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Characteristics and six-month outcomes in a cohort of 8288 diabetic and non-diabetic patients with previous history of acute coronary syndrome or stroke: the French PREVENIR 3 survey - 17/02/08

Doi : DM-11-2006-32-5-1262-3636-101019-200519827 

B Bouhanick [1],

JP Cambou [2],

J Ferrières [2],

E Amelineau [3],

L Guize [4]

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Objectifs

Évaluer le pronostic cardiovasculaire chez des patients diabétiques (n = 1845) et non diabétiques (n = 6443) en prévention secondaire

Méthodes

Recrutement prospectif de patients ayant déjà fait un IDM, un AVC ischémique ou un syndrome coronarien aigu dans les 5 ans précédents, suivis 6 mois (suivi moyen: 4,8 mois) avec recueil mensuel des hospitalisations et des décès pour ces mêmes événements.

Résultats

306 patients (9,5 / 100 patient-années, 95 % IC 8,5-10,6) sont à nouveau victimes d'au moins un événement. L'incidence des récidives cardiovasculaires est plus élevée chez les patients diabétiques que chez ceux non diabétiques: 12,6 (10,0 à 15,2) vs; 8,6/100 patient-années (7,5 à 9,8). Les patients diabétiques ont un risque accru de récidive cardiovasculaire par rapport à ceux non diabétiques (RR: 1,34; P = 0,025) après ajustement sur les facteurs de risque cardiovasculaires classiques. 93% des patients déjà victimes d'une atteinte coronaire font une récidive coronaire indépendamment du statut diabétique. Lorsque le premier événement est un AVC, 71 % des patients diabétiques font à nouveau un AVC contre 47 % des patients non diabétiques.

Conclusion

Le risque de décès ou de récidive cardiovasculaire est plus élevé chez les patients français diabétiques que chez ceux sans diabète lorsqu'ils sont en prévention secondaire, indépendamment des autres facteurs de risque cardiovasculaires. Les territoires de récidives semblent corrélés au diagnostic initial, sans relation avec le statut diabète, même si les patients diabétiques déjà victimes d'un AVC ischémique ont tendance à plus fréquemment faire à nouveau un AVC que ceux sans diabète.

Characteristics and six-month outcomes in a cohort of 8288 diabetic and non-diabetic patients with previous history of acute coronary syndrome or stroke: the French PREVENIR 3 survey

Aims

To evaluate the cardiovascular prognosis of 1845 Diabetic Patients (DP) and 6443 Non-Diabetic Patients (NDP) in secondary prevention.

Methods

Patients were recruited prospectively if they had had a previous history of ischemic stroke or acute coronary syndrome (ACS) i.e. Myocardial Infarction (MI) or Unstable Angina (UA) within a period of five years preceding inclusion. For each patient, the number of hospitalizations and vital status were recorded each month over a 6-month period (mean follow-up: 4.8 months).

Results

306 patients (9.5/100 – person years; 95% CI, 8.5 to 10.6) had undergone at least one subsequent event (hospitalization for ACS, ischemic stroke, or cardiovascular death). A majority of these events were non-fatal ACS (n=248). The cumulative incidence rate of subsequent events was higher in DP: 12.6/100- person years (10.0 to 15.2) than in NDP: 8.6/100 – person years (7.5 to 9.8). DP were significantly at higher risk of subsequent cardiovascular events (OR: 1.34; P=0.025) after adjustment for confounding factors. 93% of coronary DP and NDP underwent a recurrent event affecting the same location. When the index episode was a stroke, 71% of DP had a subsequent stroke vs. 47% of NDP.

Conclusion

in secondary prevention, the risk of mortality and subsequent vascular events is independently higher in French DP than in NDP. The locations affected by each type of subsequent cardiovascular event seemed correlated to the baseline diagnosis, whatever the diabetic status, even when the frequency of subsequent strokes increased (not significantly) in DP when compared to NDP.


Mots clés : Diabète sucré , AVC ischémique , Syndrome coronarien aigu , Prévention secondaire

Keywords: Diabetes mellitus , Acute coronary syndrome , Ischemic stroke , Secondary prevention


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Vol 32 - N° 5

P. 460-466 - novembre 2006 Ritorno al numero
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