UNIVERZITA KARLOVA V PRAZE FAKULTA TĚLESNÉ VÝCHOVY A SPORTU The effect of physical activity and nutrition interventions on physical fitness and quality of life during the first year after kidney transplantation Abstract of disertation Zpracovala: Mgr. Klára Švagrová Školitel: Prof. Ing. Václav Bunc, CSc. Školící pracoviště: Laboratoř sportovní motoriky Praha, 2012 ABSTRACT Kidney transplantation is the best known treatment of chronic kidney failure. However, it is often accompanied by a number of health complications. The transplantation itself positively affects both physical fitness and quality of life during the first year after the transplant surgery which are seriously diminished when compared to the healthy population. This improvement can be even enhanced by appropriate physical activity and nutrition interventions otherwise both the physical fitness and quality of life would start declining after the first post-transplant year again. The aim of this study was to confirm a positive effect of a long-term physical activity and nutrition interventions on health-related physical fitness and health-related quality of life in a representative sample of individuals in the first year after the kidney transplantation. At the same time it was fundamental to verify that the experimental trial can be...

Chronic kidney disease (CKD) patients have compromised health related quality of life (HRQOL) by several reasons. This study aimed to evaluate HRQOL on hemodialysis (HD) and peritoneal dialysis (PD) patients and to identify HRQOL associated factors. Methods: We conducted a transversal study with 215 patients on HD and 58 on PD between July and September 2013, in Sergipe, Brazil. HRQOL was assessed using the Kidney Disease Quality of Life Short Form Instrument- 1.3 (KDQOL-SF), consisting of two cores: specific (KDCS) and generic (RAND-36). Additionally demographic and clinical variables directly related to CKD, factors such as mood, sleep disorders and sexual dysfunction were evaluated through specific instruments. Results: Patients had a mean age of 51 years (SD ± 15.4), mostly men (62%), with low educational (72%) and economic (95%) levels. There was no difference related to HRQOL among dialysis modalities, only PD patients felt more stimulated by caring staff than that on HD (p<0.01). The prevalence of depressive (29%) and anxiety (30%) symptoms, poor quality of sleep (56%), excessive daytime sleepiness (43%) and male (48%) and female (76%) sexual dysfunction were high. Multiple linear regression showed that depressive (R= -0.39 p<0.01, R= -0.48 p<0.01) and anxiety (R = -0.41 p <0.01, R = -0.27 p <0.01) symptoms were independently associated with KDCS and RAND-36. Confirmatory factorial analysis models confirmed the association of mood disorders with low HRQOL. High prevalence of anxiety (30%) and depressive symptoms (29%) were revealed. Conclusion: Patients on HD and PD showed no differences in HRQOL. Mood disorders are independently associated with low HRQOL, with high prevalence of anxiety and depressive symptoms in dialysis patients. / Portadores de doença renal crônica (DRC) possuem comprometimento da qualidade de vida relacionada à saúde (QVRS) por diversas razões. Este estudo objetivou avaliar QVRS de pacientes em hemodiálise (HD) e diálise peritoneal (DP) e identificar fatores a ela associados. Casuística e Método: Estudo transversal realizado entre julho e setembro de 2013 com 215 pacientes em HD e 58 em DP, em Sergipe, Brasil. Avaliou-se a QVRS através do questionário Kidney Disease Quality of Life Instrument- Short Form 1.3 (KDQOL-SF), composto por dois núcleos: específico (KDCS) e genérico (RAND-36). Além de variáveis demográficas e clínicas diretamente relacionadas a DRC, foram avaliados fatores como distúrbios de humor, sono e disfunções sexuais através de instrumentos específicos. Resultados: Os pacientes possuíam em média 51 anos (desvio-padrão±15,4), eram na maioria homens (62%), com níveis educacional (72%) e econômico (95%) baixos. Não se evidenciaram diferenças relacionadas à QVRS entre as modalidades dialíticas, apenas pacientes em DP se sentiram mais estimulados pela equipe cuidadora que os em HD (p<0,01). As prevalências de sintomas depressivos (29%), sintomas ansiosos (30%), baixa qualidade de sono (56%), sonolência diurna excessiva (43%) e disfunções sexuais masculina (48%) e feminina (76%) foram altas. Análise por regressão linear múltipla mostrou que sintomas depressivos (R= -0,39 p<0,01; R= -0,48 p<0,01) e ansiosos (R= -0,41 p<0,01; R= -0,27 p<0,01) foram fatores independentemente associados aos núcleos KDCS e RAND-36. Modelos de análise fatorial corroboraram a associação dos distúrbios de humor com baixa QVRS. Evidenciou-se alta prevalência de sintomas ansiosos (30%) e depressivos (29%). Conclusão: Pacientes em HD e DP não apresentaram diferenças na percepção de QVRS. Os distúrbios de humor foram fatores independentemente associados à baixa QVRS, com alta prevalência de sintomas ansiosos e depressivos em pacientes em diálise.

La Polykystose Rénale Autosomique Dominante (PKRAD) est une des pathologies héréditaires les plus fréquentes et affecte environ un individu sur 1000. Elle se caractérise par une importante variabilité clinique, notamment dans l’âge de survenue de l’insuffisance rénale terminale. Deux gènes sont en cause : le gène PKD1 situé sur le chromosome 16 (85% des cas) et le gène PKD2 situé sur le chromosome 4 (15% des cas). Les progrès majeurs dans la compréhension des mécanismes moléculaires impliqués ont permis le développement de stratégies thérapeutiques spécifiques, et de nouvelles questions surgissent : quels patients traiter ? Quand débuter les traitements ? La cohorte Genkyst, qui vise à inclure tous les patients suivis pour PKRAD dans la région Grand Ouest, nous a d’abord permis de décrire la variabilité génétique rencontrée dans la PKRAD. Nous avons ensuite démontré l’existence de fortes corrélations génotype-phénotype, en rapportant l’influence sur l’âge de survenue de l’insuffisance rénale terminale non seulement du gène en cause, mais aussi du type de mutation pour le gène PKD1. Enfin, l’analyse des données cliniques et génétiques de 1341 patients nous a permis de développer un algorithme pronostique, baptisé le PROPKD score, permettant de stratifier le risque de progression vers l’insuffisance rénale terminale. Nous espérons que ces travaux participeront à l’individualisation de la prise en charge des patients atteints de PKRAD, ce qui est un enjeu crucial à l’arrivée des nouveaux traitements. / Autosomal Dominant Polycystic Kidney Disease (ADPKD) is one of the most frequent Mendelian inherited disorders, and affects approximately one individual out of 1000. ADPKD is marked by a high clinical variability, especially regarding age at end-stage renal disease (ESRD). Two genes are identified: PKD1 located on the chromosome 16 (85% of the pedigrees) and PKD2 located on the chromosome 4 (15% of the pedigrees). Substantial progress in understanding the cellular mechanisms underlying ADPKD has triggered the development of targeted therapies, and new questions are arising: which patients should be treated? When should we begin these treatments? Thanks to Genkyst cohort, which aims to include all consenting ADPKD patients from the western part of France, we first described the important allelic variability encountered in ADPKD. Secondly, we demonstrated the important influence of not only the gene involved, but also of PKD1 mutation type. Last, the analysis of clinical and genetic characteristics of 1341 patients from the Genkyst cohort allowed us to develop a prognostic algorithm, named the PROPKD score for predicting renal outcome in ADPKD. Our hope is that these works will participate in the development of individualized medicine in ADPKD, which is crucial in the context of the emerging targeted therapies.

Afin de mieux connaitre puis d'optimiser les trajectoires suivies par les patients arrivés au stade terminal de leur insuffisance rénale chronique, il a été nécessaire de mettre au point des outils permettant de modéliser ces trajectoires complexes. Les différentes modalités de traitement n'ont pas été comparées une à une mais une approche globale a été privilégiée tenant compte d'une vision intégrée où les modalités de traitement sont considérées comme complémentaires et non concurrentielles. Ce travail de modélisation a utilisé des modèles à compartiments avec prise en compte de risque concurrents et un modèle de mélange pour données de survie avec fraction non à risque. Les paramètres des modèles ont été estimés à partir des données du registre du Réseau Épidémiologie et Information en Néphrologie (REIN). L'outil de prédiction développé a également pu être alimenté par les données de remboursement de l'assurance maladie (SNIIRAM) sur l'année 2009. Cette première version de l'outil a permis d'évaluer les conséquences en termes d'espérance de vie restreinte à 15 ans et de coût moyen par mois de différentes stratégies simulées de prise en charge des patients en IRCT dans le cadre d'une analyse médico-économique, en partenariat avec la Haute Autorité de Santé. L'objectif final de ce travail sera de proposer des outils d'aide à la décision reposant sur des stratégies de prise en charge les mieux adaptées aux besoins des patients. A terme, les outils développés lors de ce travail pourraient également servir de base à une plateforme de simulation afin d'accompagner les décideurs publics lors de la réflexion sur les schémas d'organisation sanitaire / In order to better understand and then optimize the trajectories followed by end-stage renal disease patients, it was necessary to develop tools to model these complex trajectories. The different treatment modalities were not compared but a comprehensive approach was preferred taking into account an integrated vision where treatment modalities are considered complementary and non-competitive. We used compartments models which took into account competitive risk and a mixture model for survival with fraction not at risk. The model parameters were estimated from the data from the Renal Epidemiology and Information Network registry. Reimbursement data from the national health insurance (SNIIRAM) were also used. The prediction tool developed was used to evaluate the consequences in terms of expected 15- years restricted lifetime and average cost per month for different strategies in a medicoeconomic analysis, in partnership with the Haute Autorité de Santé. The final aim of this work is to offer decision support tools based on strategies best adapted to patients’ needs. The tools developed in this work could also serve as a basis for a simulation platform to accompany public decision-makers in their reflection on health organization

La prise en compte de la notion de la qualité de vie (QDV) du patient est révélatrice d'un changement profond dans la pratique médicale, notamment en néphrologie, pour les patients atteints d'insuffisance rénale chronique terminale (IRCT). Compte tenu de la prévalence, de l'incidence et de la mortalité de cette maladie en France, il paraissait important de pouvoir mesurer de façon pertinente et cohérente la QDV des patients atteints d'IRCT. La QDV liée à la santé constitue un indicateur pour apprécier les conséquences de cette maladie. En 2007, après une étude de revue de la littérature concernant les outils de mesure de la QDV des IRCT, il a été mis en évidence un manque de questionnaires spécifiques validés en langue française. Il existait donc un besoin réel d'évaluer la QDV de ces patients, et plus particulièrement celle des patients porteurs d'un greffon rénal fonctionnel.En 2008, une échelle spécifique a donc été développée et validée pour mesurer la QDV des patients greffés rénaux : le ReTransQol (ou RTQ). Après 5 années d'utilisation du RTQ dans diverses études nationales, cet outil a été amélioré et une nouvelle version a vu le jour: le RTQ V2. Après de nombreuses analyses, cette échelle présente actuellement de bonnes propriétés psychométriques et est validée auprès de diverses populations d'études. Le RTQ V2 sera d'ailleurs utilisé dans des études internationales (Brésil, Allemagne, Canada...), et une validation transculturelle est prévue. Le RTQ V2 est donc un outil de mesure spécifique de la QDV adapté pour une utilisation en routine auprès des patients porteurs d'un greffon rénal fonctionnel. / The inclusion of the concept of quality of life (QOL) is indicative of a profound change in the way of practicing medicine, particularly in the field of nephrology for patients with end stage renal disease (ESRD). Given the prevalence, incidence and mortality of this disease in France, it seemed important, even essential, to measure properly, appropriately and consistently, the QOL of patients with ESRD. Health related quality of life (HRQOL) is therefore an important indicator of results to evaluate the consequences of this disease, the effect of medical procedures, treatment effects, or the impact of health policies.In 2007, after a study of literature concerning the assessment of QOL's scales of patients with ESRD, it was revealed a certain lack, quantitative or qualitative, of specific questionnaires for measuring QOL for ESRD patients validated in French, especially for patients with a functioning kidney transplant.In 2008, a specific scale has been developed and validated to measure the QOL of renal transplant recipients: the ReTransQol (Renal Transplant Quality of life questionnaire). After 5 years of use and application of ReTransQol in different national studies, this tool has been improved and a new version was created: the ReTransQol V2 (or RTQ V2). After lots of analysis, this scale has currently good psychometric properties and has been validated in various populations. The RTQ V2 is also used in international studies (Brazil, Germany, Canada ...), and a cross-cultural validation of the scale is planned.The ReTransQol V2 is a specific tool to assess the HRQOL and is suitable for a routine use among renal transplant recipients.

Made available in DSpace on 2016-05-02T13:54:42Z (GMT). No. of bitstreams: 1 Dissertacao completa Fabio de Souza Terra.pdf: 1253899 bytes, checksum: 97e2a9b443864eee5e5db5722e7f2770 (MD5) Previous issue date: 2007-03-23 / Coordenacao de Aperfeicoamento de Pessoal de Nïvel Superior / This study evaluated the QL of end-stage renal patients submitted to hemodialysis and their adhesion to daily pharmacologic treatment knowing their life expectancy and the main complications presented during HD It is an epidemiologic descriptive tranversal and quantitative research carried out at a hemodialysis clinic of a university hospital of Alfenas State of Minas Gerais Brazil with the participation of all the 30 dialysis patients in the period of the collection of data A questionnaire was used for the obtainment of data about the participants' characterization adhesion to pharmacologic treatment and life expectation QL was analyzed through the instrument WHOQOL-bref of the World Health Organization The data were tabulated in the statistical program SPSS version 10.0 and analyzed by means of the medium score with application of the following tests Qui-square Coefficient of Correlation of Pearson Test of Wilcoxon Student s t test Cronbach s Alpha Coefficient The results showed that most of the interviewees referred that HD interfered in their professional activities and in leisure and recreation but 53.33% were calm during the permanence in the clinic The most frequent complications were the arterial hypotension vomit and dizziness All the patients take medicines mainly antihypertensives With regard to knowledge of the indication of the medicines 40% of the dialysis patients know all the drugs that they take Thirty patients informed to take the medicines daily but 16.66% have already interrupted the treatment on their own account due to adverse reactions The average scores of QL were General QL 3.26 physical domain 3.10 psychological domain 3.58 social relationships 4.19 and environment 3.54 Therefore the participants of the study classified their QL as being above "neither bad, nor good" while the domain social relationships was evaluated between "good" and "very good" The variables did not interfere in the patients' QL in other words they did not present any correlation with the domains of WHOQOL-bref Through the reproducibility it was verified that the interviewees' QL was stable between the "test" and the "retest" having satisfactory reliability while the internal consistency of WHOQOL-bref was acceptable for the facets and domains indicating a homogeneity in the appraised items The main expectation of the patients' life is receiving a renal transplantation 82.35% are in the waiting list and 47.06% encountered the refusal of their relatives in donating the organ It can be verified that the instrument WHOQOL-bref showed to be effective to evaluate QL of end-stage renal patients submitted to HD thus being a reliable instrument for such a measure Finally dialysis patients will have a better QL when they are informed about their disease and treatment when cared for in a solid supportive system and rehabilitation in order to make them capable to lead an active productive and self-sufficient life / Este estudo avaliou a QV dos nefropatas crônicos submetidos à hemodiálise e sua adesão ao tratamento farmacológico de uso diário conhecer a expectativa de vida dessa população com relação ao futuro e as principais complicações apresentadas durante a HD Trata-se de uma pesquisa epidemiológica descritiva transversal e quantitativa realizada em uma clínica de hemodiálise de um hospital universitário de Alfenas-MG com todos os 30 pacientes submetidos à HD no período da coleta de dados Utilizou-se para a coleta um questionário com dados sobre a caracterização dos participantes adesão ao tratamento farmacológico e expectativa de vida e a QV foi analisada por meio do instrumento WHOQOL-bref da Organização Mundial da Saúde Os dados foram tabulados no programa estatístico SPSS versão 10.0 e analisados por meio do escore médio com aplicação dos seguintes testes Qui-quadrado Coeficiente de Correlação de Pearson Teste de Wilcoxon Teste t de Student Coeficiente Alfa de Cronbach Os resultados mostraram que a maioria dos entrevistados referiram que a HD interferiu em suas atividades profissionais e de lazer e recreação mas 53,33% se sentem tranqüilos durante a permanência na clínica As complicações de maior ocorrência foram a hipotensão arterial vômito e tontura Todos os pacientes fazem uso de medicamentos sendo os antihipertensivos os mais utilizados Quanto ao conhecimento da indicação dos medicamentos 40% dos renais crônicos conhecem todos os fármacos que usam Os 30 pacientes estudados informaram tomar os medicamentos diariamente mas 16,66% já interromperam o uso por conta própria devido a reações adversas Os escores médios referentes à QV foram QV geral 3,26 domínio físico 3,10 psicológico 3,58 relações sociais 4,19 e meio ambiente 3,54 Assim os participantes do estudo classificaram a QV como sendo acima do nem ruim nem boa enquanto o domínio relações sociais foi avaliado entre boa e muito boa As variáveis estudadas não interferiram na QV dos pacientes ou seja elas não apresentaram correlação com os domínios do WHOQOL-bref Por meio da reprodutibilidade verificou-se que a QV dos entrevistados foi estável entre o teste e o reteste tendo uma confiabilidade satisfatória enquanto a consistência interna do WHOQOL-bref foi aceitável para as facetas e domínios indicando uma homogeneidade nos itens avaliados A principal expectativa de vida dos pacientes é a realização do transplante renal sendo que 82,35% estão na lista de espera e 47,06% se depararam com a recusa dos familiares em doar o órgão Pode-se verificar que o instrumento WHOQOL-bref mostrou-se eficaz para avaliar a QV de renais crônicos submetidos à HD sendo confiável para essa medida Por fim o paciente submetido à HD terá uma melhor QV quando ele for informado acerca de sua doença e tratamento quando existir um sólido sistema de suporte e reabilitação e ser capaz de levar uma vida ativa produtiva e autosuficiente

Metabolic syndrome (MS) and end-stage renal disease (ESRD) represent two clinical- pathologic states with increased risk of atherosclerotic cardiovascular complications with considerable impact on the quality of life of the patients. The knowledge about the changes in distribution of individual lipoprotein subfractions could countribute to the estimation of risk of atherosclerosis development. The studies presented in this thesis aimed at analyses of subfractions of LDL and HDL in the abovementioned pathologic states; moreover, we tried to elucidate the associations of changes in lipoprotein subfractions with clinical as well as biochemical alterations. The Study I was a placebo controlled study observing the effect of polyunsaturated fatty acids of n-3 family (PUFA n-3) administration to patients with MS who were divided to statin-treated ones (36 patients), and those without statin therapy (24 probands). The Study II comprised of 57 patients with ESRD on high volume haemodiafiltration (HV-HDF). In this Study, the parameters after 5-year follow-up were compared with baseline characteristics. Also, we included comparisons with the control group of 50 age and sex matched patients without the signs of ESRD. In Study I, we observed lowering of triacylglycerol and cholesterol content in VLDL...

UNIVERZITA KARLOVA V PRAZE FAKULTA TĚLESNÉ VÝCHOVY A SPORTU The effect of physical activity and nutrition interventions on physical fitness and quality of life during the first year after kidney transplantation Abstract of disertation Zpracovala: Mgr. Klára Švagrová Školitel: Prof. Ing. Václav Bunc, CSc. Školící pracoviště: Laboratoř sportovní motoriky Praha, 2012 ABSTRACT Kidney transplantation is the best known treatment of chronic kidney failure. However, it is often accompanied by a number of health complications. The transplantation itself positively affects both physical fitness and quality of life during the first year after the transplant surgery which are seriously diminished when compared to the healthy population. This improvement can be even enhanced by appropriate physical activity and nutrition interventions otherwise both the physical fitness and quality of life would start declining after the first post-transplant year again. The aim of this study was to confirm a positive effect of a long-term physical activity and nutrition interventions on health-related physical fitness and health-related quality of life in a representative sample of individuals in the first year after the kidney transplantation. At the same time it was fundamental to verify that the experimental trial can be...

L’augmentation de la fréquence hebdomadaire des séances d’Hémodialyse (HD) serait la technique qui se rapprocherait le plus du rôle physiologique des reins. L’Hémodialyse quotidienne (HDQ) a été développée afin d’améliorer la qualité de vie des patients ainsi que l’épuration sanguine. Néanmoins, son association avec la survie reste controversée et son lien avec l’accès à la greffe rénale n’avait jusqu’alors jamais été étudié. Par ailleurs, les connaissances en termes de pratiques en France étaient jusqu’à aujourd’hui très faibles. Dans ce contexte, cette thèse vise à caractériser les patients français en HDQ et leurs trajectoires en plus d’analyser l’association entre l’HDQ et la transplantation rénale et la survie des patients. Une étude épidémiologique a été menée à partir du Réseau en Epidémiologie et Information en Néphrologie (REIN) où ont été inclus tous les patients âgés ≥18 ans et qui ont démarré une séance d’HDQ entre 2003 et 2012 en France. L’extraction d’un certain nombre de données biocliniques de REIN a permis de montrer que les patients français en HDQ étaient caractérisés pour présenter des profils très hétérogènes. En effet, en fonction de l’âge médian (64 ans) deux sous-groupes de patients ont pu être comparés : les âgés (moyenne d’âge : 76,6 ± 6,9 ans) en mauvaises conditions médicales et qui décédaient rapidement ; les jeunes (moyenne d’âge : 47,2 ± 12 ans) qui étaient en HDQ avant d’accéder à la greffe. Par ailleurs, en fonction des trajectoires initiales, deux sous-groupes ont également pu être comparés : patients démarrant directement par HDQ (dHDQ, n=257) ; patients démarrant par un autre traitement (cHDQ, n=496). Ensuite, cette thèse a permis de montrer qu’en France, après l’inscription sur la liste, les patients en HDQ avaient une moindre probabilité d’accéder à la greffe que les patients en HD 3x/semaine (SHR=0,74 ; IC 95%: 0,58-0,95). Par ailleurs, après ajustement sur l’âge, le sexe et les comorbidités, l’HDQ était associée avec un sur-risque de décès (HR=1,58 ; IC 95%: 1,4-1,8) en comparaison avec l’HD 3x/semaine. Ce travail de thèse a permis d’élucider nos connaissances en termes de pratiques associées avec l’HDQ bien que les raisons pour lesquelles les patients démarrent une HDQ ne sont pas connues. Nous émettons l’hypothèse que les indications pour l’HDQ en France sont probablement différentes de celles appliquées dans d’autres pays, ceci pourrait expliquer nos résultats en termes de mortalité. / An increase frequency of weekly sessions of Hemodialysis (HD) should be more physiological than a conventional HD 3x/week. Daily Hemodialysis (DHD) was developed in order to enhance patients’ quality of life in addition to blood purification. Nevertheless, its effect on survival remains controversial and the association between DHD and the access to renal transplantation has never been evaluated. Moreover, knowledges about DHD practices in France were until today very poor. In this context, the aims of this thesis was firstly, to describe profiles of French patients on DHD and their initial trajectories; secondly to analyze the association between DHD and renal transplantation, then survival in comparison with conventional HD 3x/week. An epidemiologic study has been conducted based on Renal Epidemiology and Information in Nephrology (REIN) registry. Were included all patients aged ≥18 years who initiated a DHD between 2003 and 2012 in France. Bio-clinical data analyses showed that French patients were characterized to present various profiles. Indeed, according to the median age (64 years), two sub-groups were distinguished and compared: old (mean age: 76.6 ± 6.9 years) in bad medical conditions who died rapidly; young (mean age: 47.2 ± 12 years) waiting for renal transplantation. Moreover, according to the initial trajectories, two sub-groups were also constructed: patients starting directly with DHD (dDHD, n=257); patients starting with another dialysis before switching for DHD (cDHD, n=496). Then, this thesis allowed showing that in France and after being waitlisting, patients on DHD had lower probability of being renal transplanted (SHR=0.74; 95%CI: 0.58-0.95). Then, after the adjustment on sex, age and comorbidities, DHD was associated with a higher risk of death compared to conventional HD 3sessions/week. Reasons why a patient started a DHD are unknown, but this work allows us to enhance our knowledges in terms of medical practices associated with DHD. We hypothesized that DHD indications in France might be different from other countries which could explain our results in terms of mortality.

Un score de risque polygénique (SRP) a été mis au point pour permettre une prédiction précoce du risque de néphropathie chez les patients atteints de diabète de type-2 (DT2). Le but de cette étude était d’évaluer l’impact économique de l’implantation du SRP pour la prévention de la néphropathie chez les patients atteints du DT2, par rapport aux méthodes de dépistage habituelles au Canada. Tout d’abord, une revue systématique de la littérature a été effectuée pour examiner les évaluations économiques publiées sur le DT2 et la néphropathie. Les principales techniques de modélisation observées dans cette revue ont été utilisées pour réaliser une analyse coût-utilité à l’aide d’un modèle de Markov. Les états de santé du modèle étaient la pré-insuffisance rénale (pré-IR), l’IR et le décès. Les paramètres d’efficacité du modèle ont été basés sur les résultats de l’étude ADVANCE. Les analyses ont été menées selon une perspective du système de soins et une perspective sociétale. Sur un horizon temporel de la vie entière du patient, le SRP était une stratégie dominante par rapport aux méthodes de dépistage habituelles, selon les deux perspectives choisies. En effet, le SRP était moins coûteux et plus efficace en termes d’années de vie ajustée en fonction de la qualité, par rapport aux techniques de dépistage usuelles. Les analyses de sensibilité déterministe et probabiliste ont démontré que les résultats demeurent dominants dans la majorité des simulations. Cette évaluation économique démontre que l’adoption du SRP permettrait de réduire les coûts et d’améliorer la qualité de vie des patients. / The current screening method for diabetic nephropathy (DN) is based upon the detection of urinary albumin and the decline of estimated glomerular filtration rate, which occurs relatively late in the course of the disease. A polygenic risk score (PRS) was developed for early prediction of the risk for type 2 diabetes (T2D) patients who experience DN. The aim of this study was to assess the economic impact of the implementation of the PRS for the prevention of DN in T2D patients, compared to usual screening methods in Canada. First, a systematic literature review was conducted to examine all published economic evaluations in T2D and DN. The main trends in modelling technics obtained from this review were used to conduct a cost-utility analysis using a Markov model. Health states include pre-end-stage renal disease (Pre-ESRD), ESRD and death. Model efficacy parameters were based on prediction of outcome data by polygenic-risk testing of the ADVANCE trial. Analyses were conducted from Canadian healthcare and societal perspectives. Over a lifetime horizon, the PRS was a dominant strategy compared to usual screening methods, from both a healthcare system and societal perspective. In other words, the PRS was less expensive and more effective in terms of quality-adjusted life years compared to usual screening technics. Deterministic and probabilistic sensitivity analyses showed that results remained dominant in the majority of simulations. This economic evaluation demonstrates that the adoption of the PRS would not only be cost saving but would also help prevent ESRD and improve patients’ quality of life.