Impact of cardiac surgery on the autonomic cardiovascular function

Journal of Computational Surgery

Computing, Robotics, and Imaging for the Surgical Platform

Table 3 Results from HRV analysis

Parameter	Group	preOP		1d postOP		7d postOP		p value
		mean ± sd	p value	mean ± sd	p value	mean ± sd	p value
meanNN	MVR	879±155	n.s.	728±78.9	n.s.	747±78.7	n.s.	<0.001
(in ms)	AVR	902±138		739±117		790±145		<0.001
	TAVI	883±139		827±161		817±122		n.s.
sdNN	MVR	36.5±23.8	n.s.	14.3±7.07	<0.01	15.1±9.80	<0.001	<0.001
(in ms)	AVR	31.9±13.6		23.1±10.2		25.9±21.5		<0.01
	TAVI	28.3±10.9		32.5±13.7		28.4±13.5		n.s.
shannon	MVR	1.83±0.52	n.s.	1.03±0.35	<0.001	1.06±0.42	<0.001	<0.001
(unitless)	AVR	1.78±0.38		1.41±0.43		1.42±0.55		<0.001
	TAVI	1.63±0.36		1.77±0.34		1.65±0.38		n.s.
FORBWORD	MVR	31.7±13.0	n.s.	49.0±6.07	<0.001	47.5±10.6	<0.01	<0.001
(unitless)	AVR	34.4±10.9		36.7±13.7		41.9±11.1		<0.01
	TAVI	36.8±9.72		27.4±13.3		33.1±17.4		n.s.
POLVAR10	MVR	0.11±0.24	n.s.	0.43±0.33	<0.001	0.43±0.27	<0.001	<0.001
(unitless)	AVR	0.12±0.19		0.24±0.27		0.24±0.32		<0.05
	TAVI	0.07±0.10		0.04±0.05		0.08±0.12		n.s.
P_HF/P	MVR	0.14±0.08	n.s.	0.17±0.14	n.s.	0.14±0.11	n.s.	n.s.
(unitless)	AVR	0.13±0.09		0.20±0.17		0.16±0.15		n.s.
	TAVI	0.20±0.12		0.23±0.16		0.23±0.17		n.s.
P_LF/P	MVR	0.29±0.12	n.s.	0.16±0.10	n.s.	0.13±0.09	n.s.	<0.001
(in ms)	AVR	0.25±0.10		0.20±0.10		0.19±0.10		<0.05
	TAVI	0.25±0.13		0.16±0.08		0.22±0.14		n.s.
P_LF/P_HF	MVR	2.83±1.97	<0.05	1.70±2.26	n.s.	2.14±3.28	n.s.	<0.01
(unitless)	AVR	3.00±2.19		1.97±2.54		2.90±2.58		<0.05
	TAVI	1.93±1.72		1.00±0.62		1.60±1.30		n.s.

Mean values and standard deviations of HRV parameters. Given p values are results from Kruskal-Wallis tests. The first three p values target transversal comparisons, and the last p value (last column) shows the results of the longitudinal, i.e., within surgical procedure, analysis. Results of transversal post hoc tests for selected parameters are shown in Figure 4. Results of longitudinal post hoc tests are given in Table 4.