Publications by authors named "Junichiro Harada"
Background/aim: Gastric cancer with gastric outlet obstruction (GOO) is generally found at an advanced stage and with an unfavorable prognosis. This study was performed to examine the prevalence of radiologically occult peritoneal carcinomatosis in GOO and determine the optimal treatment strategy.
Patients And Methods: This single-center study was a retrospective review of the clinical data of 186 patients with locally advanced gastric cancer at the distal stomach who underwent surgery from 2008 to 2016.
Background: Postoperative intra-abdominal infection is known to adversely affect survival outcomes in patients with gastric cancer; however, previous reports have investigated this complication only in open surgery. This adverse effect is expected to be weakened by less invasive surgery, such as a laparoscopic approach, by way of maintaining immune function.
Methods: This study included 1223 patients with gastric cancer who underwent open (n = 439) or laparoscopic (n = 784) curative surgery between 2010 and 2015.
Aim: A hiatal hernia (HH) complicates the diagnosis and surgical treatment of gastroesophageal junction (GEJ) cancer. This study aimed to investigate the effect of HH on the survival outcomes of GEJ cancer patients.
Methods: This single-center study reviewed clinical data of 78 patients with GEJ adenocarcinoma who underwent R0 resection from 2008 to 2017.
Article Synopsis
- The study examines the safety and quality of life outcomes of laparoscopic proximal gastrectomy with double-tract reconstruction (LPG-DT) for patients with cancer in the upper stomach or esophagogastric junction.
- Data from 289 patients who underwent either LPG-DT or laparoscopic total gastrectomy with Roux-en-Y reconstruction were analyzed, focusing on surgical outcomes, nutritional changes, and quality of life over two years.
- Findings indicate that LPG-DT is a safe procedure with comparable operative times and complications, and it may have slightly better nutritional and quality of life outcomes compared to total gastrectomy.
Background And Objectives: Proximal advanced gastric cancer that invades the greater curvature is often treated by prophylactic splenectomy because of a risk for metastasis to the splenic hilar lymph node (station No.10). We evaluated whether laparoscopic spleen-preserving splenic hilar dissection (SPSHD) could be a better approach.
View Article and Find Full Text PDFIntroduction: Total gastrectomy with splenectomy (TGS) is sometimes performed for treatment of locally advanced gastric cancer invading the greater curvature because metastasis to splenic hilar nodes is expected. Despite the widespread use of laparoscopic procedures, the feasibility of laparoscopic TGS (LTGS) has been scarcely reported because of its technical difficulties.
Methods: This retrospective single-institutional study included 93 consecutive patients with proximal advanced gastric cancer who underwent either LTGS or open TGS (OTGS) from 2010 to 2018.
Introduction: Laparoscopic surgery is a minimally invasive surgery; however, obstacles to its functional optimization remain. Surgical ports can accommodate only one instrument at a time so complex exchange manipulations are necessary during surgery which increases operation times and patient risk. We developed a new laparoscopic instrument that functions as both forceps and a suction tube, which renders intraoperative tool exchange unnecessary.
View Article and Find Full Text PDFArticle Synopsis
- - The study compares two methods of delta-shaped anastomosis (DA) used in laparoscopic distal gastrectomy—original (org-DA) and modified (mod-DA)—to assess their safety and outcomes in 507 patients from 2010 to 2018.
- - Both methods had similar rates of complications, with org-DA showing slightly higher rates of anastomotic stricture and leakage, while one year post-surgery, mod-DA patients experienced better nutritional outcomes with less food residue and residual gastritis.
- - The results suggest that the modified DA method not only maintains a comparable safety profile to the original DA but also enhances postoperative recovery by improving anatomical function.
A follow-up endoscopy in a 71-year-old Japanese man who had undergone a left lateral segmentectomy for HCC two years ago revealed an approximately 2 cm in diameter pedunculated polypoid mass in the middle part of the thoracic esophagus. Immunohistochemical staining of the endoscopic biopsy revealed a metastatic HCC esophageal tumor. As the patient's disease could be radically removed by preoperative examinations, we resected the metastatic esophageal tumor via right thoracotomy and esophagogastrostomy reconstruction.
View Article and Find Full Text PDFHepatic epithelioid hemangioendothelioma (HEH) is a rare tumor. We report on a patient who underwent hepatectomy for malignant HEH associated with abdominal pain due to rapid progression. An 83-year-old man was admitted to Nippon Medical School Hospital because of acute, severe upper abdominal pain.
View Article and Find Full Text PDF