
Palliative Treatment of Dyspnea With Epidural Methadone in Advanced Emphysema
Keywords: dyspnea; emphysema; epidural; methadoneBDI = basal dyspnea index; f = respiratory frequency; FRC = functional residual capacity; 6MW = 6-min walk; P0.1= mouth occlusion pressure; RSBI = rapid shallow breathing index; TDI = transitional dyspnea index; Ti/T