Takayuki Nakamoto

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In laparoscopic colorectal cancer (Lap-CRC) surgery, determination of a suitable mesentery division line and the appropriate degree of lymphadenectomy by tracing the blood supply is critical. We performed visualization of the lymph and blood flow by laparoscopic indocyanine green (ICG) fluorescence imaging (Lap-IGFI). ICG is injected into the submucosa near(More)
AIM To evaluate the technical feasibility of laparoscopic lateral pelvic lymph node dissection (LPLD) following total mesorectal excision (TME) as prophylaxis for patients with advanced lower rectal cancer but no radiologic evidence of lymph node involvement. PATIENTS AND METHODS TME was performed on 30 patients with cT3N1-2M0 lower rectal cancer. LPLD(More)
Endoscopic submucosal dissection involves dissecting manipulation performed with tumors in an exposed condition for a long period of time. Thus, there is a risk for implantation of tumor cells. The objectives of this study were to examine exfoliated tumor cells after colorectal endoscopic submucosal dissection and to elucidate the effectiveness of(More)
We report a case of local recurrence of cancer after rectal endoscopic submucosal dissection (ESD). A 52-year-old male underwent a curative resection with ESD for rectal intramucosal cancer. Seventy-four months after ESD, surveillance colonoscopy showed an elevated lesion on the ESD scar, suspicious of a recurrence. The patient subsequently underwent a low(More)
BACKGROUND Herpesvirus entry mediator (HVEM) has been recently suggested to play certain roles in cancer biology. We examined HVEM expression in human colorectal cancer (CRC) to reveal its clinical importance. MATERIALS AND METHODS Immunohistochemical staining was carried-out in normal epithelium, benign and malignant lesions. RESULTS While intense HVEM(More)
BACKGROUND The prevalence of inflammatory bowel disease (IBD) is increasing. Since patients usually need long-term treatment and suffer from reduced quality of life, there is a need to develop new therapeutic strategy. The aim of this study was to investigate the therapeutic potential of erythropoietin (EPO) for the treatment of IBD. METHODS Murine(More)
Endoscopic submucosal dissection (ESD) involves dissection of tumors and manipulation of them in an exposed condition for prolonged periods. A large number of tumor cells are exfoliated into the intestinal lumen after colorectal ESD. The aim of this study was to determine whether lavage volume has an influence on tumor cell clearance after colorectal ESD.(More)
OBJECTIVE The aim of this study was to evaluate the outcomes of patients who underwent extensive pelvic surgery for locally advanced primary or recurrent non-colorectal pelvic malignancies. PATIENTS AND METHODS We performed a retrospective review of the medical records of 19 patients with non-colorectal pelvic malignancies who underwent extensive surgery(More)
Radical surgery is often necessary in patients with local recurrence of rectal cancer or in those with carcinoma associated with an anal fistula. The surgery may include extended excision of the perineal area and can create a large dead space in the pelvis and a large skin defect, often necessitating reconstruction of the pelvic floor using rectus abdominis(More)
PURPOSE The purpose of this study was to evaluate the clinicopathological features of mucinous adenocarcinoma associated with perianal fistulas (MAF), to assess the importance of preoperative MRI analysis, and to determine the optimal surgery. METHODS We performed a retrospective analysis of the data from seven patients with MAF treated at our hospital(More)