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Table 4 The Risk Factors of recurrent hepaticojejunostomy anastomotic stricture after endoscopic balloon dilatation

From: Endoscopic balloon dilatation for benign hepaticojejunostomy anastomotic stricture using short double-balloon enteroscopy in patients with a prior Whipple’s procedure: a retrospective study

     Recurence Univariate analysis Multivariate analysis
    All (+) (−) HR 95% CI P value HR 95% CI P value
Patient’s factors Sex male 25 11 14 2.08 (0.92–4.75) 0.076 2.00 (0.86–4.77) 0.108
   female 17 13 4       
  Age (years) 65 30 18 12 0.65 (0.24–1.57) 0.356    
   < 65 12 6 6       
Preoperative factors BMI 25 23 13 10 1.39 (0.61–3.13) 0.427    
   < 25 19 11 8       
  Diameter of common bile duct (mm) 7 27 12 15 1.81 (0.80–4.11) 0.150 1.62 (0.67–3.90) 0.276
   < 7 15 12 3       
  CRP (mg/dl) 1.00 15 9 6 0.96 (0.42–2.29) 0.919    
   < 1.00 27 15 12       
Pre-endoscopic treatment factors Intrahepatic bile duct stones (+) 9 3 6 1.91 (0.65–8.12) 0.260    
   (−) 33 21 12       
  Cholangitis (+) 24 14 10 1.23 (0.52–2.81) 0.623    
   (−) 18 10 8       
  Serum albumin level (normal 3.5 mg/dl) 3.5 13 6 7 1.06 (0.44–2.96) 0.896    
   < 3.5 29 18 11       
  Earlier stricture after operation (< 1 year) (+) 20 15 5 2.32 (1.03–5.56) 0.043 1.72 (0.72–4.31) 0.226
   (−) 22 9 13       
  Biliary anastomotic leakage after operation (+) 1 1 0 9.74 (0.50–65.9) 0.107 13.2 (0.62–107) 0.084
   (−) 41 23 18       
  Pancreatic fistulae after operation (+) 20 10 10 0.74 (0.32–1.66) 0.469    
   (−) 22 14 8       
Factors during endoscopic treatment Remaining balloon waste during inflation (+) 4 3 1 0.49 (0.17–2.11) 0.301    
   (−) 38 21 17       
  Endoscopic biliary stone extraction (+) 11 4 7 1.82 (0.68–6.30) 0.246    
   (−) 31 20 11       
  1. HR hazard ratio, CI confidence interval, BMI body mass index, CRP C-reactive protein