The authors studied the prognostic significance of Silent myocardial ischemia. To study the correlation between the silent ischemia before the operation of coronary revascularization and the perioperative complications (infarction, mortality) Holter-monitoring (HM) was performed with 26 patients. The average time of HM was 43 +/- 3.1 h. During the observation period total 138 silent ischemic episodes were registered with 7 patients. The average heart rate observed during the ischemic event did not differ from that observed in other periods. Three myocardial infarctions occurred in the perioperative period one of them was of lethal outcome. Silent ischemia was detected in 2 of 3 patients before operation. The patient who displayed the gravest ischemic alteration died of perioperative myocardial infarction. On the basis of their observations the authors attribute prognostic significance to the preoperative silent myocardial ischemia.
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