Strategies for Multivessel Revascularization in Patients with Diabetes

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Transcription de la présentation:

Strategies for Multivessel Revascularization in Patients with Diabetes FREEDOM Strategies for Multivessel Revascularization in Patients with Diabetes N Engl J Med 2012 DOI : 10.1056/NEJMoa1211585 Farkouh ME et al. AHA 2012

FREEDOM Méthodologie Objectif Etude Inclusion Comparer l’angioplastie transluminale (ATL) coronaire et le pontage aortocoronarien (PAC) chez les diabétiques coronariens pluritronculaires : sténoses ≥ 70% sur ≥ 2 troncs épicardiques, symptomatiques pour angor et/ou responsables d’une ischémie myocardique. Etude Étude prospective, randomisée, ouverte, internationale, multicentrique (140 sites) Inclusion Patients DT2 / DT1 avec lésions coronaires pluritronculaires. 32966 patients évalués, 3309 incluables (10%), 1409 refus du protocole, 1900 inclus (2005-2010). FREEDOM Farkouh ME et al. AHA 2012

ATL coronaire (Stent actif) DT2-DT1 pluritronculaires Angor stable 69% Schéma de l’étude ATL coronaire (Stent actif) (n= 953) Critère principal de jugement Mortalité totale, IDM non mortel, AVC non mortel DT2-DT1 pluritronculaires Angor stable 69% Angor instable 31% (n = 1900) FREEDOM R PAC (n = 947) Suivi : 5 an ATL = angioplastie transluminale PAC = pontage aortocoronarien Farkouh ME et al. AHA 2012

FREEDOM Patients : Caractéristiques* Âge moyen (ans) 63 Hommes 71% IMC (kg/m2) 29 Ancienneté DT2-DT1 (ans) 10 HbA1c 7,8% Tabac 15% Antécédents IDM 25% Syndrome coronaire aigu récent 30% Antécédents AVC 3% Tritronculaire 83% FEVG 66% EuroScore (≥ 5 = surmortalité) 2,7 SYNTAX score (≥ 33 = lésions étendues) 26 100 FREEDOM Évènements (%) jours * Identiques dans les deux 2 groupes Farkouh ME et al. AHA 2012

FREEDOM Patients : Traitements Inclusion 5 ans n 1900 410 Aspirine ATL PAC 91% 90% 95% 93% Thienopyridine 28% 22% 42% 16% Statine 82% 83% 89% ß-bloquant 76% 75% 80% 79% IEC 64% ARA II 37% 32% 100 FREEDOM Évènements (%) jours Farkouh ME et al. AHA 2012

FREEDOM Résultats Critère principal* Farkouh ME et al. AHA 2012 * Mortalité totale, IDM non mortel, AVC non mortel

FREEDOM Résultats Evènements ATL PAC p Mortalité Totale 16,3% 10,9% 0,049 IDM 13,9% 6% < 0,001 Mortalité CV 6,8% 0,12 AVC 2,4% 5,2% 0,03 Revascularisation myocardique 13% 5% < 0,0001 Bénéfice PAC FREEDOM % patients Farkouh ME et al. AHA 2012

Résultats AVC non mortel FREEDOM Farkouh ME et al. AHA 2012

Résultats Mortalité totale FREEDOM Farkouh ME et al. AHA 2012

Résultats IDM non mortel FREEDOM Farkouh ME et al. AHA 2012

Résultats Revascularisation FREEDOM Farkouh ME et al. AHA 2012

Résultats Evts CV majeurs FREEDOM Farkouh ME et al. AHA 2012

FREEDOM Résultats Sous-groupes* Farkouh ME et al. AHA 2012 * Analyse des Sous-Groupes. Risque Relatif pour Mortalité/AVC/IDM

Conclusion Le PAC améliore significativement le pronostic des diabétiques coronariens pluritronculaires avec FEVG conservée par comparaison avec l’ATL (stent actif) Ce bénéfice repose sur la diminution des IDM et de la mortalité totale, et s’observe au prix d’un surcroît significatif d’AVC. Étude au suivi relativement court (7 ans, minimum de 2 ans, médian 3,8 ans). Un suivi plus long devrait permettre une meilleure compréhension du pronostic de ces patients. FREEDOM Farkouh ME et al. AHA 2012