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Donor management

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https://www.readbyqxmd.com/read/29774598/evaluation-of-current-strategies-for-surveillance-and-management-of-donor-specific-antibodies-single-center-study
#1
Daniel Sullivan, Chul Ahn, Ang Gao, Chantale Lacelle, Fernando Torres, Srinivas Bollineni, Amit Banga, Jessica Mullins, Manish Mohanka, Steve Ring, Michael Wait, Matthias Peltz, Pavan Duddupudi, Dhiraj Surapaneni, Vaidehi Kaza
BACKGROUND: Although, presence of donor specific antibodies (DSA) is known to impact lung allograft, limited data exists regarding DSA management. METHODS: We did a retrospective study at our center evaluating DSA management in adult lung transplant recipients undergoing lung transplantation between January 1, 2010 and June 30, 2014. Study follow up was completed through October 2017. All recipients were stratified into two groups based on the presence or absence of DSA...
May 17, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29773782/diagnosis-incidence-predictors-and-management-of-postreperfusion-syndrome-in-pediatric-deceased-donor-liver-transplantation-a-single-center-study
#2
Liang Zhang, Ming Tian, Fushan Xue, Zhijun Zhu
BACKGROUND Postreperfusion syndrome (PRS) is a dreadful and well-documented complication in adult liver transplantation (LT). However, information regarding PRS in pediatric LT is still scarce. We aimed to identify the incidence, risk factors and associated outcomes of pediatric LT in a single-center study. MATERIAL AND METHODS The medical records of 75 consecutive pediatric patients who underwent deceased donor liver transplantation (DDLT) from July 2015 to October 2017 were retrospectively reviewed. PRS was determined according to the Peking criteria when significant arrhythmia or refractory hypotension occurred following revascularization of the liver graft...
May 18, 2018: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29770299/regenerative-medicine-therapy-for-single-ventricle-congenital-heart-disease
#3
REVIEW
Chetan Ambastha, Gregory J Bittle, David Morales, Nathaniel Parchment, Progyaparamita Saha, Rachana Mishra, Sudhish Sharma, Alexander Vasilenko, Muthukumar Gunasekaran, Manal T Al-Suqi, Deqiang Li, Peixin Yang, Sunjay Kaushal
One of the most complex forms of congenital heart disease (CHD) involving single ventricle physiology is hypoplastic left heart syndrome (HLHS), characterized by underdevelopment of the left ventricle (LV), mitral and aortic valves, and narrowing of the ascending aorta. The underdeveloped LV is incapable of providing long-term systemic flow, and if left untreated, the condition is fatal. Current treatment for this condition consists of three consecutive staged palliative operations: the first is conducted within the first few weeks of birth, the second between 4 to 6 months, and the third and final surgery within the first 4 years...
April 2018: Translational Pediatrics
https://www.readbyqxmd.com/read/29769179/rna-profiles-of-circulating-tumor-cells-and-extracellular-vesicles-for-therapy-stratification-of-metastatic-breast-cancer-patients
#4
Corinna Keup, Pawel Mach, Bahriye Aktas, Mitra Tewes, Hans-Christian Kolberg, Siegfried Hauch, Markus Sprenger-Haussels, Rainer Kimmig, Sabine Kasimir-Bauer
BACKGROUND: Liquid biopsies are discussed to provide surrogate markers for therapy stratification and monitoring. We compared messenger RNA (mRNA) profiles of circulating tumor cells (CTCs) and extracellular vesicles (EVs) in patients with metastatic breast cancer (MBC) to estimate their utility in therapy management. METHODS: Blood was collected from 35 hormone receptor-positive/HER2-negative patients with MBC at the time of disease progression and at 2 consecutive staging time points...
May 16, 2018: Clinical Chemistry
https://www.readbyqxmd.com/read/29767836/how-do-we-manage-iron-deficiency-after-blood-donation
#5
REVIEW
Joseph E Kiss, Ralph R Vassallo
Blood donors and the RBCs and other components they willingly provide are essential in the delivery of healthcare in all parts of the world. Nearly 70% of donated blood comes from repeat or committed donors. The amount of iron removed in the 10 min or so it takes to withdraw a unit of blood (500 ml, plus 25 ml for testing) requires over 24 weeks to replace on a "standard" diet, i.e., without added iron in the form of supplements The cumulative effect of repeat blood donations without adequate iron replacement or a longer wait between donations results in iron deficiency (ID) in many donors, low haemoglobin deferral (~8% of donation attempts), and frank anaemia in some...
May 16, 2018: British Journal of Haematology
https://www.readbyqxmd.com/read/29765590/a-case-of-rhabdomyolysis-after-kidney-transplantation-successfully-managed-with-intensive-continuous-dialysis
#6
Rauf Shahbazov, Michael Fox, Jennifer L Alejo, Malik A Anjum, Feredun Azari, Alden Doyle, Avinash Agarwal, Kenneth L Brayman
Rhabdomyolysis is characterized by muscle cell death which can result in acute kidney injury from pigment nephropathy. We present a patient who developed rhabdomyolysis immediately after deceased donor kidney transplantation surgery and was managed with continuous renal replacement therapy that resulted in successful salvage of the kidney allograft. Patients who develop acute kidney failure requiring renal replacement therapy generally have a poor prognosis. It is worth noting that while continuous veno-venous hemofiltration (CVVHF) offers greater volume support and continuous clearance compared to hemodialysis (HD), recent studies have demonstrated no clinically significant improvement in clinical outcome between the two...
April 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29758329/endovascular-treatment-for-a-true-aneurysm-of-the-transplant-renal-artery-using-noncovered-stent-assisted-coil-embolization
#7
Zhenjiang Li, Yiming Li, Zaiping Jing, Rui Feng
True degenerative aneurysms involving the donor renal artery after kidney transplantation are rather rare. The indications for operation and optimal therapy to combat this vascular complication are still not clear. Surgical revision has been used as a potential treatment; nonetheless, it has been associated with high risk of complications. In the present study, we report on a 31-year-old woman with a true aneurysm located at transplant renal artery after transplantation that was successfully managed with stent-assisted coil embolization, resulting in occluded aneurysm sac and well-preserved renal function without any complication...
May 11, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29756177/interspecific-germ-cell-transplantation-a-new-light-in-the-conservation-of-valuable-balkan-trout-genetic-resources
#8
Jelena Lujić, Zoran Marinović, Simona Sušnik Bajec, Ida Djurdjevič, Béla Urbányi, Ákos Horváth
Interspecific transplantation of germ cells from the brown trout Salmo trutta m. fario and the European grayling Thymallus thymallus into rainbow trout Oncorhynchus mykiss recipients was carried out in order to improve current practices in conservation of genetic resources of endangered salmonid species in the Balkan Peninsula. Current conservation methods mainly include in situ efforts such as the maintenance of purebred individuals in isolated streams and restocking with purebred fingerlings; however, additional ex situ strategies such as surrogate production are needed...
May 13, 2018: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29754130/urothelial-carcinoma-of-an-allograft-ureter-10-years-after-deceased-donor-kidney-transplantation
#9
Kevin P Gaughan, Usman Haroon, Niall F Davis, Ponnusamy Mohan
The incidence of urothelial carcinoma (UC; formerly transitional cell carcinoma) is higher among renal transplant recipients compared with the general population. Upper urinary tract UC (UUT-UC) of allograft urothelium is a rare event with approximately 40 cases reported in the literature. Herein, we describe the clinical presentation and management of UUT-UC in a transplant ureter 10 years after deceased donor kidney transplantation.
May 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29753848/outcomes-of-conservative-management-of-asymptomatic-live-donor-kidney-stones
#10
Mehmet Sarier, Ibrahim Duman, Mehmet Callioglu, Ahmet Soylu, Sabri Tekin, Emrah Celep, Hasan Turan, Asuman Havva Yavuz, Alper Demirbas, Erdal Kukul
OBJECTIVES: To evaluate the long-term outcomes of asymptomatic stones ≤4 mm which are left in situ during renal transplantation (RT). METHODS: Between 2009 and 2017, 31 patients who received stone-bearing (≤4 mm) kidneys were analyzed. At their last follow-up, the patients were evaluated with CT imaging and the results were compared to the initial CT findings obtained during donor evaluation. RESULTS: The mean stone size was 2.9mm (range 1-4...
May 10, 2018: Urology
https://www.readbyqxmd.com/read/29753231/vascular-brain-derived-neurotrophic-factor-pathway-in-rats-with-adjuvant-induced-arthritis-effect-of-anti-rheumatic-drugs
#11
Martin Pedard, Aurore Quirié, Perle Totoson, Frank Verhoeven, Philippe Garnier, Anne Tessier, Céline Demougeot, Christine Marie
BACKGROUND AND AIMS: In rheumatoid arthritis, the control of both disease activity and standard cardiovascular (CV) risk factors is expected to attenuate the increased CV risk. Evidence that brain-derived neurotrophic factor (BDNF) plays a role in vascular biology led us to investigate the vascular BDNF pathway in arthritis rats as well as the interaction between endothelial nitric oxide (NO) and BDNF production. METHODS: The aortic BDNF pathway was studied in rats with adjuvant-induced arthritis, (AIA) using Western blot and immunohistochemical analysis...
May 2, 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29751884/acute-chronic-and-humoral-rejection-pathologic-features-under-current-immunosuppressive-regimes
#12
REVIEW
Jamie Koo, Hanlin L Wang
Under current immunosuppressive regimes, T-cell-mediated acute and chronic rejection remain common and important posttransplant complications. The definition of humoral (antibody-mediated) rejection has been greatly expanded in recent years. The histopathologic assessment of allograft biopsies continues to serve an important role in the diagnosis of rejection and to facilitate patient management. The diagnosis of both acute and chronic antibody-mediated rejection requires integration of the results of donor-specific antibody testing and C4d immunostaining, as well as exclusion of other potential etiologies of allograft dysfunction...
June 2018: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/29748666/new-perspectives-for-triplet-triplet-annihilation-based-photon-upconversion-using-all-organic-energy-donor-acceptor-chromophores
#13
Manoj K Manna, Siamak Shokri, Gary P Wiederrecht, David J Gosztola, A Jean-Luc Ayitou
It is recognized that metal organic complexes that serve as sensitizers can present various degrees of challenges viz. synthesis and stability for photonic applications such as triplet-triplet annihilation based photon upconversion (TTA-PUC). Presently, researchers, including our group, are turning their attention toward purely organic triplet sensitizers, which can be handled more easily for photon management science. In this review, we surveyed recently developed all-organic chromophoric systems that were devised and used for TTA-PUC research...
May 11, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29746676/future-of-care-for-patients-with-chronic-granulomatous-disease-gene-therapy-and-targeted-molecular-medicine
#14
Michael D Keller, Luigi D Notarangelo, Harry L Malech
Chronic granulomatous disease is a rare and potentially fatal disorder of neutrophil function. Beyond current medical management and hematopoietic stem cell transplantation, new methods of gene therapy that use lentiviral vectors or gene editing might extend curative therapies to patients who lack a suitable transplantation donor while eliminating the risk of graft-versus-host disease. Furthermore, new therapies focused on altering the biology of phagolysosomes might offer novel targeted treatments for inflammatory complications in patients with chronic granulomatous disease...
May 9, 2018: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/29746279/free-style-capillary-perforator-based-island-flaps-for-reconstruction-of-skin-cancer-defects-of-the-face-body-and-extremities
#15
Giuseppe Visconti, Marzia Salgarello
BACKGROUND: The perforator flap concept has revolutionized reconstructive surgery. Recently, the attention has moved toward flaps based on capillary perforators, which have been usually neglected in the past as reliable perforators. The aim of this article is to report a series of freestyle capillary perforator-based island flap (c-PBIF) for reconstruction of skin cancer defects of the face, body, and extremities. PATIENTS AND METHODS: Between September 2015 and July 2017, 20 consecutive patients underwent c-PBIF reconstruction of facial, body, and limb defects after melanoma and nonmelanoma skin cancer excision...
April 30, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29742565/current-challenges-and-opportunities-in-the-management-of-antibody-mediated-rejection-in-lung-transplantation
#16
Amanda L Hulbert, Elizabeth N Pavlisko, Scott M Palmer
PURPOSE OF REVIEW: There is increasing recognition of the importance of antibody-mediated rejection (AMR) after lung transplantation. The development of donor-specific antibodies, a key feature of AMR, occurs in approximately 30% of lung transplant recipients and is associated with poor posttransplant outcomes. This review highlights recently developed AMR diagnostic criteria in lung transplantation, potential mechanisms that mediate the development of AMR, and discusses current and emerging treatment strategies for this significant, graft-limiting complication...
June 2018: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/29741673/strengthening-decentralized-primary-healthcare-planning-in-nigeria-using-a-quality-improvement-model-how-contexts-and-actors-affect-implementation
#17
Ejemai Amaize Eboreime, Nonhlanhla Nxumalo, Rohit Ramaswamy, John Eyles
Quality improvement models have been applied across various levels of health systems with varying success leading to scepticisms about effectiveness. Health systems are complex, influenced by contexts and characterized by numerous interests. Thus, a shift in focus from examining whether improvement models work, to understanding why, when and where they work most effectively is essential. Nigeria introduced DIVA (Diagnose-Intervene-Verify-Adjust) as a model to strengthen decentralized PHC planning. However, implementation has been poorly sustained...
May 8, 2018: Health Policy and Planning
https://www.readbyqxmd.com/read/29740456/newly-identified-wild-rice-accessions-conferring-high-salt-tolerance-might-use-a-tissue-tolerance-mechanism-in-leaf
#18
Manas R Prusty, Sung-Ryul Kim, Ricky Vinarao, Frederickson Entila, James Egdane, Maria G Q Diaz, Kshirod K Jena
Cultivated rice ( Oryza sativa L.) is very sensitive to salt stress. So far a few rice landraces have been identified as a source of salt tolerance and utilized in rice improvement. These tolerant lines primarily use Na+ exclusion mechanism in root which removes Na+ from the xylem stream by membrane Na+ and K+ transporters, and resulted in low Na+ accumulation in shoot. Identification of a new donor source conferring high salt tolerance is imperative. Wild relatives of rice having wide genetic diversity are regarded as a potential source for crop improvement...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29740429/rapid-flow-cytometry-based-test-for-the-diagnosis-of-lipopolysaccharide-responsive-beige-like-anchor-lrba-deficiency
#19
Laura Gámez-Díaz, Elena C Sigmund, Veronika Reiser, Werner Vach, Sophie Jung, Bodo Grimbacher
The diagnosis of lipopolysaccharide-responsive beige-like-anchor-protein (LRBA) deficiency currently relies on gene sequencing approaches that do not support a timely diagnosis and clinical management. We developed a rapid and sensitive test for clinical implementation based on the detection of LRBA protein by flow cytometry in peripheral blood cells after stimulation. LRBA protein was assessed in a prospective cohort of 54 healthy donors and 57 patients suspected of LRBA deficiency. Receiver operating characteristics analysis suggested an LRBA:MFI ratio cutoff point of 2...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29736370/a-brief-review-on-anterior-urethral-strictures
#20
REVIEW
Li Cheng, Sen Li, Zicheng Wang, Bingwei Huang, Jian Lin
The treatment of urethral strictures remains a challenging field in urology even though there are a variety of procedures to treat it at present, as no one approach is superior over another. This paper reviewed the surgical options for the management of different sites and types of anterior urethral stricture, providing a brief discussion of the controversies regarding this issue and suggesting possible future advancements. Among the existing procedures, simple dilation and direct vision internal urethrotomy are more commonly used for short urethral strictures ( <1 cm, soft and no previous intervention)...
April 2018: Asian Journal of Urology
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