Thrombolysis in STEMI with Cardiogenic Shock

Critical Decision Framework

The European Society of Cardiology recommends reperfusion therapy in all STEMI patients with symptoms <12 hours duration and persistent ST-elevation, regardless of hemodynamic status 1, 2
The European Society of Cardiology suggests that when primary PCI cannot be performed within 120 minutes of STEMI diagnosis, fibrinolytic therapy is recommended within 12 hours of symptom onset in patients without contraindications 1, 2
The presence of hypotension (SBP 70 mmHg) indicates cardiogenic shock, which is a high-risk feature requiring the most aggressive reperfusion strategy available 2
Cardiogenic shock patients have the highest mortality benefit from reperfusion therapy 2
Emergency angiography and PCI is specifically recommended in patients with heart failure/shock, but when unavailable, thrombolysis becomes the only life-saving option 1, 2

The American College of Cardiology recommends aspirin 150-325 mg orally or IV immediately 1, 2, 3
The European Society of Cardiology suggests clopidogrel 300 mg loading dose (given the shock state and likely need for rescue PCI) 1, 2
The European Society of Cardiology recommends a fibrin-specific thrombolytic agent preferred: Alteplase, tenecteplase, or reteplase over streptokinase 1, 2, 3
The European Society of Cardiology recommends enoxaparin IV followed by subcutaneous (preferred over UFH) or weight-adjusted UFH bolus followed by infusion 1, 2
The European Society of Cardiology suggests initiating vasopressor support (norepinephrine or dopamine) to maintain adequate perfusion pressure 1
The European Society of Cardiology recommends transfer to PCI-capable center must be arranged immediately after fibrinolysis initiation 1, 2, 3
The American College of Cardiology recommends assessing ST-segment resolution at 60-90 minutes post-fibrinolysis 1, 2, 3
The European Society of Cardiology suggests rescue PCI is indicated immediately if <50% ST-segment resolution 1, 2, 3

The European Society of Cardiology provides Class I, Level A recommendations for both fibrinolytic therapy when PCI is unavailable and for emergency angiography in shock patients 1, 2
The American College of Cardiology supports transfer for primary PCI in high-risk patients, but when transfer time exceeds 120 minutes, fibrinolysis should not be delayed 4, 5

The American Heart Association recommends rapidly excluding active bleeding or bleeding diathesis before administering thrombolytics 4
The American College of Cardiology suggests excluding history of intracranial hemorrhage or stroke before administering thrombolytics 5
The European Society of Cardiology recommends excluding recent major surgery or trauma (<3 weeks) before administering thrombolytics 1
The European Society of Cardiology suggests excluding suspected aortic dissection (critical in hypotensive patients) before administering thrombolytics 1

The American College of Cardiology and American Heart Association guidelines recommend emergency transfer without fibrinolysis to a PCI center when the anticipated first medical contact-to-device time is ≤120 minutes, but fibrinolytic therapy with routine transfer for angiography within 3-6 hours becomes the preferred alternative strategy when this time window cannot be achieved 6, 7
The American College of Cardiology recommends fibrinolytic therapy with routine transfer for angiography within 3-6 hours when the anticipated first medical contact-to-device time exceeds 120 minutes 6, 8

Primary PCI remains superior when first medical contact-to-device time is ≤90 minutes for patients at PCI-capable hospitals, or ≤120 minutes when transfer is required, according to the American College of Cardiology 7
The European Society of Cardiology guidelines demonstrate that fibrinolysis should be administered when anticipated first medical contact-to-device time exceeds 120 minutes due to unavoidable delays, with most analyses supporting fibrinolysis when delays exceed 120 minutes 9

The pharmacoinvasive approach has demonstrated outcomes comparable to primary PCI when fibrinolysis is administered early and transfer occurs within 3-24 hours, according to the American College of Cardiology 6, 8
The European Society of Cardiology guidelines support the use of fibrinolysis followed by routine early angiography, which combines immediate reperfusion benefit from fibrinolysis and mechanical revascularization advantages through subsequent PCI 9

The European Society of Cardiology guidelines show that transfer for PCI only without fibrinolysis results in unacceptable delays to reperfusion, with every 30-minute delay associated with increased mortality 9, 10
The American College of Cardiology explicitly recommends against fibrinolysis with monitoring in the ED without subsequent transfer, as it misses the opportunity for rescue PCI and fails to address residual coronary stenosis 6, 8

The American College of Cardiology recommends arranging immediate transfer during or immediately after fibrinolytic administration, with the goal of angiography within 3-6 hours of fibrinolysis 6, 7
The American College of Cardiology guidelines support assessing ST-segment resolution at 60-90 minutes post-fibrinolysis to determine the need for rescue PCI or routine angiography 6, 8

The American College of Cardiology guidelines note that fibrinolysis increases stroke risk and hemorrhagic stroke risk compared to primary PCI, but reduces cardiogenic shock and maintains equivalent mortality when administered early in the prehospital or early hospital setting 9, 10