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https://www.readbyqxmd.com/read/29316181/heart-rate-variability-and-baroreflex-sensitivity-in-bilateral-lung-transplant-recipients
#1
Timothée Fontolliet, Pietro Gianella, Vincent Pichot, Jean-Claude Barthélémy, Paola Gasche-Soccal, Guido Ferretti, Frédéric Lador
The effects of lung afferents denervation on cardiovascular regulation can be assessed on bilateral lung transplantation patients. The high-frequency component of heart rate variability is known to be synchronous with breathing frequency. Then, if heart beat is neurally modulated by breathing frequency, we may expect disappearance of high frequency of heart rate variability in bilateral lung transplantation patients. On 11 patients and 11 matching healthy controls, we measured R-R interval (electrocardiography), blood pressure (Portapres® ) and breathing frequency (ultrasonic device) in supine rest, during 10-min free breathing, 10-min cadenced breathing (0·25 Hz) and 5-min handgrip...
January 9, 2018: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29312756/history-of-lung-transplantation
#2
REVIEW
Federico Venuta, Dirk Van Raemdonck
Lung transplantation nowadays is a well-accepted and routine treatment for well selected patients with terminal respiratory disease. However, it took several decades of experimental studies and clinical attempts to reach this success. In this paper, we describe the early experimental activity from the mid-forties until the early sixties. The first clinical attempt in humans was reported by Hardy and Webb in 1963 followed by others with short survival only except for one case by Derom et al. who lived for 10 months...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29302641/cancer-immunotherapy-in-patients-with-new-or-recurrent-malignancies-after-liver-transplantation
#3
REVIEW
Mengqi Liu, Wenzhi Guo, Shuijun Zhang
Cancer immunotherapy, as a new treatment modality, has been shown to be effective, especially in metastatic melanoma and lung cancer. Organ transplantation can be a life-saving procedure for patients with end-stage diseases of lung, heart, kidney and liver. While ironically, as improvements in organ transplantation have extended patients' lives, new or recurrent postsurgical malignancies have become an increasing threat to their long-term survival, especially in patients after liver transplantation due to hepatocellular carcinoma...
December 2017: International Journal of Surgery. Oncology
https://www.readbyqxmd.com/read/29301626/temporal-trends-of-de-novo-malignancy-development-after-heart-transplantation
#4
Jong-Chan Youn, Josef Stehlik, Amber R Wilk, Wida Cherikh, In-Cheol Kim, Gyeong-Hun Park, Lars H Lund, Howard J Eisen, Do Young Kim, Sun Ki Lee, Suk-Won Choi, Seongwoo Han, Kyu-Hyung Ryu, Seok-Min Kang, Jon A Kobashigawa
BACKGROUND: Malignancy is a concern in cardiac transplant recipients, but the temporal trends of de novo malignancy development are unknown. OBJECTIVES: The goal of this study was to describe the temporal trends of the incidence, types, and predictors of de novo malignancy in cardiac transplant recipients. METHODS: The authors analyzed the temporal trends of post-transplant incidence, types, and predictors of malignancy using 17,587 primary adult heart-only transplant recipients from the International Society for Heart and Lung Transplantation registry...
January 2, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29286569/patterns-of-kidney-injury-in-pediatric-non-kidney-solid-organ-transplant-recipients
#5
C Williams, K Borges, T Banh, J Vasilevska-Ristovska, R Chanchlani, V L Ng, A I Dipchand, M Solomon, D Hebert, S J Kim, B C Astor, R S Parekh
The incidence of acute kidney injury (AKI) and its impact on chronic kidney disease (CKD) following pediatric non-kidney solid organ transplantation is unknown. We aimed to determine the incidence of AKI and CKD and examine their relationship among children who received a heart, lung, liver or multi-organ transplant at the Hospital for Sick Children between 2002 and 2011. AKI was assessed in the first year post-transplant. Among 303 children, perioperative AKI (within the first week) occurred in 67% of children, and AKI after the first week occurred in 36%, with the highest incidence among lung and multi-organ recipients...
December 29, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29277952/a-tale-of-two-cases-of-pulmonary-arteriovenous-malformation-how-they-fared-after-cardiac-transplantation
#6
Bethany L Wisotzkey, Dari L Magyar, Thomas K Jones, Robert J Boucek, Lester C Permut, Mariska S Kemna, Yuk M Law
BACKGROUND: In single ventricle patients, aorticopulmonary collaterals (APCs) and pulmonary arteriovenous malformations (PAVMs) following superior cavopulmonary shunt (CPS) can complicate orthotopic heart transplant (OHT) by cyanosis and hemoptysis. Though PAVMs can regress with restoration of hepatic venous flow to the pulmonary circulation, the effects of hypoxemia on the "unconditioned" allograft are not known. CASES: Two patients with significant PAVMs after CPS were cyanotic following OHT...
December 26, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/29276625/epicardial-delivery-of-autologous-atrial-appendage-micrografts-during-coronary-artery-bypass-surgery-safety-and-feasibility-study
#7
Annu Nummi, Tuomo Nieminen, Tommi Pätilä, Milla Lampinen, Miia L Lehtinen, Sari Kivistö, Miia Holmström, Erika Wilkman, Kari Teittinen, Mika Laine, Juha Sinisalo, Markku Kupari, Esko Kankuri, Tatu Juvonen, Antti Vento, Raili Suojaranta, Ari Harjula
Background: The atrial appendages are a tissue reservoir for cardiac stem cells. During on-pump coronary artery bypass graft (CABG) surgery, part of the right atrial appendage can be excised upon insertion of the right atrial cannula of the heart-lung machine. In the operating room, the removed tissue can be easily cut into micrografts for transplantation. This trial aims to assess the safety and feasibility of epicardial transplantation of atrial appendage micrografts in patients undergoing CABG surgery...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/29234678/follow-up-measurement-of-corrected-qt-interval-in-adult-patients-before-and-after-lung-transplantation
#8
Dirk Bandorski, Reinhard Hoeltgen, Nicole Becker, Winfried Padberg, Harilaos Bogossian, Christoph Wiedenroth, Matthias Arlt, Christian Hamm, Werner Seeger, Hossein Ardeschir Ghofrani, Matthias Hecker, Henning Gall, Konstantin Mayer
Background: Prolongation of the corrected QT (QTc) interval is well known for many drugs, some of which are an integral part of the therapeutic regimen after lung transplantation (LTX). Therefore, we investigated the QTc interval after LTX in the present study. Patients and Methods: The medical records of patients after LTX were studied for demographic data, indication of LTX, medication, and baseline and follow-up ECGs. The QT interval was corrected for the patient's heart rate using the different formulae of Bazett, Fridericia, Hodges, and Framingham...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29229098/pulmonary-veno-occlusive-disease-an-important-consideration-in-patients-with-pulmonary-hypertension
#9
REVIEW
Ryan Balko, Hawa Edriss, Kenneth Nugent, Victor Test
Pulmonary veno-occlusive disease is a rare subcategory of pulmonary arterial hypertension (WHO Group 1). The disease is poorly understood and difficult to diagnose; it has no definitive cure to date. These patients present with nonspecific symptoms, including dyspnea, exercise intolerance, and weakness. Chest x-rays sometimes differ from idiopathic pulmonary arterial hypertension and may demonstrate alveolar infiltrates and pleural effusions. High resolution computed tomography scans reveal ground glass opacities, interlobular septal thickening, and lymphadenopathy...
November 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/29228125/myeloid-neoplasms-following-solid-organ-transplantation-clinicopathologic-studies-of-23-cases
#10
Bin Wu, Kimberly Ingersoll, Rachel Jug, Lian-He Yang, Catherine Luedke, Amanda Lo, Pu Su, Xin Liu, Catherine Rehder, Jerald Gong, Chuanyi Mark Lu, Endi Wang
Objectives: Myeloid neoplasms (MNs) after solid organ transplant are rare, and their clinicopathologic features have not been well characterized. Methods: We retrospectively analyzed 23 such cases. Results: The ages ranged from 2 to 76 years, with a median of 59 years at the diagnosis. The median interval between the transplant and diagnosis was 56 months (range, 8-384 months). The transplanted organs included liver in five, kidney in six, lung in five, heart in six, and heart/lung in one case(s)...
December 7, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29227305/lung-transplantation-for-chronic-obstructive-pulmonary-disease-past-present-and-future-directions
#11
Faisal M Siddiqui, Joshua M Diamond
PURPOSE OF REVIEW: Lung transplantation offers an effective treatment modality for patients with end-stage chronic obstructive pulmonary disease (COPD). The exact determination of when to refer, list, and offer transplant as well as the preferred transplant procedure type remains unclear. Additionally, there are special considerations specific to patients with COPD being considered for lung transplantation, including the implications of single lung transplantation on lung cancer risk, native lung hyperinflation, and overall survival...
December 7, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/29206661/the-need-and-opportunity-for-donation-after-circulatory-death-worldwide
#12
Martí Manyalich, Helen Nelson, Francis L Delmonico
PURPOSE OF REVIEW: The global shortage of organ donors will not be resolved solely by relying on deceased donation following a brain death determination (DBD). Expansion of deceased donation after circulatory death (DCD) will be needed to address the shortfall of organs for transplantation. Approximately 120 000 organ transplants are performed each year; however, the WHO estimates that this number of transplants only resolves 10% of the annual worldwide transplant need. RECENT FINDINGS: The report addresses the opportunity of DCD expansion by evaluating the DCD potential that is not being realized, the utility of DCD enabling DBD to emerge in some clinical situations, by the effectiveness of a donor registry in achieving DCD, and by the current clinical research of heart, lung, and liver transplantation from DCD...
December 4, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/29203213/examining-the-role-of-extracorporeal-membrane-oxygenation-in-patients-following-suspected-or-confirmed-suicide-attempts-a-case-series
#13
Adeel Abbasi, Cynthia Devers, Christopher S Muratore, Colin Harrington, Corey E Ventetuolo
The decision to offer extracorporeal membrane oxygenation (ECMO) is based on a risk/benefit assessment and the likelihood of a treatable underlying condition or the feasibility of destination therapy (durable mechanical support or thoracic organ transplantation) should heart-lung function fail to improve. Patients who present following suspected suicide attempts who fail medical therapy may pose a dilemma for clinicians. An assessment to determine if a patient has a high likelihood of psychiatric recovery such that bridging with ECMO or ultimately destination therapy could or should be offered is not always feasible in the setting of critical illness...
October 18, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/29198928/lung-autoantibodies-ready-for-prime-time
#14
EDITORIAL
Luke Milross, Ramsey Hachem, Deborah Levine, Allan R Glanville
Despite advances in our understanding of the immunology of lung allograft tolerance and a reduction in the rate of acute allograft rejection using contemporary immunosuppressive protocols, the rate of chronic lung allograft dysfunction (CLAD), both obstructive and restrictive, remains unacceptably high. CLAD, particularly the restrictive phenotype, is a harbinger of a foreshortened survival. The development of a consensus approach to the diagnosis of antibody-mediated rejection by the International Society for Heart and Lung Transplantation has highlighted the need for a uniform approach toward the investigation, diagnosis, implications and management of both human leukocyte antigen (HLA) and non-HLA-related antibody formation...
November 8, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29198869/the-ratio-of-circulating-regulatory-cluster-of-differentiation-4-t-cells-to-endothelial-progenitor-cells-predicts-clinically-significant-acute-rejection-after-heart-transplantation
#15
Dong-Hyun Choi, Stephen A Chmura, Vasavi Ramachandran, Kira Y Dionis-Petersen, Yuhei Kobayashi, Takeshi Nishi, Helen Luikart, Sadia Dimbil, Jon Kobashigawa, Kiran Khush, David B Lewis, William F Fearon
BACKGROUND: The aim of this study was to determine the value of the ratio of the percentage of circulating regulatory cluster of differentiation 4 T cells (%Tregs) to the percentage of endothelial progenitor cells (%EPCs; Treg/EPC ratio) for predicting clinically significant acute rejection. METHODS: Peripheral blood %Tregs and %EPCs were quantified in 91 cardiac transplant recipients using flow cytometry at a mean of 42 ± 13 days after transplant. The primary end point was clinically significant acute rejection, defined as an event that led to an acute augmentation of immunosuppression in conjunction with an International Society for Heart and Lung Transplantation grade ≥ 2R in a right ventricular endomyocardial biopsy specimen or non-cellular rejection (specimen-negative rejection) with hemodynamic compromise (decrease in left ventricular ejection fraction by > 25%)...
October 22, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29193654/technology-experience-of-solid-organ-transplant-patients-and-their-overall-willingness-to-use-interactive-health-technology
#16
Jasper M M Vanhoof, Bert Vandenberghe, David Geerts, Pieter Philippaerts, Patrick De Mazière, Annette DeVito Dabbs, Sabina De Geest, Fabienne Dobbels
BACKGROUND: The use of interactive health technology (IHT) is a promising pathway to tackle self-management problems experienced by many chronically ill patients, including solid organ transplant (Tx) patients. Yet, to ensure that the IHT is accepted and used, a human-centered design process is needed, actively involving end users in all steps of the development process. A first critical, predevelopment step involves understanding end users' characteristics. This study therefore aims to (a) select an IHT platform to deliver a self-management support intervention most closely related to Tx patients' current use of information and communication technologies (ICTs), (b) understand Tx patients' overall willingness to use IHT for self-management support, and investigate associations with relevant technology acceptance variables, and (c) explore Tx patients' views on potential IHT features...
November 28, 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/29193065/stereological-assessment-of-the-blood-air-barrier-and-the-surfactant-system-after-mesenchymal-stem-cell-pretreatment-in-a-porcine-non-heart-beating-donor-model-for-lung-transplantation
#17
Anke Schnapper, Astrid Christmann, Lars Knudsen, Parwis Rahmanian, Yeong-Hoon Choi, Mohamed Zeriouh, Samira Karavidic, Klaus Neef, Anja Sterner-Kock, Maria Guschlbauer, Florian Hofmaier, Alexandra C Maul, Thorsten Wittwer, Thorsten Wahlers, Christian Mühlfeld, Matthias Ochs
More frequent utilization of non-heart-beating donor (NHBD) organs for lung transplantation has the potential to relieve the shortage of donor organs. In particular with respect to uncontrolled NHBD, concerns exist regarding the risk of ischaemia/reperfusion (IR) injury-related graft damage or dysfunction. Due to their immunomodulating and tissue-remodelling properties, bone-marrow-derived mesenchymal stem cells (MSCs) have been suspected of playing a beneficial role regarding short- and long-term survival and function of the allograft...
November 28, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29191295/changes-in-outcomes-of-cardiac-allograft%C3%A2-vasculopathy-over-30-years-following-heart-transplantation
#18
Maxime Tremblay-Gravel, Normand Racine, Simon de Denus, Anique Ducharme, Guy B Pelletier, Geneviève Giraldeau, Mark Liszkowski, Marie-Claude Parent, Michel Carrier, Annik Fortier, Michel White
OBJECTIVES: This study investigated temporal changes in the demographics and the prognosis of cardiac allograft vasculopathy (CAV) over 30 years following heart transplantation (HTx). BACKGROUND: Effects of the changing HTx demographics on CAV outcomes, based on International Society for Heart and Lung Transplantation (ISHLT) classification of CAV, have been incompletely investigated. METHODS: Patients who underwent HTx at the Montreal Heart Institute were classified according to the severity of CAV (CAV 0 is no presence of CAV; CAV 1 is mild, CAV 2 to 3 is moderate to severe) and era of HTx (early: 1983 to 1998; recent: 1999 to 2011)...
December 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/29190645/cd105-mesenchymal-stem-cells-migrate-into-osteoarthritis-joint-an-animal-model
#19
Pablo Fernandez-Pernas, Iván Rodríguez-Lesende, Alexandre de la Fuente, Jesús Mateos, Isaac Fuentes, Javier De Toro, Fco J Blanco, M C Arufe
Mesenchymal stem cells are being the focus of connective tissue technology and regenerative medicine, presenting a good choice cell source for improving old and well recognized techniques of cartilage defect repair. For instance, the autologous chondrocyte transplantation using new concepts of regenerative medicine. The present study investigated the risk of xenogenicity of human synovial membrane-derived MSCs, injected into the monkeys using intravenous and intra-articular administration. The animal models used were adult monkeys Rhesus which had been injured into the left knee to create an Osteoarthritis (OA) animal model...
2017: PloS One
https://www.readbyqxmd.com/read/29184907/comparative-assessment-of-anti-hla-antibodies-using-two-commercially-available-luminex-based-assays
#20
Kevin J Clerkin, Sarah B See, Maryjane A Farr, Susan W Restaino, Geo Serban, Farhana Latif, Lingzhi Li, Paolo C Colombo, George Vlad, Bryan Ray, Elena R Vasilescu, Emmanuel Zorn
Background: Allospecific anti-HLA antibodies (Abs) are associated with rejection of solid organ grafts. The 2 main kits to detect anti-HLA Ab in patient serum are commercialized by Immucor and One Lambda/ThermoFisher. We sought to compare the performance of both platforms. Methods: Background-adjusted mean fluorescence intensity (MFI) values were used from both platforms to compare sera collected from 125 pretransplant and posttransplant heart and lung transplant recipients...
November 2017: Transplantation Direct
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