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Table 1 Baseline and Characteristics

From: A comparison of heparinised and non-heparinised normal saline solutions for maintaining the patency of arterial pressure measurement cannulae after heart surgery

Variable NS group (n = 170) Heparin group (n = 2930) P value
Age (year) 60.3 ± 9.9 58.1 ± 12.0 < 0.05
Gender (male) 114, 3.9% 958, 32.7% 0.9
Weight (kg) 66.4 ± 15.2 65.2 ± 14.1 0.3
NYHA class    0.3
 I (n,%) 0 0  
 II (n,%) 20, 11.8% 353, 12.0%  
 III (n,%) 48, 28.2% 952, 32.5%  
 IV (n,%) 102, 60.0% 1625, 55.5%  
EuroSCORE 3.3 ± 2.6 4.5 ± 3.4 < 0.001
Previous Medical History
 Acute Myocardial infarction (n,%) 103, 60.6% 1380,47.1% 0.003
 Arrhythmia (n,%) 75, 44.1% 1259, 43.0% 0.8
 Diabetes Mellitus (n,%) 70, 41.2% 1074, 36.7% 0.2
 Chronic Renal Failure (n,%) 47, 27.6% 594, 20.3% < 0.05
 Hypertension (n,%) 123, 72.3% 1840, 62.8% < 0.05
 Liver Disease (n,%) 7, 4.1% 179, 6.1% 0.3
 Smoking 91, 53.5% 1480, 50.5% 0.4
 Alcohol drinking (n,%) 95, 55.9% 1834, 62.6% 0.1
Preoperative LVEF (%) 46.1 ± 4.0 45.9 ± 5.6 0.8
Preoperative LVDd (mm) 58.1 ± 9.9 59.1 ± 9.7 0.2
CPB time (minutes) 155.3 ± 66.9 132.4 ± 68.9 < 0.001
ACC time (minutes) 122.6 ± 55.0 118.8 ± 67.5 0.4
Surgical Procedures    0.1
 On-Pump CABG (n,%) 29, 17.0% 373, 12.7%  
 Off-Pump CABG (n,%) 46, 27.1% 634, 21.6%  
 Valves (n,%) 61, 35.9% 1363, 46.6%  
 CABG+ Valves (n,%) 34, 20.0% 560, 19.1%  
  1. NYHA: New York Heart Association, CPB: Cardiopulmonary Bypass, Median (Interquartile Range), CABG: Coronary Artery Bypass Grafting, ACC: Aortic Cross Clamp, LVDd: Left Ventricular End-Diastolic diameter, LVEF: Left Ventricular Ejection Fraction, Mean ± SD, NS: Normal Saline