Hirabayashi G, et al. - In patients undergoing robot-assisted laparoscopic radical prostatectomy (RLRP), researchers determined the impacts of pressure-controlled inverse inspiratory to expiratory ratio ventilation (PC-IRV) on the components of dead space. It was noted that in this patient population, PC-IRV with the inspiratory to expiratory ratio individually adjusted by the expiratory flow-time wave decreased physiological dead space (VD_phys)/expired tidal volume (V_TE).