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Table 2 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 = 148) Heparin group (n = 148) P value
Age (year) 60.3 ± 10.0 59.5 ± 12.6 0.5
Gender (male) 104, 70.3% 115, 77.7% 0.1
Weight (kg) 65.9 ± 14.5 66.8 ± 12.6 0.6
NYHA class    0.6
 I (n,%) 0 0  
 II (n,%) 19, 12.8% 22, 14.9%  
 III (n,%) 43, 29.0% 44, 29.0%  
 IV (n,%) 87, 58.2% 83, 56.1%  
EuroSCORE 3.5 ± 2.7 3.3 ± 3.0 0.5
Previous Medical History
 Acute Myocardial infarction (n,%) 86, 58.1% 82, 55.4% 0.6
 Arrhythmia (n,%) 62, 41.9% 72, 48.6% 0.2
 Diabetes Mellitus (n,%) 64, 43.2% 54, 36.5% 0.2
 Chronic Renal Failure (n,%) 40, 27.0% 45, 30.4% 0.5
 Hypertension (n,%) 107, 72.3% 106, 71.6% 0.9
 Liver Disease (n,%) 7, 4.7% 4, 2.7% 0.4
 Smoking 82, 55.4% 73, 49.3% 0.297
 Alcohol drinking (n,%) 90, 60.8% 85, 57.4% 0.556
Preoperative LVEF (%) 46.0 ± 4.1 46.0 ± 5.9 0.9
Preoperative LVDd (mm) 58.4 ± 9.6 58.9 ± 10.8 0.7
CPB time (minutes) 151.2 ± 65.8 148.4 ± 69.6 0.7
ACC time (minutes) 119.5 ± 54.0 115.7 ± 56.5 0.6
Surgical Procedures    0.5
 On-Pump CABG (n,%) 24, 16.2% 20, 13.5%  
 Off-Pump CABG (n,%) 39, 26.3% 30, 20.2%  
 Valves (n,%) 53, 35.2% 72, 48.1%  
 CABG+ Valves (n,%) 33, 22.3% 27, 18.2%  
  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