Publications by authors named "Hisanori Hatano"

Article Synopsis
  • Percutaneous transhepatic gallbladder aspiration (PTGBA) and drainage (PTGBD) are valuable for managing acute cholecystitis in patients unable to undergo surgery due to health concerns.
  • A study analyzed 63 patients who had laparoscopic cholecystectomy (LC) following PTGBA, comparing those who only had PTGBA to those who required additional PTGBD.
  • Results showed no major complications, but patients needing additional PTGBD experienced longer surgery times, longer hospital stays, and more blood loss than those who only had PTGBA, highlighting PTGBA's effectiveness for better surgical outcomes.
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Background: When percutaneous transhepatic gallbladder drainage (PTGBD) is followed by laparoscopic cholecystectomy (LC), there is no consensus regarding whether the drainage tube should be preserved or removed before LC. We hypothesized that the surgical results of LC might differ between cases with PTGBD tube preservation versus removal. Here, we investigated how drainage tube preservation or removal affected the surgical outcome of LC.

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Introduction: Subtotal cholecystectomy (STC) has become recognized as a "bailout procedure" to prevent bile duct injury in patients undergoing laparoscopic cholecystectomy (LC). Predictors of conversion to STC have not been identified because LC difficulty varies based on pericholecystic inflammation. We analyzed data from patients enrolled in a previously performed multi-institutional retrospective study of the optimal timing of LC after gallbladder drainage for acute cholecystitis (AC).

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Background: There is no consensus on the optimal timing of laparoscopic cholecystectomy (LC) after gallbladder drainage for acute cholecystitis (AC). To obtain evidence for a consensus, we investigated surgical outcomes of LC after gallbladder drainage with respect to the time elapsed from gallbladder drainage to surgery in a multi-institutional retrospective study.

Methods: This study enrolled 347 patients who underwent LC after gallbladder drainage for AC at 15 institutions.

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Most cases of adult intussusception are caused by neoplastic lesions, and idiopathic adult intussusception is very rare. We present a case in which laparoscopic surgery was performed for idiopathic adult intussusception initially reduced by colonoscopy. A 53-year-old woman presented to the emergency department of our hospital with intermittent lower abdominal pain.

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Introduction: The clinical significance of laparoscopic cholecystectomy (LC) for acute cholecystitis in elderly patients aged 80 years or older has not been determined. This study aimed to investigate surgical outcomes of LC for acute cholecystitis in elderly patients compared to non-elderly patients.

Methods: Patients who underwent urgent LC for acute cholecystitis were enrolled.

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BACKGROUND Cystic artery pseudoaneurysm is rare, and some cases are associated with inflammation of the gallbladder. There is limited information regarding this condition, and the clinical features remain unclear. This report is a case of ruptured cystic artery pseudoaneurysm diagnosed by computed tomography (CT) imaging and treated with urgent cholecystectomy and is supported by a literature review of previous cases.

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Background & Aims: To improve prognosis in patients with hepatocellular carcinoma (HCC), the molecular mechanisms of tumor thrombus formation and metastasis must be clarified. The epithelial-mesenchymal transition (EMT) and cancer stem cells (CSCs) play crucial roles in tumor invasion and metastasis. This study aimed to reveal the clinical significance of the expression of the functional CSC marker, CD13, and investigate the correlation between CD13 expression and two EMT markers, E-cadherin and vimentin.

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Background/aim: During pancreatoduodenectomy, early ligation of major afferent arteries to pancreatic head prior to dissection of the corresponding veins may reduce intraoperative bleeding. Inferior pancreaticoduodenal artery (IPDA), one of the major afferent arteries, is difficult to identify. We measured the distance from left renal vein to IPDA based on preoperative multi-detector row computed tomography (MDCT) images for use as a new landmark for IPDA.

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Purpose: In 2009, the Centers for Disease Control and Prevention published Guidelines for the Prevention of Catheter-Associated Urinary Tract Infections, which limited the indications for perioperative urinary catheter use. We conducted this study to evaluate the safety of elective laparoscopic cholecystectomy (LC) without urinary catheter placement and to investigate whether it reduces the incidence of urinary complications.

Methods: Of 244 patients who underwent elective LC between March, 2010 and April 2011, 192 patients fulfilled the eligibility criteria and underwent surgery without urinary catheterization (non-catheterized group).

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Background: Emergency surgery for obstructing colorectal cancer is associated with high mortality and morbidity rates.

Objective: The purpose of this study was to assess outcomes of emergency surgery for obstructing colorectal cancer in a single hospital, where care was primarily provided by colorectal surgeons.

Design: This was a retrospective cohort study.

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A 64-year-old man presented with epigastric discomfort and nausea. Laboratory analyses revealed increased levels of total and direct bilirubin, and increased levels of aminotransferases. Computed tomography revealed the presence of a mass in the distal common bile duct.

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We report a case of a 71-year-old man with liver metastases from a rectal neuroendocrine tumor(NET). The patient's chief complaint was melena. He was diagnosed with rectal carcinoma with liver metastases during his initial visit.

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A 56-year-old woman was referred to our hospital because of epigastric discomfort and jaundice. Contrast-enhanced computed tomography and gastrointestinal endoscopy revealed an ampullary tumor. A biopsy specimen showed adenocarcinoma of the ampulla of Vater.

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An 83-year-old man underwent extended cholecystectomy for gallbladder cancer. On postoperative day 13, he developed fever and computed tomography (CT) revealed fluid collection at the cut surface of the liver. Ultrasound-guided fluid drainage was conducted, and he was diagnosed with biliary leakage.

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A 60-year-old male patient underwent curative surgical resection for gastric cancer. After the surgery, the patient was diagnosed with T4b, N3b, ly3, v2, CY0, fStageⅢc gastric cancer, and adjuvant systemic chemotherapy using S-1 and CDDP was administered. However, follow-up computed tomography (CT) scan examination taken 2 months after surgery revealed a pancreatic fistula and retroperitoneal abscess, and percutaneous drainage was performed.

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Objective: To examine the effect of S-1 adjuvant chemotherapy on muscle volume after curative gastrectomy in gastric cancer patients.

Patients: Forty-eight gastric cancer patients (31 men and 17 women) who underwent curative gastrectomy (distal gastrectomy: n=37, and total gastrectomy: n=11) between April 2010 and July 2011 were enrolled in this study. Sixteen patients underwent S-1 adjuvant chemotherapy (S-1 group) for 1 year after the operation, and 32 patients did not (NT group).

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Background: It is preferable to perform laparoscopic cholecystectomy for acute cholecystitis in the acute phase, within 72 h of symptom onset. The feasibility and safety of performing urgent laparoscopic cholecystectomy in the late phase (4-7 days after symptom onset) are unclear. The aim of this study was to clarify the feasibility and safety of late phase urgent laparoscopic cholecystectomy.

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The patient was a 73-year-old male with advanced gastric cancer in the lesser curvature of the antrum.Abdominal computed tomography revealed multiple liver metastases(S5, S8).He was diagnosed with clinical Stage IV gastric cancer (cT3N0M1H1).

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The patient was a 74-year-old woman with advanced gastric cancer in the greater curvature of the antrum and lesser curvature of the angle.Abdominal computed tomography revealed bulky lymph node metastases of No. 3, 8a, and 11p.

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A 74-year-old man with chronic hepatitis C was diagnosed with liver tumors. Contrast-enhanced computed tomography (CT) and ethoxybenzyl diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging (EOB-MRI) revealed hepatocellular carcinomas(HCC) in segments 8 (S8)and 5/8 (S5/8), and detected a lymph node (LN) swelling of 75 mm diameter in the posterior aspect of the pancreatic head. Fluorine-18-fluorodeoxyglucose positron emission tomography (FDG-PET) was positive for the swollen LN (SUVmax 12.

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Background/aims: Early cholecystectomy is recommended for patients with acute cholecystitis, particularly when less than 72 hours have passed since symptom onset. The safety of early laparoscopic cholecystectomy for patients receiving anticoagulants or antiplatelet agents is unclear. We retrospectively analyzed the safety of early laparoscopic cholecystectomy for patients with acute cholecystitis undergoing antiplatelet or anticoagulation therapy.

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We report a case of a patient in whom a giant mucinous cystadenocarcinoma was treated with distal pancreatectomy. A 37-year-old woman was admitted to the hospital complaining of intermittent epigastric pain. The laboratory data revealed a marked increase in serum levels of carcinoembryonic antigen( CEA 22 ng/mL), cancer antigen( CA) 19-9( 258,129 U/ mL), and CA125 (53 U/mL).

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We report a case of long-term survival of a patient who underwent hepatic resection for metastatic gastric cancer. The patient was a 75-year-old man who underwent distal gastrectomy for gastric cancer in 2004. On pathological examination, the tumor was diagnosed as T4a (SE) N0M0, stage IIB.

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Cancer stem cells (CSCs) are generally dormant or slowly cycling tumor cells that have the ability to reconstitute tumors. They are thought to be involved in tumor resistance to chemo/radiation therapy and tumor relapse and progression. However, neither their existence nor their identity within many cancers has been well defined.

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