Q:

The patient in the previous question is found to have disease unsuitable for PTCA. Concerning operative revascularization (CABG) the following is/are true:

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The patient in the previous question is found to have disease unsuitable for PTCA. Concerning operative revascularization (CABG) the following is/are true: 


  1. CABG is more effective than medical treatment for relieving angina and improving physical work capacity
  2. In CABG for unstable angina, there is no difference in late outcome between stable and unstable cohorts
  3. For CABG, the most common arterial graft is the left internal mammary artery
  4. Long term patency is improved when arterial grafts are used but there is no difference in the early mortality rate

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a. CABG is more effective than medical treatment for relieving angina and improving physical work capacity

b. In CABG for unstable angina, there is no difference in late outcome between stable and unstable cohorts

c. For CABG, the most common arterial graft is the left internal mammary artery

Randomized studies show that CABG is more effective than medical therapy for relieving angina, improving physical work capacity and improving overall quality of life. When CABG is used for unstable angina, the initial complication and mortality rates are higher than for stable angina, but the late outcomes are similar. Use of arterial grafts for CABG has increased with the left internal mammary artery used most commonly; when at least one mammary artery is used, the early mortality rate is improved.

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