Fig. 2

Acute effects of lung transplant on cardiac autonomic complexity from entropy-derived parameters in supine position. Corrected conditional entropy (CE) represents the predictability of R-R intervals (i.e., low predictability = high sympathetic modulation); Index of regularity (Ro) is derived from CE and could range from 0 to 1 (high regularity = low complexity and high sympathetic modulation); bpm: beats per minute; ms: milliseconds; T0: baseline, before lung transplant; T1: 15 days after lung transplant. α < 0.05