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[Correspondence] Percutaneous coronary intervention for stable angina in ORBITA

Rasha Al-Lamee and colleagues1 report that in patients with medically treated angina and a severe single-vessel coronary stenosis, percutaneous coronary intervention (PCI) did not increase exercise time by more than that seen after a placebo procedure. The authors should be commended for doing the first blinded trial to address this issue. However, we have concerns that some features of the trial design could limit the applicability of the findings to routine clinical practice.