634 research outputs found
Pancreas transplantation using compatible but non‐identical ABO blood group donors
Methods
A review of all pancreas transplants from a single institution from 01/2003 to 07/2016 (n=606) revealed 41 recipients of a NIC donor pancreas which were matched for age, race, gender, year and type of transplant with 41 ABO identical cases. Groups were compared for allograft survival, incidence of acute cellular rejection (ACR), length of hospital stay, 3‐month readmissions and transfusion requirements. Serum haptoglobin and Lactate dehydrogenase were used to identify hemolysis in patients requiring repeated transfusions without overt blood loss.
Results
The 1‐year graft survival was 100% and 88% in the study and control groups. In the study group, 6/41(14%) developed hemolysis, all of which were ABO O into A. All responded to donor blood type specific transfusions.
Discussion
There are limited data on outcomes of solid organ transplant using NIC donors with almost none specifically addressing pancreas transplantation. In this study, graft survival was similar but 14% developed hemolysis, which was transient and treated with transfusion of donor blood type specific blood.
Conclusion
NIC pancreas transplants have similar graft survival compared to ABO identical. Hemolysis may occur so some caution is required
Impact of Donor Pre-Procurement Cardiac Arrest (PPCA) on Clinical Outcomes in Liver Transplantation
BACKGROUND Transplantation of liver grafts from deceased donors who experienced cardiac arrest prior to liver procurement is now common. This single-center study analyzed the impact of pre-donation arrest time on clinical outcomes in liver transplantation. MATERIAL AND METHODS Records of all orthotopic liver transplants performed at a single center over a 15-year period were reviewed. Donor records were reviewed and total arrest time was calculated as cumulative minutes. Post-transplant liver graft function was assessed using laboratory values. Graft survival was assessed with Cox regression analysis. RESULTS Records for 1830 deceased donor transplants were reviewed, and 521 donors experienced pre-procurement cardiac arrest (28%). Median arrest time was 21 min (mean 25 min, range 1-120 min). After transplant, the peak alanine aminotransferase and bilirubin levels for liver grafts from donors with arrest were lower compared to those for donors without arrest (p40 min arrest) demonstrated no statistically significant difference in survival at 10 years. Subgroup analysis of 93 donation after cardiac death grafts showed no significant difference for these same outcomes. CONCLUSIONS These results support the use of select deceased liver donors who experience pre-donation cardiac arrest. Pre-donation arrest may be associated with less early allograft dysfunction, but had no impact on long-term clinical outcomes. The results for donation after cardiac death donors were similar
One Year Incidence of Infection in Pediatric Intestine Transplantation
Background: This study reports the infection rate, location of infection, and pathogen causing bacterial, fungal, or viral infections in intestine transplant recipients at a pediatric transplant center.
Methods: Records from a pediatric center were reviewed for patients receiving an intestine transplant. Positive cultures and pathology reports were used to diagnose bacterial, fungal, and viral infections and also to determine location and infectious agent. Risk for infection was assessed based on liver or colon inclusion, and immunosuppression induction, as part of the intestine transplant.
Results: During the study period 52 intestine transplants were performed on 46 patients. Bacterial, fungal, and viral infection rates were 90%, 25%, and 75%, respectively. Enterococcus (non-vancomycin resistant enterococci (VRE)) species were the most common pathogens and were isolated from 52% of patients. VRE was present in 12% of transplant recipients. Candida species were the most common fungal pathogens (23% of patients). Respiratory viral infections were common (44%) and cytomegalovirus infection rate was 17%. Common sites of infection were bloodstream, urinary, and upper respiratory tract. Colon and liver inclusion in the transplant graft was not associated with increased risk of infection, nor was addition of rituximab to the immunosuppression induction protocol.
Conclusion: Post-intestine transplant infections are ubiquitious in the pediatric population, including high rates of infection from bacterial, viral and fungal sources. Inclusion of the liver and/or colon as a component of the transplant graft did not appear to greatly impact the infectious risk. Adding rituximab to the immunosuppression induction protocol did not impact on infectious risk
Excellent outcomes in combined liver-kidney transplantation: Impact of KDPI and delayed kidney transplantation
The positive impact of delayed kidney transplantation (KT) on patient survival for combined liver-KT (CLKT) has already been demonstrated by our group. The purpose of this study is to identify whether the quality of the kidneys (based on KDPI) or the delayed approach KT contributes to improved patient survival. 130 CLKT were performed between 2002-2015; 69 with simultaneous KT (Group S) and 61 with delayed KT (Group D) (performed as a second operation with a mean cold ischemia time [CIT] of 50±15h). All patients were categorized according to the KDPI score; 1-33%, 34-66%, and 67-99%. Recipient and donor characteristics were comparable within Groups S and D. Transplant outcomes were comparable within Groups S and D, including liver and kidney CIT, warm ischemia time, and delayed graft function. Lower KDPI kidneys (<34%) were associated with increased patient survival in both groups. Combination of delayed KT and KDPI 1-33% resulted in 100% patient survival at 3-years. These results support that delayed KT in CLKT improves patient survival. The combination of delayed KT and low KDPI offers excellent patient survival up to 3-years. Improved outcomes in the delayed KT group including high KDPI kidneys supports expansion of the donor pool with the use of more ECD and DCD kidneys
Moral economies of consumption
The aim of this article is twofold: first, to bring together debates about enduring normative concerns surrounding the morality of consumption with more recent concerns about the ways specific moralities are constituted in and through markets. The second aim is to develop the concept of ‘moral economy’ and call for an approach to its study, attentive to how moralities of consumption develop through interactions between instituted systems of provision, forms of state regulation, customs within communities and the everyday reflections of consumers about the things that matter to them. As consumers are increasingly asked to factor environmental and fair labour concerns into their purchase and post-purchase habits, there is a real need to understand how moralities of consumption are both formatted through institutional frameworks and shaped everyday by actors from within. After developing a framework for the study of moral economies, this article explores in depth the experiences of one couple in relation to the cessation of a cardboard recycling collection in Shropshire (England) to show why a multilevel perspective is needed to appreciate the place of morality within the market
Distinguishing Dirac vs Majorana Neutrinos at CEνNS experiments
A transition magnetic moment between active and sterile neutrinos can induce the Primakoff upscattering process at the coherent elastic neutrino nucleus scattering experiments, leading to very stringent limits on the transition dipole coupling as a function of the sterile neutrino mass. Here we discuss how a novel radiative upscattering mode with an additional photon emitted in the final state can lead to exploration of new parameter space in the transition dipole coupling vs. sterile neutrino mass plane and provide distinguishable differential distributions for a Dirac vs Majorana sterile state mediating such a mode
Transition neutrino magnetic moments in CEνNS
Coherent Elastic Neutrino Nucleus Scattering (CEνNS) is a novel technique to look for new physics beyond the Standard Model. We study the prospects of probing a transition magnetic moment in CEνNS experiments. Showing the NUCLEUS experiment as an example, we demonstrate that properties of a potential sterile neutrino can be deduced
Validity of self-reported criminal justice system involvement in substance abusing women at five-year follow-up
<p>Abstract</p> <p>Background</p> <p>Few studies have compared self-reported criminal behaviour with high-quality databases of criminal offences and judicial sanctions. Self-reported problems from drug abusers are generally believed to be valid. We assessed the validity of self-reported theft, drug offences and prison sentences from a five-year follow-up of female substance abusers who were originally treated in a compulsory care unit in Lund, run by the Swedish Board of Institutional Care.</p> <p>Methods</p> <p>Data from a total of 106 of a consecutive sample of 132 women inter-viewed in a five-year follow-up. All were thoroughly assessed for somatic complaints, psychiatric and psychological problems, background factors with standardized instruments. Data over the five years were linked to official records of judicial sanctions, retrieved from The National Council for Crime Prevention, Stockholm, Sweden. Register data have a full cover for the whole cohort. The current data base contain full data back to 1975 up to 2004.</p> <p>Results</p> <p>Agreement was assessed for each year, as well as for the total period. Statistical control was performed for other types of crimes and prison. Although statistically significant, agreement was modest, and in contrast to previous studies, patients under-reported violence charges.</p> <p>Conclusion</p> <p>The findings suggest that self-reports of criminal behaviour from women can be used with some caution, and that the validity of self-report may vary between types of criminal justice system involvement.</p
Post‐intestine transplant graft‐versus‐host disease: Associated with inclusion of a liver graft and with a high mortality risk
Introduction
This study reports the incidence, anatomic location, and outcomes of graft‐versus‐host disease (GVHD) at a single active intestine transplant center.
Methods
Records were reviewed for all patients receiving an intestine transplant from 2003 to 2015. Pathology reports and pharmacy records were reviewed to establish the diagnosis, location, and therapeutic interventions for GVHD.
Results
A total of 236 intestine transplants were performed during the study period, with 37 patients (16%) developing GVHD. The median time to onset of disease was 83 days, with 89% of affected patients diagnosed in the first year post‐transplant. Mortality for affected patients was 54% in the one‐year after GVHD diagnosis.
Skin lesions were the most common manifestation of GVHD. Other sites of disease included lungs, bone marrow, oral mucosa, large intestine, and brain. The incidence of GVHD was 16% in adult patients, and slightly lower in pediatric recipients (13%). In adults, increasing graft volume (isolated versus multi‐organ) and liver inclusion were associated with increasing risk of GVHD, though this was not seen in pediatric patients.
Conclusion
Overall, 16% of intestine transplant recipients developed GVHD. GVHD is associated with high mortality, and disease in the lungs, brain, and bone marrow was universally fatal
Donation After Circulatory Arrest in Pancreas Transplantation: A Report of 10 Cases
Introduction
Transplantation of pancreas allografts procured from donation after circulatory death (DCD) remains uncommon. This study reviews a series of pancreas transplants at a single center to assess the donor and recipient characteristics for DCD pancreas transplant and to compare clinical outcomes.
Methods
DCD procurement was performed with a 5-minute wait time from pronouncement of death to first incision. In 2 patients, tissue plasminogen activator was infused as a thrombolytic during the donor flush. All kidney grafts were placed on pulsatile perfusion.
Results
There were 606 deceased donor pancreas transplants, 596 standard donors and 10 DCD donors. Of the 10 DCD transplants, 6 were simultaneous pancreas-kidney and 4 were pancreas transplant alone. The average time from incision to aortic cannulation was less than 3 minutes. The median total ischemia time for the DCD grafts was 5.4 hours, compared with 8.0 hours for standard donors (P = .15). Median length of hospital stay was 7 days for both groups, and there were no episode of acute cellular rejection in the first year post-transplant for the DCD group (4.2 % for standard group, P = .65). There was no difference in early or late graft survival, with 100% graft survival in the DCD group up to 1 year post-transplant. Ten-year Kaplan-Meier analysis shows similar graft survival for the 2 groups (P = .92).
Conclusions
These results support the routine use of carefully selected DCD pancreas donors. There were no differences in graft function, postoperative complications, and early and late graft survival
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