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Kinugawa K. How to treat stage D heart failure?: When to implant left ventricular assist devices in the era of continuous flow pumps? <i>Circ J<\/i> 2011; 75: 2038\u20132045.","DOI":"10.1253\/circj.CJ-11-0621"},{"key":"2","doi-asserted-by":"crossref","unstructured":"2. Kirklin JK, Naftel DC, Pagani FD, Kormos RL, Stevenson LW, Blume ED, et al. Sixth INTERMACS annual report: A 10,000-patient database. <i>J Heart Lung Transplant<\/i> 2014; 33: 555\u2013564.","DOI":"10.1016\/j.healun.2014.04.010"},{"key":"3","doi-asserted-by":"crossref","unstructured":"3. Miller LW, Pagani FD, Russell SD, John R, Boyle AJ, Aaronson KD, et al. Use of a continuous-flow device in patients awaiting heart transplantation. <i>N Engl J Med<\/i> 2007; 357: 885\u2013896.","DOI":"10.1056\/NEJMoa067758"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4. Karmonik C, Partovi S, Schmack B, Weymann A, Loebe M, Noon GP, et al. 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Preoperative beta-blocker treatment is a key for deciding left ventricular assist device implantation strategy as a bridge to recovery. <i>J Artif Organs<\/i> 2014; 17: 23\u201332.","DOI":"10.1007\/s10047-013-0748-7"},{"key":"8","doi-asserted-by":"crossref","unstructured":"8. Imamura T, Kinugawa K, Fujino T, Inaba T, Maki H, Hatano M, et al. Aortic insufficiency in patients with sustained left ventricular systolic dysfunction after axial flow assist device implantation. <i>Circ J<\/i> 2014; 79: 104\u2013111.","DOI":"10.1253\/circj.CJ-14-0944"},{"key":"9","doi-asserted-by":"crossref","unstructured":"9. Slaughter MS, Pagani FD, Rogers JG, Miller LW, Sun B, Russell SD, et al. Clinical management of continuous-flow left ventricular assist devices in advanced heart failure. <i>J Heart Lung Transplant<\/i> 2010; 29(Suppl): S1\u2013S39.","DOI":"10.1016\/j.healun.2010.01.011"},{"key":"10","doi-asserted-by":"crossref","unstructured":"10. Hatano M, Kinugawa K, Shiga T, Kato N, Endo M, Hisagi M, et al. Less frequent opening of the aortic valve and a continuous flow pump are risk factors for postoperative onset of aortic insufficiency in patients with a left ventricular assist device. <i>Circ J<\/i> 2011; 75: 1147\u20131155.","DOI":"10.1253\/circj.CJ-10-1106"},{"key":"11","doi-asserted-by":"crossref","unstructured":"11. Guglin M, Miller L. Myocardial recovery with left ventricular assist devices. <i>Curr Treat Options Cardiovasc Med<\/i> 2012; 14: 370\u2013383.","DOI":"10.1007\/s11936-012-0190-9"},{"key":"12","doi-asserted-by":"crossref","unstructured":"12. Thohan V, Stetson SJ, Nagueh SF, Rivas-Gotz C, Koerner MM, Lafuente JA, et al. Cellular and hemodynamics responses of failing myocardium to continuous flow mechanical circulatory support using the DeBakey-Noon left ventricular assist device: A comparative analysis with pulsatile-type devices. <i>J Heart Lung Transplant<\/i> 2005; 24: 566\u2013575.","DOI":"10.1016\/j.healun.2004.02.017"},{"key":"13","doi-asserted-by":"crossref","unstructured":"13. Haft J, Armstrong W, Dyke DB, Aaronson KD, Koelling TM, Farrar DJ, et al. Hemodynamic and exercise performance with pulsatile and continuous-flow left ventricular assist devices. <i>Circulation<\/i> 2007; 116(Suppl): I8\u2013I15.","DOI":"10.1161\/CIRCULATIONAHA.106.677898"},{"key":"14","doi-asserted-by":"crossref","unstructured":"14. Klotz S, Deng MC, Stypmann J, Roetker J, Wilhelm MJ, Hammel D, et al. Left ventricular pressure and volume unloading during pulsatile versus nonpulsatile left ventricular assist device support. <i>Ann Thorac Surg<\/i> 2004; 77: 143\u2013149, discussion 9\u201350.","DOI":"10.1016\/S0003-4975(03)01336-5"},{"key":"15","doi-asserted-by":"crossref","unstructured":"15. Kato TS, Chokshi A, Singh P, Khawaja T, Cheema F, Akashi H, et al. Effects of continuous-flow versus pulsatile-flow left ventricular assist devices on myocardial unloading and remodeling. <i>Circ Heart Fail<\/i> 2011; 4: 546\u2013553.","DOI":"10.1161\/CIRCHEARTFAILURE.111.962142"},{"key":"16","doi-asserted-by":"crossref","unstructured":"16. Krabatsch T, Schweiger M, Dandel M, Stepanenko A, Drews T, Potapov E, et al. Is bridge to recovery more likely with pulsatile left ventricular assist devices than with nonpulsatile-flow systems? <i>Ann Thorac Surg<\/i> 2011; 91: 1335\u20131340.","DOI":"10.1016\/j.athoracsur.2011.01.027"},{"key":"17","doi-asserted-by":"crossref","unstructured":"17. Simon MA, Kormos RL, Murali S, Nair P, Heffernan M, Gorcsan J, et al. Myocardial recovery using ventricular assist devices: Prevalence, clinical characteristics, and outcomes. <i>Circulation<\/i> 2005; 112(Suppl): I32\u2013I36.","DOI":"10.1161\/CIRCULATIONAHA.104.524124"},{"key":"18","doi-asserted-by":"crossref","unstructured":"18. Simon MA, Primack BA, Teuteberg J, Kormos RL, Bermudez C, Toyoda Y, et al. Left ventricular remodeling and myocardial recovery on mechanical circulatory support. <i>J Card Fail<\/i> 2010; 16: 99\u2013105.","DOI":"10.1016\/j.cardfail.2009.10.018"},{"key":"19","doi-asserted-by":"crossref","unstructured":"19. Imamura T, Kinugawa K, Nitta D, Fujino T, Inaba T, Maki H, et al. Novel scoring system using postoperative cardiopulmonary exercise testing predicts future explantation of left ventricular assist device. <i>Circ J<\/i> 2015; 79: 560\u2013566.","DOI":"10.1253\/circj.CJ-14-1058"},{"key":"20","doi-asserted-by":"crossref","unstructured":"20. Drakos SG, Wever-Pinzon O, Selzman CH, Gilbert EM, Alharethi R, Reid BB, et al. Magnitude and time course of changes induced by continuous-flow left ventricular assist device unloading in chronic heart failure: Insights into cardiac recovery. <i>J Am Coll Cardiol<\/i> 2013; 61: 1985\u20131994.","DOI":"10.1016\/j.jacc.2013.01.072"},{"key":"21","doi-asserted-by":"crossref","unstructured":"21. Maybaum S, Mancini D, Xydas S, Starling RC, Aaronson K, Pagani FD, et al. Cardiac improvement during mechanical circulatory support: A prospective multicenter study of the LVAD Working Group. <i>Circulation<\/i> 2007; 115: 2497\u20132505.","DOI":"10.1161\/CIRCULATIONAHA.106.633180"},{"key":"22","doi-asserted-by":"crossref","unstructured":"22. Madigan JD, Barbone A, Choudhri AF, Morales DL, Cai B, Oz MC, et al. Time course of reverse remodeling of the left ventricle during support with a left ventricular assist device. <i>J Thorac Cardiovasc Surg<\/i> 2001; 121: 902\u2013908.","DOI":"10.1067\/mtc.2001.112632"},{"key":"23","doi-asserted-by":"crossref","unstructured":"23. Bartoli CR, Giridharan GA, Litwak KN, Sobieski M, Prabhu SD, Slaughter MS, et al. Hemodynamic responses to continuous versus pulsatile mechanical unloading of the failing left ventricle. <i>ASAIO J<\/i> 2010; 56: 410\u2013416.","DOI":"10.1097\/MAT.0b013e3181e7bf3c"},{"key":"24","doi-asserted-by":"crossref","unstructured":"24. Muranaka H, Marui A, Tsukashita M, Wang J, Nakano J, Ikeda T, et al. Prolonged mechanical unloading preserves myocardial contractility but impairs relaxation in rat heart of dilated cardiomyopathy accompanied by myocardial stiffness and apoptosis. <i>J Thorac Cardiovasc Surg<\/i> 2010; 140: 916\u2013922.","DOI":"10.1016\/j.jtcvs.2010.02.006"},{"key":"25","unstructured":"25. Kinoshita M, Takano H, Taenaka Y, Mori H, Takaichi S, Noda H, et al. Cardiac disuse atrophy during LVAD pumping. <i>ASAIO Trans<\/i> 1988; 34: 208\u2013212."},{"key":"26","doi-asserted-by":"crossref","unstructured":"26. Ootaki Y, Kamohara K, Akiyama M, Zahr F, Kopcak MW Jr, Dessoffy R, et al. Phasic coronary blood flow pattern during a continuous flow left ventricular assist support. <i>Eur J Cardiothorac Surg<\/i> 2005; 28: 711\u2013716.","DOI":"10.1016\/j.ejcts.2005.08.008"},{"key":"27","doi-asserted-by":"crossref","unstructured":"27. Loebe M, Koster A, Sanger S, Potapov EV, Kuppe H, Noon GP, et al. Inflammatory response after implantation of a left ventricular assist device: Comparison between the axial flow MicroMed DeBakey VAD and the pulsatile Novacor device. <i>ASAIO J<\/i> 2001; 47: 272\u2013274.","DOI":"10.1097\/00002480-200105000-00023"},{"key":"28","doi-asserted-by":"crossref","unstructured":"28. Connelly JH, Abrams J, Klima T, Vaughn WK, Frazier OH. Acquired commissural fusion of aortic valves in patients with left ventricular assist devices. <i>J Heart Lung Transplant<\/i> 2003; 22: 1291\u20131295.","DOI":"10.1016\/S1053-2498(03)00028-7"},{"key":"29","doi-asserted-by":"crossref","unstructured":"29. Westaby S, Bertoni GB, Clelland C, Nishinaka T, Frazier OH. Circulatory support with attenuated pulse pressure alters human aortic wall morphology. <i>J Thorac Cardiovasc Surg<\/i> 2007; 133: 575\u2013576.","DOI":"10.1016\/j.jtcvs.2006.10.014"},{"key":"30","doi-asserted-by":"crossref","unstructured":"30. Pak SW, Uriel N, Takayama H, Cappleman S, Song R, Colombo PC, et al. Prevalence of de novo aortic insufficiency during long-term support with left ventricular assist devices. <i>J Heart Lung Transplant<\/i> 2010; 29: 1172\u20131176.","DOI":"10.1016\/j.healun.2010.05.018"},{"key":"31","doi-asserted-by":"crossref","unstructured":"31. Larose JA, Tamez D, Ashenuga M, Reyes C. 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