Studies examining treatment delay and survival after surgical treatment of colon cancer have varied in quality and outcome, with little evidence available regarding the safety of longer surgical treatment wait times.
Dr Muriel Brackstone examined the effect of surgical treatment wait times on survival for patients with stage I to III colon cancer.
The research team performed a subset cohort analysis using data from a prospectively maintained database.
The study was conducted at a tertiary referral center.
Data on all of the patients undergoing elective surgery for stage I to III colon cancer from 2006 to 2015 were collected from a prospectively maintained clinical and administrative database.
|Treatment delay of >30 days was not associated with decreased disease-free survival|
|Diseases of the Colon & Rectum|
The team examined the impact of prolonged wait time to surgery on disease-free and overall survival.
Patients were divided into 2 groups based on a treatment wait time of ≤30 or >30 days and were compared using a Cox proportional hazards model.
A subgroup analysis was performed using alternative treatment delay cutoffs of 60 and 90 days.
There were 908 patients with stage I to III colon cancer treated over the study period, with a median treatment wait time of 38 days.
The researchers reported that 368 patients were treated within 30 days, and 540 were treated beyond 30 days from diagnosis.
The team found that treatment delay of >30 days was not associated with decreased disease-free survival or overall survival.
Likewise, subgroup analysis using alternative treatment delay cutoffs of 60 and 90 days did not demonstrate an adverse effect on survival.
Dr Brackstone's team concludes, "Despite longer median treatment wait times from diagnosis to surgery, with the majority of patients exceeding 30 days and many experiencing delays of 2 to 3 months, no adverse impact on survival was observed."
"Patients who require additional consultations or investigations preoperatively may safely have their surgery moderately delayed to minimize their perioperative risk without any evidence that this will compromise treatment outcomes."