Functional and Clinical Results of Transanal Endoscopic Microsurgery Combined with Endoscopic Posterior Mesorectum Resection for the Treatment of Patients with T1 Rectal Cancer

摘要

Background Rectum-sparing transanal endoscopic microsurgery (TEM) is a well-established treatment for T1 carcinomas of the rectum. However, it is associated with an increased rate of local recurrence compared with extended resection. In most cases, this failure is linked to the presence of clinically nondetectable metastases in the regional lymph nodes. Endoscopic posterior mesorectal resection (EPMR) makes it possible to remove the relevant lymphatic drainage of the lower third of the rectum in the minimally invasive way, which can help with adequate tumor staging. The study evaluated the influence of combined TEM and EPMR treatment on the anorectal functions of this group of patients.