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https://www.readbyqxmd.com/read/27906653/longer-left-ventricular-electric-delay-reduces-mitral-regurgitation-after-cardiac-resynchronization-therapy-mechanistic-insights-from-the-smart-av-study-smartdelay-determined-av-optimization-a-comparison-to-other-av-delay-methods-used-in-cardiac-resynchronization
#1
Neal A Chatterjee, Michael R Gold, Alan D Waggoner, Michael H Picard, Kenneth M Stein, Yinghong Yu, Timothy E Meyer, Nicholas Wold, Kenneth A Ellenbogen, Jagmeet P Singh
BACKGROUND: Mitral regurgitation (MR) is associated with worse survival in those undergoing cardiac resynchronization therapy (CRT). Left ventricular (LV) lead position in CRT may ameliorate mechanisms of MR. We examine the association between a longer LV electric delay (QLV) at the LV stimulation site and MR reduction after CRT. METHODS AND RESULTS: QLV was assessed retrospectively in 426 patients enrolled in the SMART-AV study (SmartDelay Determined AV Optimization: A Comparison to Other AV Delay Methods Used in CRT)...
November 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27903393/-a-multi-center-study-on-the-long-term-mortality-and-related-risk-factors-in-patients-with-chronic-heart-failure-receiving-resynchronization-therapy
#2
S Y Qi, D M Wang, H B Yu, C Ding, F L Tian, L S Ru, J Li, B Zhang, Y L Han
Objective: To analyze long-term mortality and patients characteristics of cardiac resynchronization therapy (CRT) for patients with chronic heart failure. Methods: In-patients with chronic heart failure who received CRT in the three medical centers(Bethune International Peace Hospital, General Hospital of Shenyang Military Command of Chinese People's Liberation Army, and 251 Hospital of People's Liberation Army)from March 2001 to June 2013 were included.Mortality and related causes, echocardiographic parameters were analyzed...
November 24, 2016: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/27890475/slowed-dark-adaptation-in-older-eyes-effect-of-location
#3
Humza J Tahir, Elena Rodrigo-Diaz, Neil R A Parry, Jeremiah M F Kelly, D Carden, Ian J Murray
PURPOSE: The rate of rod sensitivity recovery following a photobleach is a basic measure of the integrity of the outer retina. Rods are selectively impaired in aging and many disorders of the retina, notably Age-Related Macular Degeneration (AMD). It is not known for certain whether the age-related deficit is a pan-retinal effect or if there are localised regions of impaired rod function. To address this important issue a dual arc stimulus was developed that samples sensitivity recovery in two retinal locations...
November 24, 2016: Experimental Eye Research
https://www.readbyqxmd.com/read/27886920/why-we-have-to-use-cardiac-resynchronization-therapy-pacemaker-more
#4
REVIEW
Jean-Claude Daubert, Raphaël Martins, Christophe Leclercq
Both cardiac resynchronization therapy with a pacemaker (CRT-P) and with a biventricular implantable cardioverter-defibrillator (CRT-D) are electrical treatment modalities validated for the management of chronic heart failure. There is no strong scientific evidence that a CRT-D must be offered to all candidates. Common sense should limit the prescription of these costly and complicated devices. The choice of CRT-P is currently acceptable. A direction to explore could be to downgrade from CRT-D to CRT-P at the time of battery depletion in patients with large reverse remodeling and no ventricular tachycardia and ventricular fibrillation detected...
January 2017: Heart Failure Clinics
https://www.readbyqxmd.com/read/27885751/effect-of-pr-interval-on-outcomes-following-cardiac-resynchronization-therapy-a-secondary-analysis-of-the-companion-trial
#5
Jeffrey Lin, Kevin A Buhr, Ryan Kipp
BACKGROUND: Prolonged PR intervals may impair atrioventricular mechanical coupling and adversely affect cardiac performance. We hypothesize that patients with advanced systolic heart failure, wide QRS complexes, and prolonged PR intervals will have improved survival from CRT-D regardless of whether LBBB or non-LBBB is present. METHODS AND RESULTS: A total of 308 patients enrolled in the OPT and and 595 patients in the CRT-D arms of the COMPANION trial were stratified according to normal (≤230 ms) or prolonged PR interval (>230 ms)...
November 25, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27862594/three-dimensional-electroanatomic-mapping-system-enhanced-cardiac-resynchronization-therapy-device-implantation-results-from-a-multicenter-registry
#6
M Del Greco, M Maines, M Marini, A Colella, M Zecchin, L Vitali-Serdoz, A Blandino, L Barbonaglia, G Allocca, R Mureddu, B Marenna, P Rossi, D Vaccari, R Chianca, S Indiani, I DI Matteo, C Angheben, A Zorzi
INTRODUCTION: Cardiac resynchronization therapy (CRT) device implantation guided by an electroanatomic mapping system (EAMS) is an emerging technique that may reduce fluoroscopy and angiography use and provide information on coronary sinus (CS) electrical activation. We evaluated the outcome of the EAMS-guided CRT implantation technique in a multicenter registry. METHODS: During the period 2011-2014 we enrolled 125 patients (80% males, age 74 [71-77] years) who underwent CRT implantation by using the EnSite NavX system to create geometric models of the patient's cardiac chambers, build activation mapping of the CS and guide leads positioning...
November 9, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27856539/left-ventricular-dimensions-predict-risk-of-appropriate-shocks-but-not-mortality-in-cardiac-resynchronization-therapy-defibrillator-recipients-with-left-bundle-branch-block-and-non-ischemic-cardiomyopathy
#7
Evan C Adelstein, David Schwartzman, Sandeep Jain, Raveen Bazaz, Norman C Wang, Samir Saba
AIMS: Patients with non-ischaemic cardiomyopathy (NICM) and left bundle-branch block (LBBB) often benefit markedly from cardiac resynchronization therapy (CRT). Cardiac resynchronization therapy responders have a lower risk of appropriate device shocks from CRT-defibrillators (CRT-D) than do non-responders. Larger baseline left ventricular (LV) dimensions may be associated with less CRT response and thus greater risk of appropriate shocks. METHODS AND RESULTS: We analysed all (n = 249; 55% female) primary prevention CRT-D recipients at our institution with LBBB, NICM, and measured LV dimensions prior to device implant for the outcomes of (i) appropriate shocks, (ii) any appropriate tachyarrhythmia therapies, and (iii) risk of death, transplant, or left ventricular assist device (LVAD)...
November 17, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27856262/association-between-renal-function-and-chemotherapy-related-toxicity-in-older-adults-with-cancer
#8
Lindsay L Peterson, Arti Hurria, Tao Feng, Supriya G Mohile, Cynthia Owusu, Heidi D Klepin, Cary P Gross, Stuart M Lichtman, Ajeet Gajra, Ilya Glezerman, Vani Katheria, Laura Zavala, David D Smith, Can-Lan Sun, William P Tew
PURPOSE: To evaluate the association between renal function (RF) and chemotherapy-related toxicity (CRT) in older adults with cancer and to compare the effect of different RF formulas and body weight measurements on this association. METHODS: This is a secondary analysis of data from a prospective multicenter study of patients ≥ age 65 who were starting a new chemotherapy regimen. RF was estimated with 4 formulas (modified Jelliffe [Jelliffe], Cockcroft-Gault [CG], Wright, and Modification of Diet in Renal Disease [MDRD]), using actual, ideal and adjusted body weights for 492 patients...
November 14, 2016: Journal of Geriatric Oncology
https://www.readbyqxmd.com/read/27847638/aflibercept-in-branch-retinal-vein-occlusion-as-second-line-therapy-clinical-outcome-12%C3%A2-months-after-changing-treatment-from-bevacizumab-ranibizumab-a-pilot-study
#9
Magdalena A Wirth, Matthias D Becker, Nicole Graf, Stephan Michels
PURPOSE: To evaluate the effect of aflibercept (as second line therapy) on the clinical outcome in patients with chronic macular edema secondary to branch retinal vein occlusion (BRVO) insufficiently responding to prior treatment with bevacizumab and/or ranibizumab. METHODS: Ten eyes of ten patients (n = 10) with chronic macular edema secondary to BRVO were included in a retrospective analysis. These patients received aflibercept after an insufficient response to treatment with ranibizumab and/- or bevacizumab...
2016: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/27845566/the-potential-predictive-value-of-mri-and-pet-ct-in-mucinous-and-nonmucinous-rectal-cancer-to-identify-patients-at-high-risk-of-metastatic-disease
#10
Brunella Barbaro, Lucia Leccisotti, Fabio M Vecchio, Marialuisa Di Matteo, Teresa Serra, Marco Salsano, Andrea Poscia, Claudio Coco, Roberto Persiani, Sergio Alfieri, Maria Antonietta Gambacorta, Vincenzo Valentini, Alessandro Giordano, Lorenzo Bonomo
OBJECTIVES: To correlate imaging parameters from baseline magnetic resonance imaging (MRI)-diffusion-weighted imaging (DWI) and -2-fluoro-2-deoxy-D-glucose (FDG) positron emission tomography-computed tomography (PET-CT) with synchronous and metachronous metastases in mucinous (MC) and nonmucinous (NMC) rectal cancer. METHODS: 111 patients with extraperitoneal locally advanced rectal cancer who underwent pelvic MRI, DWI and FDG PET-CT were stratified into MC (n=23) and NMC (n=88)...
November 15, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27824494/forensic-3d-visualization-of-ct-data-using-cinematic-volume-rendering-a-preliminary-study
#11
Lars C Ebert, Wolf Schweitzer, Dominic Gascho, Thomas D Ruder, Patricia M Flach, Michael J Thali, Garyfalia Ampanozi
OBJECTIVE: The 3D volume-rendering technique (VRT) is commonly used in forensic radiology. Its main function is to explain medical findings to state attorneys, judges, or police representatives. New visualization algorithms permit the generation of almost photorealistic volume renderings of CT datasets. The objective of this study is to present and compare a variety of radiologic findings to illustrate the differences between and the advantages and limitations of the current VRT and the physically based cinematic rendering technique (CRT)...
November 8, 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/27823599/relation-of-body-mass-index-to-long-term-survival-after-cardiac-resynchronization-therapy
#12
E Wilson Grandin, Alison Wand, Payman Zamani, J Eduardo Rame, Ralph J Verdino
Obesity confers a paradoxical survival benefit in patients with heart failure, but this obesity paradox has not been well established in those who have undergone cardiac resynchronization therapy with a defibrillator (CRT-D). We sought to determine the impact of body mass index (BMI) on long-term survival in patients with heart failure after CRT-D. We identified 113 patients implanted with CRT-D at our institution from May 2002 to November 2003. Patients were divided into 3 categories by pre-implant BMI (kg/m(2)): normal weight (BMI <25), overweight (BMI 25-29), and obese (BMI ≥30)...
September 15, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27808410/effect-of-significant-weight-change-on-inappropriate-implantable-cardioverter-defibrillator-therapy
#13
Usama Daimee, Yitschak Biton, Mehmet K Aktas, Faiez Zannad, Helmut Klein, Barbara Szepietowska, Scott McNitt, Bronislava Polonsky, Paul J Wang, Wojciech Zareba, Arthur J Moss, Valentina Kutyifa
BACKGROUND: Weight loss has been associated with adverse outcomes among heart failure (HF) patients, including those receiving cardiac resynchronization therapy with defibrillator (CRT-D). The effect of significant weight change on inappropriate implantable cardioverter-defibrillator (ICD) therapy among CRT-D patients is not well understood. METHODS: We evaluated the impact of significant weight change at 1 year on subsequent inappropriate ICD therapy during follow-up among 993 CRT-D patients enrolled in MADIT-CRT...
November 3, 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27803598/predictors-of-adjuvant-treatment-for-pancreatic-adenocarcinoma-at-the-population-level
#14
D J Kagedan, M E Dixon, R S Raju, Q Li, M Elmi, E Shin, N Liu, A El-Sedfy, L Paszat, A Kiss, C C Earle, N Mittmann, N G Coburn
BACKGROUND: In the present study, we aimed to describe, at the population level, patterns of adjuvant treatment use after curative-intent resection for pancreatic adenocarcinoma (pcc) and to identify independent predictors of adjuvant treatment use. METHODS: In this observational cohort study, patients undergoing pcc resection in the province of Ontario (population 13 million) during 2005-2010 were identified using the provincial cancer registry and were linked to administrative databases that include all treatments received and outcomes experienced in the province...
October 2016: Current Oncology
https://www.readbyqxmd.com/read/27798759/soluble-st2-and-risk-of-arrhythmias-heart-failure-or-death-in-patients-with-mildly-symptomatic-heart-failure-results-from-madit-crt
#15
Hicham Skali, Robert Gerwien, Timothy E Meyer, James V Snider, Scott D Solomon, Craig M Stolen
Soluble ST2 is an established biomarker of heart failure (HF) progression. Data about its prognostic implications in patients with mildly symptomatic HF eligible to receive cardiac resynchronization therapy defibrillators (CRT-D) are limited. In a cohort of 684 patients enrolled in Multicenter Automated Defibrillator Implantation Trial (MADIT)-CRT, levels of soluble ST2 (sST2) were serially assessed at baseline and 1 year (n = 410). In multivariable-adjusted models, elevated baseline sST2 was associated with an increased risk of death, death or HF, and death or ventricular arrhythmia (VA) even when adjusting for baseline brain natriuretic protein (BNP) levels...
October 31, 2016: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/27785663/impact-of-new-x-ray-technology-on-patient-dose-in-pacemaker-and-implantable-cardioverter-defibrillator-icd-implantations
#16
Joris D van Dijk, Jan Paul Ottervanger, Peter Paul H M Delnoy, Martine C M Lagerweij, Siert Knollema, Cornelis H Slump, Pieter L Jager
PURPOSE: New X-ray technology providing new image processing techniques may reduce radiation exposure. The aim of this study was to quantify this radiation exposure reduction for patients during pacemaker and implantable cardioverter defibrillator (ICD) implantation. METHODS: In this retrospective study, 1185 consecutive patients who had undergone de novo pacemaker or ICD implantation during a 2-year period were included. All implantations in the first year were performed using the reference technology (Allura Xper), whereas in the second year, the new X-ray technology (AlluraClarity) was used...
October 26, 2016: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/27760795/association-between-a-prolonged-pr-interval-and-outcomes-of-cardiac-resynchronization-therapy-a-report-from-the-national-cardiovascular-data-registry
#17
Daniel J Friedman, Haikun Bao, Erica S Spatz, Jeptha P Curtis, James P Daubert, Sana M Al-Khatib
BACKGROUND: -A prolonged PR interval is common among cardiac resynchronization therapy (CRT) candidates; however, the association between PR interval and outcomes is unclear, and data are conflicting. METHODS: -We conducted inverse probability weighted (IPW) analyses of 26,451 CRT eligible (EF≤35, QRS≥120ms) patients from the National Cardiovascular Data Registry ICD Registry to assess the association between a prolonged PR interval (≥230ms), receipt of CRT with defibrillator (CRT-D) versus implantable cardioverter defibrillator (ICD), and outcomes...
October 19, 2016: Circulation
https://www.readbyqxmd.com/read/27756040/predictors-of-response-to-cardiac-resynchronization-therapy-a-systematic-review
#18
John Rickard, Henry Michtalik, Ritu Sharma, Zackary Berger, Emmanuel Iyoha, Ariel R Green, Nowreen Haq, Karen A Robinson
BACKGROUND: Multiple studies have sought to determine variables associated with improved "response" to cardiac resynchronization therapy(CRT). Such variables, however, are often derived from inadequately controlled, single center cohort studies calling external validity into question. We sought to determine predictors of response to CRT-D and CRT-P utilizing the methods of systematic review. METHODS: We searched MEDLINE, Embase®, and the Cochrane Central Register of Controlled Trials (CENTRAL) from January 1, 1995, as this is the date of first article reporting use of CRT through October 20, 2014...
September 25, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27743888/heart-dose-is-an-independent-dosimetric-predictor-of-overall-survival-in-locally-advanced-non-small-cell-lung-cancer
#19
Christina K Speirs, Todd A DeWees, Sana Rehman, Alerson Molotievschi, Maria A Velez, Daniel Mullen, Sandra Fergus, Marco Trovo, Jeffrey D Bradley, Cliff G Robinson
INTRODUCTION: In the randomized trial of standard- versus high-dose chemoradiotherapy for locally advanced (LA) NSCLC (Radiation Therapy Oncology Group 0617), overall survival (OS) was worse in the high-dose arm. Although heart dose was suggested as a contributing factor, actionable parameters have not been established. We present an analysis of clinical and dosimetric parameters affecting OS in this patient population, focusing on heart dose. METHODS: Clinical data were collected on 416 patients with LA NSCLC treated at a single institution, with a subset of 333 available treatment plans recontoured using Radiation Therapy Oncology Group 0617 normal tissue guidelines...
October 12, 2016: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/27733457/morbidity-and-mortality-with-cardiac-resynchronization-therapy-with-pacing-vs-with-defibrillation-in-octogenarian-patients-in-a-real-world-setting
#20
Avishag Laish-Farkash, Sharon Bruoha, Amos Katz, Ilan Goldenberg, Mahmoud Suleiman, Yoav Michowitz, Nir Shlomo, Michal Einhorn-Cohen, Vladimir Khalameizer
AIMS: Cardiac resynchronization therapy (CRT) with a defibrillator (CRT-D) has downsides of high cost and inappropriate shocks compared to CRT without a defibrillator (CRT-P). Recent data suggest that the survival benefit of implantable cardioverter defibrillator (ICD) therapy is attenuated in the older age group. We hypothesized that, among octogenarians eligible for cardiac resynchronization therapy, CRT-P confers similar morbidity and mortality benefits as CRT-D. METHODS AND RESULTS: We compared morbidity and mortality outcomes between consecutive octogenarian patients eligible for CRT therapy who underwent CRT-P implantation at Barzilai MC (n = 142) vs...
October 12, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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