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Table1 Characteristics of the patients

From: Effect of Del Nido cardioplegia on ventricular arrhythmias after cardiovascular surgery

  DNC group
(n = 324)
STH Group
(n = 630)
Statistic P value
AGE (year) 60.44 ± 11.40 58.96 ± 13.26 1.791 0.074
Male (n, %) 168 (51.85%) 365 (57.94%) 3.064 0.080
APACHE II 12.36 ± 5.16 12.29 ± 7.63 − 0.164 0.870
euroSCORE 4.15 ± 1.26 4.00 ± 1.02 0.679 0.497
pre-EF (%) 59.73 ± 7.52 59.83 ± 9.89 − 0.164 0.870
pre-Cr (μmoI/L) 71.00 (59.00,87.25) 70.30 (59.00,87.00) − 0.359# 0.720
Diabetes (n,%) 44 (13.60%) 120 (19.05%) 4.117 0.043*
Hypertensive (n,%) 151 (46.60%) 316 (50.16%) 0.944 0.331
Cerbral Infarction (n,%) 36 (11.11%) 57 (9.05%) 0.814 0.367
Chronic Renal Insufficiency (n,%) 33 (10.19%) 53 (8.41%) 0.618 0.365
pre-Atrial Fibrillation (n,%) 17 (5.25%) 30 (4.76%) 0.029 0.865
pre-Ventricular Arrhythmia (n,%) 9 (2.78%) 15 (2.35%) 0.023 0.879
OP time(hrs) 4.08 (3.50,4.67) 3.58 (3.00,4.33) − 5.942# < 0.001**
AB time(min) 80.00 (62.00,101.25) 61.00 (46.80,83.30) − 8.607# < 0.001**
CBP time(min) 116.00 (92.00,141.00) 89.00 (69.00,118.00) − 8.713#  < 0.001**
K+max (mmol/L) 4.92 ± 0.60 4.84 ± 0.54 2.136 0.033*
post-EF (%) 60.00 (51.30,62.00) 60.00 (54.75,62.00) − 1.224# 0.221
post-Cr max(umol/L) 88.45 (73.18,119.00) 87.60 (70.70,122.50) − 0.735# 0.463
TnT(ng/mL) 366.80 (224.65,678.70) 274.45 (135.50,511.08) − 5.142#  < 0.001**
CK-MB (U/L) 45.00 (31.00,64.00) 35.00 (24.00,55.00) − 5.289#  < 0.001**
CK (U/L) 581.50 (438.00,881.00) 563.00 (391.50,802.00) 2.196# 0.028*
TnI (ng/mL) 0.59 (0.17,1.98) 0.42 (0.17,1.34) − 1.851# 0.064
NT-proBNP (pg/mL) 799.96 (290.94,2204.76) 676.35 (242.45,1916.71) − 1.733# 0.083
Lac(mmol/L) 2.70 (1.80,3.90) 2.50 (1.80,3.60) − 1.572# 0.116
post-Atrial Fibrillation (n,%) 56 (17.39%) 100 (15.94%) 0.311 0.577
post-Ventricular Arrhythmia (n,%) 40 (12.42%) 109 (17.40%) 4.224 0.040*
Length of ICU stay(day) 1.97 ± 1.49 2.26 ± 1.46 − 2.864 0.004**
  1. Definitions: APACHE II = Acute Physiology and Chronic Health Evaluation II, euroSCORE = European system for cardiac operative risk evaluation, pre-EF = Perioperative ejection fraction, pre-Cr = Perioperative creatinine. . indicates that the comparison of variables between groups uses the t test, and the statistic provides a t value; . indicates that the comparison of variables between groups uses the chi-square test, the statistic provides an \(\chi\) 2 value; #. indicates that the comparison of variables between groups uses the sum test, and the statistic provides a Z value