Читать книгу Practical Cardiovascular Medicine - Elias B. Hanna - Страница 98
2. A patient presents with ongoing chest pain for the last 8 hours. His ECG shows inferior ST elevation of 1 mm with deep Q waves. Should he undergo emergent reperfusion?
ОглавлениеQ waves often develop at 1–14 hours after STEMI onset, while the ST segment is still elevated. While Q waves are associated with a more delayed presentation, larger MI, less myocardial salvage, and worse short-term prognosis, they are not synonymous with irreversible myocardial damage and do not preclude reperfusion therapy; significant myocardial salvage is achieved in the overwhelming majority of those patients (>70%).5-7 Persistent Q waves at >1 month have a stronger prognostic value than acute Q waves.
