Outcomes According to Coronary Revascularization Modality in the ISCHEMIA Trial.

• In the ISCHEMIA trial, the risk of ischemic events was similar in patients with stable coronary artery disease treated with an invasive (INV) strategy of angiography and percutaneous (PCI) or surgical (CABG) coronary revascularization and a conservative (CON) strategy of initial medical therapy.To analyze separately the outcomes of INV patients treated with PCI or CABG.Patients without preceding primary outcome events were categorized as INV-PCI or INV-CABG from the time of revascularization. The ISCHEMIA primary outcome (composite of cardiovascular death, protocol-defined myocardial infarction (MI) or hospitalization for unstable angina, heart failure or resuscitated cardiac arrest) was used.Among INV-CABG patients, primary outcome events occurred in 84/512 (16.4%) at median follow-up of 2.85 years; 48 events (57.1%) occurred within 30 days after CABG, including 40 procedural MIs; among INV-PCI patients, primary outcome events occurred in 147/1500 (9.8%) at median follow-up of 2.94 years; 31 of which (21.1%) within 30 days after PCI, including 23 procedural MIs. In comparison, 352/2591 (13.6%) CON patients had primary outcome events at median follow-up 3.2 years, 22 of which (6.3%) within 30 days of randomization. The adjusted primary outcome risks (HR [95%CI]) were higher after both CABG and PCI within 30 days (16.25 (11.44-23.07) and 2.99 (1.97-4.53)) and lower thereafter (0.63 (0.44-0.89) and 0.66(0.53-0.82)).In ISCHEMIA, early revascularization by PCI and CABG was associated with higher early risks and lower long-term risks of cardiovascular events compared with CON. The early risk was greatest after CABG, due to protocol-defined procedural MIs.

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MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Kardiologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)

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