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Heart failure, cardiac transplant,

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https://www.readbyqxmd.com/read/28629552/comparative-analysis-of-four-scores-to-stratify-patients-with-heart-failure-and-reduced-ejection-fraction
#1
Pedro Freitas, Carlos Aguiar, António Ferreira, António Tralhão, António Ventosa, Miguel Mendes
There are several prognostic risk scores available for patients with heart failure with reduced ejection fraction (HFrEF) that can aid in the decision of listing candidates for heart transplant (HTx). A direct comparison between these scores has not been performed. Therefore, our objective was to evaluate the calibration and discriminative power of 4 contemporary HF scores. A retrospective analysis of 259 patients with HFrEF who underwent cardiopulmonary exercise test was conducted. The Heart Failure Survival Score (HFSS), Seattle Heart Failure Model (SHFM), Meta-analysis Global Group in Chronic Heart Failure (MAGGIC), and Metabolic Exercise Cardiac Kidney Index (MECKI) were compared...
May 11, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28627046/donor-specific-antibodies-are-associated-with-micro-and-macrovascular-coronary-disease-restrictive-myocardial-damage-and-poor-outcome-in-heart-transplanted-patients
#2
Tor Skibsted Clemmensen, Pernille Koefoed-Nielsen, Lis-Ann Jensen, Steen Hvitfeldt Poulsen, Niels Ramsing Holm, Brian Bridal Løgstrup, Evald Høj Christiansen, Jouke Dijkstra, Kamilla Pernille Bjerre Valen, Hans Eiskjaer
AIMS: We examined the relationship between donor-specific HLA antibody (DSA) presence and graft function, hemodynamics, cardiac allograft vasculopathy (CAV), and major adverse cardiac events (MACE) in stable long-term heart-transplanted (HTx) patients. METHODS: Sera from 79 patients (median 7.5 years after HTx) were analyzed for DSA presence. Graft function was evaluated by echocardiography and right heart catheterization. CAV-burden was determined by coronary angiography, optical coherence tomography (OCT), and coronary flow velocity reserve (CFVR)...
June 19, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28624390/nkx2-5-enhances-the-efficacy-of-mesenchymal-stem-cells-transplantation-in-treatment-heart-failure-in-rats
#3
Bo Deng, Jin Xin Wang, Xing Xing Hu, Peng Duan, Lin Wang, Yang Li, Qing Lei Zhu
AIMS: The aim of this study is to determine whether Nkx2.5 transfection of transplanted bone marrow mesenchymal stem cells (MSCs) improves the efficacy of treatment of adriamycin-induced heart failure in a rat model. MAIN METHODS: Nkx2.5 was transfected in MSCs by lentiviral vector transduction. The expressions of Nkx2.5 and cardiac specific genes in MSCs and Nkx2.5 transfected mesenchymal stem cells (MSCs-Nkx2.5) were analyzed with quantitative real-time PCR and Western blot in vitro...
June 14, 2017: Life Sciences
https://www.readbyqxmd.com/read/28612323/risk-assessment-and-outcomes-of-vasoplegia-after-cardiac-surgery
#4
Athanasios Tsiouris, Lynn Wilson, Ala S Haddadin, James J Yun, Abeel A Mangi
OBJECTIVE: The aim of this study was to analyze risk factors and outcomes of vasoplegia after cardiac surgery based on our experience with almost 2000 cardiac operations performed at our institution. METHODS: We retrospectively analyzed patients who underwent cardiac surgery with cardiopulmonary bypass (CPB) between 2011 and 2013. Data were available for a total of 1992 patients. We defined vasoplegia as hypotension with persistently low systemic vascular resistance (<800 dyn/s/cm) and preserved Cardiac Index (>2...
June 13, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28611029/whole-exome-sequencing-identifies-truncating-variants-in-nuclear-envelope-genes-in-patients-with-cardiovascular-disease
#5
Gloria T Haskell, Brian C Jensen, Leigh Ann Samsa, Daniel Marchuk, Wei Huang, Cecile Skrzynia, Christian Tilley, Bryce A Seifert, Edgar A Rivera-Muñoz, Beverly Koller, Kirk C Wilhelmsen, Jiandong Liu, Hassan Alhosaini, Karen E Weck, James P Evans, Jonathan S Berg
BACKGROUND: The genetic variation underlying many heritable forms of cardiovascular disease is incompletely understood, even in patients with strong family history or early age at onset. METHODS AND RESULTS: We used whole exome sequencing to detect pathogenic variants in 55 patients with suspected monogenic forms of cardiovascular disease. Diagnostic analysis of established disease genes identified pathogenic variants in 21.8% of cases and variants of uncertain significance in 34...
June 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28607153/2017-acc-aha-hfsa-ishlt-acp-advanced-training-statement-on-advanced-heart-failure-and-transplant-cardiology-revision-of-the-accf-aha-acp-hfsa-ishlt-2010-clinical-competence-statement-on-management-of-patients-with-advanced-heart-failure-and-cardiac-transplant
#6
REVIEW
Mariell Jessup, Mark H Drazner, Wendy Book, Joseph C Cleveland, Ira Dauber, Susan Farkas, Mahazarin Ginwalla, Jason N Katz, Peggy Kirkwood, Michelle M Kittleson, Joseph E Marine, Paul Mather, Alanna A Morris, Donna M Polk, Antoine Sakr, Kelly H Schlendorf, Esther E Vorovich
No abstract text is available yet for this article.
June 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28599279/myoblast-transplantation-improves-cardiac-function-after-myocardial-infarction-through-attenuating-inflammatory-responses
#7
Bo Wang, Likui Zhang, Hao Cao, Junqi Yang, Manya Wu, Yali Ma, Huimin Fan, Zhenzhen Zhan, Zhongmin Liu
Myocardial infarction (MI) is a highly prevalent cardiac emergency, which results in adverse cardiac remodeling and then exacerbates progressive heart failure. Inflammatory responses in cardiac tissue after MI is necessary for myocardium repair and wound healing. However, the excessive inflammation is also a key component of subsequent heart failure pathology. Myoblast transplantation after MI have been fulfilled attractive effects on cardiac repair, but the complications of transplantation and the underlying mechanisms have not been fully elucidated...
May 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28583534/pretransplant-resting-heart-rate-and-its-association-with-all-cause-mortality-in-liver-transplant-recipients
#8
H-M Kwon, I-G Jun, K-W Jung, Y-J Moon, W-J Shin, J-G Song, G-S Hwang
BACKGROUND: The importance of heart rate (HR) measurement as a prognostic factor has been recognized in many clinical conditions, such as hypertension, coronary artery disease, or heart failure. Patients with liver cirrhosis tend to have increased resting HR as consequence of hyperdynamic circulation. In the current study, we examined whether pretransplant resting increased HR is associated with overall mortality in cirrhotic patients following liver transplantation (LT). PATIENTS AND METHODS: We retrospectively collected and analyzed the data of 881 liver recipients who underwent LT surgery between October 2009 and September 2012...
June 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28580728/late-graft-failure-in-heart-transplant-recipients-incidence-risk-factors-and-clinical-outcomes
#9
Ángela López-Sainz, Eduardo Barge-Caballero, Gonzalo Barge-Caballero, David Couto-Mallón, María J Paniagua-Martin, Leticia Seoane-Quiroga, Carmen Iglesias-Gil, José M Herrera-Noreña, José J Cuenca-Castillo, José M Vázquez-Rodríguez, María G Crespo-Leiro
AIM: To analyse the incidence, risk factors and clinical outcomes of late graft failure after heart transplantation. METHODS AND RESULTS: We conducted an observational, single-centre study based on 547 patients who underwent cardiac transplantation from 1991 to 2014 and who survived the in-hospital postoperative period. Late graft failure was defined as the first hospitalization due to this condition after discharge. Over a mean follow-up of 8.4 ± 6, 178 (32...
June 5, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28580208/heart-transplantation-in-patients-with-dystrophinopathic-cardiomyopathy-review-of-the-literature-and-personal-series
#10
REVIEW
Andrea Antonio Papa, Paola D'Ambrosio, Roberta Petillo, Alberto Palladino, Luisa Politano
Cardiomyopathy associated with dystrophinopathies [Duchenne muscular dystrophy (DMD), Becker muscular dystrophy (BMD), X-linked dilated cardiomyopathy (XL-dCM) and cardiomyopathy of Duchenne/Becker (DMD/BMD) carriers] is an increasing recognized manifestation of these neuromuscular disorders and notably contributes to their morbidity and mortality. Dystrophinopathic cardiomyopathy (DCM) is the result of the dystrophin protein deficiency at the myocardium level, parallel to the deficiency occurring at the skeletal muscle level...
May 2017: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/28579248/echocardiography-derived-left-ventricular-outflow-tract-gradient-and-left-ventricular-posterior-wall-thickening-are-associated-with-outcomes-for-anatomic-repair-in-congenitally-corrected-transposition-of-the-great-arteries
#11
Shreya Moodley, Sowmya Balasubramanian, Theresa A Tacy, Frandics Chan, Frank L Hanley, Rajesh Punn
BACKGROUND: Congenitally corrected transposition of the great arteries is a rare form of congenital heart disease. Management is controversial; options include observation, physiologic repair, and anatomic repair. Assessment of morphologic left ventricle preparedness is key in timing anatomic repair. This study's purpose was to review the modalities used to assess the morphologic left ventricle preoperatively and to determine if any echocardiographic variables are associated with outcomes...
June 1, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28574157/diffuse-myocardial-fibrosis-among-healthy-pediatric-heart-transplant-recipients-correlation-of-histology-cardiovascular-magnetic-resonance-and-clinical-phenotype
#12
Brian Feingold, Cláudia M Salgado, Miguel Reyes-Múgica, Stacey E Drant, Susan A Miller, Mark Kennedy, Peter Kellman, Erik B Schelbert, Timothy C Wong
Fibrosis is commonly described in heart allografts lost late after transplantation. CMR-derived ECV is a validated measure of DMF in native adult hearts that may predict heart failure and mortality. We explored associations of ECV with histologic myocardial fibrosis and clinical features after pediatric heart transplantation. Twenty-five recipients (7.0±6.3 years at transplant and 10.7±6.5 years post-transplant) were prospectively recruited for CMR and BNP measurement at the time of surveillance biopsy...
June 2, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28540981/comparison-of-de-novo-versus-upgrade-cardiac-resynchronization-therapy-focused-on-the-upgrade-for-pacing-induced-cardiomyopathy
#13
Hye Bin Gwag, Kwang Jin Chun, Jin Kyung Hwang, Kyoung Min Park, Young Keun On, June Soo Kim, Seung Jung Park
PURPOSE: This study aimed to determine whether upgrade cardiac resynchronization therapy (CRT) shows better outcomes than de novo CRT. To do so, we compared the efficacy of CRT between de novo and upgrade groups, focusing particularly on the effect of upgrade CRT on patients with pacing-induced cardiomyopathy (PiCM). MATERIALS AND METHODS: PiCM was defined as new-onset dilated cardiomyopathy following pacemaker implantation in patients with baseline normal ejection fraction ≥50%...
July 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28523441/progress-in-the-presence-of-failure-updates-in-chronic-systolic-heart-failure-management
#14
REVIEW
Katie M Murphy, Julie L Rosenthal
The therapeutic heart failure armamentarium has evolved from drugs to transplantation to devices through further understanding of its complex pathophysiology and pathogenesis. Current medications capitalize on our evolving understanding of the sympathetic and renin-angiotensin-aldosterone systems that subsequently promote both beneficial and maladaptive responses that ultimately yield a decrease in cardiac function. Despite these advancements, the prevalence of heart failure continues to rise and carries a significant burden on our patients and health care system...
July 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28516902/role-of-transient-receptor-potential-channels-in-heart-transplantation-a-potential-novel-therapeutic-target-for-cardiac-allograft-vasculopathy
#15
Shuo Ma, Yue Jiang, Weiting Huang, Xintao Li, Shuzhuang Li
Heart transplantation has evolved as the criterion standard therapy for end-stage heart failure, but its efficacy is limited by the development of cardiac allograft vasculopathy (CAV), a unique and rapidly progressive form of atherosclerosis in heart transplant recipients. Here, we briefly review the key processes in the development of CAV during heart transplantation and highlight the roles of transient receptor potential (TRP) channels in these processes during heart transplantation. Understanding the roles of TRP channels in contributing to the key procedures for the development of CAV during heart transplantation could provide basic scientific knowledge for the development of new preventive and therapeutic approaches to manage patients with CAV after heart transplantation...
May 18, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28510318/report-from-the-american-society-of-transplantation-conference-on-donor-heart-selection-in-adult-cardiac-transplantation-in-the-u-s
#16
J Kobashigawa, K Khush, M Colvin, M Acker, A Van Bakel, H Eisen, Y Naka, J Patel, D A Baran, T Daun, M Luu, M Olymbios, J Rogers, V Jeevanandam, F Esmailian, F D Pagani, B Lima, J Stehlik
Cardiac transplantation remains the only definitive treatment for end-stage heart failure. Transplantation rates are limited by a shortage of donor hearts. This shortage is magnified because many hearts are discarded due to strict selection criteria and concern for regulatory reprimand for less than optimal post-transplant outcomes. There is no standardized approach to donor selection despite proposals to liberalize acceptance criteria. A donor heart selection conference was organized to facilitate discussion, and generate ideas for future research...
May 16, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28501318/mortality-rehospitalization-and-post-transplant-complications-in-gender-mismatched-heart-transplant-recipients
#17
Anne Jalowiec, Kathleen L Grady, Connie White-Williams
BACKGROUND: Limited research has been published on outcomes in heart transplant (HT) recipients with gender-mismatched donors. OBJECTIVE: Compare 3-year post-transplant outcomes in 2 groups of gender-mismatched HT recipients and a no-mismatch group. METHODS: Sample: 347 HT recipients: 21.3% (74) received a heart from the opposite gender: Group 1: same gender donor/recipient (273, 78.7%); Group 2: female donor/male recipient (40, 11.5%); Group 3: male donor/female recipient (34, 9...
May 10, 2017: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/28498040/pivotal-role-of-non-cardiomyocytes-in-electromechanical-and-therapeutic-potential-of-induced-pluripotent-stem-cell-derived-engineered-cardiac-tissue
#18
Hiroko Iseoka, Shigeru Miyagawa, Satsuki Fukushima, Atsuhiro Saito, Shigeo Masuda, Shin Yajima, Emiko Ito, Nagako Sougawa, Maki Takeda, Akima Harada, Jong-Kook Lee, Yoshiki Sawa
Although engineered cardiac tissues (ECTs) derived from induced pluripotent stem cells (iPSCs) are promising for myocardial regenerative therapy, the appropriate ratio of cardiomyocytes to non-cardiomyocytes is not fully understood. Here, we determined whether ECT-cell content is a key determinant of its structure/function, thereby affecting ECT therapeutic potential for advanced heart failure. Scaffold-free ECTs containing different ratios (25%, 50%, 70%, or 90%) of iPSC-derived cardiomyocytes were generated by magnetic-activated cell sorting by using cardiac-specific markers...
June 13, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28497127/evidence-of-glycolysis-up-regulation-and-pyruvate-mitochondrial-oxidation-mismatch-during-mechanical-unloading-of-the-failing-human-heart-implications-for-cardiac-reloading-and-conditioning
#19
Nikolaos A Diakos, Sutip Navankasattusas, E Dale Abel, Jared Rutter, Lauren McCreath, Peter Ferrin, Stephen H McKellar, Dylan V Miller, Song Y Park, Russell S Richardson, Ralph Deberardinis, James E Cox, Abdallah G Kfoury, Craig H Selzman, Josef Stehlik, James C Fang, Dean Y Li, Stavros G Drakos
This study sought to investigate the effects of mechanical unloading on myocardial energetics and the metabolic perturbation of heart failure (HF) in an effort to identify potential new therapeutic targets that could enhance the unloading-induced cardiac recovery. The authors prospectively examined paired human myocardial tissue procured from 31 advanced HF patients at left ventricular assist device (LVAD) implant and at heart transplant plus tissue from 11 normal donors. They identified increased post-LVAD glycolytic metabolites without a coordinate increase in early, tricarboxylic acid (TCA) cycle intermediates...
October 2016: JACC. Basic to Translational Science
https://www.readbyqxmd.com/read/28495061/high-risk-cardiac-surgery-as-an-alternative-to-transplant-or-mechanical-support-in-patients-with-end-stage-heart-failure
#20
Hiroyuki Kawajiri, Cedric Manlhiot, Heather Ross, Diego Delgado, Filio Billia, Michael McDonald, Vivek Rao
OBJECTIVE: Although the results of cardiac surgery in patients with poor left ventricular function have been widely published, the outcomes in patients with end-stage heart failure who meet criteria for advanced therapies are not well investigated. As access to transplantation and ventricular assist device therapy remains limited, we explored the possibility of conventional surgery as an alternative option for highly selected patients with end-stage heart failure. METHODS: We identified patients with left ventricular ejection fraction <20% and VO2 max <14 mL/min/m(2), who were initially referred for advanced therapies but were instead offered a conventional procedure from 2002 to 2012...
March 21, 2017: Journal of Thoracic and Cardiovascular Surgery
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