Key result
CABG fails to resolve symptoms in 3 patients with complete LMCA occlusion.
Case Report (n=5)
Patients with complete occlusion of the left main coronary artery can survive with a long history of angina due to collateral circulation, and some undergo coronary bypass grafting.
Persistent symptoms after CABG in left main occlusion warrant caution in expecting relief; leaves open optimal management for this rare anatomy.
Five patients aged 24 to 62 years presenting with a long history of angina were found to have complete occlusion of the left main coronary artery. In one patient the right coronary artery was also completely blocked. All patients had a dominant right coronary artery which was significantly diseased in only one patient. Ventricular function was severely impaired in only one patient. These patients illustrate the importance of collateral information in this condition. Coronary bypass grafting was performed in three patients who are now symptomatic at follow-up between nine and 17 months.
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Ward et al. (1983) conducted a case report in Complete occlusion of the left main coronary artery (n=5). Complete occlusion of the left main coronary artery was evaluated. Among five patients with complete occlusion of the left main coronary artery, three underwent coronary bypass grafting and remained symptomatic at 9 to 17 months follow-up.
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