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Reperfusion hemorrhage following PTCA and thrombolysis for left main coronary artery occlusion
D F Smith1, L A Higginson, V M Walley
1University of Ottawa Heart Institute, Ottawa Civic Hospital.
Insights
Myocardial reperfusion hemorrhage is rare after percutaneous transluminal coronary angioplasty, especially for left main occlusions. This report details three cases of this complication in patients with heart attack and cardiogenic shock.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Hemorrhagic Complications
Background:
- Myocardial reperfusion hemorrhage (MRH) is a known complication following reperfusion therapies for acute myocardial infarction.
- Its occurrence after percutaneous transluminal coronary angioplasty (PTCA) is infrequent, and it has not been previously documented after reopening left main coronary artery occlusions.
Observation:
- This case series reports on three patients who experienced MRH after PTCA.
- These patients presented with myocardial infarction and cardiogenic shock.
- Two patients underwent PTCA with streptokinase infusion, while one had PTCA alone for acutely thrombosed left main coronary arteries.
Findings:
- The study examines the timing of reperfusion in relation to symptom onset and patient demise.
- Reperfusion occurred at varying intervals (24, 9, and 7 hours after symptom onset).
- Hemorrhagic complications were noted in the context of severe cardiac events and interventions.
Implications:
- This highlights a rare but serious complication of PTCA, particularly in complex left main interventions.
- Understanding the factors contributing to MRH is crucial for risk stratification and patient management.
- Further research is needed to elucidate the mechanisms and optimal treatment strategies for MRH in this setting.
Abstract:
Myocardial reperfusion hemorrhage has been reported in humans but rarely after percutaneous transluminal coronary artery angioplasty (PTCA) of occluded vessels and not after the reopening of left main occlusions. Three patients with infarct and cardiogenic shock and reperfusion hemorrhages after PTCA, with or without streptokinase infusion and reopening of acutely thrombosed left main coronary arteries are reported here. The effect of the reperfusion 24,9 and 7 h after symptom onset and 24,25 and 3 h before death is examined.