Publications by authors named "Hiroki Kajioka"

Article Synopsis
  • Celiac axis stenosis (CAS) can complicate surgeries like pancreaticoduodenectomy (PD) by disrupting blood flow to the liver.
  • An 81-year-old woman with pancreatic cancer underwent preoperative endovascular stenting to alleviate severe CAS, followed by chemotherapy and surgery.
  • The approach successfully maintained hepatic blood flow and avoided ischemic complications, highlighting a viable treatment strategy for elderly patients facing similar challenges.
View Article and Find Full Text PDF

In recent years, laparoscopy and endoscopy cooperative surgery(LECS)is reported as the treatment of gastric cancer. We report closed LECS performed for an elderly patient with remnant gastric cancer and gastric cancer in a patient with lung cancer. Case 1 is an 85-year-old male.

View Article and Find Full Text PDF
Article Synopsis
  • This study investigated acute acalculous cholecystitis, focusing on its incidence, treatment options, and patient outcomes.
  • Researchers collected data on 432 patients over a three-year period, revealing that this condition represents 7.04% of all acute cholecystitis cases, with varying severity levels based on the Tokyo guidelines.
  • The findings suggest that laparoscopic cholecystectomy is the most effective treatment, particularly for mild to moderate cases, while severe cases may require immediate surgical intervention.
View Article and Find Full Text PDF
Article Synopsis
  • This study aimed to explore how insulin needs change over time for patients who have undergone liver (hepatectomy) and pancreatic (pancreatectomy) surgeries while being managed by an artificial pancreas (STG-55).
  • Out of 56 patients included, those who had hepatectomies required higher insulin doses and had elevated blood glucose levels during surgery compared to those with pancreatectomies, indicating a greater insulin demand for liver operations, especially early in the process.
  • The findings suggest that insulin needs are significantly influenced by the type of surgery performed, the invasiveness of the procedure, and the specific organ involved, highlighting the importance of predicting insulin requirements to enhance glycemic control
View Article and Find Full Text PDF

The involvement of neutrophil extracellular traps (NETs) in cancer metastasis is being clarified, but the relationship between intrahepatic cholangiocarcinoma (iCCA) and NETs remains unclear. The presence of NETs was verified by multiple fluorescence staining in clinically resected specimens of iCCA. Human neutrophils were co-cultured with iCCA cells to observe NET induction and changes in cellular characteristics.

View Article and Find Full Text PDF

Leiomyomas are benign smooth muscle tumors, and retroperitoneal leiomyomas without coexisting uterine leiomyomas are extremely rare. Mitotically active leiomyomas, which are leiomyomas with increased mitotic activity, are rarely observed in postmenopausal women, except under the influence of exogenous hormones. This report presents a rare case of a retroperitoneal mitotically active leiomyoma in a postmenopausal woman.

View Article and Find Full Text PDF

Background: Liver fibrosis or cirrhosis frequently makes parenchymal transection more difficult, but the difficulty score of laparoscopic liver resection (LLR), including the IWATE criteria, does not include a factor related to liver fibrosis. Therefore, this study aimed to evaluate M2BPGi as a predictor of the difficulty of parenchymal transection and the incidence of postoperative complications in LLR.

Methods: Data from 54 patients who underwent laparoscopic partial liver resection (LLR-P) and 24 patients who underwent laparoscopic anatomical liver resection between 2017 and 2019 in our institution were retrospectively analyzed.

View Article and Find Full Text PDF

Introduction: Spindle cell type undifferentiated carcinoma of the extrahepatic bile duct is extremely rare and has a poor prognosis. However, its pathology is not fully known, yet.

Case Presentation: 76-year-old man with abdominal pain and dark-colored urine was referred to our department.

View Article and Find Full Text PDF

Introduction: Ischemic stomach perforation and bleeding are major complications after distal pancreatectomy with en bloc celiac axis resection (DP-CAR) for locally advanced pancreatic cancer. Although there are some treatment options for ischemic gastric events, we need to discuss the optimal treatment based on the patient's general condition and history.

Case Presentation: A 76-year-old woman with advanced pancreatic cancer underwent DP-CAR with the reconstruction of the common hepatic artery-celiac artery.

View Article and Find Full Text PDF

Background: Peritoneal dissemination often develops in gastric cancer. Tumor-associated macrophages (TAMs) are present in the peritoneal cavity of gastric cancer patients with peritoneal dissemination, facilitating tumor progression. However, the mechanism by which macrophages differentiate into tumor-associated macrophages in the peritoneal cavity is not well understood.

View Article and Find Full Text PDF

Surgery is the only curative treatment option for pancreatic cancer, but patients often develop postoperative recurrence. Surgical invasiveness might be involved in the mechanism of recurrence. The associations among inflammation caused by surgery, neutrophils, and cancer metastasis were investigated.

View Article and Find Full Text PDF

Introduction: A chronic expanding hematoma in the retroperitoneal space is a rare disease with poorly understood pathology, and preoperative diagnosis of such hematomas using conventional methods is sometimes difficult.

Presentation Of Case: A 68-year-old man with a history of slowly progressive abdominal distention was referred to our department for further evaluation. Contrast-enhanced CT revealed a large retroperitoneal tumor of the adrenal gland.

View Article and Find Full Text PDF

A solid tumor consists of cancer and stromal cells, which comprise the tumor microenvironment (TME). Tumor-associated macrophages (TAMs) are usually abundant in the TME, contributing to tumor progression. In cases of peritoneal dissemination of gastric cancer (GC), the contribution of intraperitoneal TAMs remains unclear.

View Article and Find Full Text PDF

Colovesical fistula (CVF) resulting from colon diverticulosis is a comparatively rare disease, and neither the diagnosis nor treatment has been established. Our experience with CVF due to sigmoid diverticulitis over a 9-year period was reviewed to clarify the clinical presentation and diagnostic confirmation. Ten patients with CVF were identified in this period, and chief complaints, laboratory findings, presenting symptoms, diagnostic investigations, and subsequent treatments were reviewed.

View Article and Find Full Text PDF

We herein report the case of an 85-year-old woman presenting with right internal jugular vein candidal thrombophlebitis associated with central venous catheters (CTCVC). The infecting agent was Candida albicans, which caused recurrent candidemia five times in total. Micafungin (MCFG) alone was ineffective; however, the combination of MCFG with fosfluconazole (F-FLCZ) successfully treated the patient without a need for any anticoagulant or surgical therapies.

View Article and Find Full Text PDF