Correlation of Tumor Response Between Flexible Sigmoidoscopy and Magnetic Resonance Imaging in Patients Undergoing Neoadjuvant Therapy for Locally Advanced Rectal Cancer: A Retrospective Review

被引:0
作者
Rojas, Maria A. [1 ]
Cataneo, Jose [1 ]
Gagnon-Konamna, Marianne [1 ]
Borsuk, Daniel J. [1 ,2 ,3 ]
Jarzabek, Angela J. [1 ]
Marecik, Slawomir J. [1 ,2 ]
Park, John J. [1 ,2 ]
Kochar, Kunal [1 ,2 ]
机构
[1] Advocate Lutheran Gen Hosp, Div Colon & Rectal Surg, 1550 N Northwest Hwy, Park Ridge, IL 60068 USA
[2] Univ Illinois, Div Colon & Rectal Surg, Chicago, IL USA
[3] Rosalind Franklin Univ Med & Sci, Chicago Med Sch, N Chicago, IL USA
关键词
cancer; colorectal; endoscopy; MRI; CLINICAL COMPLETE RESPONSE; CHEMORADIOTHERAPY; CHEMORADIATION; CHEMOTHERAPY; ACCURACY; MRI;
D O I
10.1177/00031348221105575
中图分类号
R61 [外科手术学];
学科分类号
摘要
Background The National Accreditation Program for Rectal Cancer recommends a pelvic MRI to assess the response to neoadjuvant therapy for advanced rectal cancers. However, there is no single restaging modality that can identify all patients with complete tumor response. At our institution, we perform both a pelvic MRI and a flexible sigmoidoscopy (FS) after neoadjuvant therapy prior to surgical resection. Objective The objective is to elucidate the correlation of tumor response between FS and MRI in patients undergoing neoadjuvant therapy for locally advanced rectal cancer. Design Single institution from 2010 to 2019. Retrospective cohort study comparing local tumor response on FS to MRI utilizing final pathology as the gold standard for comparison. Patients Patients with confirmed locally advanced rectal adenocarcinoma (stage II or III) who underwent neoadjuvant therapy prior to surgical intervention and underwent flexible endoscopy and a standardized rectal cancer protocol MRI to evaluate tumor response. Results A total of 48 patients were evaluated. Seven (14%) patients had a complete pathological response. MRI adequately reported 1 (14%), while FS found 4 (57.14%) out of the 7 complete responders. Nevertheless, this did not reach statistical significance (P = .06). On logistic regression analysis, flexible sigmoidoscopy had a 5.5 higher likelihood to report an accurate complete response (OR 5.5, 95% CI: 1.02-29.64; P = .047). Conclusions Flexible sigmoidoscopy should be used in conjunction with MRI in the work up of patients who have received neoadjuvant therapy for advanced rectal cancer prior to surgical resection.
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页码:2595 / 2599
页数:5
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