Table 1

Patient characteristics and outcome
Variable All Malignant Benign P
(n =70) (n = 58) (n = 12)
Age in years,median(IQR) 59(48–67) 61(52–69) 43 (35–52) <0.001c
Age group, n (%) 0.002b
  <65 years 42 (60) 30 (52) 12 (100)
  65 years 28 (40) 28 (48) 0 (0)
Sex,n(%) 0.011a
Male 35 (50) 33 (57) 2 (17)
Female 35 (50) 25 (43) 10 (83)
ASA physical status, n (%) <0.001a
  I/II 23 (33) 11 (19) 12 (100)
  III/IV 47 (67) 47 (81) 0 (0)
Body Mass Index in Kg/m2, median (IQR) 25 (22–30) 26 (23–30) 22 (21–30) 0.163b
Type of anesthesia, n (%) 0.440a
  General 59 (84) 48 (83) 11 (92)
  Combined general locorregional 11 (16) 10 (17) 1(8)
Duration of anesthesia (minutes), median (IQR) 300 (268–360) 300 (270–360) 285 (245–315) 0.298b
Intraoperative fluid volume
  Crystalloids (L.), median (P25–P75) 4.0 (3.2 – 4.9) 4.0 (3.3 – 4.9) 3.0 (3.0 – 5.2) 0.174b
  Colloids (L.), median (P25–P75) 0.5 (0 – 0.5) 0.5 (0 – 0.5) 0 (0 – 0.4) 0.083b
  Erythrocytes (Unit), median (P25–P75) 0 (0 – 1.0) 0 (0 – 1.0) 0 (0 – 0.0) 0.163b
  Fresh Frozen plasma (Unit), median (P25–P75) 0 (0–0) 0 (0–0) 0 (0–0) 0.295b
  Platelets (Unit), median (P25–P75) 0 (0–0) 0 (0–0) 0 (0–0) 0.517b
Temperature at PACU admission (°C), median (IQR) 34.7 (33.9–35.5) 34.8 (33.9–35.6) 34.7 (33.5–35.2) 0.623b
Hypertension,n (%) 37(53) 35(60) 2(17) 0.006a
Hyperlipidemia,n (%) 25(36) 24(41) 1(8) 0.030a
Pulmonary obstructive disease, n (%) 8 (11) 8 (14) 0 (0) 0.172a
Ischemic heart disease, n (%) 6 (9) 6 (10) 0 (0) 0.244a
Congestive heart disease, n (%) 10 (14) 10 (17) 0 (0) 0.132a
Cerebrovascular disease, n (%) 3 (4) 3 (5) 0 (0) 0.778a
Renal insufficiency, n (%) 4 (6) 3(5) 1 (8) 0.668a
Insulin therapy for diabetes, n (%) 3 (4) 3(5) 0 (0) 0.421a
Total RCRI, n (%) 0.349a
  ≤2 66 (94) 54 (93) 12 (100)
  >2 4 (6) 4 (7) 0 (0)
Katz scale, median (IQR) 0 (0–0) 0 (0–0) 0 (0–0) 0.424b
Dependency in I-ADL, n (%) 3 (4) 3 (5) 0 (0) 0.421a
Lawton I-ADL, median (IQR) 7 (7–7) 7 (7–7) 7 (7–7) 0.176b
Dependency in P-ADL, n (%) 7 (10) 7 (12) 0 (0) 0.205a
SAPS II,median (P25–75) 24(15–37) 29(21–39) 7(0–13) <0.001b
APACHE II, median (IQR) 7(5–11) 8(6–11) 4(3–6) <0.001b
AKI 7 (10) 6 (10) 1(8) 0.833a
Delirium 17(24) 17(29) 0(0) 0.025a
PACU length of stay (minutes), median (IQR) 21 (19–57) 21 (19–57) 31 (20–60) 0.501a
Hospital length of stay (days), median(IQR) 10(7–15) 11(7–16) 8(7–11) 0.034b
Mortality in PACU, n (%) 3(4) 3 (5) 0 (0) 0.421a
Mortality in hospital, n (%) 5 (7) 5 (9) 0 (0) 0.291a
Mortality at 6 months follow-up 13(19) 13(22) 0(0) 0.011a

a Fisher’s exact test, b Mann-Whitney U test, IQR, interquartile range.

RCRI, Revised Cardiac Risk Index I-ADL, Instrumental Activities of Daily Living; P-ADL, Personal Activities of Daily Living; SAPS II, Simplified Acute Physiology Score, APACHE II Acute Physiology & Chronic Health Evaluation PACU, Post Anaesthesia Care Unit; IQR, interquartile range.

Veiga et al.

Veiga et al. BMC Anesthesiology 2013 13:4   doi:10.1186/1471-2253-13-4

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