Publications by authors named "Takeyoshi Nishiyama"

Background: Pancreatectomies combined with arterial resection can be indicated for pancreatic cancer. In a pancreatectomy with arterial resection, intraoperative confirmation of blood flow through reconstructed vessels is crucial. This study highlights the usefulness of SPY laser fluorescence imaging during a pancreatoduodenectomy with common hepatic artery resection (PD-CHAR).

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Aim: Although hepatectomy is a complex surgical procedure, its incidence among older patients has increased due to global aging. However, few studies have focused on the association between age and failure to rescue (FTR) posthepatectomy. This study aimed to investigate the association between age and FTR and develop a risk model for FTR following hepatectomy.

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: A difficulty scoring system was developed to estimate the surgical outcomes of laparoscopic liver surgery (LLS); however, the effect of the liver transection area (LTA) on LLS outcomes have not been previously examined. Therefore, this study investigated the predictive significance of the LTA for LLS. : This retrospective study included 106 patients who underwent LLS in our hospital between January 2012 and December 2023.

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Background: The superior mesenteric artery (SMA)-first approach for pancreatic cancer (PC) is common surgical technique in pancreaticoduodenectomy. To date, few studies have reported SMA-first approach in robot-assisted pancreaticoduodenectomy (RPD). Herein, we present the anterior SMA-first approach for PC during RPD.

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Background: There are several reports on the safety and feasibility of pancreatoduodenectomy (PD) without reconstruction of the small remnant pancreas. However, a few studies have explored central pancreatectomy (CP) for non-reconstructed small remnant pancreases after PD. This study presents a case of CP without pancreatic reconstruction after PD.

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Article Synopsis
  • A 20-year-old woman was admitted to the hospital with abdominal pain, and imaging showed multiple masses in her upper jejunum suspected to be lipomas.
  • She underwent partial resection of the small intestine on the same day due to a blockage caused by these masses.
  • Pathological analysis confirmed the masses as multiple muco-submucosal elongated polyps (MSEP), a non-neoplastic type that can occur throughout the intestinal tract, suggesting a rare case that could enhance understanding of intussusception causes.
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Article Synopsis
  • Chronic expanding hematomas (CEHs) are blood collections that grow slowly over months, usually found in limbs but rarely in organs like the liver.* -
  • A case study of a 57-year-old woman revealed a large cyst in her liver, which turned out to be a CEH after surgery, despite initial concerns about possible cancerous conditions.* -
  • Although uncommon, healthcare professionals should keep CEH in mind when evaluating slow-growing liver masses that exhibit specific imaging patterns.*
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We analyzed the clinicopathological characteristics of six patients with duodenal gastrointestinal stromal tumor (dGIST) resected in our hospital between 2005 and 2020. The patients (5 males, 1 female) were aged from 43 to 83 years old (mean: 63.7 years old).

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