Publications by authors named "Anthony M D'Alessandro"

Article Synopsis
  • This study compares two methods of preserving donor livers for transplantation: traditional static cold storage (SCS) and normothermic machine perfusion (NMP) which keeps the organs at body temperature.
  • The research involved 383 donor livers from various US transplant centers, and while there was no significant difference in early allograft dysfunction rates overall, NMP showed better outcomes for higher-risk donors, particularly in cases of organ donation after circulatory death.
  • The conclusion suggests that while NMP may not lower early liver injury rates universally, it is safe and potentially more beneficial for marginal donor livers.
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Congenital cytomegalovirus (cCMV) is the most common congenital infection. Here, we report on a case of severe, refractory cCMV hepatitis resulting in end-stage liver disease. A male infant born at 37 weeks gestational age presented with petechiae, splenomegaly, and jaundice associated with a direct hyperbilirubinemia, elevated transaminases, and thrombocytopenia.

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We perform routine preprocurement image-guided percutaneous liver biopsies on potential donation after circulatory death (DCD) liver donors. The purpose of this study was to examine the impact of preprocurement liver biopsy on the use of livers from DCD donors. We retrospectively reviewed demographics, liver histology, and disposition of DCD liver donors within a single organ procurement organization (OPO) who underwent preprocurement liver biopsy from January 2000 through December 2019.

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Background: Complement activation in kidney transplantation is implicated in the pathogenesis of delayed graft function (DGF). This study evaluated the therapeutic efficacy of high-dose recombinant human C1 esterase inhibitor (rhC1INH) to prevent DGF in a nonhuman primate model of kidney transplantation after brain death and prolonged cold ischemia.

Methods: Brain death donors underwent 20 h of conventional management.

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Although guidance documents have been published regarding organ donation from individuals with a prior history of COVID-19 infection, no data exist regarding successful recovery and transplantation from deceased donors with a history of or positive testing suggesting a prior SARS-CoV-2 infection. Here, we report a case series of six deceased donors with a history of COVID-19 from whom 13 organs were recovered and transplanted through several of the nation's organ procurement organizations (OPOs). In addition, at least two potential donors were authorized for donation but with no organs were successfully allocated and did not proceed to recovery.

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Background/aim: The progression of chronic kidney disease (CKD) in recipients of living-donor liver transplant (LDLT) compared to deceased-donor liver transplant (DDLT) has not been studied in the literature. We hypothesize that CKD stage progression in LDLT recipients is reduced compared to that of their DDLT counterparts.

Materials And Methods: A retrospective study was undertaken including 999 adult, single-organ, primary liver transplant recipients (218 LDLT and 781 DDLT) at 2 centers between January 2003 and December 2012, in which CKD progression and regression were evaluated within the first 3 years after transplantation.

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The acceptable threshold remains unknown for the percentage of macrosteatosis (MaS) and microsteatosis (MiS) to yield optimal outcomes after donation after circulatory death (DCD) liver transplantation (LT). The purpose of this analysis was to determine the impact of donor liver MaS and MiS on DCD LT outcomes. Using the Organ Procurement and Transplantation Network database, we analyzed pretransplant biopsy results from adult, solitary, DCD livers transplanted between January 1, 2006, and December 31, 2017.

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Delayed graft function (DGF) in renal transplant is associated with reduced graft survival and increased immunogenicity. The complement-driven inflammatory response after brain death (BD) and posttransplant reperfusion injury play significant roles in the pathogenesis of DGF. In a nonhuman primate model, we tested complement-blockade in BD donors to prevent DGF and improve graft survival.

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Background: Brain death (BD)-associated inflammation has been implicated in decreased kidney allograft function and survival, but the underlying mechanisms have not been well distinguished from the conditions of critical care itself. We have developed a clinically translatable model to separate and investigate strategies to improve donor management and critical care.

Methods: Brain-dead (n = 12) and sham (n = 5) rhesus macaques were maintained for 20 hours under intensive care unit-level conditions.

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Article Synopsis
  • - Ethylmalonic encephalopathy (EE) is a serious genetic disease caused by mutations in the ETHE1 gene, leading to issues such as developmental delays, neurological symptoms, and various physical health problems.
  • - Diagnosis typically involves identifying high levels of lactate and specific metabolites in the blood and urine, linked to a buildup of harmful substances due to a deficiency in a crucial enzyme for mitochondrial function.
  • - Treatment has evolved from medication aimed at reducing toxic metabolites to include liver transplants, with recent cases showing significant improvement in patients' development after surgery, marking a hopeful advancement for a previously fatal condition.
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Introduction: Renal transplant outcomes result from a combination of factors. Traditionally, donor factors were summarized by classifying kidneys as extended criteria or standard criteria. In 2014, the nomenclature changed to describe donor factors with the kidney donor profile index (KDPI).

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Background: Many strategies regarding timing of native nephrectomies exist for patients with symptomatic polycystic kidney disease (PCKD).

Methods: This is a single-center, retrospective study of 594 adults with PCKD who had renal transplants from 1994 to 2014. Three groups were analyzed: renal transplant-only recipients (tx alone), recipients of simultaneous bilateral nephrectomies and transplant (simultaneous), and recipients with pretransplant bilateral nephrectomies (pre).

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Introduction: The development of a translatable brain death animal model has significant potential to advance not only transplant research, but also the understanding of the pathophysiologic changes that occur in brain death and severe traumatic brain injury. The aim of this paper is to describe a rhesus macaque model of brain death designed to simulate the average time and medical management described in the human literature.

Methods: Following approval by the Institutional Animal Care and Use Committee, a brain death model was developed.

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Objectives: To compare the efficacy of a single dose of basiliximab with two doses in preventing acute rejection in selected low-risk renal transplant recipients.

Methods: This observational study of 760 kidney transplant recipients considered to be at low immunologic risk (peak panel reactive antibody less than 10%) compared patient and graft outcomes following a single-dose versus a two-dose regimen of basiliximab.

Main Results: No differences were found in patient survival (92% vs 92%, p=0.

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The LDLT option in the pediatric population allows recipients to be transplanted early. A total of 202 consecutive pediatric liver transplants from two different institutions--108 (LDLT) and 94 (DDLT)--were retrospectively compared. Overall, one- and three-yr patient and graft survival were similar between DDLT and LDLT.

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Objective: The objective of this study was to determine the fate of patients who attempted to donate organs after circulatory death (DCD) using a standardized DCD protocol.

Background: Successful donation is not always possible after attempted DCD.

Methods: Data were collected for all DCD donors between 1/2011 and 9/2014.

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Background: Recent evidence suggests that de novo donor-specific antibodies (dnDSA) are associated with antibody-mediated rejection (ABMR) and graft failure after kidney transplantation. The effects of induction immunosuppression on dnDSA are unknown.

Methods: The study population comprised 114 consecutive moderately sensitized (positive DSA and negative flow crossmatch) recipients who received deceased donor renal transplants between December 2009 and November 2011.

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The significance of preexisting donor-specific HLA antibodies (HLA-DSAs) for liver allograft function is unclear. Our previous studies have shown that humoral alloreactivity frequently accompanies acute cellular rejection (ACR). In the present study, we set out to determine whether pretransplant HLA-DSAs correlate with clinically significant ACR in the first 90 days after transplantation and, if so, to determine their predictive values.

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Introduction: The incidence of chronic kidney disease (CKD) in liver transplant recipients has been estimated to be from 18% to 28% at 10 yr after transplantation. As outcomes from liver transplantation continue to improve, long-term native kidney function in these recipients becomes more critical to patient survival.

Methods: We analyzed 1151 adult, deceased-donor, single-organ primary liver transplantations performed at our center between 7/17/84 and 12/31/07.

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This report focuses on the University of Wisconsin Hospital and Clinics organ procurement organization's efforts to increase deceased organ and tissue donation by using social media and personalized messages targeting members of university student organizations, their families, and their friends. A grant from the US Department of Health and Human Services funded a 2-year study to (1) identify barriers/opportunities for increasing awareness, attitudes, and behaviors related to organ and tissue donation; (2) implement an intervention using social media and personalized message to increase knowledge, support, and donor registrations; (3) measure impact on awareness and attitudinal and behavioral changes within the organization; and (4) assess behavioral measures across a host of social media analytics and organ donor registrations. The results show increases in knowledge about and support for organ donation, including a 20% increase in donor registration.

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Context: Despite the fact that college students support social causes, this age group has underparticipated in organ donor registration. Little research attention has been given to understanding deeper, higher-order relationships between the antecedent attitudes toward and perceptions of organ donation and registration behavior.

Objective: To test a process model useful for understanding the sequential ordering of information necessary for moving college students along a hierarchical decision-making continuum from awareness to support to organ donor registration.

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Objective: A 2-year study funded by the United States Department of Health and Human Services, Health Resources and Services Administration was conducted to identify a conceptual model of how college students, particularly those in student organizations, can be the social media catalyst for viral communications designed to motivate others to learn about the need of organ donation and become organ donors. This study reports the qualitative findings. DESIGN AND DATA COLLECTION: Methods used included an advisory committee, key informant interviews, and focus groups.

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The prevalence of the metabolic syndrome with attendant morbid obesity continues to increase nationwide. A concomitant increase in non-alcoholic steatohepatitis (NASH) and associated end-stage liver disease requiring transplantation is expected to parallel this trend. Between January 1, 1997 and December 31, 2008, our center performed 813 solitary adult deceased-donor liver transplants.

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Background And Objectives: Expanded-criteria donor (ECD) kidneys are used to expand the number of deceased-donor kidney transplants, often for elderly recipients. This study sought to determine whether older recipients had significantly worse outcomes from receiving ECD kidneys and whether outcomes of ECD versus standard-criteria donor (SCD) kidneys differed in younger recipients.

Design, Setting, Participants, & Measurements: This is a single-center, retrospective review of all primary deceased-donor kidney transplantations performed between 2000 and 2005.

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Between 1 January 2002 and 31 December 2007, our center performed 1687 adult renal transplants. A retrospective analysis was performed to compare outcomes between patients receiving alemtuzumab (n = 632) and those receiving either basiliximab (n = 690) or thymoglobulin (n = 125). Patients receiving alemtuzumab were younger (49 vs.

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