RT Journal Article SR Electronic T1 Total neoadjuvant therapy for rectal cancer: a guide for surgeons JF Canadian Journal of Surgery JO CAN J SURG FD Canadian Medical Association SP E196 OP E201 DO 10.1503/cjs.005822 VO 66 IS 2 A1 Johnson, Garrett G.R.J. A1 Park, Jason A1 Helewa, Ramzi M. A1 Goldenberg, Benjamin A. A1 Nashed, Maged A1 Hyun, Eric YR 2023 UL http://canjsurg.ca/content/66/2/E196.abstract AB The modern management of rectal cancers continues to evolve. With the release of data from new landmark randomized controlled trials (RAPIDO, PRODIGE-23), total neoadjuvant therapy (TNT) has moved to the forefront of locally advanced rectal cancer treatment and is considered a standard option in selected patients. Total neoadjuvant therapy promises enhanced systemic disease control, better treatment adherence and less time with an ostomy. However, TNT as currently described encompasses a number of different potential treatment options that differ significantly in terms of their radiation dosage, chemotherapy regimen and order of treatments administered. Being familiar with TNT regimens will be important for rectal cancer surgeons to appropriately advocate for their patients and optimize their outcomes. This article serves as a primer for the general surgeon and offers a pragmatic overview of the indications, realistic expected benefits and potential downsides of each TNT regimen.