Perioperative fluid dynamics evaluated by bioelectrical impedance analysis predict infectious surgical complications after esophagectomy

Table 3 ROC analysis in the prediction of infectious complications with each parameter on POD 2

Parameter	Timing	AUROC	Cut-off value	Sensitivity	Specificity
ECW change	2POD am	0.83	+ 3.0 kg	90.7%	66.7%
ECW change	2POD pm	0.84	+ 3.9 kg^a	83.3%^a	75.0%^a
ICW/FFM	2POD am	0.93	36.7%	90.9%	100%
ICW/FFM	2POD pm	0.83	37.2%	83.3%	83.3%
ECW/TBW	2POD am	0.81	47.8%	81.8%	75.0%
ECW/TBW	2POD pm	0.80	49.0%	75.0%	83.3%
BW change	2POD	0.75	+ 2.5 kg	91.7%	66.7%
CFB/ preop.BW	2POD	0.72	+ 101.1 mL/kg	75.0%	66.7%

The cut-off values and the sensitivity and specificity values are shown with AUROC values
^aSetting the cut-off value at + 4.2 kg also achieved a sensitivity of 75.0% and a specificity of 83.3%. All cut off values were defined by Youden index. AUROC Area under the Receiver Operating Characteristics curve, ECW extracellular water, ICW internal cellular water, FFM fat free mass, TBW total body water, BW body weight, CFB cumulative fluid balance, preop preoperative

ISSN: 1471-2482