Publications by authors named "Kazuyoshi Nakatani"
Introduction: Nonspecific small bowel ulcers are rare and there have been limited reports. We applied laparoscopic surgery successfully for the perforation caused by this disease of jejunum.
Presentation Of Case: A 70-year-old man visited to our hospital with complaint of abdominal pain and fever.
Introduction: Intestinal malrotation is a congenital anomaly, and its occurrence in adults is rare. Colon cancer with intestinal malrotation is far more rare. We herein report two cases of colon cancer with intestinal malrotation treated with laparoscopic surgery and reviewed the literatures in Japan.
View Article and Find Full Text PDFPurpose: We aimed to assess the safety and efficacy of fondaparinux (FPNX) for patients undergoing laparoscopic colorectal surgery (LAC).
Methods: Patients scheduled for LAC received once-daily subcutaneous injections of FPNX 1.5-2.
Introduction: Anorectal amelanotic melanoma (AAMM) is a rare disease with poor prognosis. A standard treatment strategy for AAMM has not been established.
Presentation Of Case: We report a case of successful treatment of AAMM with nivolumab.
Background: We investigated the efficacy and prognosis of neoadjuvant chemoradiotherapy (NACRT) for Japanese locally advanced rectal carcinoma patients.
Methods: Fifty-seven patients diagnosed with cT3-4 or any cT/cN+ disease using enhanced computed tomography or magnetic resonance imaging from 2002 to 2014 were enrolled. The male/female ratio was 42/15, and the median age was 67 years.
Background: The aim of this study was to evaluate the safety and validity of laparoscopic colorectal surgery for elderly patients. We compared the short and long-term postoperative outcomes of laparoscopic colorectal surgery in patients aged ≥75 years (elderly patients; EP) and <75 years (relatively younger patients; RP).
Methods: Clinicopathological data and short- and long-term outcomes after laparoscopic surgery for colorectal cancer were compared between the EP (n = 53) and RP groups (n = 155).
We report a case of adenosquamous carcinoma of the colon. A 70-year-old woman underwent a colonoscopic examination because of a positive fecal occult blood test. Colonoscopy demonstrated a type 2 tumor of the ascending colon, and a biopsy specimen showed poorly-moderately differentiated tubular adenocarcinoma.
View Article and Find Full Text PDFIntroduction: Low-grade mucinous neoplasia is an uncommon benign tumor that develops in the appendix. The development of mucocele disease has never been reported in a colonic diverticulum. We present a case developing low-grade mucinous neoplasia in a cecal diverticulum.
View Article and Find Full Text PDFThis study assessed whether a flexible-tip laparoscope improves operative outcomes including operative length while performing single-incision laparoscopic cholecystectomy (SILC) compared with the use of a conventional straight laparoscope. The flexible-tip laparoscope decreased the operative time compared with the straight laparoscope. Although SILC has potential benefits, surgeons experience problems for in-line viewing through a laparoscope and from contact of instruments with the laparoscope, resulting in longer operative times and the need for additional ports.
View Article and Find Full Text PDFArticle Synopsis
- A 74-year-old woman was referred for colonography due to stool occult blood, leading to the discovery of a 3 cm submucosal tumor in her sigmoid colon via colonoscopy.
- Endoscopic ultrasonography suggested it might be a gastrointestinal stromal, myogenic, or neurogenic tumor, prompting a laparoscopic sigmoidectomy with D2 lymph node dissection.
- The tumor was confirmed as a benign schwannoma through immunostaining, and the laparoscopic approach with fewer ports was highlighted as advantageous for cosmetic outcomes and less postoperative pain compared to traditional methods.