AB066. SOH26AB_0420. Short- and long-term outcomes comparing diverting ileostomy to diverting colostomy for obstructive locally advanced rectal cancer: a retrospective cohort study

Globally, the incidence of colon and rectal cancer is fourth and eight respectively. In the past 40 years, the treatment of rectal cancer has evolved with dramatic improvements in rates of local recurrence and disease-free survival. This can be attributed to advancements in surgical techniques, preoperative chemoradiotherapy, and optimising the time for surgery. Rectal cancers can be endoscopically obstructing despite no clinical symptoms. Creation of a defunctioning stoma prior to neoadjuvant treatment and definitive surgical resection can prevent these patients from developing bowel obstruction and subsequent perforation. The formation of an ostomy is not without risks. Complications related to ostomy formation can delay the start of neoadjuvant treatment. Proactive diversion can add complexities to the definitive resection. This study aimed to compare outcomes following ileostomy and colostomy for obstructive rectal cancer.