Radial versus femoral artery access for percutaneous coronary artery intervention in patients with acute myocardial infarction and multivessel disease complicated by cardiogenic shock: Subanalysis from the CULPRIT-SHOCK trial.

Guedeney, Paul; Thiele, Holger; Kerneis, Mathieu; Barthélémy, Olivier; Baumann, Stefan; Sandri, Marcus; de Waha-Thiele, Suzanne; Fuernau, Georg; Rouanet, Stéphanie; Piek, Jan J; Landmesser, Ulf; Hauguel-Moreau, Marie; Zeitouni, Michel; Silvain, Johanne; Lattuca, Benoit; Windecker, Stephan; Collet, Jean-Philippe; Desch, Steffen; Zeymer, Uwe; Montalescot, Gilles; ... (2020). Radial versus femoral artery access for percutaneous coronary artery intervention in patients with acute myocardial infarction and multivessel disease complicated by cardiogenic shock: Subanalysis from the CULPRIT-SHOCK trial. American Heart Journal, 225, pp. 60-68. Elsevier 10.1016/j.ahj.2020.04.014

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BACKGROUND

The use and impact of transradial artery access (TRA) compared to transfemoral artery access (TFA) in patients undergoing percutaneous coronary intervention (PCI) for acute myocardial infarction (MI) complicated by cardiogenic shock (CS) remain unclear.

METHODS

This is a post hoc analysis of the CULPRIT-SHOCK trial where patients presenting with MI and multivessel disease complicated by CS were randomized to a strategy of culprit-lesion-only or immediate multivessel PCI. Arterial access was left at operator's discretion. Adjudicated outcomes of interest were the composite of death or renal replacement therapy (RRT) at 30 days and 1 year. Multivariate logistic models were used to assess the association between the arterial access and outcomes.

RESULTS

Among the 673 analyzed patients, TRA and TFA were successfully performed in 118 (17.5%) and 555 (82.5%) patients, respectively. Compared to TFA, TRA was associated with a lower 30-day rate of death or RRT (37.3% vs 53.2%, adjusted odds ratio [aOR]: 0.57; 95% confidence interval [CI] 0.34-0.96), a lower 30-day rate of death (34.7% vs 49.7%; aOR: 0.56; 95% CI 0.33-0.96), and a lower 30-day rate of RRT (5.9% vs 15.9%; aOR: 0.40; 95% CI 0.16-0.97). No significant differences were observed regarding the 30-day risks of type 3 or 5 Bleeding Academic Research Consortium bleeding and stroke. The observed reduction of death or RRT and death with TRA was no longer significant at 1 year (44.9% vs 57.8%; aOR: 0.85; 95% CI 0.50-1.45 and 42.4% vs 55.5%, aOR: 0.78; 95% CI 0.46-1.32, respectively).

CONCLUSIONS

In patients undergoing PCI for acute MI complicated by CS, TRA may be associated with improved early outcomes, although the reason for this finding needs further research.

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