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Cardiac Transplante

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https://www.readbyqxmd.com/read/28742013/first-canadian-experience-with-donation-after-cardiac-death-simultaneous-pancreas-and-kidney-transplants
#1
Patrick T Anderson, Shahid Aquil, Kelly McLean, Vivian C McAlister, Alp Sener, Patrick P Luke
BACKGROUND: Compared with neurologic determination of death (NDD) donor organs, donation after cardiac death (DCD) donor organs have traditionally been considered of inferior quality owing to warm ischemia experienced during procurement. We present, to our knowledge, the first analysis of simultaneous pancreas and kidney (SPK) transplants using DCD donor organs in Canada. METHODS: We carried out a retrospective cohort study of SPK transplants from 13 DCD and 68 NDD donors performed between October 2008 and July 2016...
August 1, 2017: Canadian Journal of Surgery. Journal Canadien de Chirurgie
https://www.readbyqxmd.com/read/28740514/normal-versus-pathological-cardiac-fibroblast-derived-extracellular-matrix-differentially-modulates-cardiosphere-derived-cell-paracrine-properties-and-commitment
#2
Francesca Pagano, Francesco Angelini, Clotilde Castaldo, Vittorio Picchio, Elisa Messina, Sebastiano Sciarretta, Ciro Maiello, Giuseppe Biondi-Zoccai, Giacomo Frati, Franca di Meglio, Daria Nurzynska, Isotta Chimenti
Human resident cardiac progenitor cells (CPCs) isolated as cardiosphere-derived cells (CDCs) are under clinical evaluation as a therapeutic product for cardiac regenerative medicine. Unfortunately, limited engraftment and differentiation potential of transplanted cells significantly hamper therapeutic success. Moreover, maladaptive remodelling of the extracellular matrix (ECM) during heart failure progression provides impaired biological and mechanical signals to cardiac cells, including CPCs. In this study, we aimed at investigating the differential effect on the phenotype of human CDCs of cardiac fibroblast-derived ECM substrates from healthy or diseased hearts, named, respectively, normal or pathological cardiogel (CG-N/P)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28739313/cardiac-amyloidosis-an-update-on-pathophysiology-diagnosis-and-treatment
#3
REVIEW
Omar K Siddiqi, Frederick L Ruberg
The amyloidoses are a group of systemic diseases characterized by organ deposition of misfolded protein fragments of diverse origins. The natural history of the disease, involvement of other organs, and treatment options vary significantly based on the protein of origin. In AL amyloidosis, amyloid protein is derived from immunoglobulin light chains, and most often involves the kidneys and the heart. ATTR amyloidosis is categorized as mutant or wild-type depending on the genetic sequence of the transthyretin (TTR) protein produced by the liver...
July 13, 2017: Trends in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28739034/evaluation-of-resting-cardiac-power-output-as-a-prognostic-factor-in-patients-with-advanced-heart-failure
#4
Omer Yildiz, Gamze Aslan, Zumrut T Demirozu, Cemal Deniz Yenigun, Nuran Yazicioglu
If the heart is represented by a hydraulic pump, cardiac power represents the hydraulic function of the heart. Cardiac pump function is frequently determined through left ventricular ejection fraction using imaging. This study aims to validate resting cardiac power output (CPO) as a predictive biomarker in patients with advanced heart failure (HF). One hundred and seventy-two patients with HF severe enough to warrant cardiac transplantation were retrospectively reviewed at a single tertiary care institution between September 2010 and July 2013...
June 28, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28736027/suppression-of-delayed-xenograft-rejection-by-resveratrol-in-a-hamster-to-rat-cardiac-transplantation-model
#5
Y Lian, C Gao, Y Wu, J Xia, Y Leng, Y Liu, M Zhu, J Chen, Z Qi
BACKGROUND: Delayed xenograft rejection (DXR) is an insurmountable barrier for xenotransplantation. Previous studies reported that hamster hearts transplanted into rats undergo DXR and stop functioning after the cessation of immunosuppression. Herein, we investigated the effects of resveratrol on preventing DXR in a hamster-to-rat vascularized cardiac xenograft model. METHODS: Hamster hearts were engrafted into Lewis rat recipients. Recipient rats received a graft acceptance-inducing treatment of leflunomide and FK506 for 2 weeks to prevent acute xenograft rejection (AXR)...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28736026/yogurt-feeding-induced-the-prolongation-of-fully-major-histocompatibility-complex-mismatched-murine-cardiac-graft-survival-by-induction-of-cd4-foxp3-cells
#6
M Uchiyama, E Yin, T Yanagisawa, X Jin, M Hara, S Matsuyama, T Imazuru, K Uchida, M Kawamura, M Niimi
Yogurt is a nutrient-rich food and the beneficial effects of yogurt on both health and immunomodulatory effects are well documented. In this pilot study, we investigated the effects of commercially produced yogurt R-1 on alloimmune responses in a murine cardiac transplantation model. The R-1 is produced by Meiji Co., Ltd., and contains live and active lactic acid bacteria (lactobacillus bulgaricus OLL1073R-1) mainly. CBA (H2(k)) mice underwent transplantation of a C57BL/6 (H2(b); B6) heart and received oral administration of 1 mL, 0...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28736011/pediatric-donor-to-adult-recipients-in-donation-after-cardiac-death-liver-transplantation-a-single-center-experience
#7
C Lan, J L Song, L N Yan, J Y Yang, T F Wen, B Li, M Q Xu
BACKGROUND: The impact of using liver allografts from donors who are younger than 14 years at the time of donation after cardiac death (DCD) liver transplantation in terms of early allograft dysfunction (EAD) and graft survival is undefined. To determine if adults undergoing DCD liver transplantation who receive a graft from a donor age younger than or equal to 13 years have similar outcomes to recipients of organs from older than 18-year-old donors. METHODS: Records from adult patients undergoing DCD liver transplantation between March 2012 and December 2015 who received whole grafts from donors after cardiac death were reviewed...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28736007/development-and-validation-of-a-nomogram-for-predicting-incidence-of-early-allograft-dysfunction-following-liver-transplantation
#8
L Yang, E Y Xin, B Liao, L J Lai, M Han, X P Wang, W Q Ju, D P Wang, Z Y Guo, X S He
OBJECTIVE: Early allograft dysfunction (EAD) is frequent complication post-liver transplantation and is closely related to recipient's mortality and morbidity. We sought to develop a nomogram for predicting incidence of EAD. METHODS: Based on multivariate analysis of donor, recipient, and operation data of 199 liver transplants from deceased donors between 2013 and 2015, we identified 5 significant risk factors for EAD to build a nomogram. The model was subjected to prospective validation with a cohort of 42 patients who was recruited between January and June 2016...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28734900/molecular-imaging-in-stem-cell-based-therapies-of-cardiac-diseases
#9
REVIEW
Xiang Li, Marcus Hacker
In the past 15years, despite regenerative medicine has shown great potential for cardiovascular diseases, the outcome and safety of stem cell transplantation has shown controversial results in the published literature. Medical imaging might be useful for monitoring and quantification transplanted cells within the heart and to serially characterize the effects of stem cell therapy of the myocardium. From the multiple available noninvasive imaging techniques, magnetic resonance imaging and nuclear imaging by positron (PET) or single photon emission computer tomography (SPECT) are the most used clinical approaches to follow the fate of transplanted stem cells in vivo...
July 19, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28734440/use-of-mechanical-circulatory-support-in-isolated-right-heart-failure-a-bridge-to-transplantation
#10
Daniel J Beissel, Brian F Birnbaum, Aliessa P Barnes, James E O'Brien, Elizabeth M Turk, James D St Louis
Acute myocarditis may lead to left ventricular dysfunction and subsequent need for cardiac transplantation. We describe a 15-month-old child who presented with right heart failure of unclear cause. Echocardiography showed normal left ventricular function; however, right ventricular function was markedly reduced. The patient required extracorporeal membrane oxygenation followed by placement of a right-sided Berlin EXCOR ventricular assist device. There was little recovery, and the child underwent cardiac transplantation...
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28734025/dual-site-right-ventricular-pacing-in-patients-undergoing-cardiac-resynchronization-therapy-results-of-a-multicentre-propensity-matched-analysis
#11
Rui Providencia, Sergio Barra, Nikolaos Papageorgiou, Adam Ioannou, Dominic Rogers, Tanakal Wongwarawipat, Debbie Falconer, Rudolf Duehmke, Martina Colicchia, Girish Babu, Oliver R Segal, Simon Sporton, Mehul Dhinoja, Syed Ahsan, Vivienne Ezzat, Edward Rowland, Martin Lowe, Pier D Lambiase, Sharad Agarwal, Anthony W Chow
BACKGROUND: Dual RV has been proposed as an alternative for patients with heart failure undergoing cardiac resynchronization therapy (CRT) with a failure to deliver a coronary sinus (CS) lead. Only short-term haemodynamic and echocardiographic results of Dual RV are available. We aimed to assess the long-term results of Dual-site right ventricular pacing (Dual RV) and its impact on survival. METHODS: Multicentre retrospective assessment of all CRT implants during a 12-year period...
July 21, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28733264/the-impact-of-toxicities-on-first-year-outcomes-after-ex-vivo-cd34-selected-allogeneic-hematopoietic-cell-transplantation-in-adults-with-hematologic-malignancies
#12
Satyajit Kosuri, Diego Adrianzen Herrera, Michael Scordo, Gunjan L Shah, Christina Cho, Sean M Devlin, Molly A Maloy, Jimmy Nieves, Taylor Borrill, Dean C Carlow, Scott T Avecilla, Richard C Meagher, Richard J O'Reilly, Esperanza B Papadopoulos, Ann A Jakubowski, Guenther Koehne, Boglarka Gyurkocza, Hugo Castro-Malaspina, Brian C Shaffer, Roni Tamari, Sergio A Giralt, Miguel-Angel Perales
Factors that impact first year morbidity and mortality in adults undergoing myeloablative allogeneic hematopoietic cell transplantation with ex-vivo CD34+ selection have not been previously reported. We assessed all toxicities ≥ grade 3 from the start of conditioning to date of death, relapse, or last contact in 200 patients during the first year post-transplantation, identifying 1885 individual toxicities among 17 organ-based toxicity groups. The most prevalent toxicities in the 1(st) year were of infectious, metabolic, hematologic, oral/GI, hepatic, cardiac and pulmonary etiologies...
July 18, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28731484/cpr-ecls-bvad-and-successful-heart-transplantation-within-2-months-a-single-centre-case-series-in-two-young-high-urgency-listed-patients
#13
Anna K Schmidt, Diyar Saeed, Arash Mehdiani, Bozena Sowinski, Ralf Westenfeld, Payam Akhyari, Artur Lichtenberg, Udo Boeken
INTRODUCTION: In times of organ shortage, death while on the heart waiting-list still represents a major problem. As a consequence, bridging to transplant as well as the decision when to escalate therapy play a very important role. METHODS AND RESULTS: We report on two young patients with dilated cardiomyopathy and acute decompensation who were successfully bridged to heart transplantation with both left and temporary right ventricular assist devices in just 2 months...
July 20, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28729966/causal-relationship-between-hypoalbuminemia-and-acute-kidney-injury
#14
REVIEW
Christian J Wiedermann, Wolfgang Wiedermann, Michael Joannidis
Our meta-analysis published in 2010 provided evidence that low levels of serum albumin (hypoalbuminemia) are a significant independent predictor of acute kidney injury (AKI) and death following AKI. Since then, a large volume of additional data from observational clinical studies has been published further evaluating the relationship between serum albumin and AKI occurrence. This is an updated review of the literature to re-evaluate the hypothesis that hypoalbuminemia is independently associated with increased AKI risk...
July 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28728723/surgical-treatment-of-heart-failure
#15
REVIEW
Robert S D Higgins, Ahmet Kilic, Daniel G Tang
More than 5 million Americans suffer from heart failure and more than 250,000 die annually. Cardiac surgery, as applied to advanced heart failure, has evolved significantly in the past 50 years. Current therapeutic interventions are focused on the appropriate assessment of myocardial dysfunction as a means to select the right patient for the appropriate procedure using state-of-the-art myocardial viability testing and metabolic testing to determine candidacy for conventional interventions, mechanical devices, or transplant...
August 2017: Surgical Clinics of North America
https://www.readbyqxmd.com/read/28728690/contemporary-outcomes-in-patients-with%C3%A2-long-qt-syndrome
#16
Ram K Rohatgi, Alan Sugrue, J Martijn Bos, Bryan C Cannon, Samuel J Asirvatham, Christopher Moir, Heidi J Owen, Katy M Bos, Teresa Kruisselbrink, Michael J Ackerman
BACKGROUND: Long QT syndrome (LQTS) is a potentially lethal cardiac channelopathy with a 1% to 5% annual risk of LQTS-triggered syncope, aborted cardiac arrest, or sudden cardiac death. OBJECTIVES: This study sought to evaluate LQTS outcomes from a single center in the contemporary era. METHODS: The authors conducted a retrospective study comprising the 606 patients with LQTS (LQT1 in 47%, LQT2 in 34%, and LQT3 in 9%) who were evaluated in Mayo Clinic's Genetic Heart Rhythm Clinic from January 1999 to December 2015...
July 25, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28727596/intraoperative-acute-multivessel-coronary-vasospasm-in-cardiac-allograft-a-case-report
#17
Richard Sheu, Kathleen Berfield, Stephanie Jones, Jay Pal, G Burkhard Mackensen
We present a patient who developed acute intraoperative cardiac failure requiring open cardiac message immediately after uncomplicated heart transplantation. After successful resuscitation and establishment of extracorporeal membrane oxygenation, coronary angiography showed diffuse multivessel coronary vasospasm, which responded to intracoronary and IV administration of vasodilators. Cardiac function gradually improved and the patient was discharged home after a prolonged hospital course. Cardiac allograft dysfunction associated with coronary vasospasm immediately after heart transplantation has not previously been reported...
July 19, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28727227/long-term-outcomes-of-simultaneous-heart-and-kidney-transplantation-in-pediatric-recipients
#18
Patricia L Weng, Juan Carlos Alejos, Nancy Halnon, Qiuheng Zhang, Elaine F Reed, Eileen Tsai Chambers
Pediatric sHKTx has become an effective therapy for patients with combined cardiac and renal failure. Often, these patients develop human leukocyte antigen antibodies from their previous allografts and are therefore more difficult to re-transplant. We describe the largest case series of a predominantly sensitized pediatric sHKTx with emphasis on medical management and patient outcomes. Demographics, clinical characteristics, antibody, and biopsy data were retrospectively collected from University of California, Los Angeles database and correlated with short- and long-term patient and allograft outcomes of all sHKTx performed between 2002 and 2015...
July 20, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28725306/histology-and-glutamine-synthetase-immunoreactivity-in-liver-biopsies-from-patients-with-congestive-heart-failure
#19
Bela Horvath, Lei Zhu, Daniela Allende, Hao Xie, John Guirguis, Michael Cruise, Deepa T Patil, Robert O'Shea, John Rivas, Reyna Yordanka, Nan Lan, Xiuli Liu
BACKGROUND: Long-standing congestive heart failure can induce a constellation of histopathology changes in the liver that can range from mild sinusoidal dilation to advanced fibrosis and loss of normal perivenular expression of glutamine synthetase (GS). Liver biopsies might be performed to assess the perioperative risk of these patients or to determine the need of synchronous liver transplant. We aimed to assess interobserver agreement in recognizing these liver histologic features in patients undergoing evaluation for heart transplantation and to examine whether immunohistochemistry of GS will aid the diagnosis of cardiac hepatopathy (CH)...
June 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/28724404/temporal-trends-of-dialysis-requiring-acute-kidney-injury-after-orthotopic-cardiac-and-liver-transplant-hospitalizations
#20
Girish N Nadkarni, Kinsuk Chauhan, Achint Patel, Aparna Saha, Priti Poojary, Sunil Kamat, Shanti Patel, Rocco Ferrandino, Ioannis Konstantinidis, Pranav S Garimella, Madhav C Menon, Charuhas V Thakar
BACKGROUND: The epidemiology and outcomes of acute kidney injury (AKI) in prevalent non-renal solid organ transplant recipients is unknown. METHODS: We assessed the epidemiology of trends in acute kidney injury (AKI) in orthotopic cardiac and liver transplant recipients in the United States. We used the Nationwide Inpatient Sample to evaluate the yearly incidence trends (2002 to 2013) of the primary outcome, defined as AKI requiring dialysis (AKI-D) in hospitalizations after cardiac and liver transplantation...
July 19, 2017: BMC Nephrology
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