Understanding the Outcomes of PCI in Stable Angina Patients Quiz
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Questions and Answers

In the ORBITA-2 trial, the new end point introduced was centered on what?

  • Measurement of the efficacy of PCI in patients with angina
  • Contemporaneous documentation of daily angina on a smartphone application (correct)
  • Patient and public engagement and involvement
  • High temporal fidelity of data

What percentage of patients in ORBITA were found to have residual symptoms despite the use of background antianginal medications and PCI?

  • 61% (correct)
  • 50%
  • 75%
  • 40%

What was the primary focus of the ORBITA-2 trial?

  • Testing a coronary interventional procedure without the use of background therapy that may attenuate its effect (correct)
  • Mandating guideline-directed antianginal medication as a precondition for PCI
  • Evaluation of the efficacy of PCI in patients with angina
  • Testing the effect of PCI on treadmill exercise time

What was the effect of PCI as monotherapy on treadmill exercise time in the blinded ORBITA-2 trial?

<p>59.5-second difference (C)</p> Signup and view all the answers

What was the rationale behind the use of a smartphone application in the ORBITA-2 trial?

<p>High temporal fidelity of data and minimization of recall bias (A)</p> Signup and view all the answers

What was the effect of PCI on angina symptom score compared to placebo in the trial?

<p>PCI resulted in a lower angina symptom score than the placebo procedure (A)</p> Signup and view all the answers

What was the observed effect of PCI on the daily number of angina episodes?

<p>PCI resulted in a lower daily number of angina episodes than the placebo procedure (D)</p> Signup and view all the answers

How did assignment to the PCI group compare to assignment to the placebo group in terms of becoming free from angina at the 12-week follow-up?

<p>Assignment to the PCI group was associated with three times higher odds of becoming free from angina compared to the placebo group (C)</p> Signup and view all the answers

How did the design of ORBITA-2 differ from that of ORBITA?

<p>The trials were designed to answer different questions (C)</p> Signup and view all the answers

What is a plausible explanation for the small effect size of PCI on treadmill exercise time in ORBITA?

<p>The previous experience was unblinded and was therefore augmented by the placebo effect (D)</p> Signup and view all the answers

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