Parameter changes and influencing factors in sixty patients with interventional surgery for liver cancer diagnoses

Table 1 Comparison of electrocardiographic-related parameters, mean ± SD

Group	Case	24 hours QTV	SDNN	SDANN-index	SDNN-index
Abnormal group	21	19.44 ± 3.12	75.88 ± 11.85	66.46 ± 9.44	28.11 ± 5.44
Non-abnormal group	39	22.89 ± 5.44	84.34 ± 12.44	72.46 ± 11.12	35.11 ± 7.44
t	-	3.120	2.592	2.204	4.162
P value	-	0.003	0.012	0.032	< 0.001

QTV: Interval variability; SDNN: 24 hours normal atrial polarization to ventricular polarization (R-R) interval (standard deviation); SDANN-index: 24 hours consecutive 5 minutes normal R-R interval; SDNN-index: 24 hours continuous 5 minutes normal R-R interval (standard deviation mean).

Table 2 Univariate analysis of electrocardiographic abnormalities in patients, n (%)

Project	Abnormal group (n = 21)	Non-abnormal group (n = 39)	t/χ2	P value
Sex
Male	12 (57.14)	22 (56.41)	0.003	0.956
Female	9 (42.86)	17 (43.59)	-	-
Age
≤ 60 years	6 (28.57)	28 (71.79)	10.385	0.001
> 60 years	15 (71.43)	11 (28.21)	-	-
Tumor diameter
< 10 cm	19 (90.48)	34 (87.18)	0.002	0.966
≥ 10 cm	2 (9.52)	5 (12.82)	-	-
Course of disease, mean ± SD	4.84 ± 0.34	5.02 ± 0.41	0.303	0.763
Liver function Child-Pugh grade
A	6 (28.57)	26 (66.67)	7.959	0.005
B	15 (71.43)	13 (33.33)	-	-
Postoperative vomiting
Yes	11 (52.38)	20 (51.28)	0.007	0.935
No	10 (47.62)	19 (48.72)	-	-
Postoperative body temperature
< 38 °C	7 (33.33)	28 (71.79)	8.308	0.004
≥ 38 °C	14 (66.67)	11 (28.21)	-	-
Postblood potassium at 3 days
< 6 mmol/L	18 (85.71)	28 (71.79)	0.803	0.370
≥ 6 mmol/L	3 (14.29)	11 (28.21)	-	-
Postoperative pain degree at 1 day
< 7 scores	10 (47.62)	21 (53.85)	0.212	0.645
≥ 7 scores	11 (52.38)	18 (46.15)	-	-

Table 3 Variable assignments

Independent variable	Type of variable	Evaluate
Age	Classified variable	1: > 60, 0: ≤ 60
Child-Pugh classification of liver function	Classified variable	1: B grade, 0: A grade
Postoperative body temperature	Classified variable	1: ≥ 38 °C, 0: < 38 °C

Table 4 Multiple logistic regression model analysis of the risk factors of electrocardiographic abnormalities in patients with hepatocellular carcinoma intervention

Factor	Partial regression coefficient	Standard error	Wald	OR	95%CI	P value
Age > 60	1.137	0.312	17.517	2.476	1.634-3.684	< 0.001
Liver function Child-Pugh grade B	1.157	0.344	10.224	2.054	1.179-3.644	< 0.001
Postoperative body temperature ≥ 38 °C	1.304	0.214	22.436	3.585	1.674-6.912	< 0.001

OR: Odds ratio; CI: Confidence interval.