Impact of Transplantation Timing on Renal Graft Survival Outcomes and Perioperative Complications

Nighttime organ transplantation aims to decrease cold ischemia duration, yet conflicting data exists on its impact on graft function and perioperative complications. This multicenter TRANSPLANT’AFUF study including 2,854 patients, transplanted between 1 January 2011, and 31 December 2022, investigated nighttime kidney transplantation’s impact (8:00 p.m.–8:00 a.m.) versus daytime (8:00 a.m.–8:00 p.m.) on surgical complications and graft survival. Overall, 2043 patients (71.6%) underwent daytime graft, while 811 (28.4%) underwent nighttime graft. No impact was observed of timing of graft surgery on graft survival with a median survival of 98 months and 132 months for daytime and nightime grafting, respectively (p = 0.1749). Moreover, no impact was observed on early surgical complications (Clavien I-II = 20.95% for DG and 20.10% for NG; Clavien III-IV-V = 15.42% for DG and 12.94% for NG; p = 0.0889) and late complications (>30 days) (Clavien I-II = 6.80% for DG and 5.67% for NG; Clavien III-IV-V = 12.78% for DG and 12.82% for NG; p = 0.2444). Noteworthy, we found a significant increase in Maastricht 3 donors’ rates in nighttime transplantation (5.53% DG vs. 21.45% NG; p < 0.0001). In conclusion, nighttime kidney transplantation did not impact early/late surgical complications nor graft survival

Influence of head morphology and natural postures on sound localization cues in crocodilians

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influence of the poling process on the pyroelectric coefficient of a 70/30 P(VDF-TrFE) thin film

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P(VDF-TrFE) copolymer thin films for pyroelectric applications

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Planification de la séquence « Éviter-Réduire-Compenser » à l’échelle du paysage : quel apport de la modélisation des réseaux écologiques à la mise en œuvre des sites naturels de compensation ?

National audienceIn recent years, several teams of researchers have developed methodological frameworks and specific modeling tools to take into account the dynamic dimension of biodiversity in environmental assessments. Today, these developing approaches are still little used in France. However, as the authors of this paper illustrate, recent work has shown their interest and relevance in all phases of projects, from preliminary reflections to design, both at the scale of operations and that of territorial planning.Plusieurs équipes de chercheurs ont développé ces dernières années des cadres méthodologiques et des outils de modélisation spécifiques permettant de prendre en compte la dimension dynamique de la biodiversité dans les évaluations environnementales. Aujourd’hui, ces approches en développement sont encore peu utilisées en France. Cependant, comme l’illustrent les auteurs de cet article, de récents travaux ont montré leur intérêt et leur pertinence à toutes les phases des projets, des réflexions préliminaires à la conception, tant à l’échelle des opérations qu'à celle de la planification territoriale