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Table 4 Outcome of studies using the FTRD device

From: Endoscopic full-thickness resection using an over-the-scope device for treatment of recurrent / residual colorectal neoplasia: a single-center case series

Study, year (n) Lesions (n) Technical feasibility Full thickness R0 Emergency surgery
Richter-Schrag, 2016 [17] 20 recurrence (9)
non-lifting (3)
T1 Carcinoma (6)
NET (2)
75% 80% 80% 5%
Schmidt, 2018 [15] 181 recurrence (72)
non-lifting (32)
T1 Carcinoma (15)
SET (23)
difficult locationa (39)
89,5% 76,9% 76,9% 2,2%
Valli, 2018 [18] 60 recurrence (29)
T1 Carcinoma (6)
SET (5)
difficult location (5)
otherb (15)
88% 88,8% 79% 2,0%
Vitali, 2018 [16] 13 recurrence (4)
non-lifting (7)
NET (1)
difficult location (1)
100% n.a. 83,3% 0,0%
Andrisani, 2019 [19] 110 recurrence (65)
non-lifting (12)
T1 Carcinoma (16)
SET (10)
difficult location (4)
other (3)
94,4% 91,0% 92% n.a.
This study 30 recurrence (30) 93,3% 80,0%/
85,7%
80,0%/ 85,7% 3,3%/
3,6%c
  1. aDifficult location: e.g. at the appendix or a diverticulum
  2. bOther: e.g. in addition to piecemeal resection; after resection of malignant polyp
  3. cData for R0 resection and emergency surgery given as intent to treat / per protocol, respectively.