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KMID : 0311120190600060535
Yonsei Medical Journal
2019 Volume.60 No. 6 p.535 ~ p.541
Effect of Cardiac Rehabilitation on Outcomes in Patients with ST-Elevation Myocardial Infarction
Lee Hye-Young

Hong Sung-Jin
Jung In-Hyun
Kim Gwang-Sil
Byun Young-Sup
Kim Byung-Ok
Abstract
Purpose: Whether cardiac rehabilitation (CR) improves clinical outcomes in patients with ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) with drug-eluting stents (DESs) has not been thoroughly evaluated. Moreover, few studies have sought to identify patients who would benefit most from CR among STEMI patients.

Materials and Methods: Consecutively, 265 STEMI patients who underwent primary PCI with implantation of DESs and follow-up angiography were examined. Seventy-six patients (30%) who received CR were assigned to the CR+ group. Another 178 patients (70%) who did not participate in CR were assigned to the CR? group. Second generation DESs were implanted in 238 (94%) patients.

Results: Major adverse cardiovascular events (MACEs), including death, myocardial infarction, and revascularization, were compared. The CR+ group tended to have lower MACE than the CR? group at 3 years, although the difference was not statistically significant (9.9% vs. 18.3%, hazard ratio=0.54, p=0.138). Subgroup analysis revealed a significant interaction according to CR and preprocedural thrombolysis in myocardial infarction (TIMI) flow (p value for interaction=0.011). In patients with low preprocedural TIMI flow (TIMI flow ¡Â1, n=161), those in the CR+ group had significantly lower MACE than those in the CR? group (p=0.005), whereas MACE was not different among patients with higher TIMI flow (TIMI flow ¡Ã2, n=93).

Conclusion: CR including exercise training was associated with lower MACE, particularly in patients with lower preprocedural TIMI flow during primary PCI for STEMI in the current DES era.
KEYWORD
Cardiac rehabilitation, myocardial infarction, drug eluting stent
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