Subtotal occlusion of a seemingly benign small non-dominant right coronary artery can lead to sudden cardiac death, prolonged right ventricular dysfunction, and malignant arrhythmias requiring AICD placement.
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May warrant arrhythmia vigilance after minor non-dominant RCA occlusion; leaves open need for prospective validation in larger cohorts.
Karim et al. (1995) studied this question.
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