Which of the following indicates tissue reperfusion during thrombolytic therapy with t-PA?

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Multiple Choice

Which of the following indicates tissue reperfusion during thrombolytic therapy with t-PA?

Thrombolytic therapy aims to dissolve the clot and restore blood flow to ischemic heart tissue; when perfusion returns, the ischemia resolves. Reduction in chest pain is the clearest clinical sign that myocardial tissue is receiving blood again, indicating reperfusion. While arrhythmias like ventricular tachycardia or ventricular fibrillation can occur in the setting of ischemia or reperfusion, they are not reliable indicators that perfusion has been restored. No change in ECG would suggest that ischemia persists, whereas reperfusion typically leads to changes such as relief of ischemic symptoms and, sometimes, ECG improvements (though ECG changes are not the focus here). Thus, the reduction in chest pain best signals tissue reperfusion.

Thrombolytic therapy aims to dissolve the clot and restore blood flow to ischemic heart tissue; when perfusion returns, the ischemia resolves. Reduction in chest pain is the clearest clinical sign that myocardial tissue is receiving blood again, indicating reperfusion.

While arrhythmias like ventricular tachycardia or ventricular fibrillation can occur in the setting of ischemia or reperfusion, they are not reliable indicators that perfusion has been restored. No change in ECG would suggest that ischemia persists, whereas reperfusion typically leads to changes such as relief of ischemic symptoms and, sometimes, ECG improvements (though ECG changes are not the focus here). Thus, the reduction in chest pain best signals tissue reperfusion.

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