Dynamic prediction of renal survival among deeply phenotyped kidney transplant recipients using artificial intelligence: an observational, international, multicohort study
ESOT President Vassilios Papalois explained, “The award not only rewards the quality of science, but also the quality of teamwork within a transplant group.”
“We are really honoured and proud to receive this award”, explained Alexandre Loupy. “As a team, we are all looking into the same direction in trying to improve patient outcomes”.
This is the third time the Transplant Research Group has won this prestigious award, who will be awarded a €5,000 prize.
The XV. Banff conference for allograft pathology was held in conjunction with the annual meeting of the American Society for Histocompatibility and Immunogenetics in Pittsburgh, PA (USA) and focused on refining recent updates to the classification, advances from the Banff working groups, and standardization of molecular diagnostics.
Statistical performance of 16 posttransplant risk scores in a contemporary cohort of heart transplant recipients
Accurate risk stratification of early heart transplant failure is required to avoid futile transplants and rationalize donor selection. We aimed to evaluate the statistical performance of existing risk scores on a contemporary cohort of heart transplant recipients.
After an exhaustive search, we identified 16 relevant risk scores. From the UNOS database, we selected all first noncombined adult heart transplants performed between 2014 and 2017 for validation. The primary endpoint was death or retransplant during the first year posttransplant.
For all scores, we analyzed their association with outcomes, sensitivity, specificity, likelihood ratios, and discrimination (concordance index and overlap of individual scores). The cohort included 9396 patients. All scores were significantly associated with the primary outcome (P < .001 for all scores). Their likelihood ratios, both negative and positive, were poor. The discriminative performance of all scores was limited, with concordance index ranging from 0.544 to 0.646 (median 0.594) and an important overlap of individual scores between patients with or without the primary endpoint. Subgroup analyses revealed important variation in discrimination according to donor age, recipient age, and the type of assist device used at transplant.
Our findings raise concerns about the use of currently available scores in the clinical field.
A considerable decline in the number of organ transplants since the start of the COVID-19 pandemic in France and the US
Identification and characterization of trajectories of cardiac allograft vasculopathy after heart transplantation
One of the most common reasons for long-term graft failure and patient death is an accelerated form of coronary artery disease called cardiac allograft vasculopathy. It is a frequent complication that affects up to half of patients within 10 years following heart transplantation. Yet, until now, little has been known about the different evolutive profiles of cardiac allograft vasculopathy and their risk factors.
Prediction system for risk of allograft loss in patients receiving kidney transplants: international derivation and validation study
The members of the Paris Transplant Group are present at the SFT congress which will take place from December 3, 2019 in Bordeaux, France.
The team of the Paris Transplant Group has been awarded at the ESOT 2019 congress in Copenhagen for its many contribution in the field of transplantation.
The Prize is given to a single Institution having submitted at least 5 abstracts for the event and granted with the best score. The Paris Transplant Group is very pleased to won this European award twice in a row.
Check out the contribution submitted by the Group on the ESOT website: esotcongress.org.
Disparities in Acceptance of Deceased Donor Kidneys Between the United States and France and Estimated Effects of Increased US Acceptance
Using a new approach based on validated analytical methods and computer simulations, this work revealed that French transplant centres are much more likely to transplant kidneys from older donors than their American counterparts, and that this effectively increases the number of patients transplanted.
During the event, a specific symposium is held for the EU Train-ESOT that highlights the methodological and statistical risks clinical researchers can face in the field of transplantation. Carmen Lefaucheur, Olivier Aubert, Alexandre Loupy, Yassine Bouatou, Dany Anglicheau and Christophe Legendre are invited to speak during this event to present the future of patient care in transplantation.
Check the poster submitted by Marc Raynaud here.
You can follow the event through social media with the hashtag #ESOT2019 and @ParisTxGroup.
Archetype Analysis Identifies Distinct Profiles in Renal Transplant Recipients with Transplant Glomerulopathy Associated with Allograft Survival
New research conducted by the Paris Translational Research Center for Organ Transplantation team could help clinicians determine which patients will have a disease that usually occurs after a kidney transplant and which are at high risk of transplant failure. The results are published today in the prestigious Journal of the American Society of Nephrology (JASN).
Transplant glomerulopathy was first described and characterized 50 years ago. It is a disease associated with the loss of a kidney transplant and common after a transplant. It affects the functional units (i. e. glomeruli) of the transplanted kidney. There is currently no treatment for this heterogeneous disease.
This year, the BANFF Foundation for Allograft Pathology partners up with the American Society of Histocompatibility and Immunogenetics (ASHI) for a joint scientific meeting. Which will take place between the 23rd and the 27th of September in Pittsburgh, USA. Dr. Alexandre Loupy will be present there as part of the ASHI/BANFF Steering Committee.
Abstract submissions are now open for oral and poster presentations. The deadline for the submission is the 8th of April.
During the meeting, you will be able to meet more than 1 200 professionals in HLA and the transplant field. And discover all the latest updates in immunogenetics and transplant immunology.
The BANFF Foundation for Allograft Pathology is a non-profit foundation, established in 2013. BANFF aims to further the development of the international BANFF Classification of Allograft Pathology, as well as publicize it. They also aspire to ease collaborative research in order to improve the care of transplant patient.
ASHI was founded in 1974, it is a non-profit international organization of clinical and research professionals. ASHI aims to advance the science and application of histocompatibility and immunogenetics. They also want to provide a forum for the exchange of information among scientists.
Paris Transplant Group
Our global aim is to accelerate the translation of immunological and gene expression discoveries into the clinical field by filling the gap between basic science and applied biomedical researches.