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2016;11(3-4):93. VII. nacionalni sastanak o kardiovaskularnim intervencijama s međunarodnim sudjelovanjem VI. sastanak intervencijskih kardioloskih medicinskih sestara i tehnicara Case presentation: A 66-year-old man was admitted to our department due to persistent chest pain that awoke him from sleep, accompanied by transient ST elevation in anteroseptal leads (Figure 1). Several months earlier a coronary angiography was done due to anginal pain that only revealed nonsignificant atherosclerotic lesion in the ostial segment of the left anterior descending (LAD) artery and mild myocardial bridging of the middle LAD segment, and the patient was discharged on low dose of bisoprolol, amlodipine, aspirin, statin and sublingual nitroglycerin as needed. At this point, the pain was relieved after administration of sublingual nitroglycerin. Echocardiogram showed no regional wall abnormalities and the high-sensitive troponin T test came back normal repeatedly. Coronary angiography was performed the following day, showing nonstenotic coronary lesions at first, but after several contrast dye injections, the ostial LAD showed a total occlusion (Figure 2). Intracoronary nitroglycerin was then given that gradually led to a complete relief of the obstruction, revealing the underlying atherosclerotic lesion (Figure 3). Conclusion: Based on previous findings, the diagnosis of variant („vasospastic“) angina was made1. The patient was discharged with diltiazem and long-lasting nitrate. Beta blockade can be useful in case of effort-induced angina caused by atherosclerotic disease and myocardial bridging. However, we decided to withhold it because of possible occurrence of the unopposed alpha-receptor mediated coronary vasoconstriction. We believe that the coronary artery spasm (CAS) prevention was the primary treatment goal in this case, since there were no signs of effort-induced ischemia on the treadmill and myocardial SPECT test. Abstinence from cigarette smoking and optimal dosing and timing of calcium antagonists remain the cornerstone of CAS therapy2. These patients with acute coronary syndrome (ACS) without culprit lesion have an excellent prognosis for survival and coronary events after 3 years Željko Baricevic*, Kristina Maric Besic, Maja Strozzi

Variant angina in a patient with non-obstructive atherosclerotic coronary lesion and myocardial bridging: a puzzle not so easy to solve.