Supraventricular tachycardia promotes release of troponin I in patients with normal coronary arteries

Background Troponin I and T are sensitive markers of myocardial injury. The presence of elevated troponin often prompts further investigation with coronary angiography. Methods We present a series of patients presenting to our unit with raised troponin I and supraventricular tachycardia (SVT) that prompted coronary angiography. Results All patients had normal epicardial vessels at angiogram, no evidence of muscle bridging or pulmonary embolism. Conclusion The presence of tachycardia sufficient to warrant hospital admission can raise troponin, and this should be viewed in context when a decision on angiography is to be taken. Article Ou