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Table 2 Patient and perioperative characteristics

From: Validity of the Postoperative Morbidity Survey after abdominal aortic aneurysm repair—a prospective observational study

Variable n Total (n = 64) EVAR (n = 31) Open (n = 33)
Age (years) 64 72.7 (7.9) 75.6 (6.2) 70.0 (8.5)
Male:female 64 61:3 29:2 32:1
Body mass index (kg m−2) 62 28.2 (5.0) 28.0 (4.6) 28.4 (5.4)
ASA-PS 64    
 2   11 1 10
 3   47 26 21
 4   6 4 2
Revised cardiac risk index (Lee et al. 1999) 64    
 1   26 12 14
 2   30 16 14
 3   8 3 5
Estimated glomerular filtration rate (Levey et al. 1999) (ml min−1) 64 76.7 (21.5) 75.9 (22.8) 77.6 (20.6)
Size of AAA (cm) 64 6.7 (1.3) 6.4 (1.2) 7.1 (1.4)
Duration of procedure (h) 57 3.2 [2.2–5.4] 2.5 [2.0–3.6] 4.0 [3.0–6.3]
Aortic cross-clamp time (h) 28 1.1 [0.8–1.8] n/a 1.1 [0.9–1.8]
Estimated blood loss (L) 44 1.2 [0.5–3.8] 0.5 [0.3–0.6] 2 [1.2–4.6]
Type of anaesthetic 64    
 General   45 12 33
 Spinal   4 4 0
 Epidural   32 2 30
 Combined spinal-epidural   14 14 0
In-hospital mortality 64 1 0 1
Postoperative LOS (days) 64 6 [4–11] 4 [3–6] 9 [6–13]
Critical care LOS (days) 64 2 [1–4] 1 [1–2] 4 [2–6]
  1. Data are mean (SD), median [interquartile range] or number
  2. ASA-PS American Society of Anesthesiologists Physical Status, LOS length of stay, EVAR endovascular aneurysm repair
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