Figures (4)  Tables (2)

    • Figure 1. 

      Flowchart of patients with lesions enrolled in this study.

    • Figure 2. 

      Representative abdominal X-ray image, which shows clips remaining in the proper position in the stomach.

    • Figure 3. 

      A schematic illustration depicting the preparations for the SCCT. a, b Moving the stopper forward to the top of the loop. c Releasing the loop from the ligation device and widening the loop tail sufficiently. d Putting the loop directly into the outer sheath. The modified loop is stored in the outer sheath.

    • Figure 4. 

      A schematic illustration of the SCCT. a Dropping the tail of the loop. b Fixing the loop to the mucosa surrounding the ulcer by clips. c, d Catching the tail of the loop with the ligation device. e, f Closing the loop tightly.

    • Age, years 65 (range 36–81)
      Males/females 12/13
      Ulcer location, n casesa
        Stomach (upper) 8 (1/7/0)
        Stomach (middle) 6 (0/6/0)
        Stomach (lower) 5 (3/2/0)
        Duodenum 1 (0/0/1)
        Colon (ascending) 1 (1/0/0)
        Colon (transverse) 2 (2/0/0)
        Colon (descending) 1 (1/0/0)
        Rectum 1 (1/0/0)
      Type of treatment, n cases
        ESD 9
        MIAB 15
        EMR 1
      Median diameter of ulcer, mm 20 (range 10–40)
        ESD 26 (range 15–40)
        MIAB 15 (range 10–40)
        EMR 10
      a Total (ESD/MIAB/EMR).

      Table 1. 

      Characteristics of the patients enrolled in this study

    • Technical success rate (complete closure) 100% (25/25)
      Procedure time, min 16 (5–49)
      Number of clips 8 (5–12)
      Complication rate 0% (0/25)
      Clinical success on day 1 100% (19/19)
      Clinical success on day 5 100% (9/9)
      Severe stenosis 0% (0/0)

      Table 2. 

      Efficacy and safety of the modified single-channel endoscopic closure technique