Fig. 2
From: Phrenic nerve stimulation to prevent diaphragmatic dysfunction and ventilator-induced lung injury
Overview of different phrenic nerve stimulation techniques that have been applied in critically ill patients. The nomenclature of the stimulation techniques was adopted from the studies in which they were first used for this particular study population. Nevertheless, the terms "EDP" [57] and "DPS" [48] have been marginally revised to improve categorisation, differentiation and comprehensibility with respect to the other existing techniques [11, 52,53,54,55,56]