Can routine perioperative haemodynamic parameters predict postoperative morbidity after major surgery?

Table 6 Correlations between patient characteristics and intraoperative haemodynamic parameters and CCI and LOS, stratified according to NSQIP (> 15)

	CCI		LOS
	NSQIP < 15 N = 26	NSQIP > 15 N = 24	NSQIP < 15	NSQIP > 15
Comprehensive Complication Index	1	1	0.28	0.49
Age	tau = 0.33, p= 0.04	0.239	0.195	0.353* p= 0.04
Intraoperative
Heart rate > 100 (duration)	− 0.186	0.16	0.129	− 0.234
Heart rate < 55 (duration)	0.364* p= 0.04	− 0.074	0.044	0.146
Heart rate > 87 (duration)	− 0.019	0.195	0.304	− 0.037
Systolic blood pressure < 100 (duration)	0.177	0.205	0.058	0.255
Pulse pressure > 62 (duration)	0.056	0.245	0.303	0.380* p= 0.009
Pulse pressure < 53 (duration)	0.101	− 0.032	− 0.152	0.019
Mean arterial pressure < 75 (duration)	0.202	0.378* p= 0.03	0.238	0.370* p= 0.03
Mean arterial pressure < 55 (duration)	− 0.113	0.521* p= 0.005	0.078	0.272
PACU^
Heart rate > 100 (duration)	− 0.165	− 0.081	− 0.005	− 0.125
Heart rate < 55 (duration)	0.044	0.066	0.054	0.05
Heart rate > 87 (duration)	− 0.212	0.125	− 0.055	0.096
Systolic blood pressure < 100 (duration)	− 0.11	0.061	0.285	0.026
Pulse pressure > 62 (duration)	− 0.005	− 0.125	0.14	0.082
Pulse pressure < 53 (duration)	− 0.256	− 0.053	0.004	0.008
Mean arterial pressure < 75 (duration)	0.071	0.109	0.152	0.071
Mean arterial pressure < 55 (duration)	− 0.025	0.268	0.065	0.3

This is the risk (%) of perioperative cardiac events using the ACS-NSQIP prediction tool that was being used at the time of the MET-REPAIR study. Data shown are Kendall’s correlation coefficient for tied ranks (Tau-B)
*p value < 0.05, actual value given
^None of the Kendall’s correlation coefficient for tied rank (Tau-B) values in Post Anaesthesia Care Unit (PACU) reached statistical significance

ISSN: 2047-0525