PMC5758954_01
Regadenoson stress testing shows no signs of ischemia or obstructive coronary artery disease.
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He was discharged the following day and subsequently underwent a repeat Regadenoson nuclear stress test (Figure 1) and an echocardiogram; both were reported as normal.
Invasive coronary angiography (ICA) reveals 98% stenosis of the left anterior descending (LAD) coronary artery.
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A few days later, during catheterization, it was discovered that the patient had a 98% stenosis in the proximal left anterior descending (LAD) artery (Figure 2).