Gastroenterology Research, ISSN 1918-2805 print, 1918-2813 online, Open Access
Article copyright, the authors; Journal compilation copyright, Gastroenterol Res and Elmer Press Inc
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Original Article

Volume 3, Number 5, October 2010, pages 201-206

Techniques and Outcomes of Endoscopic Decompression Using Transanal Drainage Tube Placement for Acute Left-sided Colorectal Obstruction


Figure 1.
Figure 1. (A) Abdominal CT showing sigmoid carcinoma and the dilated colon; (B) Sigmoid carcinoma showing the obstructed lumen which can be detected.
Figure 2.
Figure 2. (A) A small-diameter upper endoscope was inserted beyond the obstruction and then the equipped guidewire was introduced; (B) After the endoscope was withdrawn, the guidewire was placed; (C) A transanal drainage tube was placed.


Table 1. Characteristics of 69 Patients Enrolled for Acute Left-sided Colorectal Obstruction
No. (%)
*Except for age, the number of the patient is shown.
Age (mean ± SD)*71 ± 12
Gender (M/F)36/33 (52/48)
  Colorectal carcinoma66 (96)
   Pancreas carcinoma1 (1)
   Postoperative stenosis1 (1)
   Intussusception1 (1)
Obstruction location:
   Sigmoid colon37 (54)
   Rectum20 (29)
   Descending colon12 (17)
Major symptoms:
   Abdominal pain69 (100)
   Constipation69 (100)
   Bloating69 (100)
   Nausea/vomiting60 (87)


Table 2. The Methods of Transanal Drainage Tube Placement Used for 69 Patients Undergoing Urgent Colonoscopy
Obstruction LocationPatient NumberSuccessful ProcedureProcedure Time (min)Method A
Method B
Method C
Procedure time (min) is shown as mean ± SD.
GW, guidewire; TDT, transanal drainage tube; GC, guide catheter; BGW, biliary guidewire; DL, dilator.
*A small-diameter upper endoscope was used.
Rectum2020 (100%)15 ± 61640
Sigmoid colon3532 (91%)33 ± 1218143
Descending colon1212 (100%)27 ± 12912
Sigmoid22 (100%)252*00
6966 (96%)27 ± 1345 (65%)19 (28%)5 (7%)