1.Improved Database Management System for Surveillance of Drug-Resistant Microorganisms
Akira HIRAISHI ; Hironori IWANO ; Kazuyo SATO ; Takeshi MATSUMURA ; Tadashi KOISHIZAWA
Journal of the Japanese Association of Rural Medicine 2009;58(1):34-38
In step with the widespread use of antimicrobial agents in medical treatment, microbial substitution and emergence of new drug-resistant bacteria have become life-threatening problem today. Both have resulted from the postopreative practice of administering prophylactic medication and long-term, desultory drug administration. Drug-resistant microbes can occur easily with the inadequate use of drug. Therefore, our hospital has held in check the incidence of drug-resistant microbial infection by letting ICT members make the rounds of the wards and go over the notifications of the prescription of specific antimicrobial agents and the reports on drug-resistant bacteria. At the begiing, the notification and the report were filed separately. Recently, the information obtained from thses two channels has become easier of access because all the necessary data appear on the same screen at once by using patients' IDs. We believe that the streamlining of work and putting two kinds of data together have proved very usefull for infection control, as it has become possible to keep careful watch over the use of specific antimicrobial agents and the detection of drug-resistant microorganism simulataneously. By sharing the information obtained by us with all the rest on the hospital staff, we will continue to make efforts along this line and contribute toward the prevention of the outbreak of nosocomial infections as well as community-acquired ones.
Microorganism
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Pharmaceutical Preparations
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Medical Surveillance
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microbial
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Bacterial
2.The clinical experience of medical students compared with that of residents
Ryoko OGAWA ; Tetsuhiro MAENO ; Ayumi TAKAYASHIKI ; Emiko SEO ; Akira MATSUMURA
Medical Education 2010;41(4):295-301
1) We evaluated the clinical experiences of 102 medical students who completed clinical clerkships at the University of Tsukuba, by analyzing their self-assessments on the clinical evaluation form normally used for the postgraduate residency program.
2) The medical students participated in the management of a broad range of diseases. However, in most cases, their participation was only partial.
3) To improve the continuity between the undergraduate and postgraduate medical education systems, it is important to expand the amount of hands-on participation of medical students in medical practice.
3.Need for pharmaceutical care during chemotherapy for prevention of side effects: examples of blood sugar monitoring in dexamethasone treatment
Chikako Matsumura ; Nobuhiko Nakamura ; Yukio Aomatsu ; Hirofumi Kuwata ; Akira Takayama ; Yoshitaka Yano
Palliative Care Research 2012;7(1):101-111
Purpose: Patients who receive chemotherapy for colorectal cancer with the prophylactic dexamethasone (DEX) for antiemesis may experience an abnormal elevation in their casual blood glucose levels. The purpose of this study was to determine the frequency of such a DEX-induced elevation in patients with metastatic colorectal cancer, and to emphasize the importance of pharmaceutical care in improving the quality of life of patients. Methods: We retrospectively analyzed data from 50 patients who had received chemotherapy with or without DEX. Results: Of the 30 patients who received DEX, 8 exhibited abnormally high blood glucose levels (>200 mg/dl on more than 2 occasions); 3 of these patients also had diabetes mellitus. None of the 20 patients who did not receive DEX exhibited a remarkable elevation in the blood glucose levels. Conclusions: We confirm that patients receiving concomitant administration of DEX with chemotherapy may exhibit elevated blood glucose levels. Because an increase in the blood glucose levels may produce symptoms indicative of diabetes such as fatigue, appropriate pharmaceutical care for early detection of the abnormal elevation in the blood glucose levels may be important in preventing complications in such patients.
4.Clinical and Radiological Outcomes after Microscopic Bilateral Decompression via a Unilateral Approach for Degenerative Lumbar Disease: Minimum 5-Year Follow-Up.
Sho DOHZONO ; Hiromitsu TOYODA ; Akira MATSUMURA ; Hidetomi TERAI ; Akinobu SUZUKI ; Hiroaki NAKAMURA
Asian Spine Journal 2017;11(2):285-293
STUDY DESIGN: A retrospective study. PURPOSE: To assess postoperative bone regrowth at surgical sites after lumbar decompression with >5 years of follow-up. Postoperative preservation of facet joints and segmental spinal instability following surgery were also evaluated. OVERVIEW OF LITERATURE: Previous reports have documented bone regrowth after conventional laminectomy or laminotomy and several factors associated with new bone formation. METHODS: Forty-nine patients who underwent microscopic bilateral decompression via a unilateral approach at L4–5 were reviewed. Primary outcomes included correlations among postoperative bone regrowth, preservation of facet joints, radiographic parameters, and clinical outcomes. Secondary outcomes included comparative analyses of radiographic parameters and clinical outcomes among preoperative diagnoses (lumbar spinal stenosis, degenerative spondylolisthesis, and degenerative lumbar scoliosis). RESULTS: The average value of bone regrowth at the latest follow-up was significantly higher on the dorsal side of the facet joint (3.4 mm) than on the ventral side (1.3 mm). Percent facet joint preservation was significantly smaller on the approach side (79.2%) than on the contralateral side (95.2%). Bone regrowth showed a significant inverse correlation with age, but no significant correlation was observed with facet joint preservation, gender, postoperative segmental spinal motion, or clinical outcomes. Subanalysis of these data revealed that bone regrowth at the latest follow-up was significantly greater in patients with degenerative lumbar scoliosis than in those with lumbar spinal stenosis. Postoperative segmental spinal motion at L4–L5 did not progress significantly in patients with degenerative spondylolisthesis or degenerative lumbar scoliosis compared with those with lumbar spinal stenosis. CONCLUSIONS: Microscopic bilateral decompression via a unilateral approach prevents postoperative spinal instability because of satisfactory preservation of facet joints, which may be the primary reason for inadequate bone regrowth. Postoperative bone regrowth was not related to clinical outcomes and postoperative segmental spinal instability.
Bone Development
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Decompression*
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Diagnosis
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Follow-Up Studies*
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Humans
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Laminectomy
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Minimally Invasive Surgical Procedures
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Osteoarthritis, Spine
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Osteogenesis
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Retrospective Studies
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Scoliosis
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Spinal Stenosis
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Spondylolisthesis
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Treatment Outcome
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Zygapophyseal Joint
5.Usefulness of quantitative proton MR spectroscopy in the differentiation of benign and malignant meningioma.
Qiang YUE ; Tomonori ISOBE ; Yasushi SHIBATA ; Hiraku KAWAMURA ; Izumi ANNO ; Akira MATSUMURA
Journal of Biomedical Engineering 2011;28(6):1103-1109
This study was aimed to explore the value of quantitative proton MR spectroscopy (1H-MRS) in the differentiation of benign and malignant meningioma. 23 cases, including 19 benign (grade I) and 4 malignant (grade II-III) meningiomas, underwent single voxel 1H-MRS (TR/TE = 2000 ms/68, 136, 272 ms). T2 relaxation time of tissue water and choline were estimated by an exponential decay model. Choline concentration was calculated using tissue water as the internal reference, and corrected according to intra-voxel cystic/necrotic parts. Tissue water T2 of benign and malignant meningiomas were (105 +/- 41) ms and (151 +/- 42) ms, respectively. The difference was statistically significant (P = 0.033). While Choline T2 of benign and malignant meningiomas were (242 +/- 73) ms and (316 +/- 102) ms respectively, the difference was not significant (P = 0.105). Choline concentration was (2.86 +/- 0.86) mmol/ kg wet weight in benign meningiomas and (3.53 +/- 0.60) mmol/kg wet weight in malignant ones; after correction they increased to (2.98 +/- 0.93)mmol/kg wet weight and (4.58 +/- 1.22) mmol/kg wet weight, respectively, and the difference was significant (P = 0.019). In conclusion, quantitative 1H-MRS is useful for the differentiation of benign and malignant meningioma by T2 relaxation time and absolute choline concentration.
Adult
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Aged
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Choline
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metabolism
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Diagnosis, Differential
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Female
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Humans
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Magnetic Resonance Spectroscopy
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methods
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Male
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Meningeal Neoplasms
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diagnosis
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metabolism
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pathology
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Meningioma
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diagnosis
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metabolism
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pathology
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Middle Aged
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Protons
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Young Adult
6.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.
7.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
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.Surgical Outcomes of Multilevel Posterior Lumbar Interbody Fusion versus Lateral Lumbar Interbody Fusion for the Correction of Adult Spinal Deformity: A Comparative Clinical Study
Masayoshi IWAMAE ; Akira MATSUMURA ; Takashi NAMIKAWA ; Minori KATO ; Yusuke HORI ; Akito YABU ; Yuta SAWADA ; Noriaki HIDAKA ; Hiroaki NAKAMURA
Asian Spine Journal 2020;14(4):421-429
Methods:
We retrospectively reviewed 31 ASD patients who underwent multilevel LIF combined with PCO (LIF group, n=14) or multilevel PLIF (PLIF group, n=17) and with a minimum 2-year follow-up. In the comparison between LIF and PLIF groups, their mean age at surgery was 69.4 vs. 61.8 years while the mean follow-up period was 29.2 vs. 59.3 months. We evaluated the transition of pelvic incidence–lumbar lordosis (PI–LL) and disc angle (DA) in the LIF group, in fulcrum backward bending (FBB), after LIF and after posterior spinal fusion (PSF) with PCO. The spinopelvic radiographic parameters were compared between LIF and PLIF groups.
Results:
Compared with the PLIF group, the LIF group had less blood loss and comparable surgical outcomes with respect to radiographic data, health-related quality of life scores and surgical time. In the LIF group, the mean DA and PI–LL were unchanged after LIF (DA, 5.8°; PI–LL, 15°) compared with the values using FBB (DA, 4.3°; PI–LL, 15°) and improved significantly after PSF with PCO (DA, 8.1°; PI–LL, 0°).
Conclusions
In the surgical treatment of ASD, multilevel LIF is less invasive than multilevel PLIF and combination of LIF and PCO would be necessary for optimal sagittal correction in patients with rigid deformity.
10.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