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Table 2 Peroperative date and results

From: Aortic valve replacement in elderly with small aortic root and low body surface area; the Perceval S valve and its impact in effective orifice area

  SVP (25) sutureless valve BVP (25) classic biological valve (soprano) P value
Number of patients 25 25  
Preop. max gradient 88 ± 10.5 89 ± 12.5  
Postop. max gradient 23.5 ± 19.20 mmHg 24.5 ± 19.90 mmHg 0.670
Preop EOA 0.45 ± 0.19 0.47 ± 0.21  
Postop ΕΟΑ 1.5 ± 0.3 cm2 1.1 ± 0.5 cm2 0.002
Operation time 149.38 ± 15.22 min 206.64 ± 42.85 min p < 0.001
CPB time 73.75 ± 8.12 min 120.36 ± 28.31 min p < 0.001
Ischemia time 40 ± 5.50 min 86 ± 15.86 min p < 0.001
Temporary postop pacing, permanent 15/25-3/25 2/25- 0/25  
Postoperative intubation time 6 ± 1.5 h 7 ± 1 h  
ICU stay 15 ± 3.5 h 16 ± 4 h  
Hospital stay 8 ± 1.5 days 7 ± 1.8 days  
Postop follow-up 8 ± 1.5 months 8 ± 1.8 months  
Death 0/25 1/25 arhythmia  
  1. Comparison of the two groups of patients. EOA effective orifice area, ICU intensive care unit