Local recurrence after stenting for obstructing left-sided colonic cancer

Area of Science:

• Colorectal surgery
• Gastroenterology
• Oncology

Background:

• Self-expanding metallic stents (SEMS) offer an alternative to emergency surgery for acute obstructing left-sided colonic cancers.
• The oncological safety of SEMS as a bridge to elective surgery requires thorough evaluation.

Purpose of the Study:

• To compare the long-term oncological outcomes of SEMS as a bridge to surgery versus emergency resection for left-sided colonic cancer.
• To assess recurrence rates, survival, and postoperative outcomes.

Main Methods:

• A prospective cohort study analyzed 105 patients with obstructing left-sided colonic cancer (2006-2012).
• Patients were treated with either SEMS followed by delayed surgery or immediate emergency resection.
• Primary outcomes included local/distant recurrence and overall survival.

Main Results:

• Patients aged 75 years or less treated with SEMS and delayed surgery showed a significantly higher local recurrence rate (32% vs. 8%) compared to emergency resection.
• No significant difference in overall survival was observed between the stenting and emergency surgery groups.
• Secondary outcomes like postoperative complications and stoma rates were also analyzed.

Conclusions:

• Self-expanding metallic stents (SEMS) as a bridge to surgery for left-sided colonic cancer are associated with an increased local recurrence rate.
• While SEMS can avoid emergency surgery, careful consideration of oncological implications is necessary.