1.A Case of Mitral Mechanical Valve Thrombosis after Switching to Edoxaban
Yasuyuki KANNO ; Yasuyuki KATO ; Hidetaka YAMAUCHI ; Taiyo JINNO ; Yusuke DATE ; Kenichi SASAKI ; Atsushi SHIMIZU ; Hiroshi KIYAMA
Japanese Journal of Cardiovascular Surgery 2020;49(5):288-290
A 65-year-old man who had been taking warfarin for a mitral mechanical valve, was transported to our hospital for acute heart failure 3 months after switching to edoxaban. The fluoroscopy revealed restriction of the mechanical valve opening, and the catheterization showed an increased pressure gradient of the mechanical valve. The patient was diagnosed with valve thrombosis, and emergency redo mitral valve replacement was performed. The patient recovered well without complication. In cases with mechanical heart valves, sufficient explanation and education about warfarin administration is mandatory for patients' home doctors as well as patients and their families.
2.A Calcified Amorphous Tumor from the Aortic Valve to the Tricuspid Valve with Aortic Valve Stenosis
Takashi HARADA ; Hideki SASAKI ; Hiroshi ISHITOYA
Japanese Journal of Cardiovascular Surgery 2020;49(2):58-61
We report a rare case of a hemodialysis patient with calcified amorphous tumor (CAT) originating from aortic valve cusp that continues to tricuspid valve, which may be related to aortic annular calcification and aortic valve stenosis. A 79-year-old female with chronic kidney disease on hemodialysis for 16 years was transferred to our hospital with loss of consciousness. Echocardiography revealed aortic valve stenosis and presence of tumor on the aortic valve and tricuspid valve. We suspected the presence of a cardiac tumor or vegetation. We underwent tumor resection of tricuspid valve and aortic valve replacement and coronary artery bypass grafting (SVG-RCA). Pathological findings of the tumor was CAT.
3.Efficacy and safety of cold forceps polypectomy utilizing the jumbo cup: a prospective study
Hiroshi HASEGAWA ; Shigeki BAMBA ; Kenichiro TAKAHASHI ; Masaki MURATA ; Taketo OTSUKA ; Hiroshi MATSUMOTO ; Takehide FUJIMOTO ; Rie OSAK ; Hirotsugu IMAEDA ; Atsushi NISHIDA ; Hiromitsu BAN ; Ayano SONODA ; Osamu INATOMI ; Masaya SASAKI ; Mitsushige SUGIMOTO ; Akira ANDOH
Intestinal Research 2019;17(2):265-272
BACKGROUND/AIMS: There are few prospective studies on cold forceps polypectomy (CFP) using jumbo cup forceps. Therefore, we examined patients with diminutive polyps (5 mm or smaller) treated with CFP using jumbo cup forceps to achieve an adenoma-free colon and also assessed the safety of the procedure and the recurrence rate of missed or residual polyp after CFP by performing follow-up colonoscopy 1 year later. METHODS: We included patients with up to 5 adenomas removed at initial colonoscopy and analyzed data from a total of 361 patients with 573 adenomas. One-year follow-up colonoscopy was performed in 165 patients, at which 251 lesions were confirmed. RESULTS: The one-bite resection rate with CFP was highest for lesions 3 mm or smaller and decreased significantly with increasing lesion size. Post-procedural hemorrhage was observed in 1 of 573 lesions (0.17%). No perforation was noted. The definite recurrence rate was 0.8% (2/251 lesions). The probable recurrence rate, which was defined as recurrence in the same colorectal segment, was 17%. Adenoma-free colon was achieved in 55% of patients at initial resection. Multivariate analysis revealed that achievement of an adenoma-free colon was significantly associated with number of adenomas and years of endoscopic experience. CONCLUSIONS: CFP using jumbo biopsy forceps was safe and showed a high one-bite resection rate for diminutive lesions of 3 mm or smaller. The low definite recurrence rate confirms the reliability of CFP using jumbo biopsy forceps. Number of adenomas and years of endoscopic experience were key factors in achieving an adenoma-free colon.
Adenoma
;
Biopsy
;
Colon
;
Colonoscopy
;
Follow-Up Studies
;
Hemorrhage
;
Humans
;
Multivariate Analysis
;
Polyps
;
Prospective Studies
;
Recurrence
;
Surgical Instruments
4.Predicting outcomes to optimize disease management in inflammatory bowel disease in Japan: their differences and similarities to Western countries.
Taku KOBAYASHI ; Tadakazu HISAMATSU ; Yasuo SUZUKI ; Haruhiko OGATA ; Akira ANDOH ; Toshimitsu ARAKI ; Ryota HOKARI ; Hideki IIJIMA ; Hiroki IKEUCHI ; Yoh ISHIGURO ; Shingo KATO ; Reiko KUNISAKI ; Takayuki MATSUMOTO ; Satoshi MOTOYA ; Masakazu NAGAHORI ; Shiro NAKAMURA ; Hiroshi NAKASE ; Tomoyuki TSUJIKAWA ; Makoto SASAKI ; Kaoru YOKOYAMA ; Naoki YOSHIMURA ; Kenji WATANABE ; Miiko KATAFUCHI ; Mamoru WATANABE ; Toshifumi HIBI
Intestinal Research 2018;16(2):168-177
Inflammatory bowel disease (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), is a chronic inflammatory disease of the gastrointestinal tract, with increasing prevalence worldwide. IBD Ahead is an international educational program that aims to explore questions commonly raised by clinicians about various areas of IBD care and to consolidate available published evidence and expert opinion into a consensus for the optimization of IBD management. Given differences in the epidemiology, clinical and genetic characteristics, management, and prognosis of IBD between patients in Japan and the rest of the world, this statement was formulated as the result of literature reviews and discussions among Japanese experts as part of the IBD Ahead program to consolidate statements of factors for disease prognosis in IBD. Evidence levels were assigned to summary statements in the following categories: disease progression in CD and UC; surgery, hospitalization, intestinal failure, and permanent stoma in CD; acute severe UC; colectomy in UC; and colorectal carcinoma and dysplasia in IBD. The goal is that this statement can aid in the optimization of the treatment strategy for Japanese patients with IBD and help identify high-risk patients that require early intervention, to provide a better long-term prognosis in these patients.
Asian Continental Ancestry Group
;
Colectomy
;
Colitis, Ulcerative
;
Colorectal Neoplasms
;
Consensus
;
Crohn Disease
;
Disease Management*
;
Disease Progression
;
Early Intervention (Education)
;
Epidemiology
;
Expert Testimony
;
Gastrointestinal Tract
;
Hospitalization
;
Humans
;
Inflammatory Bowel Diseases*
;
Japan*
;
Prevalence
;
Prognosis
5.Generation of Induced Pluripotent Stem Cells and Neural Stem/Progenitor Cells from Newborns with Spina Bifida Aperta.
Yohei BAMBA ; Masahiro NONAKA ; Natsu SASAKI ; Tomoko SHOFUDA ; Daisuke KANEMATSU ; Hiroshi SUEMIZU ; Yuichiro HIGUCHI ; Ritsuko K POOH ; Yonehiro KANEMURA ; Hideyuki OKANO ; Mami YAMASAKI
Asian Spine Journal 2017;11(6):870-879
STUDY DESIGN: We established induced pluripotent stem cells (iPSCs) and neural stem/progenitor cells (NSPCs) from three newborns with spina bifida aperta (SBa) using clinically practical methods. PURPOSE: We aimed to develop stem cell lines derived from newborns with SBa for future therapeutic use. OVERVIEW OF LITERATURE: SBa is a common congenital spinal cord abnormality that causes defects in neurological and urological functions. Stem cell transplantation therapies are predicted to provide beneficial effects for patients with SBa. However, the availability of appropriate cell sources is inadequate for clinical use because of their limited accessibility and expandability, as well as ethical issues. METHODS: Fibroblast cultures were established from small fragments of skin obtained from newborns with SBa during SBa repair surgery. The cultured cells were transfected with episomal plasmid vectors encoding reprogramming factors necessary for generating iPSCs. These cells were then differentiated into NSPCs by chemical compound treatment, and NSPCs were expanded using neurosphere technology. RESULTS: We successfully generated iPSC lines from the neonatal dermal fibroblasts of three newborns with SBa. We confirmed that these lines exhibited the characteristics of human pluripotent stem cells. We successfully generated NSPCs from all SBa newborn-derived iPSCs with a combination of neural induction and neurosphere technology. CONCLUSIONS: We successfully generated iPSCs and iPSC-NSPCs from surgical samples obtained from newborns with SBa with the goal of future clinical use in patients with SBa.
Cells, Cultured
;
Ethics
;
Fibroblasts
;
Humans
;
Induced Pluripotent Stem Cells*
;
Infant, Newborn*
;
Meningomyelocele
;
Plasmids
;
Pluripotent Stem Cells
;
Regenerative Medicine
;
Skin
;
Spina Bifida Cystica*
;
Spinal Cord
;
Spinal Dysraphism*
;
Stem Cell Transplantation
;
Stem Cells
6.Extraction of items identifying hiesho (cold disorder) and their utility in young males and females.
Shunji SAKAGUCHI ; Hiroshi KUGE ; Hidetoshi MORI ; Junji MIYAZAKI ; Tim Hideaki TANAKA ; Kazuyo HANYU ; Taro TAKEDA ; Kazuro SASAKI
Journal of Integrative Medicine 2016;14(1):36-43
OBJECTIVEHie (cold sensation) is one of the most common health complaints in Japan. Those who suffer from severe hie are considered as having hiesho (cold disorder). However, exact hiesho symptoms have not been defined clearly and the decision as to whether a person suffers from hiesho is subjective and based on self-awareness. The study was conducted in attempt to develop a standardized hiesho diagnostic scale.
METHODSSubjects comprised 1 146 students. From the self-awareness of hiesho symptoms, males and females were divided into hiesho and non-hiesho groups. Physical, behavioral and adaptive characteristics were compared using the 24-item questionnaire (four-grade survey) and indicators for hiesho symptoms were extracted. Based on the scores, a receiver operating characteristic curve was drawn for the total ordinal scale score of the extracted items in relation to the presence and absence of hiesho symptoms, and an optimal cutoff value was determined.
RESULTSThe self-awareness of having hiesho was found in 23.2% males and in 55.6% females. The sensitivity was 84.5% for males and 83.3% for females in the hiesho groups, and the specificity was 86.0% for males and 85.2% for females in the non-hiesho groups.
CONCLUSIONA questionnaire consisting of the extracted items may be useful to identify hiesho in young males and females with a high level of accuracy.
Adult ; Cold Temperature ; Female ; Humans ; Male ; Surveys and Questionnaires ; Thermosensing
7.Palonosetron versus granisetron in combination with aprepitant for the prevention of chemotherapy-induced nausea and vomiting in patients with gynecologic cancer.
Satoe FUJIWARA ; Yoshito TERAI ; Satoshi TSUNETOH ; Hiroshi SASAKI ; Masanori KANEMURA ; Masahide OHMICHI
Journal of Gynecologic Oncology 2015;26(4):311-319
OBJECTIVE: There is no research regarding the appropriate antiemetic agents for female patients, especially those receiving moderately emetogenic chemotherapy (MEC). We evaluated the antiemetic efficacy of a combination of 5-HT3 receptor with/without aprepitant in patients with gynecological cancer treated with the TC (paclitaxel and carboplatin) regimen of MEC. METHODS: We enrolled 38 patients diagnosed with gynecologic cancer and scheduled to receive the TC regimen. The patients were randomly assigned to receive a 5-HT3 receptor antagonist, either palonosetron in the first cycle followed by granisetron in the second cycle or vice versa. In the third cycle, all patients received a combination of the 5-HT3 receptor and dexamethasone with/without aprepitant. RESULTS: When three drugs were administered, palonosetron consistently produced an equivalent complete response (CR) rate to granisetron in the acute phase (89.5% vs. 86.8%, p=0.87) and delayed phase (60.5% vs. 65.8%, p=0.79). With regard to the change in dietary intake, palonosetron exhibited similar efficacy to granisetron in the acute phase (92.1% vs. 89.4%, p=0.19) and delayed phase (65.7% vs. 68.4%, p=0.14). However, in the delayed phase, the addition of aprepitant therapy with a 5-HT3 receptor antagonist and dexamethasone produced a higher CR rate than a 5-HT3 receptor antagonist with dexamethasone (93.3% vs. 47.8%, p<0.001) and allowed the patients to maintain a higher level of dietary intake (93.3% vs. 56.5%, p<0.001). CONCLUSION: The addition of aprepitant therapy was more effective than the control therapy of a 5-HT3 receptor antagonist, and dexamethasone in gynecological cancer patients treated with the TC regimen.
Adult
;
Aged
;
Antiemetics/*administration & dosage
;
Antineoplastic Combined Chemotherapy Protocols/adverse effects
;
Carboplatin/administration & dosage/adverse effects
;
Cross-Over Studies
;
Diet
;
Drug Administration Schedule
;
Female
;
Genital Neoplasms, Female/*drug therapy
;
Granisetron/administration & dosage
;
Humans
;
Isoquinolines/administration & dosage
;
Middle Aged
;
Morpholines/administration & dosage
;
Nausea/chemically induced/*prevention & control
;
Paclitaxel/administration & dosage/adverse effects
;
Quinuclidines/administration & dosage
;
Serotonin 5-HT3 Receptor Antagonists
;
Vomiting/chemically induced/*prevention & control
8.Pulmonary Metastases After Low-Dose-Rate Brachytherapy for Localized Prostate Cancer.
Masahito KIDO ; Hidetoshi KURUMA ; Hiroshi SASAKI ; Kenta MIKI ; Manabu AOKI ; Takahiro KIMURA ; Hiroyuki TAKAHASH ; Chihiro KANEHIRA ; Shin EGAWA
Korean Journal of Urology 2014;55(5):309-314
PURPOSE: To analyze unusual events and focus discussion on pulmonary metastasis in particular after low-dose-rate brachytherapy (LDR-BT) for prostate cancer (PCa). MATERIALS AND METHODS: A total of 616 consecutive patients who had undergone LDR-BT for clinically localized PCa at Jikei University Hospital between October 2003 and April 2010 were enrolled in this study. Follow-up information was summarized, and patterns of biochemical recurrence and clinical outcome were investigated. RESULTS: Disease risk was stratified as low-risk in 231 patients, intermediate-risk in 365, and high-risk in 20, respectively. Of these patients, 269 (43.7%) had received hormonal therapy (HT) in combination with LDR-BT, and 80 (13.0%) had received external beam radiotherapy (EBRT). Average dosimetric parameter values with and without EBRT were 95.3% and 94.2% for V100, 132.8 Gy and 164.2 Gy for D90, and 180.6 Gy2 and 173.7 Gy2 for the biologically effective dose. Biochemical recurrence was noted in 14 patients (6.1%) in the low-risk group, 25 patients (6.8%) in the intermediate-risk group, and 6 patients (30.0%) in the high-risk group, respectively. In these cases of biochemical recurrence, 9 (64.3%), 13 (52.0%), and 4 patients (66.7%) in each respective risk group showed signs of clinical recurrence. Five patients (19.2%) with clinical recurrence developed pulmonary metastases, of which 4 were isolated lesions. All tumors responded favorably to subsequent HT. CONCLUSIONS: LDR-BT for biologically aggressive PCa may be linked to possible pulmonary metastasis owing to tumor dissemination during seed implantation. This information is important in planning adequate treatment for these patients.
Brachytherapy*
;
Follow-Up Studies
;
Humans
;
Neoplasm Metastasis*
;
Passive Cutaneous Anaphylaxis
;
Prostatic Neoplasms*
;
Radiotherapy
;
Recurrence
9.Effect of Fermented Okara Feeding on Cecum Microflora in Rat
Masato NISHI ; Yasunori KURITA ; Hiroshi MATSUI ; Hidehiko KUMAGAI ; Harumi TAKE ; Toshihide MICHIHATA ; Tetsuya SASAKI ; Masao KAWASHIMA ; Eiji FUJIHARA ; Takashi KUDA ; Takashi KOYANAGI ; Toshiki ENOMOTO
Japanese Journal of Complementary and Alternative Medicine 2014;11(2):89-94
Objective: The purpose of this study was to confirm the effect of feeding Okara fermented by Bacillus coagulans on cecum microflora in rat. Method: Three groups of SD rat of 8 weeks old were used in the experiment. The experimental animals were fed control diet, 2% okara diet, 2% fermented okara diet in each group for two weeks. The experimental diet and water were provided ad libitum. Food intake was measured every day. After 24 hours fast, we performed drawing blood with heparin after the experimental period. After drawing blood, several organs were removed for measuring their weight. In addition, we removed cecum after drawing blood about each three groups and studied their microflora. We also measured about plasma albumin, ALT, AST, ALP, LDH, total cholesterol, triacylglycerol, glucose, and cytokine level. Result: Bifidobacteria of cecum and blood IFN-g levels significantly increased in the fermented okara group. The total cholesterol level in blood significantly decreased. Conclusion: Okara fermented by Bacillus coagulans had an influence on not only intestinal microflora but also the immune system in rat, suggesting that the fermented okara can expect development as functional materials.
10.Cerebral Infarction after Hybrid Arch TEVAR
Toshiki Fujiyoshi ; Hitoshi Matsuda ; Keitaro Domae ; Yutaka Iba ; Hiroshi Tanaka ; Hiroaki Sasaki ; Kenji Minatoya ; Junjiro Kobayashi
Japanese Journal of Cardiovascular Surgery 2013;42(4):255-259
Among 62 patients who underwent hybrid arch TEVAR, which is a combination of supra-aortic bypass and TEVAR to treat arch aneurysm, 5 patients encountered postoperative cerebral infarction. In 2 patients, whose thoracic aorta were extremely shaggy, cerebral infarction were multiple and fatal. Other 3 patients, whose aorta were not shaggy, developed visual disturbance after TEVAR and minor cerebral infarction were detected in the area of vertebral artery. To prevent cerebral infarction after hybrid arch TEVAR, the blood flow from the left subclavian to vertebral artery is considered to be significant.


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