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Journal of Heart and Lung Transplantation

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https://www.readbyqxmd.com/read/28169114/coculturing-with-endothelial-cells-promotes-in-vitro-maturation-and-electrical-coupling-of-human-embryonic-stem-cell-derived-cardiomyocytes
#1
Jennifer Pasquier, Renuka Gupta, Damien Rioult, Jessica Hoarau-Véchot, Raphael Courjaret, Khaled Machaca, Jassim Al Suwaidi, Edouard G Stanley, Shahin Rafii, David A Elliott, Charbel Abi Khalil, Arash Rafii
BACKGROUND: Pluripotent human embryonic stem cells (hESC) are a promising source of repopulating cardiomyocytes. We hypothesized that we could improve maturation of cardiomyocytes and facilitate electrical interconnections by creating a model that more closely resembles heart tissue; that is, containing both endothelial cells (ECs) and cardiomyocytes. METHODS: We induced cardiomyocyte differentiation in the coculture of an hESC line expressing the cardiac reporter NKX2...
January 10, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28185711/impact-of-gastroesophageal-reflux-and-delayed-gastric-emptying-on-pediatric-lung-transplant-outcomes
#2
Fei Jamie Dy, Dawn Freiberger, Enju Liu, Debra Boyer, Gary Visner, Rachel Rosen
BACKGROUND: Gastroesophageal reflux disease is thought to predispose to adverse lung allograft outcomes. However, little is known about the burden of gastroesophageal reflux (GER) and gastroparesis in pediatric patients. In this study we describe the burden of reflux and gastroparesis in children undergoing lung transplant, and evaluates their impact on allograft survival and rejection incidence. METHODS: This study is a retrospective analysis of pediatric lung transplant recipients who had combined pH and multichannel intraluminal impedance testing (pH-MII) and gastric-emptying scans (GES)...
January 6, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28162933/screening-for-chromosomally-integrated-human-herpesvirus-6-status-in-solid-organ-donors-and-recipients
#3
LETTER
Bibhuti B Das, Flor M Munoz
No abstract text is available yet for this article.
January 6, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28162932/multicenter-evaluation-of-a-national-organ-sharing-policy-for-highly-sensitized-patients-listed-for-heart-transplantation-in-canada
#4
Brian Clarke, Anique Ducharme, Nadia Giannetti, Daniel Kim, Michael McDonald, Peter Pflugfelder, Miroslaw Rajda, Mario Sénéchal, Ellie Stadnick, Mustafa Toma, Shelley Zieroth, Debra Isaac
BACKGROUND: Transplantation of sensitized recipients has been associated with increased risk of post-transplant complications. In 2010, the Canadian Cardiac Transplant Network (CCTN) created a unique status listing for highly sensitized heart transplant candidates. Status 4S listing requires calculated panel-reactive antibody (cPRA) level >80% as the sole listing criteria and enables geographic expansion of the donor pool by providing national access. In this study, we describe patient characteristics and outcomes of those transplanted as Status 4S in Canada...
January 6, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28162931/efficacy-of-a-medication-adherence-enhancing-intervention-in-transplantation-the-maestro-tx-trial
#5
Fabienne Dobbels, Leentje De Bleser, Lut Berben, Paulus Kristanto, Lieven Dupont, Frederik Nevens, Johan Vanhaecke, Geert Verleden, Sabina De Geest
BACKGROUND: Well-designed randomized controlled trials (RCTs) testing efficacy of post-transplant medication adherence enhancing interventions and clinical outcomes are scarce. METHODS: This randomized controlled trial enrolled adult heart, liver, and lung transplant recipients who were >1 year post-transplant and on tacrolimus twice daily (convenience sample) (visit 1). After a 3-month run-in period, patients were randomly assigned 1:1 to intervention group (IG) or control group (CG) (visit 2), followed by a 6-month intervention (visits 2-4) and a 6-month adherence follow-up period (visit 5)...
January 6, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28162930/a-randomized-study-of-autologous-bone-marrow-derived-stem-cells-in-pediatric-cardiomyopathy
#6
E Sian Pincott, Deborah Ridout, Margaret Brocklesby, Angus McEwan, Vivek Muthurangu, Michael Burch
BACKGROUND: Bone marrow mononuclear cell fraction has been used as therapy for dilated cardiomyopathy in adults. Although case series are reported, there are no randomized controlled studies in children. METHODS: We designed a randomized, crossover, controlled pilot study to determine safety and feasibility of intracoronary stem cell therapy in children. The primary safety end-point was freedom from death and transplantation or any complication that could be considered related to bone marrow injection or anesthesia (e...
January 5, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28190786/survival-in-portopulmonary-hypertension-outcomes-of-the-united-kingdom-national-pulmonary-arterial-hypertension-registry
#7
Sasiharan Sithamparanathan, Arun Nair, Logan Thirugnanasothy, J Gerry Coghlan, Robin Condliffe, Konstantinos Dimopoulos, Charlie A Elliot, Andrew J Fisher, Sean Gaine, J Simon R Gibbs, Michael A Gatzoulis, Clive E Handler, Luke S Howard, Martin Johnson, David G Kiely, James L Lordan, Andrew J Peacock, Joanna Pepke-Zaba, Benjamin E Schreiber, Karen K K Sheares, Stephen J Wort, Paul A Corris
BACKGROUND: Portopulmonary hypertension (PoPH) is a rare condition associated with poor survival, and the effect of modern therapies that target pulmonary arterial hypertension (PAH) on long-term outcome is unknown. This study investigated the baseline characteristics and survival in the cohort of patients diagnosed with PoPH in the United Kingdom National Pulmonary Hypertension Service. METHODS: A retrospective review was conducted of all incident treatment-naïve patients with PoPH within the United Kingdom national registry diagnosed between January 2001 and December 2010...
December 31, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28131664/survival-and-outcomes-after-lung-transplantation-for-non-scleroderma-connective-tissue-related-interstitial-lung-disease
#8
Andrew M Courtwright, Souheil El-Chemaly, Paul F Dellaripa, Hilary J Goldberg
BACKGROUND: Patients with non-scleroderma connective tissue-related lung disease (NS-CTLD), including rheumatoid arthritis, idiopathic inflammatory myopathies, Sjögren syndrome, mixed connective tissue disease, and systemic lupus erythematosus, may be at risk for worse outcomes after lung transplantation because of immune dysregulation or extrapulmonary manifestations of their underlying disease. We compared survival, acute and chronic rejection, and extrapulmonary organ dysfunction after transplantation in patients with NS-CTLD and idiopathic pulmonary fibrosis (IPF)...
December 31, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28169115/angiotensin-ii-antagonism-is-associated-with-reduced-risk-for-gastrointestinal-bleeding-caused-by-arteriovenous-malformations-in-patients-with-left-ventricular-assist-devices
#9
Brian A Houston, Andrea L C Schneider, Joban Vaishnav, David M Cromwell, P Elliott Miller, Kamil F Faridi, Ashish Shah, Chris Sciortino, Glenn Whitman, Ryan J Tedford, Gerin R Stevens, Daniel P Judge, Stuart D Russell, Rosanne Rouf
BACKGROUND: Angiogenesis is implicated in formation of gastrointestinal arteriovenous malformations (AVMs). Angiotensin II signaling is involved in angiogenesis through the vascular endothelial growth factor (VEGF) and angiopoietin-2 pathways. We hypothesized that angiotensin-converting enzyme inhibitor (ACEI) and angiotensin receptor blocker (ARB) therapy would be associated with a reduced risk of all-cause gastrointestinal bleeding (GIB) and AVM-associated GIB in patients with left ventricular assist devices (LVADs)...
December 30, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28131666/the-utility-of-6-minute-walk-distance-in-predicting-waitlist-mortality-for-lung-transplant-candidates
#10
Anthony Castleberry, Michael S Mulvihill, Babatunde A Yerokun, Brian C Gulack, Brian Englum, Laurie Snyder, Mathias Worni, Asishana Osho, Scott Palmer, R Duane Davis, Matthew G Hartwig
BACKGROUND: The lung allocation score (LAS) has led to improved organ allocation for transplant candidates. At present, the 6-minute walk distance (6MWD) is treated as a binary categorical variable of whether or not a candidate can walk more than 150 feet in 6 minutes. In this study, we tested the hypothesis that 6MWD is presently under-utilized with respect to discriminatory power, and that, as a continuous variable, could better prognosticate risk of waitlist mortality. METHODS: A retrospective cohort analysis was performed using the Organ Procurement and Transplantation Network/United Network for Organ Sharing (OPTN/UNOS) transplant database...
December 30, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28190787/comparison-of-hemodynamic-parameters-in-treatment-na%C3%A3-ve-and-pre-treated-patients-with-pulmonary-arterial-hypertension-in-the-randomized-phase-iii-patent-1-study
#11
Nazzareno Galiè, Friedrich Grimminger, Ekkehard Grünig, Marius M Hoeper, Marc Humbert, Zhi-Cheng Jing, Anne M Keogh, David Langleben, Lewis J Rubin, Arno Fritsch, Neil Davie, Hossein-Ardeschir Ghofrani
BACKGROUND: Detailed hemodynamic data from the phase III PATENT-1 study of riociguat in patients with pulmonary arterial hypertension (PAH) were investigated. METHODS: Patients with PAH who were treatment naïve or pre-treated with endothelin receptor antagonists or non-intravenous prostanoids were randomly assigned to riociguat up to 2.5 mg 3 times a day or placebo. Hemodynamic parameters were assessed at baseline and week 12. RESULTS: Riociguat significantly decreased pulmonary vascular resistance in treatment-naïve (n = 221; least squares [LS] mean difference -266 dyne∙sec∙cm(-5) [95% confidence interval (CI) -357 to -175; p < 0...
December 24, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28209402/chemokine-receptor-patterns-and-right-heart-failure-in-mechanical-circulatory-support
#12
Aditi Nayak, Colin Neill, Robert L Kormos, Luigi Lagazzi, Indrani Halder, Charles McTiernan, Jennifer Larsen, Ana Inashvili, Jeffrey Teuteberg, Timothy N Bachman, Karen Hanley-Yanez, Dennis M McNamara, Marc A Simon
BACKGROUND: Right ventricular failure (RVF) complicates 9% to 44% of left ventricular assist device (LVAD) implants post-operatively. Current prediction scores perform only modestly in validation studies, and do not include immune markers. Chemokines are inflammatory signaling molecules with a fundamental role in cardiac physiology and stress adaptation. In this study we investigated chemokine receptor regulation in LVAD recipients who develop RVF. METHODS: Expression of chemokine receptor (CCR) genes 3 to 8 were examined in the peripheral blood of 111 LVAD patients, collected 24 hours before implant...
December 23, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28131665/agreement-between-risk-and-priority-for-heart-transplant-effects-of-the-geographic-allocation-rule-and-status-assignment
#13
Todd F Dardas, Minkyu Kim, Aasthaa Bansal, Patrick Heagerty, Richard K Cheng, Nahush A Mokadam, Jay Pal, Jason Smith, Claudius Mahr, Wayne C Levy
BACKGROUND: Allocation of donor hearts in the United States is accomplished by an algorithm based on status, time waited, and geographic boundaries. Although not designed to always transplant the highest acuity candidates, the ability of current United Network for Organ Sharing policies to prioritize highest acuity candidates is unknown. METHODS: We analyzed 32,866 adult match runs generated from 2007 to 2014. Each candidate's sequence number within a match run was compared with the candidate's risk of mortality using Kendall's tau-b-a measure of rank correlation...
December 23, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28131663/pulmonary-hypertension-and-ventilation-during-exercise-role-of-the-pre-capillary-component
#14
Sergio Caravita, Andrea Faini, Gael Deboeck, Antoine Bondue, Robert Naeije, Gianfranco Parati, Jean-Luc Vachiéry
BACKGROUND: Excessive exercise-induced hyperventilation and high prevalence of exercise oscillatory breathing (EOB) are present in patients with post-capillary pulmonary hypertension (PH) complicating left heart disease (LHD). Patients with pre-capillary PH have even higher hyperventilation but no EOB. We sought to determine the impact of a pre-capillary component of PH on ventilatory response to exercise in patients with PH and left heart disease. METHODS: We retrospectively compared patients with idiopathic or heritable pulmonary arterial hypertension (PAH, n = 29), isolated post-capillary PH (IpcPH, n = 29), and combined post- and pre-capillary PH (CpcPH, n = 12)...
December 23, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28110971/risk-factors-mortality-and-timing-of-ischemic-and-hemorrhagic-stroke-with-left-ventricular-assist-devices
#15
Jennifer A Frontera, Randall Starling, Sung-Min Cho, Amy S Nowacki, Ken Uchino, M Shazam Hussain, Maria Mountis, Nader Moazami
BACKGROUND: Stroke is a major cause of mortality after left ventricular assist device (LVAD) placement. METHODS: Prospectively collected data of patients with HeartMate II (n = 332) and HeartWare (n = 70) LVADs from October 21, 2004, to May 19, 2015, were reviewed. Predictors of early (during index hospitalization) and late (post-discharge) ischemic and hemorrhagic stroke and association of stroke subtypes with mortality were assessed. RESULTS: Of 402 patients, 83 strokes occurred in 69 patients (17%; 0...
December 23, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28110830/treatment-of-pulmonary-arterial-hypertension-in-eisenmenger-syndrome-practice-makes-almost-perfect
#16
EDITORIAL
Jean-Luc Vachiery
No abstract text is available yet for this article.
December 23, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28089426/exchange-of-a-heartware-hvad-to-a-heartmate-3-left-ventricular-assist-device
#17
LETTER
Jasmin S Hanke, Axel Haverich, Jan D Schmitto
No abstract text is available yet for this article.
December 23, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28087104/improved-outcomes-from-extracorporeal-membrane-oxygenation-versus-ventricular-assist-device-temporary-support-of-primary-graft-dysfunction-in-heart-transplant
#18
Koji Takeda, Boyangzi Li, Arthur R Garan, Veli K Topkara, Jiho Han, Paolo C Colombo, Maryjane A Farr, Yoshifumi Naka, Hiroo Takayama
BACKGROUND: Primary graft dysfunction (PGD) is one of the most common causes of early death after orthotopic heart transplantation. Mechanical circulatory support devices are required for severe forms of PGD. Venoarterial extracorporeal membrane oxygenation (VA-ECMO) and temporary ventricular assist device (VAD) support have both been reported to be useful for severe PGD. METHODS: Between January 2007 and December 2015, 597 patients received a heart transplant at our center...
December 23, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28089427/right-to-left-inverted-living-donor-lobar-lung-transplantation-combined-with-sparing-of-native-right-upper-lobe
#19
Yasufumi Goda, Hideki Motoyama, Akihiro Aoyama, Masatsugu Hamaji, Kyoko Hijiya, Toyofumi F Chen-Yoshikawa, Hiroshi Date
No abstract text is available yet for this article.
December 20, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28087105/left-ventricular-assist-device-outcomes-based-on-flow-configuration-and-pre-operative-left-ventricular-dimension-an-interagency-registry-for-mechanically-assisted-circulatory-support-analysis
#20
Palak Shah, Sarah Birk, Simon Maltais, John Stulak, Angelo Elmi, Francis D Pagani, Jennifer A Cowger
BACKGROUND: Axial configuration (AC) and centrifugal configuration (CC) left ventricular assist devices (LVAD) have different flow characteristics, and whether the interaction between device flow configuration and the pre-operative left ventricular internal diastolic diameter (LVIDD) mediates adverse events after LVAD implantation is unknown. METHODS: We queried 9,424 continuous-flow LVAD recipients who received LVADs from April 2008 to June of 2015 in the Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS)...
December 16, 2016: Journal of Heart and Lung Transplantation
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