Publications by authors named "Nakaseko Y"

Background: Primary solitary fibrous tumors (SFTs) of the gallbladder are rare. Here, we report the case of a patient who underwent surgical treatment for a primary SFT originating in the gallbladder.

Case Presentation: A 48-mm gallbladder tumor was detected in a 70-year-old man using abdominal ultrasonography at a primary hospital, and he was subsequently referred to our department.

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  • The study investigates a new packing method to reduce the risk of pseudoaneurysms after pancreaticoduodenectomy, a surgery involving the pancreas and duodenum.
  • In a comparison of 210 patients, 110 had the packing method while 100 did not; results showed no significant difference in pseudoaneurysm occurrences between the two groups.
  • While the packing method did not lower the formation rate of pseudoaneurysms, it may help prevent their rupture and related complications.
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Aim: Metabolic dysfunction-associated steatohepatitis (MASH) is one of the most prevalent liver diseases and is characterized by steatosis and the accumulation of bioactive lipids. This study aims to understand the specific lipid species responsible for the progression of liver fibrosis in MASH.

Methods: Changes in bioactive lipid levels were examined in the livers of MASH mice fed a choline-deficient diet (CDD).

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Background/aim: Symptomatic mediastinal goitre requires surgery and is usually resectable using the cervical approach alone; however, sternotomy is occasionally required. Sternotomy is a highly invasive procedure, and its complications, including mediastinitis and osteomyelitis, can be critical. To date, there have been no reports of non-invasive techniques to avoid sternotomy for mediastinal thyroid tumours.

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Background: This prospective case series analyzed patients who underwent indocyanine green (ICG) fluorescent lymphography during open inguinal hernia repair. The aim of this study was to investigate the association between ICG leakage and postoperative hydroceles in patients who underwent inguinal hernia repair.

Materials And Methods: Data were analyzed from 40 patients who underwent primary open hernia repair between October 2020 and June 2021 (44 cases in total).

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We have previously reported on the effectiveness of colonoscopy-assisted percutaneous sigmoidopexy (CAPS) for sigmoid volvulus treatment. This study describes the CAPS application to treat complete rectal prolapse by straightening and fixing the rectum. Complete rectal prolapse is common in older women.

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Aim: Cachexia is associated with the morbidity and mortality of cancer patients. The cachexia index (CXI) is a novel biomarker of cachexia associated with the prognosis for certain cancers. This study analyzed the relationship between CXI with long-term outcomes of gastric cancer patients.

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  • * The method involves placing the clip to manage hepatic inflow, which was confirmed with intraoperative Doppler ultrasound before performing liver resection.
  • * Results from two patients showed successful surgeries with manageable operation times and minimal blood loss, suggesting that this technique could be both safe and effective.
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Background: The conventional near-infrared fluorescent clip (NIRFC) ZEOCLIP FS® has been used successfully in marking tumour sites during laparoscopic surgeries. However, this clip is difficult to observe with the Firefly imaging system equipped with the da Vinci® surgical system. We have been involved in the modification of ZEOCLIP FS® and development of da Vinci-compatible NIRFC.

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Unlabelled: Intracorporeal esophagojejunostomy after total or proximal robot-assisted gastrectomy is technically more demanding than gastroduodenostomy and gastrojejunostomy for distal gastrectomy, as well as laparoscopic surgery. We have established a safe and simple esophagojejunostomy procedure using a liner stapler attached to the Da Vinci Surgical System and a barbed suture device.

Patients And Methods: For esophagojejunostomy after total gastrectomy or proximal gastrectomy with double-tract reconstruction, we choose the "overlap method," in which entry holes were made at the left of the esophageal stump and at 5 cm of the anal side in antimesentric area of the jejunum, followed by anastomosis on the left of the esophagus using SureForm (blue 45 mm) and hand-sewing closure of the common entry hole with V-Loc.

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Introduction And Importance: Indocyanine green (ICG) fluorescent lymphography is reportedly a safe and effective method to diagnosis of lymphatic leakage. We report a case of a patient who underwent ICG fluorescent lymphography during laparoscopic inguinal hernia repair.

Case Presentation: A 59-year-old man was referred to our department for the treatment of both inguinal hernias, during which laparoscopic ICG lymphography was performed.

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  • False cysts lack a cellular lining and often arise from previous abdominal injuries; however, this case presents a 23-year-old woman with a splenic false cyst despite no history of trauma.
  • Imaging techniques, such as CT scans, MRI, and ultrasound, revealed a cystic lesion with unusual internal structures, contradicting typical splenic false cyst characteristics.
  • Though non-traumatic splenic false cysts are uncommon and exhibit vague clinical signs, the standard treatment approach is surgical removal of the spleen (splenectomy).
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Background/aim: Sorafenib was previously the only targeted therapy for hepatocellular carcinoma (HCC). However, pharmaceutical therapy for HCC has undergone remarkable advances in recent years. Herein, we report cases of unresectable advanced HCC responding to pharmaceutical therapy resulting in improved prognosis through surgical intervention.

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The most common site of traditional serrated adenomas (TSA) is the area from the left colon to the rectum; however, there are few reports on TSA in the small intestine. Herein, we report a case of TSA of the ileum with intussusception that was diagnosed and successfully treated with laparoscopic bowel resection. The patient was a 29-year-old female with the chief complaint of recurrent abdominal pain and vomiting.

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Purpose: The prognostic significance of the cachexia index, a novel biomarker of cancer cachexia, remains unclear in colorectal cancer; we, therefore, evaluated this relationship.

Methods: This retrospective cohort study included 306 patients with stage I-III colorectal cancer who underwent R0 resection between April 2010 and March 2020. The cachexia index was calculated as (skeletal muscle index [cm/m] × serum albumin level [g/dL])/neutrophil-to-lymphocyte ratio.

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  • A man in his 60s with advanced gastric cancer and a history of coronary artery bypass grafting (CABG) was admitted for surgery, needing to preserve his right gastroepiploic artery (RGEA) due to its critical role in cardiac blood flow.
  • The surgical team planned a robot-assisted distal gastrectomy using indocyanine green (ICG) fluorescence imaging to help visualize the RGEA during the procedure.
  • The operation was completed successfully in 279 minutes with minimal blood loss, and the patient had a good recovery with no complications post-surgery.
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Background: Enterocutaneous fistula after removal of the jejunostomy tube leads to multiple problems, such as cosmetic problems, decreased quality of life, electrolyte imbalances, infectious complications, and increased medical costs. However, the risk factors for refractory enterocutaneous fistula (REF) after button jejunostomy removal remain unclear. Therefore, in this study, we assessed the risk factors for REF after button jejunostomy removal in patients with oesophageal cancer and reported the surgical outcomes of the novel extraperitoneal approach (EPA) for REF closure.

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Colonoscopy-assisted percutaneous sigmoidopexy is a simple and swift procedure that does not require general anesthesia. While we first developed this procedure for treating sigmoid volvulus, we herein present the first case in which we used it to correct a complete rectal prolapse in an older patient. Existing treatment modalities for rectal prolapses are limited by high recurrence rates, greater invasiveness, and greater complications; thus, there is a need for minimally invasive techniques that are associated with lower recurrence rates and fewer complications.

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  • Sarcopenia impacts the masseter muscle, which is important for swallowing and chewing, but its role in pneumonia is not well understood.
  • A study analyzed 86 esophageal cancer patients who had surgery and found that 31.3% developed pneumonia within 3 months post-operation.
  • The study identified that factors like reduced lung function, right recurrent laryngeal nerve palsy, and masseter muscle sarcopenia are significant risk factors for developing postoperative pneumonia.
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Background/aim: Although laparoscopic hepatectomy has been widely used in the management of liver tumors for its reduced invasiveness and magnified view, in the caudate lobe it remains challenging especially for patients with cirrhosis. Thus, this study aimed to evaluate patients undergoing laparoscopic hepatectomy for hepatic tumors in the caudate lobe and establish strategies for performing such procedure.

Patients And Methods: Laparoscopic hepatectomy in the caudate lobe was performed in nine patients.

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  • Appendicectomy is usually a safe, minimally invasive surgery, but this case shows a rare complication of acute respiratory distress syndrome (ARDS) due to a bacterial infection post-surgery.
  • A man in his 60s had an emergency laparoscopic appendectomy but developed symptoms of ARDS three days later, leading to the diagnosis of sepsis caused by Bacteroides ovatus, which was resistant to the antibiotic initially given.
  • The case highlights the importance of conducting blood cultures to identify the cause of infections and their antibiotic resistance, even after common procedures like appendicectomies.
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Severe duodenal ulcer stenosis requires continuous decompression, which makes oral ingestion difficult, yet poor nutritional status before surgery increases the risk postoperative complications. Double percutaneous transesophageal gastrotubing (dPTEG) is a new treatment that provides both decompression and enteral nutrition. We report a case of duodenal ulcer scar stenosis in which dPTEG was used for preoperative management.

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