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JaLCDOI 10.18926/AMO/55667
FullText URL 72_1_77.pdf
Author Watanabe, Kenya| Fukuzawa, Takuma| Mitsui, Katsuhiro|
Abstract Schwannoma is the most common tumor of the peripheral nerve sheath. However, there have been few reports on schwannoma of the posterior tibial nerve causing tarsal tunnel syndrome. We report on a 60-year-old man with tarsal tunnel syndrome caused by a schwannoma of the posterior tibial nerve, which was first diagnosed as a ganglion cyst. After enucleation of this tumor, the patient was asymptomatic and had no related sequelae except for minor numbness in the plantar aspects of his digits. Although schwannoma of the posterior tibial nerve is rare, it should be considered even if a ganglion is clinically suspected.
Keywords tarsal tunnel syndrome schwannoma posterior tibial nerve
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 77
End Page 80
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 29463943
JaLCDOI 10.18926/AMO/55666
FullText URL 72_1_73.pdf
Author Umakoshi, Michiari| Yasuhara, Takao| Toyoshima, Atsuhiko| Sasada, Susumu| Kusumegi, Akira| Morimoto, Jun| Kin, Kyohei| Tomita, Yousuke| Date, Isao|
Abstract The spinal extradural arachnoid cyst is a rare entity. Obtaining the correct diagnosis and detecting the fistula location are critical for providing effective treatment. A 41-year-old man had numbness in the soles of his feet for 2 years with accompanying gait disturbance, and a defecation disorder. Computed tomography myelography performed at another hospital revealed an epidural arachnoid cyst from Th11 to L2. He received a subarachnoid-cyst shunt at the rostral part of the cyst. However, his symptoms worsened and he was admitted to our hospital. Neuroradiological investigations revealed the correct location of the fistula at the level of Th12. We performed partial removal of the cyst wall with fistula closure via right hemilaminectomy of Th11 and 12. The complete closure of the fistula was confirmed by intrathecal infusion of artificial cerebrospinal fluid through the shunt tube. The shunt tube was removed with the sutures. The patient’s symptoms improved, although numbness remained in his bilateral heels. There has been no recurrence in 15 months since the surgery. Fistula closure may work as a balanced therapeutic strategy for spinal extradural arachnoid cyst, and intrathecal cerebrospinal fluid infusion is useful for the confirmation of complete fistula closure.
Keywords fistula closure intrathecal infusion microscopic surgery preoperative evaluation recurrence
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 73
End Page 76
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 29463942
JaLCDOI 10.18926/AMO/55665
FullText URL 72_1_67.pdf
Author Watanabe, Akihisa| Ono, Qana| Nishigami, Tomohiko| Hirooka, Takahiko| Machida, Hirohisa|
Abstract It has been unclear whether the risk factors for rotator cuff tears are the same at all ages or differ between young and older populations. In this study, we examined the risk factors for rotator cuff tears using classification and regression tree analysis as methods of nonlinear regression analysis. There were 65 patients in the rotator cuff tears group and 45 patients in the intact rotator cuff group. Classification and regression tree analysis was performed to predict rotator cuff tears. The target factor was rotator cuff tears; explanatory variables were age, sex, trauma, and critical shoulder angle≥35°. In the results of classification and regression tree analysis, the tree was divided at age 64. For patients aged≥64, the tree was divided at trauma. For patients aged<64, the tree was divided at critical shoulder angle≥35°. The odds ratio for critical shoulder angle≥35° was significant for all ages (5.89), and for patients aged<64 (10.3) while trauma was only a significant factor for patients aged≥64 (5.13). Age, trauma, and critical shoulder angle≥35° were related to rotator cuff tears in this study. However, these risk factors showed different trends according to age group, not a linear relationship.
Keywords rotator cuff tears risk factor critical shoulder angle trauma classification and regression tree analysis
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 67
End Page 72
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 29463941
JaLCDOI 10.18926/AMO/55664
FullText URL 72_1_61.pdf
Author Sakamoto, Ai| Kamada, Yasuhiko| Kubo, Kotaro| Hasegawa, Toru| Kotani, Sayoko| Nakatsuka, Mikiya| Hiramatsu, Yuji|
Abstract Establishing whether miscarriages result from fetal aneuploidy or other factors is important for treating recurrent pregnancy loss. We examined the relationship between fetal heart rate (FHR) before miscarriage in the early first trimester and fetal karyotype, analyzing 223 pregnant women with recurrent pregnancy loss. Among the pregnancies, 110 resulted in live births regarded as normal karyotype (the Norm-group). The other 113 pregnancies ended in miscarriage, and we categorized them into groups based on fetal karyotype, determined by chorionic villus sampling: the Misc-NK (normal karyotype) group, n=35 euploid cases; the Misc-CA1 (chromosomal abnormality) group, n=18 cases of aneuploidy with trisomies 13/18/21, Turner’s syndrome, or Klinefelter’s syndrome; and the Misc-CA2 subgroup, n=60 cases of other aneuploidies excluding those in the Misc-CA1 group. We compared the groups’ regression line slopes and intercepts for FHR by an analysis of covariance. The FHRs of the Norm, Misc-NK and Misc-CA1 groups increased from 36 to 49 days after fertilization, but did not significantly differ across these groups. The Misc-CA2 group’s FHR did not increase and significantly differed from the other three groups (p<0.01). These results suggest that the absence of an increase in FHR in early pregnancy may indicate the presence of chromosomal abnormalities causing miscarriage.
Keywords aneuploidy chorionic villi fetal heart rate recurrent pregnancy loss
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 61
End Page 66
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 29463940
JaLCDOI 10.18926/AMO/55663
FullText URL 72_1_53.pdf
Author Yoshimura, Yuuki| Kuroda, Masahiro| Sugiantoc, Irfan| Bamgbosec, Babatunde O.| Miyahara, Kanae| Ohmura, Yuichi| Kurozumi, Akira| Matsushita, Toshi| Ohno, Seiichiro| Kanazawa, Susumu| Asaumi, Junichi|
Abstract Readout-segmented echo-planar imaging (RESOLVE) is a multi-shot echo-planar imaging (EPI) modality with k-space segmented in the readout direction. We investigated whether RESOLVE decreases the distortion and artifact in the phase direction and increases the signal-to-noise ratio (SNR) in phantoms image taken with 3-tesla (3T) MRI versus conventional EPI. We used a physiological saline phantom and subtraction mapping and observed that RESOLVE’s SNR was higher than EPI’s. Using RESOLVE, the combination of a special-purpose coil and a large-loop coil had a higher SNR compared to using only a head/neck coil. RESOLVE’s image distortioas less than EPI’s. We used a 120 mM polyethylene glycol phantom to examine the phase direction artifact.vThe range where the artifact appeared in the apparent diffusion coefficient (ADC) image was shorter with RESOLVE compared to EPI. We used RESOLVE to take images of a Jurkat cell bio-phantom: the cell-region ADC was 856×10−6mm2/sec and the surrounding physiological saline-region ADC was 2,951×10−6mm2/sec. The combination of RESOLVE and the 3T clinical MRI device reduced image distortion and improved SNR and the identification of accurate ADC values due to the phase direction artifact reduction. This combination is useful for obtaining accurate ADC values of bio-phantoms.
Keywords RESOLVE bio-phantom 3 tesla MRI apparent diffusion coefficient diffusion-weighted imaging
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 53
End Page 59
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 29463939
JaLCDOI 10.18926/AMO/55662
FullText URL 72_1_47.pdf
Author Ako, Soichiro| Nakamura, Shinichiro| Nouso, Kazuhiro| Dohi, Chihiro| Wada, Nozomu| Morimoto, Yuki| Takeuchi, Yasuto| Yasunaka, Tetsuya| Kuwaki, Kenji| Onishi, Hideki| Ikeda, Fusao| Shiraha, Hidenori| Takaki, Akinobu| Okada, Hiroyuki|
Abstract Transcatheter arterial chemoembolization (TACE) is often performed before radiofrequency ablation (RFA) for the treatment of early-stage hepatocellular carcinoma (HCC). TACE prior to RFA can expand the ablated area and reduce the tumor size, facilitating complete ablation. However, the factors correlated with size reduction remain uncertain. The aim of this study was to identify the factors associated with size reduction by TACE and develop a formula to predict the reduction rate. A total of 100 HCC patients treated with TACE followed by RFA at least 20 days later were enrolled. The tumor size was measured at the time of TACE and RFA, and correlations between the reduction rate and 13 clinical factors were examined. A formula to predict the reduction rate was built using the factors obtained by the analysis. Reduction in the tumor size was observed in 69 nodules, and the median reduction rate was 16.2%. A multivariate regression analysis revealed that a large tumor size (p< 0.01) and a long interval between the therapies (p= 0.01) were factors for a high tumor reduction rate, with tumor size more strongly related to the degree of reduction. A size reduction of more than 10% can be expected by waiting 20 days after TACE when the size of the tumor at TACE is over 25 mm in diameter. The tumor size
Keywords hepatocellular carcinoma transcatheter arterial chemoembolization radiofrequency ablation interval size reduction
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 47
End Page 52
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 29463938
JaLCDOI 10.18926/AMO/55661
FullText URL 72_1_39.pdf
Author Hosogi, Mika| Morizane, Yuki| Shiode, Yusuke| Doi, Shinichiro| Kumase, Fumiaki| Kimura, Shuhei| Hosokawa, Mio| Hirano, Masayuki| Toshima, Shinji| Takahashi, Kosuke| Fujiwara, Atsushi| Shiraga, Fumio|
Abstract To investigate the effectiveness of a treat-and-extend regimen (TAE) of intravitreal ranibizumab injections (IVR) for macular edema (ME) due to branch retinal vein occlusion (BRVO). We retrospectively examined 35 eyes of 35 patients with ME due to BRVO who underwent TAE for 1 year. Patients whose treatment interval extended to 12 weeks were switched to a pro re nata regimen (PRN; TAE to PRN group), while TAE was continued for patients whose treatment interval was less than 12 weeks (continued TAE group). Changes in best-corrected visual acuity (BCVA), central retinal thickness (CRT), and predictive factors for inclusion in the TAE to PRN group were analyzed. BCVA and CRT both improved significantly at 1 year compared with baseline (p<0.001). Sixteen eyes (45.7%) were included in the TAE to PRN group, while 19 eyes (54.3%) were included in the continued TAE group. BCVA in the TAE to PRN group was significantly better than that in the continued TAE group at 1 year (p=0.047). BCVA at baseline and macular BRVO were significant predictive factors for inclusion in the TAE to PRN group. TAE was effective for improving BCVA and CRT. The TAE to PRN group showed significantly better prognosis.
Keywords branch retinal vein occlusion macular edema anti-vascular endothelial growth factor ranibizumab treat-and-extend regimen
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 39
End Page 45
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 29463937
Web of Science KeyUT 000426542800006
NAID 120006398861
JaLCDOI 10.18926/AMO/55660
FullText URL 72_1_31.pdf
Author Owari, Yutaka| Miyatake, Nobuyuki| Kataoka, Hiroaki|
Abstract Few studies examined the relationship between social participation, physical activity and psychological distress in elderly people. Here we examined these relationships in apparently healthy elderly people. After exclusion of subjects who dropped out or did not meet enrollment criteria, the data of 86 subjects (apparently healthy elderly embers at a college health club; 25 males, 61 females) from July 20 to September 10, 2016 were used. We evaluated each subject’s psychological distress using the K6 questionnaire, social participation by a self-completed questionnaire, and physical activity level by a triaxial accelerometer (7 consecutive days). The K6 scores were significantly correlated with social participation in the total series and the women. The K6 scores of the subjects who had engaged in social participation (1.847±2.231) were significantly lower (better) than those of the subjects who had not (6.714±5.014). Both exercise limitation and social participation were significant predictors of the K6 scores. Our findings indicate that psychological distress in apparently healthy elderly people is not associated with physical activity, but is associated with social participation. Our results demonstrate that in healthy elderly people, participating in a social activity can help improve psychological distress.
Keywords elderly people physical activity psychological distress social participation
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 31
End Page 37
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 29463936
JaLCDOI 10.18926/AMO/55659
FullText URL 72_1_23.pdf
Author Fujiia, Masayoshi| Takata, Katsuyoshi| Chuang, Shih-Sung| Miyata-Takata, Tomoko| Ando, Midori| Sato, Yasuharu| Yoshino, Tadashi|
Abstract The gastrointestinal (GI) tract is the most frequently involved site of extranodal non-Hodgkin lymphomas, and diffuse large B-cell lymphoma (DLBCL) is the most common subtype occurring in the GI tract. TNFAIP3 (A20) genetic alterations were reported to be involved in DLBCL’s pathogenesis and a portion of GI-DLBCL cases harbor this alteration. However, the frequency and clinicopathological relations focusing on small and large intestinal DLBCL are unclear. Here, we examined A20 deletion and protein expression and analyzed the clinicopathological features of 52 cases of primary intestinal DLBCL. The most frequently involved site was the ileocecal region (75%), followed by small bowel (13.5%) and large intestine. Immunohistochemically, the ileocecal cases expressed BCL6 (p=0.027) and MUM1 (p=0.0001) significantly more frequently than the small intestinal cases. Six of 47 cases (13%) had A20 heterozygous deletion, whereas all 6 heterozygously deleted cases had detectable A20 protein expression. In summary, A20 abnormality was less prevalent among intestinal DLBCLs with some discordancy between gene deletion and protein expression. Although the A20 alteration status did not affect any clinicopathological characteristics in this series, further studies exploring alterations of A20 and other NF-κB components in primary intestinal DLBCL are needed.
Keywords primary intestinal diffuse large B-cell lymphoma cell of origin A20 TNFAIP3 heterozygous deletion
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 23
End Page 30
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 29463935
JaLCDOI 10.18926/AMO/55658
FullText URL 72_2_203.pdf
Author Sonekatsu, Mayumi| Sonohata, Motoki| Kitajima, Masaru| Kawano, Shunsuke| Mawatari, Masaaki|
Abstract In patients with poliomyelitis, degenerative arthritis of the hip may be encountered in the paralytic or normal contralateral limb because of leg length discrepancy, pelvic obliquity, or severe deformities of the affected hip. Although total hip arthroplasty (THA) is one of the most common orthopedic procedures, there are few reports of THA in adult patients with residual poliomyelitis. From March 2001 to January 2011, 5 patients with residual poliomyelitis (6 hips) underwent THA using uncemented implants at our hospital. We retrospectively evaluated the Japanese Orthopedic Association (JOA) hip rating score, complications, and radiographs. All five patients’ follow-up information was available: 4.5 years minimum, 8.4 years average, range 4.5-15 years. Surgery was done at the same side of the paralytic limb in 2 hips and contralateral to the paralytic limb in four hips. All patients had pain relief and improvement in function; JOA hip rating score improved significantly from the mean of 45 preoperatively to 78 at the last follow-up (p=0.0313). There was no loosening or osteolysis in this series, and no cases of dislocation, infection or nerve palsy. These findings can contribute to decisions regarding treatment for arthritic hips in adults with residual poliomyelitis.
Keywords total hip arthroplasty poliomyelitis residual neuromuscular disease complication
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 17
End Page 22
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 29463934
Web of Science KeyUT 000426542800003
Related Url isReplacedBy http://doi.org/10.18926/AMO/55864
JaLCDOI 10.18926/AMO/55657
FullText URL 72_1_9.pdf
Author Kataoka, Hiroaki| Miyatake, Nobuyuki| Murao, Satoshi| Tanaka, Satoshi|
Abstract Resistance training is effective against type 2 diabetes (T2DM), but the effect of resistance training on toe pinch force (TPF) is unknown. Here we investigated the effect of short-term toe resistance training on TPF in patients with T2DM, in a prospective, parallel-group, single-blind, randomized controlled trial. Twelve patients with T2DM who were hospitalized to improve glycemic control were enrolled. The patients were randomly allocated to the intervention (n=6) and control (n=6) groups. The intervention group performed traditional aerobic exercise and 4 newly developed toe-resistance training exercises. The control group performed aerobic exercise only. After 2 weeks of the exercise intervention program, we evaluated anthropometric parameters, clinical parameters, motor function, and muscle parameters in each patient. After the exercise intervention program, the TPF and toe muscle quality, isometric knee extension force, and knee muscle quality were significantly higher in the intervention group compared to the control group. Two weeks of toe-resistance training significantly increased the TPF in the T2DM patients. Toe resistance training is thus recommended in clinical practice for patients with T2DM.
Keywords randomized controlled trial type 2 diabetes mellitus toe resistance training toe pinch force toe muscle quality
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 9
End Page 15
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 29463933
JaLCDOI 10.18926/AMO/55656
FullText URL 72_1_1.pdf
Author Saito, Yukihiro| Nakamura, Kazufumi| Ito, Hiroshi|
Abstract The number of permanent pacemaker implantations has been increasing due to the aging of populations worldwide and the increase in the numbers of patients with heart diseases. Commercially available mechanical pacemakers are very useful but still have some problems including short battery life, a risk of infection, the absence of physiological autonomic responsiveness, metal allergy, and electronic interference. A biological pacemaker may resolve these problems and regenerate the cardiac pacemaker. Cell-based therapy and gene therapy have been addressed with the goal of solving the challenges of biological pacemaker. However, the clinical application of a biological pacemaker has not yet been realized. Here we discuss the types of cells that can be used for a biological pacemaker and the problems that remain regarding the clinical applications of cell-based therapy.
Keywords cell therapy pluripotent stem cells cardiomyocytes biological pacemaker hyperpolarization activated cyclic nucleotide gated potassium channel 4
Amo Type Review
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 1
End Page 7
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 29463932
JaLCDOI 10.18926/AMO/55594
FullText URL 71_6_547.pdf
Author Tanimizu, Masakuni| Mizuno, Kenji| Hashimoto, Masayuki|
Abstract We treated a 72-year-old Japanese female with sustained high fever and overall body exhaustion. An infectious liver cyst and right lung pneumonia were suspected causes. Hepatic cystectomy and various antibiotics did not resolve symptoms. Pneumonia exacerbation and ascitic fluid retention, left lumbar spinal osteomyelitis, and peri-gastric lymph node abscess penetrating the stomach were observed. Mycobacterium avium was identified in sputum, ascites, vertebral body abscess puncture specimen, and pus mucus secretion in the stomach. We diagnosed a disseminated nontuberculous mycobacterial infection. She seemed immunocompetent, without signs of AIDS or hematological malignancy. Serum anti-IFN-γ autoantibodies tested positive and were suspected to be involved in the illness onset.
Keywords disseminated nontuberculous mycobacterial infection anti-IFN-γ autoantibodies
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2017-12
Volume volume71
Issue issue6
Publisher Okayama University Medical School
Start Page 547
End Page 552
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29276230
JaLCDOI 10.18926/AMO/55593
FullText URL 71_6_543.pdf
Author Okahara, Shuji| Shimizu, Kazuyoshi| Morimatsu, Hiroshi|
Abstract The electrical activity of the diaphragm (EAdi) shows global diaphragmatic activation and power output from the central nervous system. We measured the EAdi as an indicator of breathing workload in a 40-year-old man suffering from severe acute respiratory distress syndrome (ARDS) secondary to influenza pneumonia in the process of weaning from extracorporeal membrane oxygenation (ECMO). Turning off the sweep gas flow immediately led to EAdi elevation, followed by hypoxia. The patient was successfully weaned from ECMO by reference to EAdi. This is the first case report to suggest that EAdi monitoring might be useful for ARDS patients during ECMO weaning.
Keywords electrical activity of the diaphragm breathing workload respiratory extracorporeal membrane oxygenation acute respiratory distress syndrome
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2017-12
Volume volume71
Issue issue6
Publisher Okayama University Medical School
Start Page 543
End Page 546
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29276229
JaLCDOI 10.18926/AMO/55592
FullText URL 71_6_539.pdf
Author Matoba, Ryo| Morizane, Yuki| Kimura, Shuhei| Toshima, Shinji| Shiraga, Fumio|
Abstract Internal limiting membrane (ILM) peeling is an important maneuver in vitrectomy for macular holes (MHs). A nitinol loop is a surgical instrument designed to create an edge on the ILM and peel the ILM safely and consistently. The effect of using a nitinol loop for ILM peeling on the retina is not clear. We report here on a case of an idiopathic full-thickness MH in an adult woman, in whom retinal damage was revealed after her ILM was peeled using a nitinol loop.
Keywords macular hole macular surgery internal limiting membrane peeling nitinol loop
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2017-12
Volume volume71
Issue issue6
Publisher Okayama University Medical School
Start Page 539
End Page 542
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29276228
JaLCDOI 10.18926/AMO/55591
FullText URL 71_6_531.pdf
Author Ooi, Mayu| Yanamoto, Fujio| Sato, Hitoaki| Takao, Yumiko| Okada, Masako| Egi, Moritoki| Mizobuchi, Satoshi|
Abstract Although spinal cord stimulation (SCS) is a useful treatment for chronic intractable pain, the optimal method of stimulation has not yet been established. In this prospective, crossover study, we compared the efficacy of using a constant current (CC) system with that of a constant voltage (CV) system for temporal SCS. Twenty patients were enrolled and divided into two groups. For 10 patients, a CV system was applied on Days 1-5, followed by the use of a CC system on Days 6-10. For the other 10 patients, a CC system was applied for the first five days, followed by a CV system for the subsequent five days. We evaluated the alteration of pain intensity using a visual analogue scale (VAS), the area of stimulation, the stability of effect, and patient satisfaction regarding treatment. The pain scores decreased significantly after the start of the SCS. There was no significant difference in the change in VAS between the two systems. The stimulation method used for temporal SCS did not affect the reduction of pain intensity. Patients felt a wider stimulation area by the CC system compared to the CV system.
Keywords spinal cord stimulation constant current system constant voltage system chronic intractable pain pain score
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2017-12
Volume volume71
Issue issue6
Publisher Okayama University Medical School
Start Page 531
End Page 537
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29276227
JaLCDOI 10.18926/AMO/55590
FullText URL 71_6_525.pdf
Author Sakoma, Yoshimasa| Hirooka, Takahiko|
Abstract We investigated the anatomical features of the axillary nerve and its accompanying vessels with respect to the lateral wall of the greater tuberosity, focusing on the relationship between the neurovascular bundle and the proximal humeral locking plates. Magnetic resonance images of 30 Japanese patients’ shoulders were examined. Oblique sagittal images across the greater tuberosity and the neurovascular bundle, which contain the axillary nerve and posterior circumflex humeral artery and vein, were obtained. The distance between the superior aspect of the greater tuberosity and the superior and inferior borders of the neurovascular bundles was measured at the anterior, middle, and posterior edges of the greater tuberosity. The neurovascular bundle was 28.5-36.7 mm, 32.6-41.3 mm, and 38.1-47.5 mm distal to the superior aspect of the greater tuberosity at the anterior, middle, and posterior edges, respectively. We evaluated the relationship between the neurovascular bundle and 3 different locking plates, which were placed at the lateral aspect of the greater tuberosity. Only 3 or four locking screws at the most proximal part could be safely inserted without axillary nerve interference.
Keywords proximal humeral fracture locking plate axillary nerve posterior circumflex humeral artery shoulder
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2017-12
Volume volume71
Issue issue6
Publisher Okayama University Medical School
Start Page 525
End Page 529
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29276226
JaLCDOI 10.18926/AMO/55589
FullText URL 71_6_519.pdf
Author Mizukawa, Nobuyoshi| Swe Swe Win| Zaw Moe Thein| Moe Thida Htwe| Yoshioka, Yohsuke| Kimata, Yoshihiro| Iida, Seiji| Khin, Myo| Okada, Shigeru| Sein, Than|
Abstract Oral cancer is a very common disease in South and Southeast Asia. Betel quid (BQ)- chewing and tobaccosmoking habits are etiological factors for oral cancer patients in these regions. We conducted an oral cancer screening in BQ-chewing endemic rural areas in South Myanmar for the early detection of oral cancer in BQ-chewing and smoking individuals. We examined 105 subjects who were at high risk of oral cancer due to their oral habits (BQ users and/or smokers). Three carcinoma cases were detected, and there were 8 dysplasia cases. The carcinoma detection rate was 2.9%, and the carcinoma and precancerous lesion detection rate was 10.5%. In Myanmar, oral cancer screening has been conducted sporadically on a voluntary basis, and nationwide surveys have never been performed. There are also few reports of oral cancer screening for high-risk groups among the general population in Myanmar. Our present findings highlight the need for further screening and surveys. Education on betel quid chewing- and tobacco- related oral diseases and screening for the early detection of oral cancer are of the utmost importance in the control and prevention of oral cancer.
Keywords oral cancer screening betel quid (BQ) Myanmar oral cancer smoking
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2017-12
Volume volume71
Issue issue6
Publisher Okayama University Medical School
Start Page 519
End Page 524
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29276225
JaLCDOI 10.18926/AMO/55588
FullText URL 71_6_513.pdf
Author Sawada, Shigeki| Sugimoto, Ryujiro| Ueno, Tsuyoshi| Yamashita, Motohiro|
Abstract We evaluated the feasibility of maintenance treatment using UFT (a combination of tegafur and uracil) after adjuvant platinum-based chemotherapy in patients with resected lung cancer. A prospective feasibility trial was conducted. Between 2010 and 2014, UFT was administered for 2 years sequentially after platinum-based adjuvant chemotherapy in 24 patients with resected Stage IIA-IIIA non-small cell lung cancer. The safety of UFT and the rate of treatment completion were then evaluated. The prior platinum-based chemotherapy regimens consisted of cisplatin+vinorelbine in 16 patients, carboplatin+paclitaxel in 5 and carboplatin+S-1 in one. During the subsequent UFT administration, a total of 3 patients required a dose reduction because of Grade 1 blood-stained sputum, Grade 2 numbness, and Grade 2 constipation, in one patient each. Eleven patients underwent the planned 2-year UFT administration, but 12 patients could not because of the recurrence of lung cancer in 5 patients, metachronous malignancy in one, and toxicities in 6. The completion rate for UFT administration was 64.7% (11/17). The most common type of toxicity was gastrointestinal toxicities. All of the toxicities were grade 1 or 2, and no severe toxicities were observed. UFT treatment after platinum-based chemotherapy was revealed to be feasible.
Keywords UFT adjuvant chemotherapy lung cancer resection
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2017-12
Volume volume71
Issue issue6
Publisher Okayama University Medical School
Start Page 513
End Page 518
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29276224
JaLCDOI 10.18926/AMO/55587
FullText URL 71_6_505.pdf
Author Honda, Yoshihiro| Takigawa, Nagio| Ichihara, Eiki| Ninomiya, Takashi| Kubo, Toshio| Ochi, Nobuaki| Yasugi, Masayuki| Murakami, Toshi| Yamane, Hiromichi| Tanimoto, Mitsune| Kiura, Katsuyuki|
Abstract (−)-Epigallocatechin-3-gallate (EGCG) has been shown to bind to several receptors including epidermal growth factor receptor (EGFR). EGFR tyrosine kinase inhibitors and anaplastic lymphoma kinase (ALK) inhibitors are effective for non-small cell lung cancers harboring activating EGFR mutations and ALK or c-ros oncogene 1 (ROS1) fusion genes, respectively. We investigated the effects of EGCG on EGFR- or fusion gene-driven lung cancer cells such as PC-9, RPC-9, H1975, H2228 and HCC78. The five cell lines had similar sensitivity to EGCG. Phosphorylated (p)EGFR, pAkt and pErk in PC-9, RPC-9 and H1975 cells were suppressed by EGCG (50 or 100 μM). EGCG also inhibited pALK in H2228, pROS1 in HCC78, and pErk and pAkt in both cell lines. All the xenograft tumors established using the 5 cell lines in EGCG-treated groups were significantly smaller than the tumors in the vehicle-treated groups. The numbers of tumor blood vessels of xenograft tissues in EGCG-treated mice were significantly lower than those in vehicle-treated mice. In conclusion, EGCG may be effective for EGFR-driven lung tumors irrespective of the presence of T790M, and for ALK or ROS1 fusion gene-driven lung tumors.
Keywords epigallocatechin-3-gallate lung cancer EGFR ALK ROS1
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2017-12
Volume volume71
Issue issue6
Publisher Okayama University Medical School
Start Page 505
End Page 512
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2017 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29276223