ABC | Volume 111, Nº2, August 2018

Short Editorial Silva & Coelho-Filho Diagnostic techniques and the neuro-humoral theory in heart failure Arq Bras Cardiol. 2018; 111(2):191-192 1. Swedberg K, Hjalmarson A, Waagstein F, Wallentin I. Prolongation of survival in congestive cardiomyopathy by beta-receptor blockade. Lancet. 1979;1(8131):1374-6. 2. Waagstein F, Hjalmarson A, Varnauskas E, Wallentin I. Effect of chronic beta-adrenergic receptor blockade in congestive cardiomyopathy. Br Heart J. 1975;37(10):1022-36. 3. Effect of metoprolol CR/XL in chronic heart failure: Metoprolol CR/XL Randomised Intervention Trial in Congestive Heart Failure (MERIT-HF). Lancet. 1999;353(9169):2001-7. 4. Packer M, BristowMR, Cohn JN, Colucci WS, Fowler MB, Gilbert EM, et al. The effect of carvedilol on morbidity and mortality in patients with chronic heart failure. U.S. Carvedilol Heart Failure Study Group. N Engl J Med. 1996;334(21):1349-55. 5. Cohn JN, Archibald DG, Ziesche S, Franciosa JA, Harston WE, Tristani FE, et al. Effect of vasodilator therapy on mortality in chronic congestive heart failure. Results of a Veterans AdministrationCooperative Study. NEngl JMed. 1986;314(24):1547-52. 6. Lang CC, Rayos GH, Chomsky DB, Wood AJ, Wilson JR. Effect of sympathoinhibition on exercise performance in patients with heart failure. Circulation. 1997;96(1):238-45. 7. Cohn JN, Pfeffer MA, Rouleau J, Sharpe N, Swedberg K, Straub M, et al; MOXCON Investigators. Adverse mortality effect of central sympathetic inhibition with sustained-release moxonidine in patients with heart failure (MOXCON). Eur J Heart Fail. 2003;5(5):659-67. 8. ThavendiranathanP,GrantAD,NegishiT,Plana JC,PopovićZB,MarwickTH. Reproducibility of echocardiographic techniques for sequential assessment of left ventricular ejection fraction and volumes: application to patients undergoing cancer chemotherapy. J Am Coll Cardiol. 2013;61(1):77-84. 9. Thavendiranathan P, Poulin F, Lim KD, Plana JC, Woo A, Marwick TH. Use of myocardial strain imaging by echocardiography for the early detection of cardiotoxicity inpatientsduringandaftercancerchemotherapy:asystematic review. J Am Coll Cardiol. 2014;63(25 Pt A):2751-68. 10. Lotze U, Kober A, Kaepplinger S, Neubauer S, Gottschild D, Figulla HR. Cardiac sympathetic activity as measured by myocardial 123-I-metaiodobenzylguanidine uptake and heart rate variability in idiopathic dilated cardiomyopathy. Am J Cardiol. 1999;83(11):1548-51. 11. Yamazaki J, Muto H, Kabano T, Yamashina S, Nanjo S, Inoue A. Evaluation of beta-blocker therapy in patients with dilated cardiomyopathy--Clinical meaningof iodine123-metaiodobenzylguanidinemyocardialsingle-photon emission computed tomography. AmHeart J. 2001;141(4):645-52. 12. Marino VP, Dumont SM, Mota SG, Braga LS, Freitas S, Moreira MC. Disautonomia simpática na insuficiência cardíaca pela 123 I-MIBG: comparação entre pacientes chagásicos, não chagásicos e transplantes cardíacos. Arq Bras Cardiol. 2018; 111(2):182-190. 13. Simoes MV, Pintya AO, Bromberg-Marin G, Sarabanda AV, Antloga CM, Pazin-Filho A, et al. Relation of regional sympathetic denervation and myocardial perfusion disturbance to wall motion impairment in Chagas’ cardiomyopathy. Am J Cardiol. 2000;86(9):975-81. 14. Bestetti RB, Coutinho-Netto J, Staibano L, Pinto LZ, Muccillo G, Oliveira JS. Peripheral and coronary sinus catecholamine levels in patients with severe congestive heart failure due to Chagas’ disease. Cardiology. 1995;86(3):202-6. References This is an open-access article distributed under the terms of the Creative Commons Attribution License 192