Patients who have undergone CABG surgery using the IMA are at risk for the development of coronary-subclavian steal. Therefore, recurrence of angina or ECG signs suggestive of myocardial ischemia after CABG with the IMA must be evaluated immediately. Recognition of the signs and symptoms with appropriate intervention is necessary to prevent the life-threatening consequences of reversed bloodflow from the myocardium. Routine assessment of bilateral blood pressure measurements may provide a critical clue in identifying this syndrome.

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