Effects of Remote Ischemic Preconditioning in Older Adults with AMI and TIA

Overview

This study evaluates the impact of remote ischemic preconditioning (RIPC) on major adverse cardiac and cerebrovascular events (MACCE) in older adults with acute myocardial infarction (AMI) and recent transient ischemic attack (TIA). Results indicate that RIPC is associated with a lower 12-month risk of MACCE compared to standard care.

Background

Elderly patients experiencing AMI in close temporal proximity to TIA face heightened risks of recurrent cardiovascular events due to increased inflammatory responses. RIPC has been proposed as a potential protective strategy, yet clinical evidence in this specific patient population remains limited.

Data Highlights

Key Findings

• RIPC was associated with a lower 12-month risk of MACCE (29.2% vs. 49.1%, P = 0.033).
• The unadjusted HR for MACCE with RIPC was 0.593 (95% CI, 0.367–0.958).
• The adjusted HR for MACCE with RIPC was 0.725 (95% CI, 0.545–0.964; P = 0.026).
• Higher baseline IL-6 and hs-CRP levels independently predicted MACCE.
• ACE-inhibitor therapy was associated with a lower risk of MACCE (HR, 0.714; P = 0.035).
• No significant treatment-by-subgroup interactions were observed.

Clinical Implications

Findings include associations between inflammatory markers IL-6 and hs-CRP and MACCE risk.

Conclusion

RIPC was associated with a lower 12-month risk of MACCE in older adults with AMI and TIA.

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