Cardiac arrest in infarct-related cardiogenic shock independently predicted 1-year mortality (HR 1.27; 95% CI 1.01-1.59), while culprit lesion-only PCI remained superior to multivessel PCI.
RCT (n=1,015)
Does culprit lesion-only PCI improve outcomes compared to immediate multivessel PCI in patients with infarct-related cardiogenic shock, regardless of the presence of cardiac arrest?
In patients with infarct-related cardiogenic shock, cardiac arrest is an independent predictor of 1-year mortality, but culprit lesion-only PCI remains the preferred revascularization strategy regardless of cardiac arrest status.
Absolute Event Rate: 51.2% vs 48.5%
p-value: p=0.39
BACKGROUND Cardiac arrest (CA) is common in patients with infarct-related cardiogenic shock (CS). OBJECTIVES The goal of this study was to identify the characteristics and outcomes of culprit lesion percutaneous coronary intervention (PCI) of patients with infarct-related CS stratified according to CA in the CULPRIT-SHOCK (Culprit Lesion Only PCI Versus Multivessel PCI in Cardiogenic Shock) randomized trial and registry. METHODS Patients with CS with and without CA from the CULPRIT-SHOCK study were analyzed. All-cause death or severe renal failure leading to renal replacement therapy within 30 days and 1-year death were assessed. RESULTS Among 1,015 patients, 550 (54.2%) had CA. Patients with CA were younger, more frequently male, had lower rates of peripheral artery disease, a glomerular filtration rate <30 mL/min, and left main disease, and they presented more often with clinical signs of impaired organ perfusion. The composite of all-cause death or severe renal failure within 30 days occurred in 51.2% of patients with CA vs 48.5% in non-CA patients (P = 0.39) and 1-year death in 53.8% vs 50.4% (P = 0.29), respectively. In a multivariate analysis, CA was an independent predictor of 1-year mortality (HR: 1.27; 95% CI: 1.01-1.59). In the randomized trial, culprit lesion-only PCI was superior to immediate multivessel PCI in patients both with and without CA (P for interaction = 0.6). CONCLUSIONS More than 50% of patients with infarct-related CS had CA. These patients with CA were younger and had fewer comorbidities, but CA was an independent predictor of 1-year mortality. Culprit lesion-only PCI is the preferred strategy, both in patients with and without CA. (Culprit Lesion Only PCI Versus Multivessel PCI in Cardiogenic Shock CULPRIT-SHOCK; NCT01927549).
“The interventional cardiologist treating a patient with cardiogenic shock after an acute myocardial infarction should do only the culprit lesion and later on do a staged revascularization.”
Zeymer et al. (Wed,) conducted a rct in Infarct-related cardiogenic shock (n=1,015). Cardiac arrest vs. No cardiac arrest was evaluated on Composite of all-cause death or severe renal failure leading to renal replacement therapy within 30 days (p=0.39). Cardiac arrest in infarct-related cardiogenic shock independently predicted 1-year mortality (HR 1.27; 95% CI 1.01-1.59), while culprit lesion-only PCI remained superior to multivessel PCI.