ABC | Volume 111, Nº4, Octuber 2018

Short Editorial Campos & Lemos To defer or not defer? the challenges of physiology in ACS Arq Bras Cardiol. 2018; 111(4):551-552 1. Toth G, Hamilos M, Pyxaras S, Mangiacapra F, Nelis O, De Vroey F, et al. Evolvingconceptsofangiogram: fractional flowreservediscordances in4000 coronary stenoses. Eur Heart J.2014; 35(40):2831-8. 2. Bhatt DL. Assessment of stable coronary lesions. N Engl J Med. 2017;376(19):1879-81. 3. Windecker S, Kolh P, Alfonso F, Collet JP, Cremer J, Falk V, et al. 2014 ESC/ EACTS guidelines on myocardial revascularization. EuroIntervention. 2015;10(9):11024-94. 4. Bech GJ, De Bruyne B, Pijls NH, de Muinck ED, Hoorntje JC, Escaned J, et al. Fractional flow reserve to determine the appropriateness of angioplasty in moderate coronary stenosis: a randomized trial. Circulation. 2001; 103(24):2928-34. 5. Costantini CR, Ramires JA, Costantini CO, DenkMA, Tarbine SG, SantosMF, et al. Comparative study between perfusion changes and positive findings on coronary flow reserve. Arq Bras Cardiol. 2017;108(1):38-46. 6. Martins JL, Afreixo V, Santos J, Gonçalves L. Fractional flow reserve-guided strategy in acute coronary syndrome. a systematic reviewandmeta-analysis. Arq Bras Cardiol. 2018; 111(4):542-550. 7. Escaned J, RyanN, Mejia-RenteriaH, Cook CM, Dehbi HM, Alegria-Barrero E, et al. Safety of the deferral of coronary revascularization on the basis of instantaneous wave-free ratio and fractional flow reserve measurements in stable coronary artery disease and acute coronary syndromes. JACC Cardiovasc Interv. 2018;11(15):1437-49. 8. Cuculi F, De Maria GL, Meier P, Dall’Armellina E, de Caterina AR, Channon KM, et al. Impact of microvascular obstruction on the assessment of coronary flow reserve, index of microcirculatory resistance, and fractional flow reserve after ST-segment elevation myocardial infarction. J Am Coll Cardiol.2014; 64(18):1894-904. 9. BuffonA, Biasucci LM, LiuzzoG, D’OnofrioG, Crea F, Maseri A.Widespread coronary inflammation in unstable angina. NEngl J Med. 2002;347(1):5-12. References This is an open-access article distributed under the terms of the Creative Commons Attribution License 552