Q:

Which statement(s) about operative mortality and perioperative incidence of myocardial infarction for elective CABG (X) versus emergency CABG following failed PTCA (Y) is/are accurate?

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Which statement(s) about operative mortality and perioperative incidence of myocardial infarction for elective CABG (X) versus emergency CABG following failed PTCA (Y) is/are accurate?


  1. The operative mortality is higher for Y but the incidence of perioperative myocardial infarction is unchanged between X and Y.
  2. The operative mortality is unchanged between X and Y but the perioperative incidence of myocardial infarction is higher in Y.
  3. The operative mortality and perioperative incidence is higher in X than in Y.
  4. The operative mortality and perioperative incidence of myocardial infarction are no different for X and for Y.

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C. The operative mortality and perioperative incidence is higher in X than in Y.

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