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Article Abstract
Background: Notwithstanding readily available revascularization, significant advancements in mechanical circulatory support, and pharmacological progress, cardiogenic shock (CS) secondary to unprotected left main culprit lesion-related acute myocardial infarction (ULMCL-related AMI) is associated with very high mortality. In this population, chronic total occlusion (CTO) is relatively frequent.
Aims: This study sought to assess the association between the presence of CTO and 12-month mortality in patients with CS due to ULMCL-related AMI.
Results: The study included consecutive patients admitted for AMI-related CS with ULMCL who underwent percutaneous coronary intervention (PCI) and were enrolled in the prospective Polish Registry of Acute Coronary Syndromes (PL-ACS) between January 2017 and December 2021. The patients were stratified into two groups based on the presence of at least one CTO. The primary endpoint was all-cause death at 12 months. Of the 250 included patients, 60 (24%) patients had one or more CTOs of a major coronary artery (+CTO), and in 190 (76%) patients, the presence of CTO was not observed (-CTO). The 12-month mortality rates for the +CTO and -CTO patients were 85% and 69.8%, respectively (P log-rank = 0.03). After multivariable adjustment for differences in the baseline characteristics, the presence of CTO remained significantly associated with higher 12-month mortality (hazard ratio, 1.423; 95% CI, 1.027-1.973; P = 0.034).
Conclusions: Our analysis showed that in patients with CS due to ULMCL-related AMI treated with PCI, the presence of CTO is associated with worse 12-month prognosis.
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| http://dx.doi.org/10.33963/v.phj.98889 | DOI Listing |
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