Skip to main content
. 2017 Sep 12;5(9):E839–E846. doi: 10.1055/s-0043-113566

Table 4. Intraoperative predictors of a difficult endoscopic submucosal dissection (n = 130 patients).

Colon Rectum
Univariate analysis OR (95 %CI) Multivariate analysis OR (95 %CI) Univariate analysis OR (95 %CI)
Bleeding frequency

  • Low

 1 1

  • High

 0.77 (0.13 – 4.39) – 1.63 (0.23 – 11.46)
Scope control

  • Direct

 1 1

  • Paradoxical

 1.65 (0.50 – 5.49) – 1.00 (0.06 – 17.62)
Lesion lifting

  • Good

 1 1

  • Poor

 6.32 (1.24 – 32.04) – N/A
Submucosal approach

  • Tangential

 1 1

  • Perpendicular

 6.65 (2.35 – 18.76)  5.16 (1.07 – 25.03) 0.73 (0.15 – 3.49)
Gravity countertraction

  • Good

 1 1

  • Ineffective

 3.45 (1.35 – 8.85) 12.29 (2.43 – 62.08) N/A
Submucosal fibrosis

  • F0

 1 1

  • F1

 1.41 (0.53 – 3.76)  0.89 (0.16 – 4.83) 1.36 (0.37 – 5.00)

  • F2

 6.12 (1.52 – 24.60) 21.87 (2.11 – 225.64) N/A

OR, odds ratio; CI, confidence interval; N/A, not applicable.