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Primary graft dysfunction

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https://www.readbyqxmd.com/read/28524456/endothelial-microparticles-released-by-activated-protein-c-protect-beta-cells-through-epcr-par1-and-annexin-a1-fpr2-pathways-in-islets
#1
Guillaume Kreutter, Mohamad Kassem, Ali El Habhab, Philippe Baltzinger, Malak Abbas, Julie Boisrame-Helms, Lamia Amoura, Jean Peluso, Blandine Yver, Zobairi Fatiha, Geneviève Ubeaud-Sequier, Laurence Kessler, Florence Toti
Islet transplantation is associated with early ischaemia/reperfusion, localized coagulation and redox-sensitive endothelial dysfunction. In animal models, islet cytoprotection by activated protein C (aPC) restores islet vascularization and protects graft function, suggesting that aPC triggers various lineages. aPC also prompts the release of endothelial MP that bear EPCR, its specific receptor. Microparticles (MP) are plasma membrane procoagulant vesicles, surrogate markers of stress and cellular effectors...
May 19, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28524034/-value-of-preoperative-pulmonary-artery-diastolic-pressure-on-predicting-primary-graft-dysfunction-after-bilateral-lung-transplantation-for-patients-with-idiopathic-pulmonary-fibrosis
#2
Feng Zhang, Hongyang Xu, Shuyun Jiang, Jiaqiong Li, Shunmei Lu, Dapeng Wang, Zhidong Zang, Hong Pan, Jingyu Chen
OBJECTIVE: To analyze the value of the potential risk factors on predicting primary graft dysfunction (PGD) after bilateral lung transplantation for the patients with idiopathic pulmonary fibrosis (IPF). METHODS: A retrospective study was conducted. Fifty-eight patients with IPF who underwent the bilateral lung transplantation admitted to Wuxi People's Hospital Affiliated to Nanjing Medical University from June 2014 to March 2017 were enrolled. The grade 3 PGD happened within 72 hours after transplantation was taken as the outcome event, and these patients were divided into PGD and non-PGD groups...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28515852/bilateral-vs-unilateral-internal-mammary-revascularization-in-patients-with-left-ventricular-dysfunction
#3
Batric Popovic, Pablo Maureira, Yves Juilliere, Nicolas Danchin, Damien Voilliot, Fabrice Vanhuyse, Jean Pierre Villemot
AIM: To investigate the survival benefit of bilateral internal mammary artery (BIMA) grafts in patients with left ventricular dysfunction. METHODS: Between 1996 and 2009, we performed elective, isolated, primary, multiple cardiac arterial bypass grafting in 430 consecutive patients with left ventricular ejection fraction ≤ 40%. The early and long-term results were compared between 167 patients undergoing BIMA grafting and 263 patients using left internal mammary artery (LIMA)-saphenous venous grafting (SVG)...
April 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28508451/the-impact-of-left-ventricular-diastolic-dysfunction-on-lung-transplant-outcome-in-patients-with-pulmonary-arterial-hypertension
#4
Avital Avriel, Anat Hershko Klement, Sindhu R Johnson, Marc de Perrot, John Granton
Diastolic dysfunction may influence perioperative outcome, early graft function and long-term survival. We compared the outcomes of DLTx for PAH patients with pre-operative LV diastolic dysfunction to those without diastolic dysfunction. Of 116 consecutive patients with PAH (who underwent transplantation between January 1995 and December 2013), 44 met our inclusion and exclusion criteria. Fourteen patients (31.8%) with diastolic dysfunction pre-LTx had a higher BMI [29 (IQR 21.5-32.6) vs. 22.4 (IRQ 19.9-25...
May 16, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28507543/long-term-monocyte-dysfunction-after-sepsis-in-humanized-mice-is-related-to-persisted-activation-of-macrophage-colony-stimulation-factor-m-csf-and-demethylation-of-pu-1-and-it-can-be-reversed-by-blocking-m-csf-in-vitro-or-by-transplanting-na%C3%A3-ve-autologous
#5
Natalia Lapko, Mateusz Zawadka, Jacek Polosak, George S Worthen, Gwenn Danet-Desnoyers, Monika Puzianowska-Kuźnicka, Krzysztof Laudanski
The duration of post-sepsis long-term immune suppression is poorly understood. Here, we focused on the role of monocytes (MO) as the pivotal cells for long-term regulation of post-sepsis milieu. Lost ability of MO to adapt is seen in several acute conditions, but it is unclear for how long MO aberrancy post-sepsis can persist. Interestingly, the positive feedback loop sustaining secretion of macrophage-colony stimulation factor (M-CSF) can persist even after resolution of sepsis and significantly alters performance of MO...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28502521/-extracorporeal-life-support-in-thoracic-surgery-what-are-the-indications-and-the-pertinence
#6
REVIEW
J Reeb, A Olland, S Renaud, O Collange, X Delabranche, N Santelmo, F Meziani, P-M Mertes, G Massard, P-E Falcoz
INTRODUCTION: In thoracic surgery, extracorporeal life support (ECLS) technologies are used in cases of severe and refractory respiratory failure or as intraoperative cardiorespiratory support. The objectives of this review are to describe the rationale of ECLS techniques, to review the pulmonary diseases potentially treated by ECLS, and finally to demonstrate the efficacy of ECLS, using recently published data from the literature, in order to practice evidence based medicine. STATE OF THE ART: ECLS technologies should only be undertaken in expert centers...
May 12, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28483776/calcification-and-oxidative-modifications-are-associated-with-progressive-bioprosthetic-heart-valve-dysfunction
#7
Suengwon Lee, Robert J Levy, Abigail J Christian, Stanley L Hazen, Nathan E Frick, Eric K Lai, Juan B Grau, Joseph E Bavaria, Giovanni Ferrari
BACKGROUND: Bioprosthetic heart valves (BHVs), fabricated from glutaraldehyde-pretreated bovine pericardium or porcine aortic valves, are widely used for the surgical or interventional treatment of heart valve disease. Reoperation becomes increasingly necessary over time because of BHV dysfunction. METHODS AND RESULTS: Forty-seven explanted BHV aortic valve replacements were retrieved at reoperation for clinically severe BHV dysfunction over the period 2010-2016...
May 8, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28483202/comparison-of-outcomes-of-coronary-artery-bypass-grafting-versus-drug-eluting-stent-implantation-in-patients-with-severe-left-ventricular-dysfunction
#8
Se Hun Kang, Cheol Whan Lee, Seunghee Baek, Pil Hyung Lee, Jung-Min Ahn, Duk-Woo Park, Soo-Jin Kang, Seung-Whan Lee, Young-Hak Kim, Seong-Wook Park, Seung-Jung Park
The optimal revascularization strategy for patients with significant coronary artery disease (CAD) and severe left ventricular (LV) dysfunction (ejection fraction ≤35%) remains unclear. We compared the effects of coronary artery bypass surgery (CABG, n = 442) versus percutaneous coronary intervention (PCI) with drug-eluting stents (n = 469) on long-term mortality in 911 patients with significant CAD and severe LV dysfunction using large real-world registry data. Databases of 3 real-world registries were merged for a patient-level meta-analysis...
April 12, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28470870/a-multicenter-study-on-long-term-outcomes-after-lung-transplantation-comparing-donation-after-circulatory-death-and-donation-after-brain-death
#9
V van Suylen, B Luijk, R A S Hoek, E A van de Graaf, E A Verschuuren, C Van De Wauwer, J A Bekkers, R C A Meijer, W van der Bij, M E Erasmus
The implementation of donation after circulatory death category 3 (DCD3) was one of the attempts to reduce the gap between supply and demand of donor lungs. In the Netherlands, the total number of potential lung donors was greatly increased by the availability of DCD3 lungs in addition to the initial standard usage of donation after brain death (DBD) lungs. From the three lung transplant centers in the Netherlands, 130 DCD3 recipients were one-to-one nearest neighbor propensity score matched with 130 DBD recipients...
May 4, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28469087/models-of-lung-transplant-research-a-consensus-statement-from-the-national-heart-lung-and-blood-institute-workshop
#10
REVIEW
Vibha N Lama, John A Belperio, Jason D Christie, Souheil El-Chemaly, Michael C Fishbein, Andrew E Gelman, Wayne W Hancock, Shaf Keshavjee, Daniel Kreisel, Victor E Laubach, Mark R Looney, John F McDyer, Thalachallour Mohanakumar, Rebecca A Shilling, Angela Panoskaltsis-Mortari, David S Wilkes, Jerry P Eu, Mark R Nicolls
Lung transplantation, a cure for a number of end-stage lung diseases, continues to have the worst long-term outcomes when compared with other solid organ transplants. Preclinical modeling of the most common and serious lung transplantation complications are essential to better understand and mitigate the pathophysiological processes that lead to these complications. Various animal and in vitro models of lung transplant complications now exist and each of these models has unique strengths. However, significant issues, such as the required technical expertise as well as the robustness and clinical usefulness of these models, remain to be overcome or clarified...
May 4, 2017: JCI Insight
https://www.readbyqxmd.com/read/28457380/overexpression-of-hypoxia-inducible-factor-1%C3%AE-in-primary-graft-dysfunction-developing-in-an-orthotopic-lung-transplantation-rat%C3%A2-model
#11
F Lunardi, D Zampieri, M Vadori, D Bernardini, S E Vuljan, N Nannini, F Rea, E Cozzi, F Calabrese
BACKGROUND: Primary graft dysfunction (PGD) is the major cause of early morbidity and mortality after transplantation. A high rate of PGD is a frequent complication in orthotopic lung transplantation (OLT) models, which are currently used to investigate acute and chronic rejection pathways. Hypoxia-inducible factor (HIF)-1α is a heterodimeric αβ transcription factor that mediates tissue response to hypoxia. In other solid organ transplantations, a significant correlation between HIF-1α expression and PGD was detected...
May 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28457371/lobar-lung-transplantation-from-deceased-donor-monocentric-experience
#12
P Mendogni, A Palleschi, D Tosi, I Righi, M Montoli, F Damarco, L C Morlacchi, L Santambrogio, M Nosotti, L Rosso
INTRODUCTION: Lung transplantation is considered a therapeutic option in selected patients affected by end-stage pulmonary disease. The mortality on the waiting list is mainly attributed to the shortage of the donor pool available for transplantation. There are various strategies to overcome this shortage; one of them is lobar transplantation. METHODS: The aim of the current study was to analyze the outcome of lobar lung transplantation from deceased donors in our Lung Transplant Center...
May 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28449046/prone-positioning-as-a-bridge-to-recovery-from-refractory-hypoxaemia-following-lung-transplantation%C3%A2
#13
Jordi Riera, Carolina Maldonado, Cristopher Mazo, María Martínez, Jaume Baldirà, Leonel Lagunes, Salvador Augustin, Antonio Roman, Maria Due, Jordi Rello, Deborah J Levine
OBJECTIVES: Refractory hypoxaemia is the leading cause of mortality in the postoperative period after lung transplantation. The role of prone positioning as a rescue therapy in this setting has not been assessed. We evaluated its effects in lung transplant recipients presenting refractory hypoxaemia following the surgery. METHODS: Prospectively collected data from 131 consecutive adult patients undergoing lung transplantation between January 2013 and December 2014 were evaluated...
April 25, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28437223/exercise-and-peripheral-nerve-grafts-as-a-strategy-to-promote-regeneration-after-acute-or-chronic-spinal-cord-injury
#14
Catherine C Theisen, Rahul Sachdeva, Scarlett Austin, Danielle Kulich, Victoria Kranz, John D Houle
Therapeutic interventions after spinal cord injury (SCI) routinely are designed to address multiple aspects of the primary and/or secondary damage that occurs. Exercise has a demonstrated efficacy for post-SCI complications such as cardiovascular dysfunction, neuropathic pain, and chronic inflammation, yet there is little understanding of the mechanisms by which improvements might result from this non-invasive approach. Here we review several of our observations of molecular and cellular changes within the injured spinal cord following acute or delayed exercise regimens that illustrate the potential for positive effects on neuroprotection and rehabilitation...
May 15, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28431981/ventricular-assist-device-elicits-serum-natural-igg-that-correlates-with-the-development-of-primary-graft-dysfunction-following-heart-transplantation
#15
Sarah B See, Kevin J Clerkin, Peter J Kennel, Feifan Zhang, Matthew P Weber, Kortney J Rogers, Debanjana Chatterjee, Elena R Vasilescu, George Vlad, Yoshifumi Naka, Susan W Restaino, Maryjane A Farr, Veli K Topkara, Paolo C Colombo, Donna M Mancini, P Christian Schulze, Bruce Levin, Emmanuel Zorn
BACKGROUND: Pre-transplant sensitization is a limiting factor in solid-organ transplantation. In heart transplants, ventricular assist device (VAD) implantation has been associated with sensitization to human leukocyte antigens (HLA). The effect of VAD on non-HLA antibodies is unclear. We have previously shown that polyreactive natural antibodies (Nabs) contribute to pre-sensitization in kidney allograft recipients. Here we assessed generation of Nabs after VAD implantation in pre-transplant sera and examined their contribution to cardiac allograft outcome...
March 24, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28415888/bioengineered-gold-nanoparticles-targeted-to-mesenchymal-cells-from-patients-with-bronchiolitis-obliterans-syndrome-does-not-rise-the-inflammatory-response-and-can-be-safely-inhaled-by-rodents
#16
Emanuela Cova, Simona Inghilleri, Laura Pandolfi, Monica Morosini, Sara Magni, Miriam Colombo, Davide Piloni, Chiara Finetti, Gabriele Ceccarelli, Laura Benedetti, Maria Gabriella Cusella, Manuela Agozzino, Fabio Corsi, Raffaele Allevi, Simona Mrakic-Sposta, Sarah Moretti, Simona De Gregori, Davide Prosperi, Federica Meloni
The use of gold nanoparticles as drug delivery system represents a promising issue for diseases without effective pharmacological treatment due to insufficient local drug accumulation and excessive systemic toxicity. Bronchiolitis obliterans syndrome (BOS) represents about 70% of cases of chronic lung allograft dysfunction, the main challenge to long term lung transplantation. It is believed that due to repeated insults to epithelial bronchiolar cells local inflammatory response creates a milieu that favours epithelial mesenchymal transition and activation of local mesenchymal cells leading to airway fibro-obliteration...
April 18, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28403210/molecular-adsorbent-recirculating-system-mars-in-acute-liver-injury-and-graft-dysfunction-results-from-a-case-control-study
#17
Hans U Gerth, Michele Pohlen, Gerold Thölking, Hermann Pavenstädt, Marcus Brand, Christian Wilms, Anna Hüsing-Kabar, Dennis Görlich, Iyad Kabar, Hartmut H J Schmidt
BACKGROUND: The primary therapeutic goals in the treatment of liver injury are to support liver regeneration or bridge the gap to liver transplantation (LT). Molecular adsorbent recirculating system (MARS) therapy has shown beneficial effects for specific symptoms of liver failure; however, general survival advantages have not yet been demonstrated. AIM: We studied the effects of MARS therapy compared to standard medical treatment (SMT) in two patient cohorts: in patients with an acute liver injury and in those with graft dysfunction (GD)...
2017: PloS One
https://www.readbyqxmd.com/read/28392101/surgical-and-endovascular-treatments-of-extracranial-carotid-artery-aneurysms-report-of-six-cases
#18
Shusuke Yamamoto, Naoki Akioka, Daina Kashiwazaki, Masaki Koh, Naoya Kuwayama, Satoshi Kuroda
BACKGROUND: Although the natural course of extracranial carotid artery aneurysms (ECAAs) is still unknown, they may cause stroke or cranial nerve dysfunction unless they are treated. In this report, we reviewed the clinical results of 6 patients who underwent endovascular and surgical treatments for ECAAs. METHODS: A total of 6 patients underwent endovascular and surgical treatments for ECAAs for 9 years. The primary causes of ECAAs included Marfan syndrome (1 patient), infection (1 patient), trauma (2 patients), and unknown (2 patients)...
April 6, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28389600/intravascular-donor-monocytes-play-a-central-role-in-lung-transplant-ischaemia-reperfusion-injury
#19
Kate Colette Tatham, Kieran Patrick O'Dea, Rosalba Romano, Hannah Elizabeth Donaldson, Kenji Wakabayashi, Brijesh Vipin Patel, Louit Thakuria, Andre Rudiger Simon, Padmini Sarathchandra, Nandor Marczin, Masao Takata
RATIONALE: Primary graft dysfunction in lung transplant recipients derives from the initial, largely leukocyte-dependent, ischaemia-reperfusion injury. Intravascular lung-marginated monocytes have been shown to play key roles in experimental acute lung injury, but their contribution to lung ischaemia-reperfusion injury post transplantation is unknown. OBJECTIVE: To define the role of donor intravascular monocytes in lung transplant-related acute lung injury and primary graft dysfunction...
April 7, 2017: Thorax
https://www.readbyqxmd.com/read/28331451/vanishing-bronchus-after-lung-transplantation-the-role-of-sequential-airway-dilatations
#20
Abdul Hamid Alraiyes, Hanine Inaty, Michael S Machuzak
BACKGROUND: Airway complications after lung transplant play an important role in patient survival. Early recognition and treatment of these complications are necessary to help ensure that patients who receive lung transplants have good outcomes. CASE REPORT: A 61-year-old female with a history of pulmonary venous occlusive disease presented to our hospital for a double-lung transplant. Her postoperative course was complicated by severe primary graft dysfunction...
2017: Ochsner Journal
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