Survival of subjects listed for heart transplantation with different spirometric ventilatory patterns. Survival of subjects listed for heart transplantation with different spirometric ventilatory patterns. A: Kaplan-Meier estimates for the primary outcome (death and left ventricular assist device implantation). B: Kaplan-Meier estimates for the secondary outcome (death, urgent transplantation, and left ventricular assist device implantation). Vasiliki V Georgiopoulou et al. Respir Care 2015;60:731-739 (c) 2012 by Daedalus Enterprises, Inc.