Postoperative TEM complications for the treatment of rectal neoplasia are frequent but mild: risk factors and time behavior study
Postoperative TEM complications for the treatment of rectal neoplasia are frequent but mild: risk factors and time behavior study
Marques C.F.1, Nahas, C.S.1, Bustamante-Lopez, L.A.1, Ribeiro Jr, U.1, Pinto, R.A.1, Nahas, S.C.1
1Hospital das Clínicas da Faculdade de Medicina da USP, Instituto do Câncer do Estado de São Paulo, São Paulo, Brazil
Marques C.F.1, Nahas, C.S.1, Bustamante-Lopez, L.A.1, Ribeiro Jr, U.1, Pinto, R.A.1, Nahas, S.C.1
1Hospital das Clínicas da Faculdade de Medicina da USP, Instituto do Câncer do Estado de São Paulo, São Paulo, Brazil
Introduction: In 1983, Buess et al introduced a novel surgical approach for the resection of large rectal adenomas: namely transanal endoscopic microsurgery (TEM). Since its introduction, many centers have adopted TEM as the new standard surgical approach to treating both large rectal adenomas and early rectal cancer.
Objective: To evaluate risk factors associated with postoperative complications after TEM local resection for rectal neoplasia.
Methods: All patients were treated using a TEO© device and harmonic scalpel according to the Buess technique. We prospectively collected demographic and tumor characteristics and information on complications using the Clavien–Dindo classification.
Results: Fifty-three patients were treated. There was no mortality. Overall morbidity rate was 50%. Patients with lesions under the fi rst rectal valve had more complications than those with higher ones (P = 0.034). Patients submitted to neoadjuvant chemoradiotherapy (CRT) had 24 times more chance of presenting grade II complications (P = 0.002), and 7.03 times more chance of grade III complications (P = 0.098). When the defect was treated using the TEM device to perform or help with the rectal suture there was a 16-fold lower chance of having grade III complications (P =
0.043). There was no specifi c time behavior of complications.
Conclusions: TEM postoperative complications are acceptable and usually self-limited. Patients submitted to neoadjuvant CRT, with distal lesions, and submitted to conventional suture warrant greater attention. There did not appear to be any time behavior of complications.
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