Fukuyama, Japan
Fukuyama, Japan

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Hiraoka S.,Okayama University of Science | Kato J.,Okayama University of Science | Fujiki S.,Tsuyama Central Hospital | Kaji E.,Okayama University of Science | And 9 more authors.
Gastroenterology | Year: 2010

Background & Aims: There is evidence that serrated polyps (serrated adenomas and hyperplastic polyps) have different malignant potential than traditional adenomas. We used a colonoscopy database to determine the association between the presence of serrated colorectal polyps and colorectal neoplasia. Methods: We performed a multicenter observational study of 10,199 subjects who underwent first-time colonoscopies. Data collected on study subjects included age and sex and the location, size, and histology of polyps or tumors found at colonoscopy. Serrated polyps were defined as those diagnosed by the pathologists in the participating hospitals as a serrated lesion (a lesion given the term of "classical hyperplastic polyp," "traditional serrated adenoma," "sessile serrated adenoma," or "mixed serrated polyp"). Large serrated polyps (LSPs) were defined as those ≥ 10 mm. Results: There were 1573 patients (15.4%) with advanced neoplasia, 708 patients (6.9%) with colorectal cancer (CRC), and 140 patients (1.4%) with LSPs in our cohort. Multivariate analysis associated the presence of LSPs with advanced neoplasia (odds ratio [OR], 4.01; 95% confidence interval [CI], 2.83-5.69) and CRC (OR, 3.34; 95% CI, 2.16-5.03). The presence of LSPs was the greatest risk factor for CRC, particularly for proximal CRC (OR, 4.79; 95% CI, 2.54-8.42). Proximal and protruded LSPs were the highest risk factors for proximal CRC (OR, 5.36; 95% CI, 2.40-10.8 and OR, 9.00; 95% CI, 2.75-19.2, respectively). Conclusions: The presence of LSPs is a risk factor for CRC, particularly CRC of the proximal colon. © 2010 by the AGA Institute.


Aoki H.,National Hospital | Takakura N.,Fukuyama City Hospital | Shiozaki S.,Hiroshima City Hospital | Matsukawa H.,Hiroshima City Hospital
Digestive Surgery | Year: 2010

Background/Purpose: The incidence and natural history of postoperative chylous ascites are not well understood. This complication causes malnutrition and prolonged hospital stay. We investigated our institution's experience involving chylous ascites, especially following pancreatectomy. Additionally, we designed a new intraoperative method dubbed the 'milk test' for preventing chylous ascites. Methods: Five cases of chylous ascites following pancreatectomy from April 2001 through March 2004 were studied retrospectively. The milk test was carried out prospectively. Such rates as positivity and incidence of ascites were examined. Results: Of 65 cases (40 pancreatoduodenectomy; 25 distal pancreatectomy), 5 (7.7%) developed chylous ascites following pancreatic resection. All cases underwent octreotide and total parenteral nutrition treatment. From April 2004 through March 2009, the milk test was used in 104 cases. Surgical procedures comprised pancreatoduodenectomy (n = 78) and distal pancreatectomy (n = 23). Of these cases, 23 (22.1%) tested positive. No significant difference in positive rates was observed between the procedures and diseases. After initiation of the milk test, chylous ascites incidence decreased from 7.7 to 2.9%. Conclusions: For chylous ascites, octreotide and total parenteral nutrition treatments are useful. However, the milk test was found to be a safe and effective method for prevention of chylous ascites following pancreatectomy. Copyright © 2010 S. Karger AG, Basel.


Hamamoto H.,Fukuyama City Hospital | Noda M.,Saitama University
American Journal of Case Reports | Year: 2015

Objective: Unusual or unexpected effect of treatment Background: A detailed description is given of a case we encountered in which unexpectedly marked weight gain occurred following a treatment switch from a GLP-1 receptor agonist to an SGLT-2 inhibitor. Case Report: The patient, a 44-year-old man with type 2 diabetes mellitus, had gained about 10 kg in weight in the previous year. Therefore, metformin was replaced with liraglutide to obtain reduction of body weight. Although the patient lost about 8 kg (7%), during the 18-month period on the medication, the weight loss stabilized; therefore, the treatment was again switched to tofogliflozin to obtain further reduction of body weight. However, the patient reported increasing hunger and an exaggerated appetite from week 3 onward after the start of tofogliflozin, and gained about 9 kg in weight within 2 weeks, associated with a tendency towards increased HbA1c; therefore, tofogliflozin was discontinued. Immediate reinstitution of liraglutide resulted in reduction of the increased appetite, weight, and HbA1c level. Conclusions: Caution should be exercised against hyperphagia and weight gain due to hunger that may occur following discontinuation of a GLP-1 receptor agonist and/or initiation of an SGLT-2 inhibitor. © Am J Case Rep.


Muro M.,Fukuyama City Hospital
Kyobu geka. The Japanese journal of thoracic surgery | Year: 2012

A 55-year-old man underwent rectal amputation for rectal cancer in August 2005. A tiny thin-walled cavity lesion in his left S1+2 was found on computed tomography (CT) of the chest in November 2008. The cavity lesion in the left S1+2 gradually increased in size over 3 months and positron emission tomography (PET) with 18F-fluorodeoxyglucose (FDG) showed FDG accumulation at the lesion. Videoassisted thoracoscopic (VATS) wedge resection was performed to make a definite diagnosis in March 2009. The pathological findings revealed a metastatic lung tumor from the rectal cancer. It is necessary to consider the possibility of metastatic lung tumors in a case with the cavity lesions especially in patients with a history of colon cancer.


Muro M.,Fukuyama City Hospital
Kyobu geka. The Japanese journal of thoracic surgery | Year: 2010

A 74-year-old man was admitted to our hospital in order to treat a mediastinal mass and 2 ground-glass attenuations in the right upper lobe detected by chest X-ray and computed tomography (CT). Partial resection of right lung and thymectomy were performed. The mediastinal mass and 2 ground-glass attenuations in the right upper lobe proved to be thymoma and bronchioloalveolar carcinomas, respectively by pathology.


Yoshioka T.,Fukuyama City Hospital
Kyobu geka. The Japanese journal of thoracic surgery | Year: 2010

A 72-year-old woman was reffered to our hospital for further examination of a tumor shadow in the left upper lung field which was detected in a mass screening chest X-ray. Computed tomography (CT) and magnetic resonance imaging (MRI) revealed a chest wall tumor located in the left 4th intercostal space. The lesion was suspected to be neurogenic tumor and CT-guided needle biopsy was performed. The tumor was consisted of spindle-shaped cells, but immunohistochemistry demonstrated no evidence of neurogenic tumor. As a possibility of malignant tumor could not denied, we performed tumor resection under video-assisted surgery. The lesion was not originated from nerves, but adhered to the intercostal muscle. Histologically, the tumor was consisted of spidle-shaped cells without atypia which sparsely proliferate in the myxoid stroma adjacent to intercostal muscle. In immunohistochemistry, tumor cells were positive for vimentin, and negative for desmin, S-100 protein, smooth muscle actin, CD34 and factor VIII. It was diagnosed as intramuscular myxoma. This histology in the intercostal muscle is extremely rare.


Kuriyama M.,Fukuyama City Hospital
Kyobu geka. The Japanese journal of thoracic surgery | Year: 2013

An 80-year-old woman was referred to our institution because of acute heart failure due to moderate mitral stenosis and severe regurgitation. After medical treatment of heart failure, she underwent mitral valve surgery. Intraoperatively severe calcification of the posterior mitral annulus was revealed. We excised only the anterior mitral leaflet and preserved the posterior mitral leaflet to prevent a fatal complication such as left ventricular rupture, injury of the coronary artery or embolism. Partial resection of the calcified annulus was performed using Ultrasonic Surgical System (SonoSurg), after 2-0 polyester mattress sutures were placed through the anterior and posterior annuli from the left ventricle to the left atrium. Then, mitral valve replacement was performed using a St. Jude Medical mechanical heart valve at the supra-annular position. The postoperative course was uneventful. We concluded that partial resection of a severely calcified posterior mitral annulus by the ultrasonic device was a safe and simple procedure.


Okumura Y.,Fukuyama City Hospital
Japanese Journal of Clinical Radiology | Year: 2014

We report a 80's male with primary hepatic neuroendcrine tumor without clinical symptom, dynamic contrast CT showed a hypervascular tumor at S5 of the liver. EOB-MRI showed high intensity on T2WI, low intensity on T1WI, the hepatic phase and the diffusion weighted image. It showed high FDG accumulation. Pathological examination confirmed neuroendcrine tumor of liver, G2 stage, and owing to the CD56 positive, 12.6% at MIB-1 index, with a little necrosis, no capsule and hemorrhage.


Ono K.,Fukuyama City Hospital | Idani H.,Fukuyama City Hospital | Hidaka H.,Fukuyama City Hospital | Kusudo K.,Fukuyama City Hospital | And 2 more authors.
Surgical Laparoscopy, Endoscopy and Percutaneous Techniques | Year: 2013

No consensus exists whether to continue or withdraw aspirin therapy perioperatively in patients undergoing major laparoscopic abdominal surgery. To investigate whether preoperative continuation of aspirin therapy increases blood loss and associated morbidity during laparoscopic cholecystectomy and colorectal cancer resection, we compared duration of surgical procedures, amount of intraoperative blood loss, rate of blood transfusion, length of postoperative stay, rate of conversion to open surgery, and reoperation within 48 hours between patients with and without aspirin therapy preoperatively. Twenty-nine of 270 patients who underwent laparoscopic cholecystectomy and 23 of 218 patients who underwent laparoscopic colorectal cancer resection, respectively, were on aspirin therapy. We found no significant difference in the investigated outcome between groups with the exception of longer surgical duration of laparoscopic cholecystectomy in aspirin-treated patients. Although underpowered, above findings may suggest that aspirin continuation is unlikely to increase blood loss or postoperative morbidity in patients undergoing laparoscopic cholecystectomy or colorectal cancer resection. Copyright © 2013 by Lippincott Williams & Wilkins.


PubMed | Fukuyama City Hospital
Type: Journal Article | Journal: Asian journal of endoscopic surgery | Year: 2017

The intra-operative detection of hepatocellular carcinoma (HCC) by ultrasonography is indispensable for laparoscopic partial hepatectomy. However, it is occasionally difficult to localize an HCC on an ultrasound in chronic liver disease. Two cases of partial hepatectomy using hookwire marking under CT guidance are presented.The location of the HCC was identified by CT scan, and the puncture site was determined. A hookwire system, made of a stainless steel hook, was used to localize the HCC. The hookwire was placed percutaneously close to the HCC, and then the patient was taken to the operating room as soon as possible. After identification of the hookwire marker, the cutting line was determined on the liver surface to ensure a sufficient surgical margin in laparoscopic partial hepatectomy.Two cases underwent these procedures with easy intra-operative marking of the resection area. This technique facilitates safe laparoscopic partial hepatectomy for an HCC that is invisible on ultrasound.

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