A) Previously, curative-restorative care was seen as an “all or none” phenomenon, and palliative care was only initiated once curative-restorative care options were exhausted. B) Palliative care principles were incorporated concurrently with curative-restorative care models, but as less curative-restorative care options existed palliative care was intensified. C) This model accounts for the fact that care trajectories rarely change at a constant, linear slope; rather, care intensity is augmented by punctuated exacerbations of illness over time.
From Lankan PN, Terry PB, Delisser HM, et al. An official American Thoracic Society clinical policy statement: palliative care for patients with respiratory diseases and critical illnesses. Am J Respir Crit Care Med. Apr 15 2008;177(8):912–927; with permission.