김남규 교수

PURPOSE: The preoperative assessment of rectal cancer wall invasion and regional lymph node metastasis is essential for the planning of optimal therapy. This study was done to determine the accuracy and clinical usefulness of transrectal ultrasonography, pelvic computed tomography, and magnetic resonance imaging in preoperative staging. METHODS: A total of 89 patients with rectal cancer were examined with transrectal ultrasonography (n = 89), pelvic computed tomography (n = 69), and magnetic res

PURPOSE: Total mesorectal excision with pelvic autonomic nerve preservation has been reported to be an optimal surgery for rectal cancer. It minimizes local recurrence and sexual and urinary dysfunction. The aim of this study was to assess the safety of total mesorectal excision with pelvic autonomic nerve preservation in terms of voiding and sexual function in males with rectal cancer. METHODS: We performed urine flowmetry using Urodyn and a standard questionnaire using the International Index

A reduction in the number of linear stapler firings is necessary to avoid anastomotic leakage after laparoscopic colorectal anastomosis with a double stapling technique. We recommend that a diverting ileostomy is mandatory in patients with middle and lower rectal cancer where multiple linear staplers were used.

BACKGROUND: Colorectal cancer (CRC) screening can effectively reduce disease-related mortality by detecting CRC at earlier stages. We have previously demonstrated that the presence of SDC2 methylation in stool DNA is significantly associated with the occurrence of CRC regardless of clinical stage. The aim of this study was to evaluate the clinical performance of stool DNA-based SDC2 methylation test for CRC. METHODS: Aberrant SDC2 methylation in stool-derived DNA was measured by linear target en

Pathologic complete remission showed excellent oncologic outcomes, and the pathologic N stage was the most important factor for oncologic outcomes.

BACKGROUND: Self-expanding metallic stents (SEMS) have been used as a bridge to surgery in patients with obstruction by colorectal cancer, but the oncologic safety of this technique has not yet been established. The aim of the present study was to compare the outcomes of bridge to surgery after SEMS insertion and nonobstructing elective surgery. METHODS: Between October 1999 and July 2007, 35 patients who had left-sided colon malignancy obstruction and underwent surgical resection after SEMS ins

The true benefits of robotic surgery are controversial, and whether robotic total mesorectal excision (R-TME) can be justified as a standard treatment for rectal cancer patients needs to be clarified. This case-matched study aimed to compare the postoperative complications and short- and long-term outcomes of R-TME and laparoscopic TME (L-TME) for rectal cancer.Among 1029 patients, we identified 278 rectal cancer patients who underwent R-TME. Propensity score matching was used to match this grou

BACKGROUND AND OBJECTIVES: Isolated paraaortic lymph-node recurrence (IPLR) after curative surgery for colorectal carcinoma is rare and no previous report has specifically addressed this type of recurrence. We investigated the clinical features of IPLR and analyzed prognostic factors. METHODS: Of 2,916 patients who underwent curative surgery for colorectal carcinoma, IPLR was identified in 38 patients (1.3%). The clinical features and prognostic factors of these patients were analyzed. RESULTS: