1. Baroreflex impairment and morbidity after major surgery
A. Toner, N. Jenkins, G.L. Ackland 
British Journal of Anaesthesia 
Volume 117, Issue 3, Pages (September 2016)
DOI: /bja/aew257
Copyright © 2016 The Author(s) Terms and Conditions

2. Fig 1
Baroreflex analysis and hospital stay. (a) Schematic diagram showing measurement and calculation of baroreflex sensitivity (BRS). Using a validated sequence method technique (one beat lag), a baroreflex event is defined by three or more consecutive beats where the systolic blood pressure (SBP) and pulse interval (PI) changed in tandem and are highly correlated (r>0.85). (b) The slope of the linear regression line of PI against SBP generates the BRS of each event in milliseconds per millimetre of mercury. (b) Baroreflex sensitivity <6 ms mm Hg−1 was associated with prolonged hospital stay [hazard ratio:1.62 (95% confidence interval: 1.14–2.32); P=0.004; unadjusted log-rank analysis]. Inset plot highlights length of stay in patients with BRS <3 ms mm Hg−1.
British Journal of Anaesthesia  , DOI: ( /bja/aew257)
Copyright © 2016 The Author(s) Terms and Conditions