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Angiographic predictors of outcome in myocardial infarction patients presenting with cardiogenic shock : a CULPRIT-SHOCK angiographic substudy

Colloquium "Rythme et conduction" (23 avril 2024)
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Bourses ACTION 2024 - Prix de Recherche JP Collet et Y Grosgogeat - PHRA 2024
M2, thèse de sciences, mobilité et soins infirmiers : deadline 15 mars - PHRA : deadline 30 mars

Colloquium - La cardiologie de l'exercice et du sport (11 janvier 2024)
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EuroIntervention 2021 Feb 5;16(15):e1237-e1244


Article disponible en consultant le site

Auteurs

Overtchouk P, Barthélémy O, Hauguel-Moreau M, Guedeney P, Rouanet S, Zeitouni M, Silvain J, Collet JP, Vicaut E, Zeymer U, Desch S, Thiele H, Montalescot G; Collaborators.

Abstract

Aims

The aim of this study was to determine the prognostic impact of pre- and post-PCI TIMI flow grade and TIMI myocardial perfusion grade (TMPG) in a well-defined group of patients with cardiogenic shock due to acute myocardial infarction.

Methods

Patients with infarct-related cardiogenic shock randomised into the CULPRIT-SHOCK trial were included in the angiographic predictor analysis whenever their TIMI flow grade or TMPG was available in the core lab database (96.9% of cases). A multivariable logistic regression analysis, adjusted on non-angiographic covariates, was performed to investigate whether TIMI flow grade or TMPG was independently associated with all-cause mortality or renal replacement therapy up to one year.

Results

Pre-PCI TIMI flow grade and TMPG did not impact on mortality. When analysed in separate multivariable models, post-PCI TIMI 3 flow and TMPG grade 3 were both significantly associated with reduced risk of 30-day mortality: aOR 0.61 (95% CI: 0.38-0.97, p=0.037) and 0.46 (95% CI: 0.29-0.72, p<0.001), respectively. When considered in the same multivariable model, only TMPG was significantly associated with 30-day mortality (aOR 0.38 [0.20-0.71], p=0.002), the 30-day composite of all-cause mortality and renal replacement therapy (aOR 0.34 [0.18-0.66], p=0.001) and mortality at one-year follow-up (aOR 0.46 [0.24-0.88], p=0.02).

Conclusions

Post-PCI TIMI flow grade and TMPG are associated with mortality after PCI. TMPG is a better discriminator, supporting microcirculation rather than epicardial reperfusion for prognosis estimation.

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