Roel Bogie

Thermal ablation of mucosal defect margins to prevent local recurrence of large colorectal polyps: A systematic review and meta-analysis

Table 6.1: (continuation)

P value

Size in mm (mean±SD or median+IQR)

Proximal location

Type of ablative therapy (settings)

Follow-up interval

Outcome – local recurrence Intervention group

Control group 2/11 (18.2%) 7/11 (63.6%)

34 (±13) 26 (±10) 28 (±11) 41 (±13)

43% APC 60W

3 and 12 months 3 and 12 months 6 months 3, 6 and 12 months

2/10 (20%) 1/10 (10%)

NR

Gasflow 2.0L/min

62% APC

0.02

45-55W right, 65W left colon Gasflow 2.0L/min

82% STSC 20-80W

7/60 (12%)

18/60 (30%) 8/50 (16%)

0.01

6

Soft coag mode

16% STSC 20W

7/51 (13.7%)

0.34

Soft coag mode APC 50W right, 70W left Gasflow 1.5L/min

30 (IQR 25-45)

52% STSC 80W

6 and 18 months

10/192 (5.2%)

37/176 (21.0%)

<0.001

Soft coag mode Erbe effect 4

22 (±10) #

NR STSC 80W

3-12 months

8/171 (4.8%)

3/5 (60%)

0.002

Soft coag mode Erbe effect 4

35 (IQR 30-45)

80% APC 30-35W

6 and 18 months

11/246 (4.5%)

NA

NA

Gasflow 0.8L/min

40 (IQR 30-60)

NA STSC 80W

6 months

0/30 (0%) 3/51 (5.9%)

12/48 (25%) 28/160 (17.5%)

0.002 0.041

Soft coag mode Erbe effect 4

35 (IQR 30-50)

72% STSC 80W

6 months

2/336 (0.6%) 82/481 (17.0%)

<0.001

Soft coag mode Erbe effect 4

35 (IQR 25-45)

54% STSC 80W

6 months

10/707 (1.4%)

NA

NA

Soft coag mode Erbe effect 4

115