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https://www.readbyqxmd.com/read/28426448/clinical-and-ethical-challenges-in-heart-transplantation-from-donation-after-circulatory-determined-death-donors
#1
Stephen Large, Steven Tsui, Simon Messer
PURPOSE OF REVIEW: The aim of this study was to describe the development of a clinical programme of heart transplantation from nonheart beating (or donation after circulatory determined death, DCD) donors. DCD is an established practice in abdominal and lung transplantation. The opportunity for sufferers of advanced heart failure provided by DCD heart transplantation is described. RECENT FINDINGS: Work shows that the arrested DCD heart is viable and has a 30-min tolerance to anoxia at normal body temperature making transplantation possible...
April 19, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28425200/high-dose-calcineurin-inhibitor-free-everolimus-as-a-maintenance-regimen-for-heart-transplantation-may-be-a-risk-factor-for%C3%A2-pneumocystis-pneumonia
#2
Yu-Ning Hu, Nan-Yao Lee, Jun-Neng Roan, Chi-Hsin Hsu, Chwan-Yao Luo
BACKGROUND: Everolimus reduces the incidence of cardiac-allograft vasculopathy (CAV) and is less renally toxic than are calcineurin inhibitors (CNIs). We evaluated the safety of CNI-free everolimus for post-heart transplant (HTx) patients. METHODS: We retrospectively reviewed the records of 36 consecutive patients who had undergone an HTx between January 2006 and December 2013 in National Cheng Kung University Hospital. All patients initially had been treated with the standard tacrolimus regimen...
April 20, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28424442/clinical-improvement-and-no-further-need-of-transplant-after-closure-of-pda-with-transcatheter-approach-in-an-end-stage-heart-failure-patient-with-hypertrabeculation
#3
Serhat Koca, Feyza Ayşenur Paç, Ajda Mutlu Mıhçıoğlu, Vedat Kavurt, Denizhan Bağrul
Although heart failure is managed medically most of the time, heart transplantation is still last resort for selected end-stage heart failure patients with noncompaction cardiomyopathy. Presently described for the first time is case of pediatric patient with noncompaction cardiomyopathy who was initially referred to our hospital for heart transplant but underwent PDA repair and improved clinically without need for heart transplant.
March 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28424230/a-quiet-revolution-in-organ-transplant-ethics
#4
Arthur Caplan, Duncan Purves
A quiet revolution is occurring in the field of transplantation. Traditionally, transplants have involved solid organs such as the kidney, heart and liver which are transplanted to prevent recipients from dying. Now transplants are being done of the face, hand, uterus, penis and larynx that aim at improving a recipient's quality of life. The shift away from saving lives to seeking to make them better requires a shift in the ethical thinking that has long formed the foundation of organ transplantation. The addition of new forms of transplants requires doctors, patients, regulators and the public to rethink the risk and benefit ratio represented by trade-offs between saving life, extending life and risking the loss of life to achieve improvements in the quality of life...
April 19, 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/28421592/left-ventricular-improvement-due-to-allogeneic-cb-mncs-transplantation-in-a-chronic-heart-failure-six-years-after-myocardial-infarction
#5
Li Zhu, Aihuan Yue, Zhongbao Ruan, Yigang Yin, Ruzhu Wang, Yin Ren, Gecai Chen
No abstract text is available yet for this article.
2017: Cardiology Journal
https://www.readbyqxmd.com/read/28421570/-real-world-experience-in-cardiac-resynchronization-therapy-at-a-swiss-tertiary-care-center
#6
Stephan Winnik, Christian Elsener, Burkhardt Seifert, Christoph Starck, Agnes Straub, Ardan M Saguner, Alexander Breitenstein, Nazmi Krasniqi, Markus J Wilhelm, Laurent Haegeli, Firat Duru, Stefano Benussi, Francesco Maisano, Thomas F Lüscher, Johannis Holzmeister, David Huerlimann, Frank Ruschitzka, Jan Steffel
BACKGROUND: Based on a reduction in morbidity and mortality, cardiac resynchronisation therapy (CRT) has evolved as a standard therapy for patients with advanced heart failure. OBJECTIVE: To provide insight into patient demographics, safety, echocardiographic remodelling and long-term follow-up of patients treated with CRT in a "real-world" setting at a Swiss tertiary care centre. METHODS: Patients implanted with a CRT device at the University Heart Centre Zurich between 2000 and 2015 were consecutively enrolled...
April 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28421185/changes-in-composition-of-the-gut-bacterial-microbiome-after-fecal-microbiota-transplantation-for-recurrent-clostridium-difficile-infection-in-a-pediatric-heart-transplant-patient
#7
Kyle L Flannigan, Taylor Rajbar, Andrew Moffat, Leanna S McKenzie, Frank Dicke, Kevin Rioux, Matthew L Workentine, Thomas J Louie, Simon A Hirota, Steven C Greenway
The microbiome is increasingly recognized as an important influence on human health and many of the comorbidities that affect patients after solid organ transplantation (SOT) have been shown to involve changes in gut bacterial populations. Thus, microbiome changes in an individual patient may have important health implications after SOT but this area remains understudied. We describe changes in the composition of the fecal microbiome from a pediatric heart transplant recipient before and >2.5 years after he underwent repeated fecal microbiota transplantation (FMT) for recurrent Clostridium difficile infection (CDI)...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28420862/clinical-characteristics-treatment-and-prognosis-of-patients-with-acute-severe-heart-failure-of-ischemic-and-non-ischemic-etiology-analysis-from-the-commit-ahf-registry
#8
Mateusz Ostręga, Marek J Gierlotka, Grzegorz Słonka, Paweł Nadziakiewicz, Mariusz Gąsior
INTRODUCTION    There are limited data on the impact of ischemic etiology on clinical status and long-term prognosis among patients with acute severe heart failure (ASHF) not associated with acute coronary syndrome (ACS).  OBJECTIVES    To assess clinical characteristics, treatment and the 12-month mortality of patients with no-ACS ASHF according to etiology.  PATIENTS AND METHODS    The data from 112 patients with ASHF that was not associated with ACS were analyzed: 61 with ischemic (IASHF) and 51 with non-ischemic (NIASHF) etiology...
April 18, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28420666/prevalence-and-clinical-implication-of-double-mutations-in-hypertrophic-cardiomyopathy-revisiting-the-gene-dose-effect
#9
Dana Fourey, Melanie Care, Katherine A Siminovitch, Adaya Weissler-Snir, Waseem Hindieh, Raymond H Chan, Michael H Gollob, Harry Rakowski, Arnon Adler
BACKGROUND: Available data suggests that double mutations in patients with hypertrophic cardiomyopathy are not rare and are associated with a more severe phenotype. Most of this data, however, is based on noncontemporary variant classification. METHODS AND RESULTS: Clinical data of all hypertrophic cardiomyopathy patients with 2 rare genetic variants were retrospectively reviewed and compared with a group of patients with a single disease-causing variant. Furthermore, a literature search was performed for all studies with information on prevalence and outcome of patients with double mutations...
April 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28420436/autophagy-mediates-the-beneficial-effect-of-hypoxic-preconditioning-on-bone-marrow-mesenchymal-stem-cells-for-the-therapy-of-myocardial-infarction
#10
Zheng Zhang, Chao Yang, Mingzhi Shen, Ming Yang, Zhitao Jin, Liping Ding, Wei Jiang, Junke Yang, Haixu Chen, Feng Cao, Taohong Hu
BACKGROUND: Stem cell therapy has emerged as a promising therapeutic strategy for myocardial infarction (MI). However, the poor viability of transplanted stem cells hampers their therapeutic efficacy. Hypoxic preconditioning (HPC) can effectively promote the survival of stem cells. The aim of this study was to investigate whether HPC improved the functional survival of bone marrow mesenchymal stem cells (BM-MSCs) and increased their cardiac protective effect. METHODS: BM-MSCs, isolated from Tg(Fluc-egfp) mice which constitutively express both firefly luciferase (Fluc) and enhanced green fluorescent protein (eGFP), were preconditioned with HPC (1% O2) for 12 h, 24 h, 36 h, and 48 h, respectively, followed by 24 h of hypoxia and serum deprivation (H/SD) injury...
April 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28420415/distribution-pattern-following-systemic-mesenchymal-stem-cell-injection-depends-on-the-age-of-the-recipient-and-neuronal-health
#11
Claire Fabian, Yahaira Naaldijk, Christiane Leovsky, Adiv A Johnson, Lukas Rudolph, Carsten Jaeger, Katrin Arnold, Alexandra Stolzing
BACKGROUND: Mesenchymal stem cells (MSCs) show therapeutic efficacy in many different age-related degenerative diseases, including Alzheimer's disease. Very little is currently known about whether or not aging impacts the transplantation efficiency of MSCs. METHODS: In this study, we investigated the distribution of intravenously transplanted syngeneic MSCs derived from young and aged mice into young, aged, and transgenic APP/PS1 Alzheimer's disease mice. MSCs from male donors were transplanted into female mice and their distribution pattern was monitored by PCR using Y-chromosome specific probes...
April 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28419703/exercise-capacity-following-pediatric-heart-transplantation-a-systematic-review
#12
Sara Peterson, Jennifer A Su, Jacqueline R Szmuszkovicz, Robert Johnson, Barbara Sargent
Pediatric HTs account for 13% of all HTs with >60% of recipients surviving at least 10 years post-HT. The purpose of this systematic review is to synthesize the literature on exercise capacity of pediatric HT recipients to improve understanding of the mechanisms that may explain the decreased exercise capacity. Six databases were searched for studies that compared the exercise capacity of HT recipients ≤21 years old with a control group or normative data. Sixteen studies were included. Pediatric HT recipients, as compared to controls or normative data, exhibit significantly higher resting HR, and at peak exercise exhibit significantly decreased HR, VO2 , power, work, minute ventilation, and exercise duration...
April 17, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28416978/atrial-electromechanical-delay-in-patients-undergoing-heart-transplantation
#13
Mustafa Bulut, Mert Evlice, Mehmet Celik, Hayati Eren, Ömer F Savluk, Rezzan D Acar, Mustafa Tabakci, Mehmet Y Emiroglu, Ozlem Otcu Nurse, Ramazan Kargin, Mehmet Balkanay, Mustafa Akcakoyun
BACKGROUND: We aimed to assess atrial electromechanical delay (AEMD) in patients who had undergone heart transplantation. METHODS: A total of 32 patients who underwent biatrial anastomosis heart transplantation (24 men, 8 women; mean age: 42±11 years) and 30 healthy volunteers (20 men, 10 women; mean age: 36±13 years) were included in the study. Atrial electromechanical coupling (PA), intra-AEMD, and inter-AEMD were measured. RESULTS: PA lateral (68±7 vs...
April 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28416081/reversible-cerebral-vasoconstriction-syndrome-combined-with-posterior-reversible-encephalopathy-syndrome-after-heart-transplantation
#14
Seung Pil Ban, Gyojun Hwang, Chang Hyeun Kim, O-Ki Kwon
Reversible cerebral vasoconstriction syndrome (RCVS) combined with posterior reversible encephalopathy syndrome (PRES) is a rare complication in patients treated with immunosuppressants. A 52-year-old male patient presented with seizures after heart transplantation. The patient was suspected of having PRES on brain images. Despite the strict blood pressure control, the patient presented with altered mentality and the brain images showed a newly developed large acute infarction. Digital subtraction angiography (DSA) revealed the classic "sausage on a string" appearance of the cerebral arteries - potential feature of RCVS...
April 13, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28415669/micro-rna-98-suppresses-interleukin-10-in-peripheral-b-cells-in-patient-post-cardio-transplantation
#15
Jiangping Song, Wenjun Su, Xiao Chen, Qian Zhao, Ningning Zhang, Mao-Gang Li, Ping-Chang Yang, Liqing Wang
The immune tolerance to the transplant heart survival is critical. Regulatory B cells are one of the major immune regulatory cell populations in the immune tolerance. Micro RNAs (miR) can regulate the activities of immune cells, such as the expression of interleukin (IL)-10 by B cells. This study tests a hypothesis that micro RNA (miR)-98 plays a role in the regulation of interleukin (IL)-10 expression in B cells (B10 cell) after heart transplantation. In this study, the peripheral blood samples were collected from patients before and after heart transplantation...
March 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413579/metabolic-recovery-of-the-failing-heart-emerging-therapeutic-options
#16
Dale J Hamilton
Heart failure has mortality rates that parallel those of breast cancer. Current management strategies include neurohormonal blockade, rate control measures, natriuretic peptide preservation, implantation of mechanical assist devices, and heart transplantation. Despite these strategies, however, the failing myocardium remains energy depleted. New strategies to promote metabolic recovery are being developed to potentially augment current treatment guidelines. For example, an unexpected finding of our own studies showed that mechanical unloading with assist devices in advanced-stage heart failure restored metabolic flux...
January 2017: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/28413189/heart-transplantation-in-asia
#17
Hae-Young Lee, Byung-Hee Oh
Heart transplantation (HTx) is the effective way to improve quality of life as well as survival in terminal heart failure (HF) patients. Since the first heart transplant in 1968 in Japan and in earnest in 1987 at Taiwan, HTx has been continuously increasing in Asia. Although the current percentage of heart transplants from Asia comprises only 5.7% of cases in the International Society of Heart and Lung Transplantation (ISHLT) registry, the values were under-reported and soon will be greatly increased. HTx in Asia shows comparable with or even better results compared with ISHLT registry data...
April 11, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28412426/unraveling-the-rv-ejection-doppler%C3%A2-envelope-insight-into-pulmonary-artery-hemodynamics-and-disease%C3%A2-severity
#18
Hiroko Takahama, Robert B McCully, Robert P Frantz, Garvan C Kane
OBJECTIVES: The purpose of this study was to characterize the profiles of right ventricular outflow tract (RVOT) Doppler flow velocity envelopes in patients with pulmonary arterial hypertension (PAH) and to establish whether changes in the RVOT flow profile related to patient outcome. BACKGROUND: The RVOT systolic flow profile is frequently abnormal, with findings of a mid-systolic flow deceleration and notching, previously proposed as an indicator of elevated pulmonary vascular resistance (PVR)...
April 7, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28412246/absence-of-nucks-augments-paracrine-effects-of-mesenchymal-stem-cells-mediated-cardiac-protection
#19
Yuelin Zhang, Sinming Chiu, Xiaoting Liang, Yuet-Hung Chai, Yiming Qin, Junwen Wang, Xiang Li, Beiying Qiu, Vinay Tergaonkar, Hung-Fat Tse, Qizhou Lian
Bone marrow-derived mesenchymal stem cells (BM-MSCs) contribute to myocardial repair after myocardial infarction (MI) by secreting a panel of growth factors and cytokines. This study was to investigate the potential mechanisms of the nuclear casein kinase and cyclin-dependent kinase substrate 1 (NUCKS) in regulation of the profiles of BM-MSCs secretion and compare the therapeutic efficacy of NUCKS(-/-)- and wide type-BM-MSCs (WT-BM-MSCs) on MI. The secretion profiles between NUCKS(-/-)- and WT-BM-MSCs under hypoxia (1%O2) were analyzed...
April 12, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28410774/maintaining-the-gift-of-life-achieving-adherence-in-adolescent-heart-transplant-recipients
#20
Rachael Steuer, Sabrina Opiola McCauley
Since the beginning of United Network of Organ Sharing data collection in 1987, a total of 8,333 pediatric patients have received a heart transplant in the United States. Because these patients now have longer graft success with improved care and immunosuppression, many of them are entering adolescence and young adulthood. Primary care pediatric nurse practitioners need to be alert to the prevalence of noncompliance with treatment in heart transplant patients, which continues to be highest in adolescence. Low compliance in adolescence increases morbidity, contributes to decreasing quality of life, and is the leading reason for graft failure and mortality in this age group...
April 12, 2017: Journal of Pediatric Health Care
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