Publications by authors named "Akihiro Kohata"
Article Synopsis
- - The study investigated how intraesophageal pressure impacts quality of life in patients who had total gastrectomy with Roux-en-Y anastomosis, using high-resolution impedance manometry (HRIM) on 12 participants post-surgery.
- - Most patients exhibited normal esophageal motility, and factors like integrated relaxation pressure and lower esophageal sphincter residual pressure correlated with specific symptoms, such as diarrhea and indigestion.
- - The findings suggest that HRIM is a valuable tool for assessing esophageal function and its effects on quality of life following total gastrectomy.
Article Synopsis
- Individualized assessments are important for elderly patients with gastric cancer to create effective surgical treatment plans.
- A study involving 571 patients found that factors like poor health status, comorbidities, and a high C-reactive protein to albumin ratio (CAR) can predict surgical complications in elderly patients.
- High CAR was linked to increased complications and worse overall survival and recurrence-free survival, but this connection was not seen in younger patients.
Article Synopsis
- A 64-year-old man was diagnosed with a gallbladder tumor that posed challenges in distinguishing between intracystic papillary neoplasms (ICPN) and adenocarcinoma during preoperative examinations.
- The patient underwent an extended cholecystectomy, revealing papillary lesions in the gallbladder, leading to a diagnosis of ICPN due to the presence of irregular adenocarcinoma-like cells.
- Postoperatively, the patient's prognosis is good, but the case highlights the difficulties in preoperative diagnosis and the importance of careful treatment planning for gallbladder cancer.
Introduction And Importance: Recently, the successful long-term survival of patients with unresectable distant metastases from colorectal cancer, who underwent conversion surgery after systemic chemotherapy, have been documented. Herein, we present a patient afflicted with ascending colon cancer and multiple unresectable liver metastases, who underwent conversion surgery, resulting in the complete disappearance of the pathological liver metastases.
Presentation Of Case: A 70-year-old woman visited our hospital with a chief complaint of weight loss.
Although small bowel cancer is rare, cases of carcinoma arising from the abdominal wall have not been reported. We report a case of a tumor arising from a stoma scar site, following ileostomy closure that was performed 60 years earlier. The tumor was resected for both therapeutic and diagnostic purposes and was found to be a primary cancer of the small intestine.
View Article and Find Full Text PDFArticle Synopsis
- - Hepatic cysts are generally harmless and often don't show symptoms, but larger ones can lead to issues like jaundice and portal hypertension, although they rarely obstruct the gastrointestinal tract.
- - In a reported case, a large hepatic cyst caused a blockage in the duodenum, requiring an emergency procedure where the cyst was punctured to relieve pressure and examine the fluid for malignancy, which returned negative results.
- - To treat the cyst, laparoscopic deroofing was performed, but due to the cyst being strongly attached to the duodenal wall, the wall was left intact, demonstrating that a two-step method of cyst puncture followed by surgery might be effective in urgent cases.
Recent surgical technical improvements, such as endoscopic surgery with intersphincteric resection (ISR), could help avoid a permanent colostomy for patients with low-lying rectal tumors. However, the problems associated with anal dysfunction following ISR remain unresolved. We performed ISR and temporary ileostomy in a patient with low-lying rectal cancer.
View Article and Find Full Text PDFMixed neuroendocrine-non-neuroendocrine neoplasms of ascending colon: A case report.
Int J Surg Case Rep
September 2020
Introduction: Neuroendocrine tumor (NET) that develops in the right-sided colon is relatively rare. Coexistence of adenocarcinoma and NET is extremely rare, and such cases are called mixed neuroendocrine-non-neuroendocrine neoplasm (MiNEN).
Presentation Of Case: Colonoscopy in an 85-year-old woman for an anemia examination indicated laterally spreading tumor-nongranular (LST-NG) in the transverse colon.
A 49-year-old woman presented to the hospital with a right inguinal swelling. On examination, we suspected hydrocele of the canal of Nuck (HCN) or an appendiceal or retroperitoneal tumor. Surgery for diagnosis and removal of the mass revealed that it was large and located in the preperitoneal cavity, extending into the inguinal ring; so, it was difficult to observe the entire outline of the mass solely using the laparoscopic approach.
View Article and Find Full Text PDFMost cases of peritoneal dissemination of colorectal cancers are from T3 or T4 tumors. A 61-year-old woman was admitted for examination of a positive fecal occult blood test. Colonoscopy showed an ascending colon tumor that was diagnosed as an adenocarcinoma with massive submucosal invasion.
View Article and Find Full Text PDFRectal Arteriovenous Malformation Treated by Transcatheter Arterial Embolization.
Case Rep Gastroenterol
January 2020
An 86-year-old man who presented with frequent hematochezia with mild anemia on blood tests was admitted to our hospital. Colonoscopy exhibited a submucosal tumor-like lesion in the lower rectum. CT and MRI showed blood flow into the lesion, but not tumor component.
View Article and Find Full Text PDFIntroduction: Inguinal bladder hernia (IBH) is a rare condition that is difficult to diagnose preoperatively based only on physical examination; 16% of IBHs are diagnosed postoperatively due to complications.
Presentation Of Case: We report the case of a 56-year-old man who presented with left inguinal swelling and increased frequency of urination since eight years. Physical examination demonstrated a 6 × 4 cm non-reducible left inguinal bulge with mild tenderness on palpation.
Background: Duodenal duplication cysts in adults are rare, and a preoperative diagnosis remains difficult because clinical manifestations are nonspecific and variable. We describe a case of a duodenal duplication cyst mimicking a pancreatic pseudocyst with repeated intracystic hemorrhage.
Case Presentation: A 47-year-old male who complained of upper abdominal pain and vomiting was referred to our hospital.