Koga General Hospital

Miyazaki-shi, Japan

Koga General Hospital

Miyazaki-shi, Japan
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Shiiba T.,Teikyo University | Kuga N.,Koga General Hospital | Kuroiwa Y.,Koga General Hospital | Kuroiwa Y.,University of Miyazaki | Sato T.,Japan Atomic Energy Agency
Applied Radiation and Isotopes | Year: 2017

We assessed the accuracy of mono-energetic electron and beta-emitting isotope dose-point kernels (DPKs) calculated using the particle and heavy ion transport code system (PHITS) for patient-specific dosimetry in targeted radionuclide treatment (TRT) and compared our data with published data. All mono-energetic and beta-emitting isotope DPKs calculated using PHITS, both in water and compact bone, were in good agreement with those in literature using other MC codes. PHITS provided reliable mono-energetic electron and beta-emitting isotope scaled DPKs for patient-specific dosimetry. © 2017 Elsevier Ltd

Kawagoe J.,University of Miyazaki | Ishikawa T.,University of Miyazaki | Iwakiri H.,Miyakonojo Regional Medical Center | Date H.,Jounan Hospital | And 2 more authors.
International Heart Journal | Year: 2014

Adiponectin has antiatherosclerotic properties and is also produced in the local coronary circulation. We previously reported that signifi cantly less adiponectin was produced in the coronary circulation of patients with than without coronary artery disease (CAD). The goal of this study was to determine whether adiponectin production in the coronary circulation could predict future cardiovascular events in patients with CAD. Forty-eight CAD patients whose left anterior descending coronary arteries required percutaneous coronary intervention (PCI) were enrolled. The amount of adiponectin production in the coronary circulation was defi ned as the plasma adiponectin level at the great cardiac vein minus that at the orifi ce of the left coronary artery. All patients were divided by adiponectin production level in the coronary circulation into the adiponectin-positive production group (> 0 μg/ mL) and adiponectin-negative production group (≤ 0 μg/mL). Median follow-up period was 66 months (maximum, 108 months). The primary endpoint was the combined occurrence of major adverse cardiovascular events (MACE), including rehospitalization due to unstable angina, heart failure, nonfatal myocardial infarction, revascularization with PCI or coronary artery bypass grafting, ischemic stroke, and cardiovascular death. Sixteen MACE occurred. The incidence of MACE was signifi cantly higher in the adiponectin-negative production group than in the adiponectin-positive production group (P = 0.02). In multivariate analysis, adiponectin-negative production was a predictor of MACE (P = 0.03). Kaplan-Meier analysis revealed that the MACE-free rate was signifi cantly lower in the adiponectin-negative production group than in the adiponectin-positive production group. Adiponectin production in the coronary circulation with CAD may be associated with MACE.

Inoue Y.,Cancer Institute Hospital | Saiura A.,Cancer Institute Hospital | Yoshioka R.,University of Tokyo | Ono Y.,Cancer Institute Hospital | And 4 more authors.
Annals of Surgery | Year: 2015

Objective: To describe the details of the surgical technique of pancreatoduodenectomy (PD) with systematic mesopancreas dissection (SMD-PD), using a supracolic anterior artery-first approach. Background: An artery-first approach in PD has been advocated in pancreatic cancer to judge resectability, clear the superior mesenteric artery margin from invasion, or reduce blood loss. However, the efficacy of an artery-first approach in mesopancreas dissection remains unclear. Methods: This study involved 162 consecutive patients who underwent PD with curative intent. The patients were divided into 82 SMD-PDs and 80 conventional PDs (CoPD) and then stratified further according to the dissection level, that is, level 1 was applied to 24 simple mesopancreas divisions for early inflow occlusion including 11 SMD-PDs, level 2 for 63 en bloc mesopancreas resections (26 SMD-PDs), and level 3 for 75 patients who underwent a hemicircumferential superior mesenteric artery plexus resection to keep the margin free from cancer invasion (45 SMD-PDs). The clinical and imaging results were collected to assess the feasibility and validity of SMDPD with an artery-first approach. Results: Blood loss and operation duration were significantly less in the SMD-PD group than in the CoPD group among the total 162 patients. The imaging analysis showed that four fifths of pancreatic arterial branches came from the right dorsal aspect of the superior mesenteric artery and cancer abutment occurred exclusively from the same direction indicating the validity of an artery-first approach. Conclusions: SMD-PD using an SAA is feasible across PD cases, with acceptable short-term outcomes, and we propose this procedure as a promising option for PD. © 2015 Wolters Kluwer Health, Inc. All rights reserved.

Akaki M.,University of Miyazaki | Taniguchi S.,Koga General Hospital | Hatakeyama K.,University of Miyazaki | Kushima R.,National Cancer Center Hospital | Kataoka H.,University of Miyazaki
BMC Gastroenterology | Year: 2014

Background: Brunner's gland hamartoma is a rare tumor, predominantly found in the fifth to sixth decades of life. Generally, it is a single pedunculated polyp, rarely larger than 5 cm. Asymptomatic cases are found incidentally, but cases with a large polyp tend to have gastrointestinal bleeding and/or obstructive symptoms. Polyp size increases in a time-dependent manner, however, the growth mechanism is unknown. We report a Japanese male case in his mid-twenties with an over 6 cm sized polyp.Case presentation: A 26-year-old man presented black stools and anemia. Endoscopic examination revealed a large pedunculated polyp at gastroduodenal junction. The polyp, subsequently resected by distal gastrectomy, was lobulated with random surface erosions and sized 6.4 × 3 cm. Histological examination revealed that the polyp arose from duodenal mucosa and was composed of hyperplastic Brunner's glands in lobules separated by fibromuscular septa, associated with lymphocytic infiltrate and lymphoid follicles. No evidence of malignancy was found. Thus, the lesion was diagnosed as Brunner's gland hamartoma. Further immunohistochemical studies indicated that gastric foveolar metaplasia is associated with surface epithelium covering upper two thirds of the polyp, showing immunohistochemical positivity for mucin 5 AC (MUC5AC). Below the metaplastic surface epithelium, Brunner's glands had high proliferative activity (MIB-1 labeling index: 7.9%). The similar staining pattern was observed at surface erosive sites (MIB-1 labeling index in Brunner's glands: 9%). On the other hand, surface epithelium in the lower side of the polyp still preserved intestinal nature, containing CDX2-positive nuclei and MUC2-positive goblet cells. Brunner's glands below the surface epithelium with intestinal characteristics showed low proliferative activity (MIB-1 labeling index: 0.77%).Conclusion: Proliferative activity of Brunner's glands was high at the sites with surface erosion and also below the epithelium showing gastric foveolar metaplasia. As gastric foveolar metaplasia occurs along with a mucosal repair process in the duodenum, mucosal damages underlay the hamartomatous proliferation of Brunner's glands and eventually resulted in a formation of large polypoid mass in this case. © 2014 Akaki et al.; licensee BioMed Central Ltd.

Hojo H.,Koga General Hospital
Kyobu geka. The Japanese journal of thoracic surgery | Year: 2011

We report a case of successful treatment of a ruptured distal aortic arch aneurysm with cardiac tamponade by using selective cerebral perfusion for protecting the brain. A 79-year-old man had sudden onset of severe chest and back pain. Chest computed tomography (CT) suggested an acute aortic dissection. He was immediately transferred to the emergency room of our hospital. Echocardiography performed on admission revealed intrapericardial fluid, and hemodynamic monitoring suggested cardiac tamponade. After pericardiocentesis and removal of 400 ml bloody fluid, his hemodynamic condition became stable. Enhanced chest CT showed ruptured distal aortic arch aneurysm with pericardial and pleural effusion. Emergency patch plasty of the aneurysm under extracorporeal circulation (ECC) was performed, assisted by selective cerebral perfusion and deep hypothermia. The patient's postoperative course was uneventful, except for minor transient respiratory troubles, and he was able return to his usual activity.

Nishi K.,University of Miyazaki | Fujimoto S.,University of Miyazaki | Hisanaga S.,Koga General Hospital | Ogawa O.,Kenjinkai Oonuki and Ogawa Clinic | Kitamura K.,University of Miyazaki
Therapeutic Apheresis and Dialysis | Year: 2013

The prevalence and incidence of atrial fibrillation in hemodialysis patients have recently increased, but there are few evident predictors of incident atrial fibrillation in hemodialysis patients. The purpose of this study was to determine whether electrocardiographic findings can predict the development of atrial fibrillation in hemodialysis patients. A cohort of 299 patients (age, 63.1±14.0 years; men, 59.2%; duration of hemodialysis, 80.3±77.7 months) on hemodialysis therapy in December 2004 was included. To determine the incidence of atrial fibrillation, electrocardiographic findings were checked regularly every 1-3 months through December 2009. To detect paroxysmal atrial fibrillation, we examined electrocardiograms any time a patient had cardiac symptoms. Cox proportional hazard analysis was used to determine independent variables for the onset of atrial fibrillation. At the time of enrollment, 37 patients had pre-existing atrial fibrillation, for a prevalence rate of 12.4%. On the other hand, newly developed atrial fibrillation during the 5-year follow-up was determined in 45 patients, for an incidence rate of 4.37/100 patient-years. In multivariate analysis, age (hazard ratio, 1.04; 95% confidence interval, 1.01 to 1.07) and the presence of a P-terminal force >0.04mm/s as an electrocardiographic finding (hazard ratio, 4.89; 95% confidence interval, 2.54 to 9.90) were independently associated with new-onset atrial fibrillation. The prevalence and incidence rates of atrial fibrillation are high in maintenance hemodialysis patients. Age and the presence of a P-terminal force >0.04mm/s as an electrocardiographic finding may predict new-onset atrial fibrillation in these patients. Therapeutic Apheresis and Dialysis © 2012 International Society for Apheresis.

PubMed | University of Miyazaki, Koga General Hospital and Miyazaki Medical Association Hospital
Type: Journal Article | Journal: BMC anesthesiology | Year: 2016

Remifentanil is an effective drug for protecting against adverse haemodynamic responses to tracheal intubation. We compared the haemodynamic responses during anaesthesia induction between continuous intravenous (IV) infusion and two bolus injections of remifentanil.This prospective, randomised, open-label, single-centre study included patients with American Society of Anesthesiologists physical status I-II, scheduled to undergo elective surgery under general anaesthesia. Patients were randomised into two groups based on remifentanil administration type: the continuous IV infusion group (Group C) receiving a 0.3-g/kg/min remifentanil infusion for 5min followed by a 0.1-g/kg/min remifentanil infusion, and the IV bolus group (Group B) receiving a combination of two bolus injections of remifentanil (first bolus of 0.4g/kg and second bolus of 0.6g/kg after 3min) and 0.1g/kg/min remifentanil. General anaesthesia was induced with 1mg/kg propofol and 0.6mg/kg rocuronium 3min after remifentanil infusion (Group C) or immediately after the first bolus of remifentanil (Group B). Tracheal intubation was performed 4min after the injection of propofol and rocuronium. Heart rate and non-invasive blood pressure were recorded at 1-min intervals from baseline (i.e., before induction) to 5min after tracheal intubation.A total of 107 patients were enrolled (Group C, 55; Group B, 52). Normotensive patients with no history of antihypertensive medication use were assigned to the normotensive subgroup (41 each in both groups), while those with hypertension but without a history of antihypertensive medication use were assigned to the untreated hypertensive subgroup (Group C vs. B, n=7 vs. 4). Finally, patients with a history of antihypertensive medication use were assigned to the treated hypertensive subgroup (7 each in both Groups C and B). No differences in heart rate and blood pressure were observed between Groups C and B within each subgroup.Haemodynamic responses during anaesthesia induction were similar between continuous infusion and two bolus injections of remifentanil within both normotensive and hypertensive patients with or without medication.The trial was retrospectively registered with Japanese Clinical Trial Registry UMIN-CTR on 20 October 2016 and was given a trial ID number UMIN000024495 .

PubMed | University of Miyazaki, Miyazaki Social Insurance Hospital, Miyazaki Prefectural Hospital, Fujimoto Chuo Hospital and Koga General Hospital
Type: Journal Article | Journal: Nephrology (Carlton, Vic.) | Year: 2016

Although infection is the second leading cause of death in maintenance haemodialysis patients, the effects of glycaemic control on infection in diabetic haemodialysis patients have not yet been examined in detail. We examined the relationship between diabetes or glycemic control and infection-related hospitalization (IRH) in haemodialysis patients.Patients receiving maintenance haemodialysis (n=1551, 493 diabetic patients) were enrolled in this prospective cohort study in December 2009 and followed-up for 3 years. IRH during the follow-up period was abstracted from medical records. Kaplan-Meier and Cox regression analyses were used to investigate the relationship between diabetes or glycaemic control and IRH.The Kaplan-Meier analysis revealed that the risk of IRH was significantly higher in haemodialysis patients with diabetes, particularly in those with poorly controlled HbA1c levels (HbA1c7.0%), than in haemodialysis patients without diabetes. When patients with HbA1c 7.0% were divided into two groups using a median value of HbA1c, the risk of IRH was significantly higher in those with the poorest glycaemic control (HbA1c7.4%), an older age, or lower albumin levels. The multivariable-adjusted hazard ratio for the risk of IRH was not higher in the second criteria of HbA1c (HbA1c 7.0-7.3%), but was significantly higher in the group with the poorest glycaemic control (HbA1c7.4%) than in those in the good control criterion (HbA1c<7.0%).Although diabetes is a risk factor for IRH among maintenance haemodialysis patients, the relationship between glycaemic control and the risk of infection is not linear. Therefore, the risk of infection may increase in a manner that is dependent on the glycaemic control threshold.

PubMed | Fukuoka University, Red Cross, Saga University, Sasebo City General Hospital and 16 more.
Type: Journal Article | Journal: Blood | Year: 2015

Adult T-cell leukemia/lymphoma (ATL) is a malignancy of mature T lymphocytes caused by human T-lymphotropic virus type I. Intensive combination chemotherapy and allogeneic hematopoietic stem cell transplantation have been introduced since the previous Japanese nationwide survey was performed in the late 1980s. In this study, we delineated the current features and management of ATL in Japan. The clinical data were collected retrospectively from the medical records of patients diagnosed with ATL between 2000 and 2009, and a total of 1665 patients records were submitted to the central office from 84 institutions in Japan. Seventy-one patients were excluded; 895, 355, 187, and 157 patients with acute, lymphoma, chronic, and smoldering types, respectively, remained. The median survival times were 8.3, 10.6, 31.5, and 55.0 months, and 4-year overall survival (OS) rates were 11%, 16%, 36%, and 52%, respectively, for acute, lymphoma, chronic, and smoldering types. The number of patients with allogeneic hematopoietic stem cell transplantation was 227, and their median survival time and OS at 4 years after allogeneic hematopoietic stem cell transplantation was 5.9 months and 26%, respectively. This study revealed that the prognoses of the patients with acute and lymphoma types were still unsatisfactory, despite the recent progress in treatment modalities, but an improvement of 4-year OS was observed in comparison with the previous survey. Of note, one-quarter of patients who could undergo transplantation experienced long survival. It is also noted that the prognosis of the smoldering type was worse than expected.

PubMed | University of Miyazaki and Koga General Hospital
Type: | Journal: BMJ case reports | Year: 2016

A 63-year-old man was referred to our hospital because of renal dysfunction with haematoproteinuria. Intraperitoneal lymph node enlargement was also noted. M protein was not detected by electrophoresis of his serum and urine; however, an increase in the / ratio was detected by free light-chain assay. Percutaneous kidney biopsy was performed, and the patient was diagnosed with proliferative glomerulonephritis with monoclonal immunoglobulin deposits. Lymph node biopsy showed follicular lymphoma. Urinalysis findings improved after treatment of the lymphoma. Proliferative glomerulonephritis with monoclonal immunoglobulin deposits is rarely considered to be associated with haematological disease. We report a case of lymphoma-associated proliferative glomerulonephritis with monoclonal immunoglobulin deposits with light-chain abnormality detected by free light-chain assay, but not by electrophoresis.

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