Transanal Decompression Tube Versus Stent for Acute Malignant Left-sided Colonic and Rectal Obstruction
Transanal Decompression Tube Versus Stent for Acute Malignant Left-sided Colonic and Rectal Obstruction
The purpose of this study is to compare the clinical outcomes of transanal decompression tube
 as a bridge to surgery with stent as a bridge to surgery for acute malignant left-sided
 colonic and rectal obstruction.
Approximately 8-47 % of patients with colorectal cancer will present with colonic
 obstruction. Left-sided colonic and rectal cancer is responsible for nearly 70% of acute
 colonic obstruction. Emergency colonic surgery for acute obstruction is associated with a
 higher mortality and morbidity rate than elective surgery. Preoperative decompression results
 in a less dilated bowel that is more amenable to an elective surgery. Both transanal
 decompression tube and stent can serve a good preoperative decompression effect and serve a
 good bridge to surgery. Investigators aim to compare the clinical outcomes of transanal
 decompression tube as a bridge to surgery with stent as a bridge to surgery for acute
 malignant left-sided colonic and rectal obstruction.
Inclusion Criteria:

 1. definite diagnosis of left-side colonic or rectal obstruction;

 2. symptomatic colonic obstruction for less than 1 week;

 3. colonic obstruction caused by a histologically proven malignant colonic tumor

 Exclusion Criteria:

 1. suspected benign colonic or rectal obstruction;

 2. right-side colonic obstruction;

 3. patients with signs of peritonitis;

 4. dysfunction of blood coagulation, active bleeding, active infection, and significant
 cardiac or pulmonary disease;

 5. patients who do not want to undergo surgery.