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https://www.readbyqxmd.com/read/29045311/cardiac-resynchronization-therapy-outcomes-in-patients-with-chronic-heart-failure-cardiac-resynchronization-therapy-with-pacemaker-versus-cardiac-resynchronization-therapy-with-defibrillator
#1
Michael Drozd, John Gierula, Judith E Lowry, Maria F Paton, Eleanor Joy, Haqeel A Jamil, Richard M Cubbon, Mark T Kearney, David A Cairns, Klaus K Witte
AIMS: Cardiac resynchronization therapy (CRT) for chronic heart failure with left ventricular systolic dysfunction (LVSD) consistently improves survival against optimal medical therapy alone. Limited data exist comparing the outcomes between CRT with pacemaker (CRT-P) and with defibrillator (CRT-D). We aimed to investigate the long-term prognosis of patients who received CRT-P or CRT-D. METHODS AND RESULTS: Data were prospectively collected from consecutive patients with standard indications for CRT, who were implanted at a single large tertiary centre between 2008 and 2012...
October 16, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29036292/association-between-implantable-cardioverter-defibrillator-therapy-and-different-lead-positions-in-patients-with-cardiac-resynchronization-therapy
#2
Mads Brix Kronborg, Jens Brock Johansen, Jens Haarbo, Sam Riahi, Berit Thornvig Philbert, Ole Dan Jørgensen, Jens Cosedis Nielsen
Aims: To evaluate the impact of different right and left ventricular lead positions (RV-LP and LV-LP) on the risk of therapy for ventricular tachycardia/ventricular fibrillation in patients with a cardiac resynchronization therapy device (CRT-D). Methods and results: We performed a large nationwide cohort study on patients in Denmark receiving a CRT-D device from 2008 to 2012 from the Danish Pacemaker and implantable cardioverter defibrillator (ICD) registry. Lead positions were registered during the implantation and categorized as anterior/lateral/posterior and basal/mid-ventricular/apical for the LV-LP, and as apical/non-apical for the RV-LP...
September 27, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29030923/does-cardiac-resynchronization-therapy-restore-peripheral-circulatory-homeostasis
#3
Chukwudiebube N Ajaero, Cher-Rin Chong, Nathan E K Procter, Saifei Liu, Yuliy Y Chirkov, Tamila Heresztyn, Wai Ping Alicia Chan, Margaret A Arstall, Andrew D McGavigan, Michael P Frenneaux, John D Horowitz
AIMS: To evaluate whether peripheral circulatory 'remodelling' as measured by changes in vascular compliance and in markers of nitric oxide signalling contributes to patient response to cardiac resynchronization therapy (CRT). METHODS AND RESULTS: Effects of CRT were evaluated in 33 patients pre-procedure and 6 months post-procedure. Peak oxygen consumption, 6 min walk distance, New York Heart Association class, and quality of life score were evaluated. Augmentation index and its interactions with nitric oxide (NO) were evaluated by applanation tonometry...
October 13, 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29030709/bleeding-risk-of-submuscular-icd-implantation-with-continued-oral-anticoagulation-versus-heparin-bridging-therapy
#4
Simon Pecha, Ayhan Ayikli, Iris Wilke, Samer Hakmi, Yalin Yildirim, Nils Gosau, Hermann Reichenspurner, Stephan Willems, Muhammet Ali Aydin
Recent studies have shown that subcutaneous or subfascial pacemaker- and ICD implantation with continued oral anticoagulation therapy is associated with lower risk for bleeding complications, when compared to heparin bridging strategies. However, ICD generators are often implanted submuscularly. We therefore compared the bleeding risk with continued phenprocoumon therapy vs. heparin bridging in patients receiving submuscular ICD implantation. Between 01/2013 and 12/2013, 104 patients with need for oral anticoagulation received submuscular ICD or CRT-D implantation in our institution...
October 13, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/29028784/manufacturer-change-and-risk-of-system-related-complications-after-implantable-cardioverter-defibrillator-replacement-physicians-survey-and-data-from-the-detect-long-term-complications-after-implantable-cardioverter-defibrillator-replacement-registry
#5
Mauro Biffi, Endrj Menardi, Maria L Narducci, Ernesto Ammendola, Loredana Messano, Fabrizio Giofrè, Claudia Baiocchi, Davide Saporito, Fabio Lissoni, Matteo Bertini, Attilio Pierantozzi, Gianluca Zingarini, Maurizio Malacrida, Matteo Ziacchi
AIMS: Some barriers seem to exist in changing implantable cardioverter defibrillator (ICD) manufacturer at the time of device replacement. We sought to understand the obstacles to changing ICD manufacturer within the cohort of patients enrolled in the Detect Long-term Complications After ICD Replacement Registry. METHODS: We analyzed 784 consecutive ICD/cardiac resynchronization therapy defibrillator (CRT-D) device replacements within a 1.5-year time-frame in 36 Italian centers to evaluate potential factors associated with changing manufacturers and system-related complications...
October 11, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29023821/optimization-of-coronary-sinus-lead-placement-targeted-to-the-longest-right-to-left-delay-in-patients-undergoing-cardiac-resynchronization-therapy-the-optimal-pacing-site-2-opsite-2-acute-study-and-protocol
#6
D Oddone, D Solari, R Nangah, G Arena, R Mureddu, D Giorgi, G Allocca, N Bottoni, G Senatore, M Giaccardi, M Giammaria, E Marra, M Laffi, E Cipolla, F Di Lorenzo, R Carpi, M Brignole
AIMS: Left ventricular (LV) lead positioning at the site of delayed electrical activation is associated with better response to cardiac resynchronization therapy (CRT). We hypothesized that a long electrical conduction delay between RV and CS leads during RV pacing (RLD index) is correlated with a better clinical outcome METHODS AND RESULTS: RLD is measured intra-procedurally, during RV pacing, as the time interval between the intracardiac electrograms of RV and CS leads. Initially, we did a prove-of-concept, feasibility, acute study in 97 patients who underwent CRT implantation...
October 11, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29016821/super-response-to-cardiac-resynchronization-therapy-reduces-appropriate-implantable-cardioverter-defibrillator-therapy
#7
Ammar M Killu, Anna Mazo, Avishay Grupper, Malini Madhavan, Tracy Webster, Kelly L Brooke, David O Hodge, Samuel J Asirvatham, Paul A Friedman, Michael Glikson, Yong-Mei Cha
Aims: To determine the frequency of implantable cardioverter defibrillator (ICD) therapy following cardiac resynchronization therapy (CRT-D) implantation in super and non-super responders and whether greater improvement in left ventricular (LV) function after CRT is associated with a reduced burden in ICD therapy. Methods and results: This is a two-centre, retrospective study between January 2002 and September 2011. Patients were classified as non-super responders and super-responders based on the post-CRT ejection fraction (EF) of < 50% and ≥50%, respectively...
August 4, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016784/sex-differences-in-outcomes-of-primary-prevention-implantable-cardioverter-defibrillator-therapy-combined-registry-data-from-eleven-european-countries
#8
Christian Sticherling, Barbora Arendacka, Jesper Hastrup Svendsen, Sofieke Wijers, Tim Friede, Jochem Stockinger, Michael Dommasch, Bela Merkely, Rik Willems, Andrzej Lubinski, Michael Scharfe, Frieder Braunschweig, Martin Svetlosak, Christine S Zürn, Heikki Huikuri, Panagiota Flevari, Caspar Lund-Andersen, Beat A Schaer, Anton E Tuinenburg, Leonard Bergau, Georg Schmidt, Gabor Szeplaki, Bert Vanderberk, Emilia Kowalczyk, Christian Eick, Juhani Juntilla, David Conen, Markus Zabel
Aims: Therapy with an implantable cardioverter defibrillator (ICD) is established for the prevention of sudden cardiac death (SCD) in high risk patients. We aimed to determine the effectiveness of primary prevention ICD therapy by analysing registry data from 14 centres in 11 European countries compiled between 2002 and 2014, with emphasis on outcomes in women who have been underrepresented in all trials. Methods and results: Retrospective data of 14 local registries of primary prevention ICD implantations between 2002 and 2014 were compiled in a central database...
June 28, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28993847/vitamin%C3%A2-d-deficiency-and-functional-response-to-crt-in%C3%A2-heart-failure-patients
#9
A Separham, L Pourafkari, B Kazemi, Y Haghizadeh, F Akbarzadeh, M Toufan, H Sate, N D Nader
BACKGROUND: Vitamin D deficiency has been associated with a poor outcome in patients with heart failure (HF). We examined the role of vitamin D in the response of HF patients to cardiac resynchronization therapy (CRT). METHODS: The study comprised 50 patients (30 men and 20 women) with HF undergoing CRT implantation who were prospectively enrolled. Response to CRT was defined as a combination of ≥15% reduction in left ventricular end-systolic volume (LVESV) and ≥10% improvement in the 6‑Minute Walk Test within 6 months...
October 9, 2017: Herz
https://www.readbyqxmd.com/read/28960867/clinical-presentation-at-first-heart-failure-hospitalization-does-not-predict-recurrent-heart-failure-admission
#10
Annamaria Kosztin, Jason Costa, Arthur J Moss, Yitschak Biton, Vivien Klaudia Nagy, Scott D Solomon, Laszlo Geller, Scott McNitt, Bronislava Polonsky, Bela Merkely, Valentina Kutyifa
AIMS: There are limited data on whether clinical presentation at first heart failure (HF) hospitalization predicts recurrent HF events. We aimed to assess predictors of recurrent HF hospitalizations in mild HF patients with an implantable cardioverter defibrillator or cardiac resynchronization therapy with defibrillator. METHODS AND RESULTS: Data on HF hospitalizations were prospectively collected for patients enrolled in MADIT-CRT. Predictors of recurrent HF hospitalization (HF2) after the first HF hospitalization were assessed using Cox proportional hazards regression models including baseline covariates and clinical presentation or management at first HF hospitalization...
June 17, 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28960621/survival-outcomes-for-postoperative-chemoradiation-in-intermediate-risk-oral-tongue-cancers
#11
Michael T Spiotto, Gina D Jefferson, Barry Wenig, Michael R Markiewicz, Ralph R Weichselbaum, Matthew Koshy
BACKGROUND: The survival outcomes for surgery + postoperative radiotherapy (S+RT) or surgery + postoperative chemoradiation (S+CRT) was compared in patients having oral tongue cancers with intermediate-risk pathological features. METHODS: Using the National Cancer Database (NCDB), overall survival (OS) for S+RT or S+CRT was estimated using the Kaplan-Meier methods and Cox proportional hazard models in the entire population (n = 2803) and in a propensity-matched cohort (n = 1136)...
September 27, 2017: Head & Neck
https://www.readbyqxmd.com/read/28940909/postimplantation-ventricular-ectopic-burden-and-clinical-outcomes-in-cardiac-resynchronization-therapy-defibrillator-patients-a-madit-crt-substudy
#12
Anne-Christine Ruwald, Mehmet K Aktas, Martin H Ruwald, Valentina Kutyifa, Scott McNitt, Christian Jons, Suneet Mittal, Jonathan S Steinberg, James P Daubert, Arthur J Moss, Wojciech Zareba
BACKGROUND: Frequent ventricular ectopy on preimplantation Holter has been associated with attenuated benefit from cardiac resynchronization therapy (CRT). However, it is unclear whether ectopic burden measured post-CRT implantation can be utilized to evaluate long-term prognosis. We aimed to describe the association between post-CRT implantation ectopic burden and subsequent risk of clinical outcomes. METHODS: At the 12-month follow-up visit, 24-hour Holter recordings were performed in 698 CRT-D patients from the MADIT-CRT study...
September 20, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28937147/comparison-of-effectiveness-and-safety-between-conbercept-and-ranibizumab-for-treatment-of-neovascular-age-related-macular-degeneration-a-retrospective-case-controlled-non-inferiority-multiple-center-study
#13
J Cui, D Sun, H Lu, R Dai, L Xing, H Dong, L Wang, D Wei, B Jiang, Y Jiao, M M Jablonski, S Charles, W Gu, H Chen
PurposeTo compare the efficacy and safety of conbercept and ranibizumab when administered according to a treat-and-extend (TREX) protocol for the treatment of neovascular age-related macular degeneration (AMD) in China.Patients and methodsBetween May 2014 and May 2015, 180 patients were treated in a 1 : 1 ratio using conbercept or ranibizumab from four hospitals. Patients received either conbercept 0.5 mg or ranibizumab 0.5 mg intravitreal injections. Follow-up time was 1 year and treated based on a TREX approach...
September 22, 2017: Eye
https://www.readbyqxmd.com/read/28930627/fitness-body-composition-and-vascular-health-in-adolescent-and-young-adult-survivors-of-paediatric-brain-cancer-and-cranial-radiotherapy
#14
Treya M Long, Shoshana R Rath, Tessa D Maroni, Karen E Wallman, Helen C Atkinson, Nicholas G Gottardo, Catherine H Cole, Catherine S Choong, Louise H Naylor
Background Survivors of paediatric brain cancer and/or cranial radiotherapy (CRT) are at an increased risk of developing serious comorbidities. Established risk factors for chronic disease include central obesity, endothelial abnormalities and diminished fitness. Objectives Here we characterised anthropometry, body composition, bone mineral density (BMD), heart rate (HR), blood pressure (BP), endothelial function, muscular strength and endurance and aerobic fitness in adolescent and young adult (AYA) survivors...
September 20, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28917559/predictors-and-outcomes-of-cardiac-resynchronization-therapy-extended-to-the-second-generator
#15
Xuping Li, Dachun Yang, Fred Kusumoto, Win-Guang Shen, Siva Mulpuru, Shenghua Zhou, Jinjun Liang, Gang Wu, Mei Yang, Jin-Qu Liu, Paul A Friedman, Yong-Mei Cha
BACKGROUND: A proportion of patients who receive cardiac resynchronization therapy with defibrillator (CRT-D) live to receive a second generator. Controversy exists on whether an implantable cardioverter-defibrillator (ICD) should be offered to patients who have normalized or near-normalized left ventricular ejection fraction (LVEF) at the time of generator replacement (GR). OBJECTIVE: The purpose of this study was to evaluate incidence of appropriate ICD therapy after CRT-D GR...
September 14, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28916914/the-effects-of-protein-and-fiber-content-on-gut-structure-and-function-in-zebrafish-danio-rerio
#16
Samantha C Leigh, Bao-Quang Nguyen-Phuc, Donovan P German
Chemical reactor theory (CRT) suggests that the digestive tract functions as a chemical reactor for processing food. Presumably, gut structure and function should match diet to ensure adequate nutrient and energy uptake to maintain performance. Within CRT, dietary biochemical composition is the most important factor affecting gut structure and function in vertebrates. We fed Danio rerio (zebrafish) diets ranging from high- to moderate- to low-quality (i.e., ranging from high-protein, low-fiber to low-protein, high-fiber), and observed how gut length and surface area, as well as the activity levels of digestive enzymes (amylase, maltase, trypsin, aminopeptidase, and lipase) shifted in response to these dietary changes...
September 15, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28893549/continuous-optimization-of-cardiac-resynchronization-therapy-reduces-atrial-fibrillation-in-heart-failure-patients-results-of-the-adaptive-cardiac-resynchronization-therapy-trial
#17
David Birnie, Harrison Hudnall, Bernd Lemke, Kazutaka Aonuma, Kathy Lai-Fun Lee, Maurizio Gasparini, John Gorcsan, Jeffrey Cerkvenik, David O Martin
BACKGROUND: Data from randomized trials have suggested a modest or no effect of conventional cardiac resynchronization therapy (convCRT) on the incidence of atrial fibrillation (AF). AdaptivCRT (aCRT, Medtronic, Mounds View, MN) is a recently described algorithm for synchronized left ventricular (LV) pacing and continuous optimization of cardiac resynchronization therapy (CRT). OBJECTIVE: We compared the long-term effects of aCRT with convCRT pacing on the incidence of AF...
September 8, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28890823/does-lymphocyte-to-monocyte-ratio-before-during-or-after-definitive-chemoradiation-for-locally-advanced-pancreatic-cancer-predict-for-clinical-outcomes
#18
Irene Giacomelli, Daniele Scartoni, Homan Mohammadi, William F Regine, Michael D Chuong
BACKGROUND: Elevated pre-treatment lymphocyte (L) to monocyte (M) ratio (LMR) in peripheral blood has been suggested to correlate with improved survival in some malignancies, but data in the context of pancreatic cancer (PC) is limited. The aim of this study was to evaluate the prognostic significance of LMR before, during and after definitive chemoradiotherapy (CRT) for locally advanced pancreatic cancer (LAPC). METHODS: We retrospectively reviewed 57 patients with LAPC treated with definitive CRT at a single institution from 2005 to 2013...
August 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28890820/a-margin-distance-analysis-of-the-impact-of-adjuvant-chemoradiation-on-survival-after-pancreatoduodenectomy-for-pancreatic-adenocarcinoma
#19
Lee M Ocuin, Jennifer L Miller-Ocuin, Mazen S Zenati, John A Vargo, Aatur D Singhi, Steven A Burton, Nathan Bahary, Melissa E Hogg, Herbert J Zeh, Amer H Zureikat
BACKGROUND: The role of adjuvant chemoradiotherapy (CRT) following pancreaticoduodenectomy (PD) for pancreatic adenocarcinoma (PDA) remains controversial. Recent data suggest that increased margin clearance (MC: distance between tumor and cut surface) is associated with improved survival after PD, but the role of adjuvant CRT in patients with known MC is undefined. We sought to delineate the impact of adjuvant CRT on survival based on MC following PD. METHODS: Patients who underwent PD for PDA between 2002 and 2014 were retrospectively stratified into three groups based on MC: 0 mm, ≤1 mm, and >1 mm...
August 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28877505/mapping-the-er-interactome-the-p-domains-of-calnexin-and-calreticulin-as-plurivalent-adapters-for-foldases-and-chaperones
#20
Guennadi Kozlov, Juliana Muñoz-Escobar, Karla Castro, Kalle Gehring
The lectin chaperones calreticulin (CRT) and calnexin (CNX) contribute to the folding of glycoproteins in the ER by recruiting foldases such as the protein disulfide isomerase ERp57 and the peptidyl prolyl cis-trans isomerase CypB. Recently, CRT was shown to interact with the chaperone ERp29. Here, we show that ERp29 directly binds to the P domain of CNX. Crystal structures of the D domain of ERp29 in complex with the P domains from CRT and calmegin, a tissue-specific CNX homolog, reveal a commonality in the mechanism of binding whereby the tip of the P domain functions as a plurivalent adapter to bind a variety of folding factors...
September 5, 2017: Structure
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