Kazuhiko Kitaguchi

A Resected Case of Intraductal Tubulopapillary Neoplasm of the Pancreas: Report of a Case

The patient was a 61-year-old male who was referred to our hospital after dilatation of the main pancreatic duct was detected by screening ultrasonography. Computed tomography revealed a protruding lesion measuring 15 mm in diameter within the main pancreatic duct in the head of the pancreas, and magnetic resonance cholangiopancreatography revealed interruption of the duct at the tumor site. We performed pancreaticoduodenectomy under a suspected diagnosis of invasive ductal carcinoma. Gross examination of the resected specimen showed that the tumor invaginated into the main pancreatic duct, and no mucin was found. Histological examination revealed proliferation of high-grade dysplastic cells in a tubulopapillary growth pattern. Immunohistochemically, cytokeratin 7 expression was detected, but not trypsin expression. Based on these morphological features, we diagnosed the tumor as intraductal tubulopapillary neoplasm (ITPN). We report the case with bibliographic consideration, together with a review of intraductal neoplasms of the pancreas encountered at our institution.

Intraoperative circulatory management using the FloTrac™ system in laparoscopic liver resection.

Several studies have shown that maintenance of the central venous pressure at a low level during liver surgery is effective for intraoperative management. However, others have suggested that stroke volume variation (SVV) may be a better predictor of fluid responsiveness than central venous pressure. The purpose of this study is to conduct a new type of circulatory management using the FloTracTM system in laparoscopic liver resection and to evaluate specific fluctuations in SVV.

Near-infrared intraoperative imaging of pancreatic neuroendocrine tumors: a new era in laparoscopic pancreatic surgery

It is evident that safe complete resection of the target tumor without excess or deficiency is the most important object in the oncological surgery, besides this is particularly true in the laparoscopic surgery for pancreatic neuroendocrine tumors (PanNETs).

A comparative study of intraoperative fluid management using stroke volume variation in liver resection

Objective: The aim of this study is to examine whether intraoperative fluid management with stroke volume variation (SVV) can achieve safe intravenous fluid restriction and contribute to decreasing...