months after the procedure, and every 6 months thereafter...
June 23, 2017: Cardiology
https://www.readbyqxmd.com/read/28602366/treatment-of-heart-failure-with-abnormal-left-ventricular-systolic-function-in-older-adults
#9
REVIEW
Wilbert S Aronow
Heart failure (HF) with abnormal left ventricular (LV) ejection fraction should be identified and treated. Treat hypertension with diuretics, angiotensin-converting enzyme (ACE) inhibitors, and β-blockers. Treat myocardial ischemia with nitrates and β-blockers. Treat volume overload and HF with diuretics. Treat HF with ACE inhibitors and β-blockers. Sacubitril/valsartan may be used instead of an ACE inhibitor or ARB in chronic symptomatic HF and abnormal LV ejection fraction. Add isosorbide dinitrate/hydralazine in African Americans with class II to IV HF treated with diuretics, ACE inhibitors, and β-blockers...
July 2017: Heart Failure Clinics
https://www.readbyqxmd.com/read/28569386/risk-score-to-assess-mortality-risk-in-patients-undergoing-transvenous-lead-extraction
#10
Ewa Oszczygieł, Andrzej Kutarski, Andrzej Oszczygieł, Beata Mańkowska-Załuska, Michał Chudzik, Jerzy Krzysztof Wranicz, Iwona Cygankiewicz
AIMS: The main aim of this study was to assess 1-year mortality and its predictors in a cohort of patients who underwent transvenous lead extraction (TLE) procedure. METHODS: Retrospective analysis of clinical characteristics and 1-year follow-up of patients referred for a TLE procedure in a single, high-volume center between June 2006 and October 2014 was performed. RESULTS: The studied population included 130 patients (82 males; mean age 64 ± 15 years) implanted with pacemakers (74%), implantable cardioverter defibrillators (15%), or cardiac resynchronization therapy defibrillator (11%)...
June 1, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28554585/predictors-of-response-to-cardiac-resynchronization-therapy-a-prospective-cohort-study
#11
Ana Abreu, Mário Oliveira, Pedro Silva Cunha, Helena Santa Clara, Vanessa Santos, Guilherme Portugal, Pedro Rio, Rui Soares, Luísa Moura Branco, Marta Alves, Ana Luísa Papoila, Rui Ferreira, Miguel Mota Carmo
INTRODUCTION: Cardiac resynchronization therapy (CRT) has modified the prognosis of chronic heart failure (HF) with left ventricular systolic dysfunction. However, 30% of patients do not have a favorable response. The big question is how to determine predictors of response. AIMS: To identify baseline characteristics that might influence echocardiographic response to CRT. METHODS AND RESULTS: We performed a prospective single-center hospital-based cohort study of consecutive HF patients selected to CRT (NYHA class II-IV, left ventricular ejection fraction (LVEF) <35% and QRS complex ≥120 ms)...
June 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28545627/impact-of-renal-function-on-survival-after-cardiac-resynchronization-therapy
#12
J Alvin Kpaeyeh, Laura Divoky, J Madison Hyer, David D Daly, Anbukarasi Maran, Ashley Waring, Michael R Gold
Chronic kidney disease (CKD) is associated with worse survival in patients with heart disease including those with implantable devices. Cardiac resynchronization therapy (CRT) can potentially improve renal function. To assess the relation between the change in renal function and survival with CRT, 238 patients undergoing initial CRT with defibrillator implantation between 2002 and 2011 were followed. The primary end point was all-cause mortality. The estimated glomerular filtration rate (eGFR), before implantation and 6 ± 3 months after CRT was calculated...
July 15, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28471545/eleven-year-trends-of-inpatient-pacemaker-implantation-in-patients-diagnosed-with-sick-sinus-syndrome
#13
Avirup Guha, Xiao Xiang, Devin Haddad, Benjamin Buck, Xu Gao, Michael Dunleavy, Ellen Liu, Dilesh Patel, Vadim V Fedorov, Emile G Daoud
BACKGROUND: Pacemakers (PM) are used for managing sick sinus syndrome (SSS). This study evaluates predictors and trends of PM implantation for SSS. METHODS: Patients were identified from the National Inpatient Sample dataset (2003-2013). Included patients were ≥18 years old, had a diagnosis of sinus node dysfunction and atrial arrhythmia (i.e., SSS). Patients who died, transferred out, who had prior device, or had a defibrillator or resynchronization therapy device implanted were excluded...
May 4, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28467647/prediction-of-optimal-cardiac-resynchronization-by-vectors-extracted-from-electrograms-in-dyssynchronous-canine-hearts
#14
Elien B Engels, Marc Strik, Lars B van Middendorp, Marion Kuiper, Kevin Vernooy, Frits W Prinzen
INTRODUCTION: Proper optimization of atrioventricular (AV) and interventricular (VV) intervals can improve the response to cardiac resynchronization therapy (CRT). It has been demonstrated that the area of the QRS complex (QRSarea) extracted from the vectorcardiogram can be used as a predictor of optimal CRT-device settings. We explored the possibility of extracting vectors from the electrograms (EGMs) obtained from pacing electrodes and of using these EGM-based vectors (EGMVs) to individually optimize acute hemodynamic CRT response...
May 3, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28398556/prognosis-associated-with-redo-cardiac-resynchronization-therapy-following-complete-device-and-lead-extraction-due-to-device-related-infection
#15
Martin Seifert, Viviane Moeller, Anita Arya, Thomas Schau, Frank Hoelschermann, Christian Butter
Aims: An increase in the number of cardiac resynchronization therapy (CRT) device implantations worldwide has led to a consequent increase in the number of infections associated with the device, making extraction of the CRT device inevitable. Redo CRT implantation after treatment and recovery following device extraction is challenging. This study aimed to evaluate the success rate, complications, and long-term prognosis of redo CRT implantation, including the rates of subclavian, cava, and coronary sinus (CS) vein thrombosis as well as re-infection...
April 6, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28387919/the-assessment-of-the-long-term-effects-of-elective-crt-d-of-coronary-heart-disease-after-pci
#16
RANDOMIZED CONTROLLED TRIAL
K Liu, B-T Hua, T Guo, L-J Pu
OBJECTIVE: The present study was planned to evaluate the long-term effects of elective cardiac resynchronization therapy devices (CRT-D) of coronary heart disease after percutaneous coronary intervention (PCI). PATIENTS AND METHODS: We continuously selected 124 patients with chronic stable heart failure to undergo PCI, and were randomly divided into two groups viz. control group with 72 cases and observation group with 52 cases. The control group was given intensive drugs, while the observation group was treated with a combination of intensive drugs with CRT-D...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28363688/pharmacological-treatment-changes-of-chronic-heart-failure-during-cardiac-resynchronization-therapy-a-1-year-follow-up-study
#17
Diana Rinkuniene, Ausra Krivickiene, Jolanta Laukaitiene, Renaldas Jurkevicius
BACKGROUND: Cardiac resynchronization therapy (CRT) is associated with improved morbidity and mortality in patients with chronic heart failure (HF) on optimal medical therapy. We aimed to evaluate changes of medical therapy during CRT and its influence on the CRT response. METHODS: We evaluated 85 HF patients' pharmacological treatment changes during 1-year follow-up of CRT. Statistical analysis was performed using IBM SPSS statistical software (SPSS v.21.0 for Mac OS X)...
March 14, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28339581/rationale-and-design-of-the-budapest-crt-upgrade-study-a-prospective-randomized-multicentre-clinical-trial
#18
Bela Merkely, Annamaria Kosztin, Attila Roka, Laszlo Geller, Endre Zima, Attila Kovacs, Andras Mihaly Boros, Helmut Klein, Jerzy K Wranicz, Gerhard Hindricks, Marcell Clemens, Gabor Z Duray, Arthur J Moss, Ilan Goldenberg, Valentina Kutyifa
Aims: There is lack of conclusive evidence from randomized clinical trials on the efficacy and safety of upgrade to cardiac resynchronization therapy (CRT) in patients with implanted pacemakers (PM) or defibrillators (ICD) with reduced left ventricular ejection fraction (LVEF) and chronic heart failure (HF). The BUDAPEST-CRT Upgrade Study was designed to compare the efficacy and safety of CRT upgrade from conventional PM or ICD therapy in patients with intermittent or permanent right ventricular (RV) septal/apical pacing, reduced LVEF, and symptomatic HF...
October 6, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28316176/-association-of-serum-albumin-level-and-clinical-outcomes-among-heart-failure-patients-receiving-cardiac-resynchronization-therapy
#19
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/28315744/cardiac-implantable-electronic-device-infections-who-is-at-greatest-risk
#20
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 data from the National Inpatient Sample database for cases from 2000 through 2012, we identified procedures for device-related infection (DRI) using International Statistical Classification of Diseases and Related Health Problems, Ninth Revision, Clinical Modification (ICD-9-CM) codes for CIED removal with diagnosis codes for device-related infection or systemic infection...
June 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
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