result 1284 件
| FullText URL | Heliyon_5_6_01936.pdf |
|---|---|
| Author | Matsuo, Toshihiko| Uchida, Tetsuya| Yamashita, Koichiro| Takei, Shigiko| Ido, Daisuke| Fujiwara, Atsushi| Iino, Masahiko| Oguchi, Masao| |
| Keywords | Bioengineering Neuroscience Physiology Zoology |
| Published Date | 2019-06-30 |
| Publication Title | Heliyon |
| Volume | volume5 |
| Issue | issue6 |
| Publisher | Elsevier Science |
| Start Page | e01936 |
| ISSN | 24058440 |
| Content Type | Journal Article |
| language | English |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © 2019 The Authors. |
| File Version | publisher |
| PubMed ID | 31294104 |
| DOI | 10.1016/j.heliyon.2019.e01936 |
| Web of Science KeyUT | 000473818300195 |
| Related Url | isVersionOf https://doi.org/10.1016/j.heliyon.2019.e01936 |
| FullText URL | fulltext.pdf |
|---|---|
| Author | Koyama, Takahisa| Kariya, Shin| Sato, Yasuharu| Gion, Yuka| Higaki, Takaya| Haruna, Takenori| Fujiwara, Tazuko| Minoura, Akira| Takao, Soshi| Orita, Yorihisa| Kanai, Kengo| Taniguchi, Masami| Nishizaki, Kazunori| Okano, Mitsuhiro| |
| Keywords | Chronic rhinosinusitis Eosinophils IgG4 Nasal polyps Severity |
| Published Date | 2019-04-30 |
| Publication Title | Allergology International |
| Volume | volume68 |
| Issue | issue2 |
| Publisher | Elsevier |
| Start Page | 216 |
| End Page | 224 |
| ISSN | 13238930 |
| NCID | AA11091750 |
| Content Type | Journal Article |
| language | English |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © 2019 Japanese Society of Allergology. Production and hosting by Elsevier B.V. |
| File Version | publisher |
| PubMed ID | 30316748 |
| DOI | 10.1016/j.alit.2018.09.002 |
| Web of Science KeyUT | 000462852200012 |
| Related Url | isVersionOf https://doi.org/10.1016/j.alit.2018.09.002 |
| FullText URL | JOS_24_2_337.pdf |
|---|---|
| Author | Fujiwara, Tomohiro| Kunisada, Toshiyuki| Takeda, Ken| Hasei, Joe| Nakata, Eiji| Mochizuki, Yusuke| Kiyono, Masahiro| Yoshida, Aki| Ozaki, Toshifumi| |
| Published Date | 2019-03 |
| Publication Title | Journal of Orthopaedic Science |
| Volume | volume24 |
| Issue | issue2 |
| Publisher | Elsevier |
| Start Page | 337 |
| End Page | 341 |
| ISSN | 0949-2658 |
| NCID | AA11627828 |
| Content Type | Journal Article |
| language | English |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © 2018 The Japanese Orthopaedic Association. |
| File Version | author |
| PubMed ID | 30857616 |
| DOI | 10.1016/j.jos.2018.09.017 |
| Web of Science KeyUT | 000460662100026 |
| Related Url | isVersionOf https://doi.org/10.1016/j.jos.2018.09.017 |
| JaLCDOI | 10.18926/AMO/56939 |
|---|---|
| FullText URL | 73_4_361.pdf |
| Author | Watanabe, Ayako| Kadowaki, Yoshihiko| Hattori, Kenji| Ohmori, Mika| Tsukayama, Hiroyuki| Kubota, Nobuhito| Okumoto, Tatsuo| Ishido, Nobuhiro| Okino, Takeshi| |
| Abstract | A 35-year-old man was referred to our hospital for chronic abdominal pain and diarrhea. Computed tomography showed wall thickening, poor contrast enhancement and calcification of the ascending colon, which were consistent with phlebosclerotic colitis. Malignant character was not detected from a biopsy specimen. Operatively, we observed a scirrhous mass of the ascending colon invading surrounding tissue, which was diagnosed as signet ring cell carcinoma based on analysis of an intraoperative frozen section. Right hemicolectomy with regional lymph node dissection was performed. This case was extremely similar to phlebosclerotic colitis in clinical findings; surgical resection was required for correct diagnosis. |
| Keywords | phlebosclerotic colitis colorectal cancer signet ring cell carcinoma young colorectal cancer |
| Amo Type | Case Report |
| Publication Title | Acta Medica Okayama |
| Published Date | 2019-08 |
| Volume | volume73 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 361 |
| End Page | 365 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2019 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 31439960 |
| JaLCDOI | 10.18926/AMO/56937 |
|---|---|
| FullText URL | 73_4_349.pdf |
| Author | Isozaki, Hiroshi| Yamamoto, Yasuhisa| Murakami, Shigeki| Matsumoto, Sasau| Takama, Takehiro| |
| Abstract | To clarify the surgical outcomes of breast cancer patients with a preoperative diagnosis of ductal carcinoma in situ (DCIS) by core needle biopsy (CNB) (abbreviated as CNBDCIS), we retrospectively analyzed the cases of 131 patients with CNBDCIS who underwent surgery at Oomoto Hospital (32 total mastectomies, 99 conservative mastectomies). Our analysis of underestimation and predictors of invasive breast cancer of CNBDCIS revealed that the underestimation rate of CNBDCIS was 40.5% (53/131). A logistic regression analysis revealed that palpable tumors (yes to no, odds ratio [OR] 3.25), mammography (MMG) category group (category 4 or 5 to categories 1 , 2, or 3, OR 4.69) and MMG microcalcifications (no to yes, OR 0.24) were significant predictive factors for CNBDCIS invasion. In our analysis of the predictors of positive margins during CNBDCIS surgery, 36 (27.5%) of the 131 patients had positive margins after postoperative pathological examination. A logistic regression analysis revealed that the operative procedure (conservative surgery to total mastectomy, OR 21.4) and MMG microcalcifications (yes to no, OR 3.35) were significant factors related to positive margins during CNBDCIS surgery. Thus, MMG microcalcifications are a negative predictor of upgrading of CNBDCIS and a positive predictor of positive surgical margins for CNBDCIS. |
| Keywords | ductal carcinoma in situ core needle biopsy underestimation positive margins microcalcifications on mammography |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2019-08 |
| Volume | volume73 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 349 |
| End Page | 356 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2019 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 31439958 |
| JaLCDOI | 10.18926/AMO/56934 |
|---|---|
| FullText URL | 73_4_325.pdf |
| Author | Ueno, Tsuyoshi| Maki, Yuho| Sugimoto, Ryujiro| Suehisa, Hiroshi| Yamashita, Motohiro| Harada, Daijiro| Kozuki, Toshiyuki| Nogami, Naoyuki| |
| Abstract | Therapeutic approaches to bronchopleural fistula (BPF) closure after lung resection are surgical or endoscopic interventions. We evaluated therapeutic outcomes to determine the optimal approach. We reviewed 15 patients who had developed BPF after lung resection for thoracic malignant diseases at our institution in the 10 years since 2008. The patients were 11 men and 4 women (mean age 68 years). We performed one pneumonectomy, 6 lobectomies, 7 segmentectomies, and one partial resection for malignant diseases. The median interval from lung resection to the BPF diagnosis was 46 days. The BPF-associated mortality rate was 26.7% (4/15). The rate of successful BPF closure was 66.6% (10/15). The endoscopic and surgical intervention success rates were 14.2% (1/7) and 69.2% (9/13), respectively (p<0.01). Of 5 patients who had failed BPF treatments, 4 died, and one transferred out without BPF closure. The therapeutic outcomes were related to preoperative comorbidities, performance status at the BPF diagnosis, time intervals from lung resection to BPF diagnosis, and presence of active pneumonia. The difference between endoscopic and surgical outcomes was nonsignificant, although the surgical intervention success rate was somewhat higher. The selection of endoscopic or surgical intervention for BPF does not significantly affect therapeutic outcomes. |
| Keywords | bronchopleural fistula endoscopic intervention surgical intervention |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2019-08 |
| Volume | volume73 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 325 |
| End Page | 331 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2019 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 31439955 |
| JaLCDOI | 10.18926/AMO/56931 |
|---|---|
| FullText URL | 73_4_299.pdf |
| Author | Hiranaka, Takaaki| Nishida, Keiichiro| Konishiike, Taizo| Ozaki, Toshifumi| Mikasa, Motohiko| |
| Abstract | The fixation technique of bony fragments is crucial for the bone union of the tuberosities after humeral head replacement (HHR) for a comminuted fracture of the proximal humerus. To increase the bone union rate, we reduce tuberosities to overlap on the humeral shaft by approx. 1 cm and fix them with cable wire. Herein, we retrospectively investigated the clinical and radiographic outcomes of our procedure. Twenty-six patients who underwent cementless HHR for the treatment of comminuted fractures of the proximal humerus were investigated. The Constant-Murley score, active shoulder mobility, and bone union rate were evaluated. The mean duration of follow-up was 56.3 months (range 24-197). At the final follow-up, the average Constant-Murley score was 58 (range 40-76). Forward elevation was 126° on average (range 35°-180°). Twenty-three cases (88%) showed bone union between the tuberosities and the shaft at an average follow-up of 4.1 months (range 4-5 months) after surgery. Non-union was noted in 1 case, and bone resorption was noted in 2 cases. The bone union rate and the clinical outcome of our procedure were relatively favorable |
| Keywords | humeral head replacement tuberosity-overlapping technique bone union of tuberosities cable wire cementless stem |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2019-08 |
| Volume | volume73 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 299 |
| End Page | 305 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2019 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 31439952 |
| JaLCDOI | 10.18926/AMO/56930 |
|---|---|
| FullText URL | 73_4_285.pdf |
| Author | Otani, Yoshihiro| Ichikawa, Tomotsugu| Kurozumi, Kazuhiko| Date, Isao| |
| Abstract | Gliomas are characterized as highly diffuse infiltrating tumors, and currently available treatments such as surgery, radiation and chemotherapy are unfeasible or show limited efficacy against these tumors. Recent genetic and epigenetic analyses of glioma have revealed increasing evidence of the role of driver genetic alterations in glioma development and led to the identification of prognostic factors. Despite these findings, the survival rates of glioma patients remain low, and alternative treatments and novel targets are needed. Recent studies identified neural stem cells as the possible origin of gliomas, and some evidence has revealed shared functions and mechanisms between glioma cells and neurons, also supporting their similarity. The cytoskeleton plays important roles in the migration of normal cells as well as cancer cells. Recent reports have described a role for microtubules, a component of the cytoskeleton, in glioma invasion. Notably, several factors that regulate microtubule functions, such as microtubule-associated proteins, plus-end tracking proteins, or motor proteins, are upregulated in glioma tissues compared with normal tissue, and upregulation of these factors is associated with high invasiveness of glioma cells. In this review, we describe the mechanism of microtubules in glioma invasion and discuss the possibility of microtubule-targeted therapy to inhibit glioma invasion. |
| Keywords | glioma cytoskeletons invasion microtubules |
| Amo Type | Review |
| Publication Title | Acta Medica Okayama |
| Published Date | 2019-08 |
| Volume | volume73 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 285 |
| End Page | 297 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2019 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 31439951 |
| JaLCDOI | 10.18926/AMO/56867 |
|---|---|
| FullText URL | 73_3_241.pdf |
| Author | Utsumi, Masashi| Aoki, Hideki| Nishimura, Seitaro| Une, Yuta| Kashima, Hajime| Kimura, Yuji| Taniguchi, Fumitaka| Arata, Takashi| Katsuda, Koh| Tanakaya, Kohji| |
| Abstract | Gallbladder carcinoma (GBC) is a common malignancy with a poor prognosis. With the average life expectancy increasing globally, the incidence of GBC is predicted to increase as well. We investigated the safety and feasibility of surgical treatment for elderly patients with GBC. We retrospectively compared clinical pathological data and treatment outcomes in 45 consecutive GBC patients (23 patients ≥ 75 years [elderly group] and 22 patients < 75 years [younger group]) who underwent curative resection at the Iwakuni Center from January 2008 to December 2017. The proportion of preoperative comorbidities and anticoagulant use was significantly higher in the elderly group. The American Society of Anesthesiologists score was higher in the elderly versus the younger group, and the elderly group had significantly shorter operation times. Reduced activities of daily living was more common in the elderly versus younger group. The percentage of radical resection and overall 3-year survival (66.6% younger vs. 64.4% elderly) were similar between the groups. Controlling Nutritional Status (CONUT) score ≥ 3 and R0 resection were identified as prognostic factors for overall survival rate among all patients. After careful patient selection, |
| Keywords | elderly patient gallbladder carcinoma prognostic factor surgical treatment |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2019-06 |
| Volume | volume73 |
| Issue | issue3 |
| Publisher | Okayama University Medical School |
| Start Page | 241 |
| End Page | 246 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2019 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 31235972 |
| JaLCDOI | 10.18926/AMO/56866 |
|---|---|
| FullText URL | 73_3_235.pdf |
| Author | Horita, Masahiro| Nishida, Keiichiro| Hashizume, Kenzo| Sugimoto, Yoshihisa| Nasu, Yoshihisa| Nakahara, Ryuichi| Harada, Ryozo| Ozaki, Toshifumi| |
| Abstract | We investigated the prevalence of and risk factors for the progression of upper cervical lesions (UCLs) in patients with rheumatoid arthritis (RA). A retrospective analysis of 49 patients with RA (4 males, 45 females) was conducted. The UCLs included atlanto-axial subluxation and vertical subluxation. We investigated the clinical factors including the Disease Activity Score 28 based on C-reactive protein (DAS28-CRP) and the modified Health Assessment Questionnaire-Disability Index as well as radiographic changes between the baseline (at May 2010 to April 2013) and final follow-up. Forty patients (81.6%) were classified as the non-progressive group, and the other 9 patients (18.4%) comprised the progressive group. The progressive group’s final CRP values, baseline or final MMP-3 levels, DAS28-CRP, and rate of pre-existing lesions at baseline were all significantly higher than those of the non-progressive group (p=0.017, p=0.043, p=0.002, p=0.008, p<0.001, and p=0.008 respectively). A multivariate logistic regression analysis demonstrated that DAS28-CRP at baseline was a risk factor for radiographic progression (p=0.018, odds ratio: 2.54, 95% confidence interval: 1.17-5.51). Our findings indicate that higher disease activity might influence the progression of UCLs in patients with RA. |
| Keywords | rheumatoid arthritis upper cervical spine lesion risk factor radiological progression |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2019-06 |
| Volume | volume73 |
| Issue | issue3 |
| Publisher | Okayama University Medical School |
| Start Page | 235 |
| End Page | 240 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2019 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 31235971 |
| JaLCDOI | 10.18926/AMO/56865 |
|---|---|
| FullText URL | 73_3_229.pdf |
| Author | Hamasaki, Ichiro| Shibata, Kiyo| Shimizu, Takehiro| Kono, Reika| Morizane, Yuki| Shiraga, Fumio| |
| Abstract | During strabismus surgery using illumination from a light source, patients complain of photophobia. The NGENUITYⓇ (Alcon) system is equipped with a high-dynamic-range (HDR) camera. A 4K display viewed by wearing circularly polarized glasses provides clear three-dimensional images of the operative field. A light source is usually required for surgeries of the anterior segment (including strabismic surgery), but the digital processing function of the NGENUITYⓇ system allows image display in relatively dark regions even without a light source. We devised a novel ‘lights-out’ surgery that does not use a microscope’s light source, and we examined the usefulness of this technique in 2 cases of strabismic surgery. We performed strabismus surgery using the NGENUITYⓇ system in two patients between January and June 2018. The HDR function was used, and the aperture was opened to the maximum while the gain was adjusted. Surgery was conducted without using the microscope’s light source. We report the 2 cases’ results and evaluate the novel method. The surgeries were performed without problem even though the microscope’s light source was not used. The patients’ photophobia was alleviated. Lights-out surgery is a potentially useful modality for strabismus surgery. |
| Keywords | head-up surgery 3D vision system high dynamic range video enhancement strabismus surgery |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2019-06 |
| Volume | volume73 |
| Issue | issue3 |
| Publisher | Okayama University Medical School |
| Start Page | 229 |
| End Page | 233 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2019 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 31235970 |
| JaLCDOI | 10.18926/AMO/56864 |
|---|---|
| FullText URL | 73_3_223.pdf |
| Author | Sugiu, Kazuhisa| Furumatsu, Takayuki| Kodama, Yuya| Kamatsuki, Yusuke| Okazaki, Yoshiki| Okazaki, Yuki| Hiranaka, Takaaki| Ozaki, Toshifumi| |
| Abstract | Anterior cruciate ligament (ACL) reconstruction (ACLR) after ACL rupture improves the instability of the knee joint and decreases mechanical stress to the meniscus and articular cartilage. However, there are reports that post-traumatic osteoarthritis (PTOA) is observed over time following ACLR. In this study, we assessed changes in cartilage lesions by arthroscopic findings following anatomical double-bundle ACLR and at post-operative second-look arthroscopy about 14 months later. We retrospectively evaluated 37 knees in cases with patients <40 years of age who had undergone an anatomical double-bundle ACL reconstruction <1 year after ACL rupture injury from March 2012 to December 2016. Clinical results and arthroscopic cartilage/meniscal lesion were evaluated and compared between a cartilage lesion-detected group and intact-cartilage group. Surgery improved anteroposterior laxity and other clinical measures; however, cartilage lesions were detected at 11 sites during ACLR and at 54 sites at second-look arthroscopy. The periods from injury to second-look arthroscopy and from ACLR to second-look arthroscopy were significantly longer in the cartilage-lesion group (n=23) than in the intact-cartilage group (n=14). Conversely, 96% of meniscal damage observed during ACLR was cured at the time of second-look arthroscopy. Knee articular cartilage lesions after ACL rupture cannot be completely suppressed, even using the anatomical ACL reconstruction technique. This study suggested that articular cartilage lesions can progress to a level that can be confirmed arthroscopically at approximately 17 months after ACL injury. Therefore, in ACLR patients, the possibility of developing knee articular cartilage lesions and PTOA should be considered. |
| Keywords | anterior cruciate ligament reconstruction post-traumatic osteoarthritis meniscal lesion cartilage lesions second-look arthroscopy |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2019-06 |
| Volume | volume73 |
| Issue | issue3 |
| Publisher | Okayama University Medical School |
| Start Page | 223 |
| End Page | 228 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2019 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 31235969 |
| FullText URL | World_J_Microbiol_Biotechnol_30_2_681.pdf |
|---|---|
| Author | Elgaml, Abdelaziz| Higaki, Kazutaka| Miyoshi, Shin-ichi| |
| Keywords | Vibrio vulnificus Metalloprotease Hemolysin Quorum sensing Autoinducer |
| Note | This is an Accepted Manuscript of an article published by Springer| |
| Published Date | 2014-02 |
| Publication Title | World Journal of Microbiology and Biotechnology |
| Volume | volume30 |
| Issue | issue2 |
| Publisher | Springer |
| Start Page | 681 |
| End Page | 691 |
| ISSN | 09593993 |
| NCID | AA10811107 |
| Content Type | Journal Article |
| language | English |
| OAI-PMH Set | 岡山大学 |
| File Version | author |
| PubMed ID | 24068537 |
| DOI | 10.1007/s11274-013-1501-3 |
| Web of Science KeyUT | 000330829900035 |
| Related Url | isVersionOf https://doi.org/10.1007/s11274-013-1501-3 |
| JaLCDOI | 10.18926/AMO/56461 |
|---|---|
| FullText URL | 73_1_71.pdf |
| Author | Takahashi-Arimasa, Keiko| Kohno-Yamanaka, Reiko| Soga, Yoshihiko| Miura, Rumi| Morita, Manabu| |
| Abstract | Preoperative oral care is helpful to prevent postoperative complications in patients who are undergoing esophagectomy. Here, we report the case of an 81-year-old Japanese man with an upper limb disability caused by post-polio syndrome who was receiving neoadjuvant chemotherapy for esophageal cancer. He had poor oral health status and developed oral complications as a side effect of chemotherapy. He could not brush his teeth by himself. However, infection control by oral care provided by an interprofessional collaboration successfully improved his oral hygiene, and his follow-up involved no severe complications. Interprofessional collaboration is useful especially for patients with upper limb disability. |
| Keywords | esophageal cancer preoperative oral care post-polio syndrome neoadjuvant chemotherapy oral mucositis |
| Amo Type | Case Report |
| Publication Title | Acta Medica Okayama |
| Published Date | 2019-02 |
| Volume | volume73 |
| Issue | issue1 |
| Publisher | Okayama University Medical School |
| Start Page | 71 |
| End Page | 76 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2019 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30820057 |
| JaLCDOI | 10.18926/AMO/56453 |
|---|---|
| FullText URL | 73_1_7.pdf |
| Author | Fukumori, Norio| Sonohata, Motoki| Kitajima, Masaru| Kawano, Shunsuke| Kurata, Tsuyoshi| Sakanishi, Yuta| Sugioka, Takashi| Mawatari, Masaaki| |
| Abstract | We evaluated the analgesic effects of multimodal pain control in which intravenous acetaminophen (IV APAP) was added to the standard protocol for Japanese patients who had undergone a total hip arthroplasty (THA). We performed a retrospective cohort study of 180 patients aged 66.4±10.5 years (30% male) who had undergone a THA (Oct. 2014 to Feb. 2015) at our hospital. The control patients were administered the standard analgesic protocol: flurbiprofen axetil as a continuous intravenous infusion and oral celecoxib (NAPAP; n=109). The patients in the new analgesic protocol group received IV APAP in addition to the standard analgesic protocol (APAP; n=71). The primary outcome was the maximum value of postoperative pain the patients reported on a numerical rating scale (NRS) during the first 24 h post-surgery. A univariate analysis and multivariate analyses adjusted for age, sex, the stage of hip osteoarthritis, preoperative pain, and surgical time showed that the maximum postoperative pain NRS scores during the first 24 h after surgery was significantly lower when the APAP protocol was used. The addition of IV APAP to the current standard multimodal analgesia protocol for Japanese patients who have undergone a THA may decrease the patients’ postoperative pain. |
| Keywords | intravenous acetaminophen postoperative pain total hip arthroplasty osteoarthritis |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2019-02 |
| Volume | volume73 |
| Issue | issue1 |
| Publisher | Okayama University Medical School |
| Start Page | 7 |
| End Page | 14 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2019 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30820049 |
| JaLCDOI | 10.18926/AMO/56374 |
|---|---|
| FullText URL | 72_6_567.pdf |
| Author | Yagi, Takahito| Takagi, Kosei| Umeda, Yuzo| Yoshida, Ryuichi| Nobuoka, Daisuke| Kuise, Takashi| Fujiwara, Toshiyoshi| |
| Abstract | Living donor liver transplantation (LDLT) is the final therapeutic arm for pediatric end-stage liver diseases. Toward the goal of achieving further improvement in LDLT survival, we investigated factors affecting recipient survival. We evaluated the prognostic factors of 60 pediatric recipients (< 16 years old) who underwent LDLT between 1997 and 2015. In a univariate analysis, non-cholestatic (NCS) disease, graft/recipient body weight ratio, cold and warm ischemic times, and intraoperative blood loss were significant factors impacting survival. In a multivariate analysis, NCS disease was the only significant factor worsening survival (p=0.0021). One-and 5-year survival rates for the cholestatic disease (CS, n=43) and NCS (n=17) groups were 100% vs. 70.6% and 97.4% vs. 58.8% (p=0.004, log-rank). Intergroup comparisons revealed that CS was significantly associated with operation time, cold ischemia, hepatomegaly of the native liver, and portal plasty. These data suggest that a cirrhotic, swollen, artery-dominant liver did not increase graft size-related risks despite the surgical complexity of preceding operations. The NCS group’s poorer survival originated from recurrence of the primary disease and liver manifestation of systemic disease untreatable by transplantation. Improving the survival of pediatric recipients requires intensive efforts to prevent primary disease relapse and more rapid diagnoses to exclude contraindications from NCS disease. |
| Keywords | liver transplantation living donor pediatrics prognostic factor cholestatic disease |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2018-12 |
| Volume | volume72 |
| Issue | issue6 |
| Publisher | Okayama University Medical School |
| Start Page | 567 |
| End Page | 576 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2018 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30573911 |
| NAID | 120006545159 |
| JaLCDOI | 10.18926/AMO/56370 |
|---|---|
| FullText URL | 72_6_539.pdf |
| Author | Hiraki, Takao| Kamegawa, Tetsushi| Matsuno, Takayuki| Komaki, Toshiyuki| Sakurai, Jun| Kanazawa, Susumu| |
| Abstract | Since 2012, we have been developing a remote-controlled robotic system (Zerobot®) for needle insertion during computed tomography (CT)-guided interventional procedures, such as ablation, biopsy, and drainage. The system was designed via a collaboration between the medical and engineering departments at Okayama University, including various risk control features. It consists of a robot with 6 degrees of freedom that is manipulated using an operation interface to perform needle insertions under CT-guidance. The procedure includes robot positioning, needle targeting, and needle insertion. Phantom experiments have indicated that robotic insertion is equivalent in accuracy to manual insertion, without physician radiation exposure. Animal experiments have revealed that robotic insertion of biopsy introducer needles and various ablation needles is safe and accurate in vivo. The first in vivo human trial, therefore, began in April 2018. After its completion, a larger clinical study will be conducted for commercialization of the robot. This robotic procedure has many potential advantages over a manual procedure: 1) decreased physician fatigue; 2) stable and accurate needle posture without tremor; 3) procedure automation; 4) less experience required for proficiency in needle insertion skills; 5) decreased variance in technical skills among physicians; and 6) increased likelihood of performing the procedure at remote hospitals (i.e., telemedicine). |
| Keywords | robot needle insertion CT-guided interventional radiology |
| Amo Type | Review |
| Publication Title | Acta Medica Okayama |
| Published Date | 2018-12 |
| Volume | volume72 |
| Issue | issue6 |
| Publisher | Okayama University Medical School |
| Start Page | 539 |
| End Page | 546 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2018 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30573907 |
| NAID | 120006545155 |
| FullText URL | mjou_061_187_198.pdf |
|---|---|
| Author | Rashid, M.H.M.| |
| Abstract | A Banach space operator satisfies property (Bw) if the complement of its B-Weyl spectrum in its the spectrum is the set of finite multiplicity isolated eigenvalues of the operator. Property (Bw) does not transfer from operators T and S to their tensor product T ⊗ S. We give necessary and /or sufficient conditions ensuring the passage of property (Bw) from T and S to T ⊗ S. Perturbations by Riesz operators are considered. |
| Keywords | property (Bw) SVEP tensor product |
| Published Date | 2019-01 |
| Publication Title | Mathematical Journal of Okayama University |
| Volume | volume61 |
| Issue | issue1 |
| Publisher | Department of Mathematics, Faculty of Science, Okayama University |
| Start Page | 187 |
| End Page | 198 |
| ISSN | 0030-1566 |
| NCID | AA00723502 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | Copyright©2019 by the Editorial Board of Mathematical Journal of Okayama University |
| JaLCDOI | 10.18926/AMO/56167 |
|---|---|
| FullText URL | 72_4_331.pdf |
| Author | Miyahara, Kanae| Kuroda, Masahiro| Yoshimura, Yuuki| Aoyama, Hideki| Oita, Masataka| Sugianto, Irfan| Matsuzaki, Hidenobu| Ihara, Hiroki| Katayama, Norihisa| Katsui, Kuniaki| Kanazawa, Susumu| Asaumi, Junichi| |
| Abstract | We used image-processing software to analyze the setup errors at the skin surface position of breast cancer patients (n=66) who underwent post-operative whole breast irradiation at our hospital in 2014-2015. The sixty-six digital reconstructed radiographs (DRR) were created at the treatment planning for each patient. The lineacgraphies (n=377) were taken after the patients’ setup during radiotherapy. The lineacgraphies and DRR were superimposed at the skin surface position for each patient with the image-processing software. We measured the deviations of the isocenters for the nipple-lung (X) direction and craniocaudal (Y) direction and the deviation of the rotation angle of the XY axes between the lineacgraphy and DRR on the superimposed images. The systematic error (μ, Σ) and random error (σ) were calculated from the X and Y deviations and rotation angle deviation. The μ of X, Y, and rotation angle were 0.01 mm, −1.2 mm, and 0.05°, respectively. The Σ of X, Y, and rotation angle were 1.8 mm, 1.5 mm, and 0.9°, respectively. The σ of X, Y, and rotation angle were 2.0 mm, 1.5 mm, and 1.0°, respectively. Our analyses thus revealed that evaluations using image-processing software at the skin surface position in routine breast radiotherapy result in sufficiently small setup errors. |
| Keywords | breast cancer radiotherapy position verification skin surface image processing software |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2018-08 |
| Volume | volume72 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 331 |
| End Page | 336 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2018 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30140079 |
| JaLCDOI | 10.18926/AMO/56166 |
|---|---|
| FullText URL | 72_4_325.pdf |
| Author | Shibata, Takashi| Kobayashi, Katsuhiro| |
| Abstract | Electroencephalography (EEG) examines the functional state of the brain. High-frequency oscillations (HFOs) in the ripple (80-200/250 Hz) and fast ripple (200/250-500/600 Hz) bands have recently been attracting attention, and their recording has been enabled by advancements in digital EEG techniques. The detection of HFOs was previously limited to intracranial EEG, but fast oscillations (FOs) in the gamma (40-80 Hz) and ripple bands can now be detected over the scalp. HFOs and FOs have been shown to be related to epileptogenicity in intracranial EEG and scalp EEG, respectively. A large number of FOs are found in the scalp EEGs of pediatric patients with various epileptic encephalopathies, particularly West syndrome. FOs are suggested to be a biomarker of the epileptogenic cortical region in epilepsy surgery. FOs are detectable even in patients with idiopathic focal epilepsies, including benign epilepsy with centrotemporal spikes and Panayiotopoulos syndrome, who are not generally candidates for operation. The detection of HFOs and FOs may provide clues to the pathophysiology of epilepsy and the relationship between HFOs and cognitive dysfunction. |
| Keywords | electroencephalogram high-frequency oscillations fast oscillations time-frequency analysis epilepsy |
| Amo Type | Review |
| Publication Title | Acta Medica Okayama |
| Published Date | 2018-08 |
| Volume | volume72 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 325 |
| End Page | 329 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2018 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 30140078 |
