1.How to Innovate Initial Postgraduate Clinical Training
Junji OHTAKI ; Haku ISHIDA ; Koji SENSAKI ; Ritsuko YAMAMOTO ; Shuji MIYAKE
Medical Education 1988;19(6):418-418,423
2.A Case of Combined Redo Off-Pump CABG with Right Gastroepiploic Artery and Abdominal Aortic Aneurysm Repair
Yoshiharu Nishimura ; Yoshitaka Okamura ; Keiichi Fujiwara ; Hiroyoshi Sekii ; Shuji Yamamoto ; Takayuki Kuriyama ; Kouji Toguchi ; Kentarou Honda
Japanese Journal of Cardiovascular Surgery 2003;32(3):164-167
A case of combined redo off-pump CABG (OPCAB) with right gastroepiploic artery and abdominal aortic aneurysm repair is reported. A 71-year-old man with a previous history of CABG was admitted for the operation of recurrent angina pectoris and known abdominal aortic aneurysm. Preoperative coronary angiograms showed obstruction of LITA graft for LAD. The operative procedure consisted of redo OPCAB using right gastroepiploic artery as a transdiaphragmatic graft under left antero-lateral thoracotomy and graft replacement of abdominal aortic aneurysm under median laparotomy simultaneously. This strategy has the advantage of avoiding the continuity of median sternotomy and laparotomy and contributes to the minimally invasive procedure in the combined operation.
3.Pilot Study for Considering Subthalamic Nucleus Anatomy during Stimulation Using Directional Leads
Takashi ASAHI ; Kiyonobu IKEDA ; Jiro YAMAMOTO ; Hiroyuki TSUBONO ; Shuji SATO
Journal of Movement Disorders 2019;12(2):97-102
OBJECTIVE: Directional leads are used for deep brain stimulation (DBS). Two of the four contacts of the leads are divided into three parts, enabling controlled stimulation in a circumferential direction. The direction of adverse effects evoked by DBS in the subthalamic nucleus (STN) and stimulation strategies using directional leads were evaluated. METHODS: Directional leads were implanted into the bilateral STN of six parkinsonian patients (1 man, 5 women; mean age 66.2 years). The contact centers were located within the upper border of the STN, and the locations were identified electrically using microrecordings. Adverse effects were evaluated with electrical stimulation (30 μs, 130 Hz, limit 11 mA) using the directional part of each lead after surgery, and the final stimulation direction was investigated. Unified Parkinson's disease rating scale (UPDRS) scores were evaluated before and after DBS. RESULTS: Fifty-six motor and four sensory symptoms were evoked by stimulation; no adverse effect was evoked in 14 contacts. Motor and sensory symptoms were evoked by stimulation in the anterolateral direction and medial to posterolateral direction, respectively. Stimulation in the posteromedial direction produced adverse effects less frequently. The most frequently used contacts were located above the STN (63%), followed by the upper part of the STN (32%). The mean UPDRS part III and dyskinesia scores decreased after DBS from 30.2 ± 11.7 to 7.2 ± 2.9 and 3.3 ± 2.4 to 0.5 ± 0.8, respectively. CONCLUSION: The incidence of adverse effects was low for the posteromedial stimulation of the STN. Placing the directional part of the lead above the STN may facilitate the control of dyskinesia.
Deep Brain Stimulation
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Dyskinesias
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Electric Stimulation
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Female
;
Humans
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Incidence
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Parkinson Disease
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Pilot Projects
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Subthalamic Nucleus
4.Maternal and fetal outcomes in pregnant Japanese women with inflammatory bowel disease: our experience with a series of 23 cases.
Naoki MINAMI ; Minoru MATSUURA ; Yorimitsu KOSHIKAWA ; Satoshi YAMADA ; Yusuke HONZAWA ; Shuji YAMAMOTO ; Hiroshi NAKASE
Intestinal Research 2017;15(1):90-96
BACKGROUND/AIMS: Our physicians work to expand the possibilities to treat female patients with inflammatory bowel disease (IBD) who wish to become pregnant. Although many drugs, including 5-aminosalicylate (5-ASA), corticosteroids, immunomodulators, and biologics, are used safely during pregnancy, few reports have described the therapeutic regimen throughout pregnancy and the management of patients who relapse during pregnancy precisely. The aim of this study was to assess the management of patients with IBD during pregnancy. METHODS: We identified 19 patients (five with Crohn's disease and 14 with ulcerative colitis [UC]) who became pregnant with a total of 23 pregnancies between May 2005 and May 2015 by reviewing the medical records of Kyoto University Hospital. The following data were collected: the maternal variables, the IBD treatment type, the disease activity, the pregnancy outcome, and the mode of delivery. RESULTS: Among the 19 patients, 18 had become pregnant after being diagnosed with IBD, while one had developed UC newly after pregnancy. Throughout the gestation, all patients were treated with probiotics, 5-ASA, prednisolone, cytapheresis, or infliximab. The relapse rate during pregnancy was 21.7% (5/23 cases). The five patients who experienced a relapse were able to pursue their pregnancy after intensification of their treatments. There were no adverse fetal or neonatal problems, except in one case that required an emergency Caesarean section because of placental dysfunction and in which a very low-birth-weight infant was born preterm. CONCLUSIONS: Our present data confirmed that even if the disease flares up during pregnancy, good pregnancy outcomes can be achieved with an optimal intensification of the patient's treatment.
Adrenal Cortex Hormones
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Asian Continental Ancestry Group*
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Biological Products
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Cesarean Section
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Colitis, Ulcerative
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Crohn Disease
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Cytapheresis
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Emergencies
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Female
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Humans
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Immunologic Factors
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Infant, Low Birth Weight
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Infant, Newborn
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Inflammatory Bowel Diseases*
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Infliximab
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Medical Records
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Mesalamine
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Prednisolone
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Pregnancy
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Pregnancy Outcome
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Probiotics
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Recurrence
5.The association of follicular fluid volume with human oolemma stretchability during intracytoplasmic sperm injection.
Taketo INOUE ; Yoshiki YAMASHITA ; Yoshiko TSUJIMOTO ; Shuji YAMAMOTO ; Sayumi TAGUCHI ; Kayoko HIRAO ; Mikiko UEMURA ; Kayoe IKAWA ; Kazunori MIYAZAKI
Clinical and Experimental Reproductive Medicine 2017;44(3):126-131
OBJECTIVE: Oocyte degeneration often occurs after intracytoplasmic sperm injection (ICSI), and the risk factor is low-quality oocytes. The follicular fluid (FF) provides a crucial microenvironment for oocyte development. We investigated the relationships between the FF volume aspirated from individual follicles and oocyte retrieval, oocyte maturity, oolemma stretchability, fertilization, and development. METHODS: This retrospective study included data obtained from 229 ICSI cycles. Ovarian stimulation was performed according to a gonadotropin-releasing hormone antagonist protocol. Each follicle was individually aspirated and divided into six groups according to FF volume (<1.0, 1.0 to <2.0, 2.0 to <3.0, 3.0 to <4.0, 4.0 to <5.0, and ≥5.0 mL). Oolemma stretchability during ICSI was evaluated using a mechanical stimulus for oolemma penetration, that is, the stretchability was assessed by oolemma penetration with aspiration (high stretchability) or without aspiration (low stretchability). RESULTS: Oocyte retrieval rates were significantly lower in the <1.0 mL group than in the ≥1.0 mL groups (46.0% [86/187] vs. 67.5%–74.3% [172/255 to 124/167], respectively; p<0.01). Low oolemma stretchability was significantly more common in the <1.0 mL group than in the ≥1.0 mL groups during ICSI (22.0% [13/59] vs. 5.8%–9.4% [6/104 to 13/139], respectively; p=0.018). There was a relationship between FF volume and oolemma stretchability. However, there were no significant differences in the rates of fertilization, cleavage, ≥7 cells at day 3, and blastocyst development among all groups. CONCLUSION: FF volume is potentially associated with the stretchability of metaphase II oolemma during ICSI. Regarding oolemma stretchability, ensuring a uniform follicular size during ovarian stimulation is crucial to obtain good-quality oocytes.
Blastocyst
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Clothing
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Female
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Fertilization
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Follicular Fluid*
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Gonadotropin-Releasing Hormone
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Humans*
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Infertility
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Membranes
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Metaphase
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Oocyte Retrieval
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Oocytes
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Ovarian Follicle
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Ovulation Induction
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Retrospective Studies
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Risk Factors
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Sperm Injections, Intracytoplasmic*
6.How and When Can Cardiovascular Surgeons Get a Day Off ?? No.2
Kumiko WADA ; Takafumi ABE ; Eigo IKUSHIMA ; Katsuya KAWAGOE ; Tomonori KOGA ; Shuji NAGATOMI ; Hiromitsu TERATANI ; Takeaki HARADA ; Shotaro HIGA ; Eijiro NOGAMI ; Hirofumi YAMAMOTO
Japanese Journal of Cardiovascular Surgery 2020;49(2):2-U1-2-U5
We investigated how cardiovascular surgeons get a day off.
7.Seasonal variations of the prevalence of metabolic syndrome and its markers using big-data of health check-ups.
Hiroe SETO ; Hiroshi TOKI ; Shuji KITORA ; Asuka OYAMA ; Ryohei YAMAMOTO
Environmental Health and Preventive Medicine 2024;29():2-2
BACKGROUND:
It is crucial to understand the seasonal variation of Metabolic Syndrome (MetS) for the detection and management of MetS. Previous studies have demonstrated the seasonal variations in MetS prevalence and its markers, but their methods are not robust. To clarify the concrete seasonal variations in the MetS prevalence and its markers, we utilized a powerful method called Seasonal Trend Decomposition Procedure based on LOESS (STL) and a big dataset of health checkups.
METHODS:
A total of 1,819,214 records of health checkups (759,839 records for men and 1,059,375 records for women) between April 2012 and December 2017 were included in this study. We examined the seasonal variations in the MetS prevalence and its markers using 5 years and 9 months health checkup data and STL analysis. MetS markers consisted of waist circumference (WC), systolic blood pressure (SBP), diastolic blood pressure (DBP), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), fasting plasma glucose (FPG).
RESULTS:
We found that the MetS prevalence was high in winter and somewhat high in August. Among men, MetS prevalence was 2.64 ± 0.42 (mean ± SD) % higher in the highest month (January) than in the lowest month (June). Among women, MetS prevalence was 0.53 ± 0.24% higher in the highest month (January) than in the lowest month (June). Additionally, SBP, DBP, and HDL-C exhibited simple variations, being higher in winter and lower in summer, while WC, TG, and FPG displayed more complex variations.
CONCLUSIONS
This finding, complex seasonal variations of MetS prevalence, WC, TG, and FPG, could not be derived from previous studies using just the mean values in spring, summer, autumn and winter or the cosinor analysis. More attention should be paid to factors affecting seasonal variations of central obesity, dyslipidemia and insulin resistance.
Male
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Female
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Humans
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Metabolic Syndrome/epidemiology*
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Seasons
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Prevalence
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Climate
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Insulin Resistance
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Triglycerides
8.Survey of Fall Rates in Classification of Hypnotics
Haruka YAGI ; Yoshitaka YAMAMOTO ; Ippei USUKUBO ; Yuka YUKA ; Asako SHIMOYAMA ; Shuji AZUMA ; Hirokazu TABATA ; Yasuhiro INAGAKI ; Ryuji KOTERA ; Akio SHIBANAMI
Journal of the Japanese Association of Rural Medicine 2019;68(4):490-495
Hospitalized patients often have insomnia, and in many cases it is necessary to administer hypnotics. Although the hypnotics currently used in Japan are mainly benzodiazepine receptor agonists, there is an associated risk of falling due to muscle relaxant action, and carryover effect. It is believed that orexin receptor antagonists, which have a different mechanism of action from conventional hypnotics, have no muscle relaxant action and are thus considered to be much safer. Therefore, in this study we compared fall rate according to the class of hypnotics that the patient had been taking. We analyzed hospitalized patients taking orexin receptor antagonists (ORB), benzodiazepines (BZDs), and non-BZDs, who had falls and were treated in our hospital from April 1, 2017 to December 31, 2017. Patients were grouped according to the drug they were taking before the fall occurred and the fall rate was calculated and compared. The total number of falls in the target patients was 45, and the total number of people prescribed hypnotics in the study period was 1682. Fall rate by classification of hypnotics was the lowest in the ORB group at 1.45%, which was significantly lower than that of the BZD group, suggesting the possibility that ORBs have minimal influence on falls. In addition, the fall rate in the non-BZD group was significantly lower than that of the BZD group.
9.Stent-Graft Re-expansion Following Axillo-Bifemoral Bypass : A Case of Stent Graft Collapse due to Acute Type B Aortic Dissection
Shuji NAGATOMI ; Hiroyuki YAMAMOTO ; Kenji TOYOKAWA ; Kousuke MUKAIHARA ; Kazuya TERAZONO ; Yuki OGATA ; Yutaka IMOTO
Japanese Journal of Cardiovascular Surgery 2019;48(3):206-209
We describe a rare complication and treatment progression that occurred in a 64-year-old man with an aortic abdominal aneurysm (AAA) that had been treated by endovascular aneurysm repair (EVAR). He had undergone EVAR to treat an infra-renal type AAA 21 months previously and returned to the emergency department with back pain. Contrast-enhanced computed tomography (CT) revealed acute type B aortic dissection, so he was admitted and conservative medical management was started. Acute stomachache and limb pain appeared on hospital day 7, which prevented him from moving his lower limbs. The main body of the stent graft had collapsed, blocking blood flow, and contrast was not found in arteries from the collapsed stent graft portion to the knee level on emergency contrast CT images of the leg. His legs were revascularized by an extra-anatomical right axial-bilateral external iliac bypass. His symptoms disappeared and reperfusion injury was avoided. The collapsed stent graft had retained its original shape at 11 and 18 days after surgery. Furthermore, follow-up CT 4.5 years later showed that the stent graft retained its original form.
10.A Case of Bilateral Coronary Ostial Aneurysms and an Aortic Root Pseudoaneurysm after a Modified Bentall Procedure with the Button Technique
Masaki KOMATSU ; Shuji CHINO ; Toru MIKOSHIBA ; Haruki TANAKA ; Hajime ICHIMURA ; Takateru YAMAMOTO ; Noburo OHASHI ; Megumi FUKE ; Yuko WADA ; Tatsuichiro SETO
Japanese Journal of Cardiovascular Surgery 2020;49(4):210-213
A 62-year-old man with Marfan syndrome had a modified Bentall procedure and total arch replacement for annuloaortic ectasia, aortic insufficiency and thoracic aortic aneurysm fifteen years ago at another hospital. A follow-up CT revealed bilateral coronary artery aneurysms and an aortic root pseudoaneurysm, and thus he was referred to our hospital. The previous prosthetic valve was removed, followed by the re-Bentall procedure. Coronary artery aneurysms were resected and consequently coronary arteries were reconstructed directly. Although the shortcoming of the Bentall procedure was pseudoaneurysm, the outcomes of the modified Bentall procedure have shown some improvements. However, as there is still a high risk of postoperative complication in connective tissue diseases, long-term follow-up is required.