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Table 1 Patient characteristics at index necrosectomy

From: Open necrosectomy in acute pancreatitis–obsolete or still useful?

 (n = 109)
Age at onset of symptoms, median (IQR), years52 (42–61)
Time from onset of symptoms, median (IQR), days36 (22–59)
 < 28 days from symptom onset40 (36.7%)
Length of stay at intensive care unit, median (IQR), days15 (1–24)
Male sex96 (88.1%)
Co-morbidities
 Heart disease22 (20.2%)
 Pulmonary disease10 (9.2%)
 Mild renal insufficiency4 (3.7%)
 Diabetes11 (10.1%)
 Liver cirrhosis2 (1.8%)
 Chronic pancreatitis3 (2.8%)
 None of the above66 (60.6%)
Etiology
 Alcohol62 (56.9%)
 Biliary25 (22.9%)
 Idiopathic11 (10.1%)
 Other*11 (10.1%)
Preoperative computed tomography
Pancreatic necrosis 
  Not assessable45 (41.3%)
  < 30%31 (28.4%)
  30–50%11 (10.1%)
  > 50%22 (20.2%)
Distant pancreatic necrosis98 (89.9%)
Complex necrosis66 (60.6%)
Disconnected left pancreatic remnant34 (31.2%)
Previous organ failure
 No organ failure32 (29.4%)
 < 48 h organ failure7 (6.4%)
 > 48 h organ failure70 (64.2%)
Previous interventions of necrosis
 Fine-needle aspiration31 (28.4%)
 Percutaneous drainage28 (25.7%)
 Endoscopic drainage§7 (6.4%)
 Surgical drainage||11 (10.1%)
 Drainage duration, median (IQR), days9 (6–14)
CRP, median (IQR)#167 (89–290)
WBC count, median (IQR)#12.6 (9.4–21.3)
Intra-operative findings
 Infected pancreatic necrosis85 (78.0%)
 Disconnected left pancreatic remnant13 (11.9%)
Resection of pancreas during index necrosectomy12 (11.0%)
  1. IQR interquartile range, CRP C-reactive protein, WBC white blood cell
  2. *Other: post-ERCP (6), postoperative (2), post-endoscopic (1), hypertriglyceridemia (1) and drug-induced (1)
  3. Local necrosis around pancreas, distant necrosis also in left/right paracolic gutter and/or retromesenteric area
  4. Necrosis extending to both paracolic gutters or either of the paracolic gutters and the retromesenteric area
  5. §Pseudocyst gastrostomy or transpapillary canalization
  6. ||Surgical canalization of necrosis in patients with existing abdomen treatment
  7. Percutaneous or surgically placed drainage
  8. #Within 24 h of index necrosectomy. CRP expressed as mg/L. WBC count expressed as 1 × 109/L. Two CRP values and one WBC count were not taken 24 h prior to operation, and thus, the last available CRP value and WBC count prior to first necrosectomy, respectively, was used