During the outbreak of COVID-19, for patients with acute ST-segment elevation myocardial infarction with unclear infection, the time of primary PCI is uncertain, and it is often expected to exceed 90 minutes or even 120 minutes. In indicated patients, intravenous thrombolysis has significantly improved the recanalization time of criminal vessels.

During the outbreak of COVID-19, for patients with acute ST-segment elevation myocardial infarction with unclear infection, the time of primary PCI is uncertain, and it is often expected to exceed 90 minutes or even 120 minutes. In indicated patients, intravenous thrombolysis has significantly improved the recanalization time of criminal vessels. The purpose of this study was to compare the time from first medical contact to patency and safety (specifically symptom improvement, ECG ST segment) between intravenous thrombolysis and concurrent patients with possible primary PCI in a prospective, multicenter, non-randomized controlled manner. Significant fall, angiographic examination showed criminal blood vessel TIMI blood flow grade 2-3)

Inclusion Criteria:

• ECG confirms acute ST-segment elevation myocardial infarction；The estimated time from FMC to recanalization is more than 120 minutes；

Exclusion Criteria:

• Intracranial hemorrhage or stroke within the past 6 months; central nervous system injury, tumor or arteriovenous malformation; bleeding disease with known cause; suspected aortic dissection; non-compressible puncture surgery within 24 hours, etc.; 1 week of pregnancy or postpartum; uncontrolled hypertension; advanced liver disease; active peptic ulcer; prolonged or invasive CPR;