1.Summer camp for childhood cancer survivors operated by medical and nursing students
Kosuke KURIHARA ; Hiroki HORI ; Yusuke KOBAYAKAWA ; Naoki TSUBOYA ; Satoshi OKAMURA ; Sayaka SEKOGUCHI ; Yoshihiro KOMADA
Medical Education 2009;40(6):469-473
1) A total of 60 medical and nursing student volunteers operated summer camps for 37 childhood cancer survivors treated at Mie University Hospital and for 51 members of their families in August, 2007 and 2008.2) A questionnaire survey (response rate, 81%; N=47) revealed that the students were seeking to make valuable contributions and to gain benefits for their future careers.3)The students were able to deepen their understanding of childhood cancer survivors and their families.
2.Simple Excision for Cardiac Fibroelastomas Arising from Three Leaflets of the Aortic Valve
Yuichiro Hirata ; Keiichiro Tayama ; Koichiro Shimoishi ; Yusuke Shintani ; Hidetsugu Hori ; Teiji Okazaki ; Kenichi Kosuga
Japanese Journal of Cardiovascular Surgery 2016;45(1):41-44
Cardiac papillary fibroelastomas are rare but are still the second most common benign cardiac tumor ; after myxoma. While cardiac papillary fibroelastomas are benign, there is the potential for severe complications related to embolism. Consequently, a surgical treatment approach is generally recommended. Nevertheless, from the risk of the recurrence of tumor and the valve insufficiency, the excision range is still controversial, particularly with tumors arising from the valve. We report the case of a 66-year-old woman who underwent resection of cardiac papillary fibroelastomas arising from three leaflets of the aortic valves. We performed simple excision without valve surgery and obtained an uneventful prognosis. At 18 months after surgery, no recurrence of tumors was recognized. We consider that it is possible to resect cardiac papillary fibroelastomas without performing valve repair or replacement if they are removed carefully even if the tumors arise from three leaflets of an aortic valve.
3.Long-term dexamethasone treatment diminishes store-operated Ca2+ entry in salivary acinar cells
Kusuda YUICHIRO ; Kondo YUSUKE ; Miyagi YUTA ; Munemasa TAKASHI ; Hori YUSUKE ; Aonuma FUMIKO ; Tsuka SHINTARO ; Mukaibo TARO ; Masaki CHIHIRO ; Hosokawa RYUJI
International Journal of Oral Science 2019;11(1):25-32
Corticosteroids are used in the treatment of many diseases;however,they also induce various side effects.Dexamethasone is one of the most potent corticosteroids,and it has been reported to induce the side effect of impaired salivary gland function.This study aimed to evaluate the effects of dexamethasone on mouse submandibular gland function to gain insight into the mechanism of dexamethasone-induced salivary hypofunction.The muscarinic agonist carbachol (CCh) induced salivary secretion and was not affected by short-term dexamethasone treatment but was decreased following long-term dexamethasone administration.The expression levels of the membrane proteins Na+-K+-2Cl-cotransporter,transmembrane member 16A,and aquaporin 5 were comparable between the control and long-term dexamethasone treatment groups.The CCh-induced increase in calcium concentration was significantly lower in the presence of extracellular Ca2+ in the long-term dexamethasone treatment group compared to that in the control group.Furthermore,CCh-induced salivation in the absence of extracellular Ca2+ and Ca2+ ionophore A23187-induced salivation was comparable between the control and long-term dexamethasone treatment groups.Moreover,salivation induced by the Ca2+-ATPase inhibitor thapsigargin was diminished in the long-term dexamethasone treatment group.In summary,these results demonstrate that short-term dexamethasone treatment did not impair salivary gland function,whereas long-term dexamethasone treatment diminished store-operated Ca2+ entry,resulting in hyposalivation in mouse submandibular glands.
4.A Left Ventricular Pseudoaneurysm Related to Infective Endocarditis in the Mitral Valve
Yusuke Takei ; Ikuko Shibasaki ; Riha Shimizu ; Go Tsuchiya ; Takayuki Hori ; Toshiyuki Kuwata ; Yuho Inoue ; Yasuyuki Yamada ; Hirotsugu Fukuda
Japanese Journal of Cardiovascular Surgery 2014;43(1):15-18
A 78-year-old woman who had undergone an axillobifemoral artery bypass with a prosthetic graft for Leriche syndrome presented 1 month later with cough and fever. A clinical examination revealed obvious redness in the right groin. Routine laboratory tests uncovered inflammation and methicillin-sensitive-Staphylococcus aureus was cultured from blood samples. Mitral valve vegetations were identified by echocardiography, and after a diagnosis of infective endocarditis, specific intravenous antibiotics were immediately administered. One month later, CT revealed a large pseudoaneurysm of the posterior left ventricular wall that had not been present at the time of admission. Transesophageal echocardiography and magnetic resonance imaging showed an aneurysmal cavity arising from the wall just below the posterior mitral valve leaflet. The patient agreed to undergo cardiac surgery due to the high likelihood that the pseudoaneurysm would rupture. The mitral annulus and leaflet were normal at surgery. We resected the posterior leaflet, closed the cavity using a Xenomedica patch, and reconstructed the leaflet. We did not remove the pseudoaneurysm using an extracardiac approach because the likelihood of damaging the coronary arteries and the coronary sinus was quite high. The postoperative course was uneventful. At follow-up 1 year later, the patient was afebrile and both CT and echocardiography showed that the cavity was completely filled by the thrombus. The imaging findings were useful in determining the surgical approach.
5.Prefectural difference in spontaneous intracerebral hemorrhage incidence in Japan analyzed with publically accessible diagnosis procedure combination data: possibilities and limitations.
Epidemiology and Health 2016;38(1):e2016028-
OBJECTIVES: Annually reported, publically accessible Diagnosis Procedure Combination (DPC) data from the Japanese government is a part of the total DPC database of the Japanese medical reimbursement system for hospitalization. Although medical issues can be evaluated with these data promptly, the applicability of these data in epidemiological analyses has not been assessed. METHODS: We performed analyses using only statistical indices reported on the a government website. As a preliminary step, the prefectural consistency of spontaneous intracerebral hemorrhage (sICH) was examined with prefectural mortality over 20 years. Then the prefectural incidence of sICH for four years was calculated, utilizing publically accessible DPC data. To determine its reliability, the consistency was examined, and correlations were analyzed with three prefectural factors expected to have an effect: the elderly rate, mortality due to sICH, and the non-DPC bed rate. In addition, a comparison model between prefectures with this method was developed by analyzing other prefecture-specific factors. RESULTS: Prefectural mortality due to sICH and prefectural sICH incidence in the DPC database were both consistent over the years. Prefectural sICH incidence had a constant positive correlation with the elderly rate, a partial correlation with mortality due to sICH, but no correlation with the non-DPC bed rate, which is one of the major biases when utilizing the DPC database. In the comparison model, the factors of low income and alcohol consumption showed increased sICH incidence. CONCLUSIONS: Although careful attention to its limitations is required, publically accessible DPC data will provide insights into epidemiological issues.
Aged
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Alcohol Drinking
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Asian Continental Ancestry Group
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Bias (Epidemiology)
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Cerebral Hemorrhage*
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Diagnosis*
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Hospitalization
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Humans
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Incidence*
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Japan*
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Methods
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Mortality
6.Chronic Stress Induces Neurotrophin-3 in Rat Submandibular Gland.
Juri SARUTA ; Michitaro IIDA ; Yusuke KONDO ; Masahiro TO ; Takashi HAYASHI ; Mayumi HORI ; Sadao SATO ; Keiichi TSUKINOKI
Yonsei Medical Journal 2012;53(6):1085-1092
PURPOSE: Plasma neurotrophin-3 (NT-3) levels are associated with several neural disorders. We previously reported that neurotrophins were released from salivary glands following acute immobilization stress. While the salivary glands were the source of plasma neurotrophins in that situation, the association between the expression of neurotrophins and the salivary gland under chronic stress conditions is not well understood. In the present study, we investigated whether NT-3 levels in the salivary gland and plasma were influenced by chronic stress. MATERIALS AND METHODS: Expressions of NT-3 mRNA and protein were characterized, using real-time polymerase chain reactions, enzyme-linked immunosorbent assay, and immunohistochemistry, in the submandibular glands of male rats exposed to chronic stress (12 h daily for 22 days). RESULTS: Plasma NT-3 levels were significantly increased by chronic stress (p<0.05), and remained elevated in bilaterally sialoadenectomized rats under the same condition. Since chronic stress increases plasma NT-3 levels in the sialoadenectomized rat model, plasma NT-3 levels were not exclusively dependent on salivary glands. CONCLUSION: While the salivary gland was identified in our previous study as the source of plasma neurotrophins during acute stress, the exposure to long-term stress likely affects a variety of organs capable of releasing NT-3 into the bloodstream. In addition, the elevation of plasma NT-3 levels may play important roles in homeostasis under stress conditions.
Animals
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Male
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Neurotrophin 3/*blood/genetics
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Rats
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Rats, Sprague-Dawley
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Stress, Physiological/*physiology
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Submandibular Gland/*metabolism
7.Utility of Discography as a Preoperative Diagnostic Tool for Intradural Lumbar Disc Herniation.
Tomiya MATSUMOTO ; Hiromitsu TOYODA ; Hidetomi TERAI ; Sho DOHZONO ; Yusuke HORI ; Hiroaki NAKAMURA
Asian Spine Journal 2016;10(4):771-775
Preoperative definitive diagnosis of intradural lumbar disc herniation (ILDH) is difficult despite the availability of various neuroradiological investigative tools. We present a case of ILDH diagnosed preoperatively by discography and computed tomography-discography (disco-CT).The patient was a 63-year-old man with acute excruciating right leg pain. Discography and disco-CT demonstrated leakage of the contrast medium into the intradural space. Based on these findings, a right L5 nerve root disturbance caused by ILDH was diagnosed. A right L5 hemi-laminectomy and a dorsal durotomy were performed. The herniated disc was carefully dissected and then completely removed. Three months after surgery, the patient had fully recovered. This report highlights the importance of making a definitive diagnosis of ILDH preoperatively for better surgical planning and improved clinical outcomes. Furthermore, discography and disco-CT are both useful preoperative diagnostic tools for the diagnosis of ILDH.
Diagnosis
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Humans
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Intervertebral Disc Displacement
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Leg
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Middle Aged
8.Response to the Letter to the Editor: “Do different pathologies of adult spinal deformity (idiopathic lumbar scoliosis against de novo lumbar scoliosis) affect preoperative and postoperative selfimage?
Hiroshi TANIWAKI ; Akira MATSUMURA ; Yuki KINOSHITA ; Masatoshi HOSHINO ; Takashi NAMIKAWA ; Yusuke HORI ; Hiroaki NAKAMURA
Asian Spine Journal 2024;18(5):755-756
9.Autogenic Rib Graft for Atlantoaxial and Occipitocervical Fixation in Pediatric Patients
Akira MATSUMURA ; Takashi NAMIKAWA ; Minori KATO ; Yusuke HORI ; Masayoshi IWAMAE ; Noriaki HIDAKA ; Sadahiko KONISHI ; Hiroaki NAKAMURA
Asian Spine Journal 2019;13(5):713-720
STUDY DESIGN: Retrospective case series. PURPOSE: To evaluate surgical outcomes and effectiveness of an autogenic rib graft for upper cervical fixation in pediatric patients. OVERVIEW OF LITERATURE: Autogenic bone grafts have long been considered the ‘gold standard’ bone source for posterior cervical fusion in pediatric patients. However, there are some unsolved problems associated with donor-site morbidity and amount of bone grafting. METHODS: We studied five consecutive pediatric patients who underwent atlantoaxial fixation or occipitocervical fixation (OCF) using an autogenic rib graft with at least 2 years of follow-up (mean age, 9.8 years; mean follow-up period, 73.0 months). Two patients underwent OCF without screw-rod constructs and three patients with screw-rod constructs. Autogenic rib grafts were used in all patients. We evaluated the surgical outcomes including radiographic parameter, bony union, and perioperative complications. RESULTS: The atlantoaxial interval (ADI) was corrected from 11.6 to 6.0 mm, and the C1–2 angle was corrected −14.8° to 7.8°. The C2–7 angle was reduced from 31° to 9° spontaneously. Two patients with OCF required revision surgery due to loss of correction. Patients did not experience any complication associated with the donor sites (rib bone grafts). Six months postoperation X-rays clearly showed regeneration of the rib at the donor sites. Bony fusion was achieved in all patients; however, bony fusion occurred more slowly in patients without screw-rod constructs compared with patients with screw-rod constructs. Bone regeneration of the rib was observed in all patients with no complications at the donor site. CONCLUSIONS: Autogenic rib grafts have advantages of potential bone regeneration, high fusion rate, and low donor-site morbidity. In addition, a screw-rod construct provides better bony fusion in pediatric patients with OCF and atlantoaxial fixation.
10.Do different pathologies of adult spinal deformity (idiopathic lumbar scoliosis against de novo lumbar scoliosis) affect preoperative and postoperative selfimage?
Hiroshi TANIWAKI ; Akira MATSUMURA ; Yuki KINOSHITA ; Masatoshi HOSHINO ; Takashi NAMIKAWA ; Yusuke HORI ; Hiroaki NAKAMURA
Asian Spine Journal 2024;18(3):354-361
Methods:
This study enrolled 60 patients who underwent corrective surgery and were followed up for >2 years postoperatively. AdIS was defined as adolescent idiopathic scoliosis in patients who had no history of corrective surgery, had a primary thoracolumbar/lumbar (TL/L) curve, and were ≥30 years old at the time of surgery.
Results:
The AdIS (n=23; mean age, 53.1 years) and de novo (n=37; mean age, 70.0 years) groups were significantly different in terms of the main thoracic and TL/L curves, sagittal vertical axis, thoracic kyphosis, and thoracolumbar kyphosis preoperatively. The scores in the self-image domain of the SRS-22r (before surgery/2 years after surgery [PO2Y]) were 2.2/4.4 and 2.3/3.7 in the AdIS and de novo groups, respectively, and PO2Y was significantly different between the two groups (p<0.001). Multivariate regression analysis revealed that AdIS was an independent factor associated with self-image at PO2Y (p=0.039).
Conclusions
AdIS, a spinal deformity pathology, was identified as a significant factor associated with the self-image domain of SRS-22r in patients who underwent corrective surgery. AdIS is not solely classified based on pathology but also differs in terms of the clinical aspect of self-image improvement following corrective surgery.