Reliability of bioreactance and pulse power analysis in measuring cardiac index during cytoreductive abdominal surgery with hyperthermic intraperitoneal chemotherapy (HIPEC)

Table 2 Results from cardiac index measurements made by Starling SV compared to bolus thermodilution technique with a pulmonary artery catheter

Starling SV	Bias (l min^− 1 m^− 2)	Bias 95% CI	LOA lower (l min^− 1 m^− 2)	LOA lower 95% CI	LOA upper (l min^− 1 m^− 2)	LOA upper 95% CI	Percentage error (%)	Percentage error 95% CI	Regression coefficient (l min^− 1 m^− 2)	Regression coefficient 95% CI
All n = 439	0.13	0.05 to 0.20	−1.55	− 1.89 to − 1.21	1.71	1.37 to 2.05	60.0	47.0 to 72.8	− 0.25	− 0.37 to − 0.13
Phase 1 n = 32	0.04	− 0.18 to 0.27	− 1.31	−1.79 to − 0.84	1.25	0.77 to 1.72	58.3	33.7 to 77.7	0.17	− 0.49 to 0.83
Phase 2 n = 273	0.11	0.02 to 0.19	−1.42	− 1.79 to − 1.05	1.63	1.26 to 2.01	56.9	44.2 to 73.0	− 0.16	− 0.30 to − 0.02
Phase 3 n = 64	− 0.16	− 0.39 to 0.07	− 2.11	− 2.71 to − 1.50	1.88	1.27 to 2.48	60.5	45.8 to 84.6	− 0.25	− 0.86 to 0.35
Phase 4 n = 70	0.52	0.37 to 0.68	−1.06	−1.49 to −0.63	1.88	1.45 to 2.31	50.2	36.1 to 69.6	−0.45	−0.82 to − 0.09

Phase 1 was before the initiation of cytoreductive surgery (CRS) in the operation room, phase was 2 during CRS, phase 3 was during hyperthermic intraperitoneal chemotherapy (HIPEC) and phase 4 was after HIPEC before leaving to the intensive care unit
LOA Limits of agreement

ISSN: 1471-2253