JaLCDOI 10.18926/AMO/66672
FullText URL 78_1_063.pdf
Author Murakami, Daizo| Nishimoto, Kohei| Takao, Soshi| Miyamaru, Satoru| Kadowaki, Tomoka| Saito, Haruki| Takeda, Hiroki| Ise, Momoko| Suyama, Koichi| Orita, Yorihisa|
Abstract The tyrosine kinase inhibitor lenvatinib has been confirmed as an effective treatment option for patients with unresectable thyroid carcinoma. We conducted a retrospective analysis of the significance of the effect of continued lenvatinib treatment for the longest duration possible at a reasonable daily dose and with a minimum discontinuation period in 42 patients with unresectable thyroid carcinoma treated with lenvatinib between 2015 and 2020. A Cox proportional hazard model-based analysis revealed that the overall survival of the patients treated with a <8 mg/day mean dose of lenvatinib was significantly better than that of the patients treated with 8-24 mg/day (hazard ratio [HR] 0.38 for 1.14-4.54 mg/day, and HR 0.01 for 4.56-7.97 mg/day) adjusted for various factors (e.g., sex, age, drug interruption period). The cumulative dose of lenvatinib administered tended to be higher in the patients treated with low doses (< 8 mg/day) than in the patients treated with relatively high doses (8-24 mg/day). Considering its adverse events, the continuation of lenvatinib treatment with an adequate daily dose and drug interruption may help prolong the survival of patients with unresectable thyroid carcinoma.
Keywords thyroid carcinoma lenvatinib adverse effect survival
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 63
End Page 70
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66666
FullText URL 78_1_015.pdf
Author Maeda, Reina| Shien, Tadahiko| Takahashi, Mina| Kawada, Kengo| Kajiwara, Yukiko| Kubo, Shinichiro| Takabatake, Daisuke| Ohtani, Shoichiro| Matsuoka, Kinya| Hikino, Hajime| Ogasawara, Yutaka| Taira, Naruto| Osumi, Shozo| Ikeda, Masahiko| Doihara, Hiroyoshi|
Abstract While local treatment of metastases is considered to be unrelated to prognosis, previous studies have suggested that local treatment of isolated lung metastases may have positive prognostic impact. We designed this prospective cohort study to investigate the clinical situation and its outcomes. We enrolled patients with fewer than 3 lung nodules suspected of being oligometastases after curative breast cancer surgery. Treatments, including local and systemic therapy, were selected by the physician and patient in consultation. The primary outcome was overall survival (OS); secondary outcomes were the efficacy and the safety of the surgery for lung oligometastases. Between May 2015 and May 2019, 14 patients were enrolled. Resection of lung nodules (metastasectomy) was performed in 11 (78.6%) of 14 patients, and one of these cases was diagnosed as primary lung cancer. Metastasectomies were all performed employing video-assisted thoracic surgery (VATS) without perioperative complications. Systemic therapies were administered to all patients except one. The respective 3-year and 5-year OS rates of patients with lung oligometastases were 91.6% and 81.5%, respectively. Progression occurred in 6 patients: 3 of the 10 with metastasectomy and all 3 without this surgical procedure. Lung metastasectomy was worthwhile as a diagnostic evaluation and may provide long-term benefit in some patients.
Keywords oligometastasis breast cancer lung metastasectomy
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 15
End Page 20
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66675
FullText URL 78_1_085.pdf
Author Miyake, Keisuke| Tanikawa, Tomohiro| Haruma, Ken| Kawada, Mayuko| Ishii, Katsunori| Urata, Noriyo| Nishino, Ken| Suehiro, Mitsuhiko| Kawanaka, Miwa| Manabe, Noriaki| Kawamoto, Hirofumi|
Abstract A 30-year-old man with idiopathic peptic ulcer disease (IPUD) experienced repeated recurrence of ulcerative bleeding despite treatment with lansoprazole and then vonoprazan. Further evaluation suggested that the cause of the ulcer was strong contractile movements of the antrum. This prompted the co-administration of trimebutine maleate (TM) and vonoprazan to relieve the stomach contractions. TM was effective in preventing the recurrence of ulcerative bleeding, and the patient has remained in remission for 4 years. This case highlights the potential efficacy of TM in treating IPUD and the importance of considering hypercontractility as the underlying cause in cases of IPUD.
Keywords gastric ulcer idiopathic peptic ulcerative disease trimebutine maleate
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 85
End Page 88
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66673
FullText URL 78_1_071.pdf
Author Kaneda, Daisuke| Nishida, Keiichiro| Nasu, Yoshihisa| Nakahara, Ryuichi| Harada, Ryozo| Hotta, Yoshifumi| Naniwa, Shuichi| Ozaki, Toshifumi|
Abstract We retrospectively investigated the mid-term outcomes of arthroplasty using the AVANTA silicone implant for thumb metacarpophalangeal (MCP) joints with boutonniere deformity in patients with rheumatoid arthritis (RA). This study involved 36 thumbs of 33 RA patients with a mean follow-up period of 5.1 years (range, 2.0-13.3). Postoperatively, the mean extension was significantly increased and the mean flexion was significantly decreased (p<0.001, p<0.001, respectively), resulting in the mean arc of range of motion (ROM) shifting in the direction of extension after surgery. Implant fracture was observed in 10 thumbs (28%), and 4 of these (11%) underwent revision surgery. The survivorship with implant fracture and revision surgery as endpoints were 73.4% and 91.8% at 5 years, respectively. The preoperative arc of ROM and the postoperative flexion range of the implant-fracture group were significantly greater than those in the no-implant-fracture group (p=0.039, 0.034, respectively). These results suggest the importance of patient education and careful rehabilitation to prevent excessive flexion. Overall, the AVANTA silicone implant showed a relatively high rate of implant fracture at our institute.
Keywords AVANTA silicone implant boutonniere deformity implant fracture thumb metacarpophalangeal joint arthroplasty rheumatoid arthritis
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 71
End Page 78
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66670
FullText URL 78_1_047.pdf
Author Shimomura, Manabu| Shinozaki, Katsunori| Yano, Takuya| Akabane, Shintaro| Ohdan, Hideki| Hiroshima Surgical study group of Clinical Oncology (HiSCO)|
Abstract Oral fluoropyrimidines (FUs) have certain advantages over intravenous FUs, such as longer intervals between outpatient visits, no requirement for central venous port (CVP) implantation, and lower incidence of neutropenia. We previously reported the efficacy of S-1/oxaliplatin (SOX) with bevacizumab therapy as a first-line treatment for advanced colorectal cancer (CRC) in a prospective phase-II multi-institutional clinical trial (HiSCO-02 study). However, our prognostic data at the time lacked a sufficient observation period. Herein, we analyze the longer-term follow-up data, focusing on the status of eventual CVP implantation via an open-label, non-randomized, multicenter study. This study enrolled 55 patients (mean age, 64 years), of whom 43 died (41 of primary cancer). The median overall survival was 22.7 months (95% CI: 20.1-34.7 months). Post-treatment regimens after failure of first-line treatment were initiated in 43 patients; CPT11-based regimens were selected in most cases, and other oral FU combinations in nine. CVP was implanted in 35 patients prior to first-line treatment; eleven of the remaining 20 patients did not require CVP implantation. In conclusion, we report here the final prognostic update of the Phase II clinical trial examining the efficacy of SOX plus bevacizumab therapy, the results of which confirm the clinical efficacy of this regimen.
Keywords metastatic colorectal cancer chemotherapy S-1 prospective phase II study
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
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 Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66664
FullText URL 78_1_001.pdf
Author Sun, Cuiming| Matsukawa, Akihiro|
Abstract Liver fibrosis, which ultimately leads to liver cirrhosis and hepatocellular carcinoma, is a major health burden worldwide. The progression of liver fibrosis is the result of the wound-healing response of liver to repeated injury. Hepatic macrophages are cells with high heterogeneity and plasticity and include tissue-resident macrophages termed Kupffer cells, and recruited macrophages derived from circulating monocytes, spleen and peritoneal cavity. Studies have shown that hepatic macrophages play roles in the initiation and progression of liver fibrosis by releasing inflammatory cytokines/chemokines and pro-fibrogenic factors. Furthermore, the development of liver fibrosis has been shown to be reversible. Hepatic macrophages have been shown to alternately regulate both the regression and turnover of liver fibrosis by changing their phenotypes during the dynamic progression of liver fibrosis. In this review, we summarize the role of hepatic macrophages in the progression and regression of liver fibrosis.
Keywords ERK-MAPK SPRED2 fibrosis macrophages
Amo Type Review
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 1
End Page 8
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66671
FullText URL 78_1_053.pdf
Author Ichikawa, Yukiko| Ogino, Tetsuya|
Abstract Ice bags are frequently used in medical care settings for pain relief, comfort, and in some cases, whole-body cooling. This study quantifies heat energy transfer capacity of ice bags and evaluates their cooling effects on body temperature. Forty-eight healthy adults in their 20s were recruited. An ice bag wrapped in two layers of dry towel was applied to the forehead, neck, or palm of each participant for 10 min. The skin surface temperature, heat flow, and core temperature were recorded during the cooling and non-cooling periods, with energy transfer calculated by integrating heat flow over time. Over the non-cooling period, 31.4-53.6 kJ·m-2 of energy was dissipated over 10 min, whereas during the cooling period, the range increased to 180.0-218.7 kJ·m-2 over 10 min. Skin surface temperature decreased by 3.2-5.7°C, whereas core temperature was unchanged. Ice bag use augmented energy transfer by about 150-180 kJ·m-2 over 10 min, but this was insufficient for rapid whole body cooling due to the small skin-surface area in contact with the ice bag. The measured energy transfer indicated that topical ice bag application absorbs insufficient energy to affect core temperature. Quantitative assessment of energy transfer was shown to inform the safe and appropriate use of thermotherapy.
Keywords cold compress fever hyperthermia thermal conductivity thermoregulation
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 53
End Page 61
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66674
FullText URL 78_1_079.pdf
Author Takahara, Masahiro| Hiraoka, Sakiko| Ohmori, Masayasu| Takeuchi, Keiko| Takei, Kensuke| Aoyama, Yuki| Yasutomi, Eriko| Igawa, Shoko| Inokuchi, Toshihiro| Toyosawa, Junki| Yamasaki, Yasushi| Kinugasa, Hideaki| Harada, Keita| Onishi, Hideki| Okada, Hiroyuki|
Abstract This study examined the utility of the combined use of transabdominal ultrasonography (TUS) and fecal immunochemical testing (FIT) to detect mucosal inflammation, vis-a-vis the Mayo endoscopic subscore (MES), in ulcerative colitis (UC). Sixty-three UC patients who underwent TUS and FIT were retrospectively enrolled. For TUS, the colon was divided into five segments, and the bowel wall thickness was measured and evaluated. The accuracy of FIT (> 100 ng/ml) in detecting mucosal inflammation (MES>0) was 0.93, whereas that of TUS (BWT>2 mm) in each segment was 0.84-0.97. The combined use of TUS and FIT may be helpful in noninvasive treatment strategies.
Keywords transabdominal ultrasonography fecal immunochemical test ulcerative colitis Mayo endoscopic subscore
Amo Type Short Communication
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 79
End Page 83
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66668
FullText URL 78_1_029.pdf
Author Kitayama, Takahiro| Tanaka, Takashi| Kanie, Yuichiro| Marukawa, Yohei| Kojima, Katsuhide| Tanaka, Takehiro| Takao, Soshi| Hiraki, Takao|
Abstract This retrospective study investigated whether necrotic lesions detected on a computed tomography (CT) scan are more regressive than non-necrotic lesions after methotrexate withdrawal in patients pathologically diagnosed with methotrexate-associated lymphoproliferative disorders (MTX-LPD). In total, 89 lesions extracted from 24 patients on CT scans were included in the analysis. All patients had been evaluated for the presence of necrosis within lesions via CT scan upon first suspicion of MTX-LPD (baseline CT scan). The percentage lesion size reduction between the baseline and initial follow-up CT scan was calculated. The association between necrosis within lesions and size changes was estimated via linear regression analyses using both crude and adjusted models. Necrosis was significantly more common in extranodal lesions (27 out of 30 lesions, 90%) than in nodal lesions (9 out of 59 lesions, 15%, p<0.001). In the crude model, the regression of necrotic lesions was 58.5% greater than that of non-necrotic lesions; the difference was statistically significant (p<0.001). Additionally, the longest diameter of necrotic lesions at the baseline CT scan was significantly greater than that of non-necrotic lesions (p<0.001). Based on the adjusted model, necrotic lesions showed 49.3% greater regression than non-necrotic lesions (p=0.017). Necrosis detected on a CT scan was found to be an independent predictor of regression after MTX withdrawal in patients with MTX-LPD.
Keywords methotrexate lymphoproliferative disorder computed tomography necrosis
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 29
End Page 36
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66676
FullText URL 78_1_089.pdf
Author Toshima, Kei| Shien, Tadahiko| Nishimura, Midori Filiz| Suzuki, Yoko| Nakamoto, Shogo| Uno, Maya| Yoshioka, Ryo| Tsukioki, Takahiro| Takahashi, Yuko| Iwamoto, Takayuki| Iwatani, Tsuguo| Yanai, Hiroyuki|
Abstract We report our experience with the diagnosis and treatment of an ectopic breast cancer arising within an axillary lymph node. The patient was a 65-year-old woman diagnosed breast cancer and axillary lymph node metastasis. We performed a partial mastectomy and axillary lymph node dissection. Postoperative pathology revealed no malignant lesions in the breast; however, a nodule in one of axillary lymph nodes had mixed benign and malignant components, leading to a diagnosis of invasive ductal carcinoma derived from ectopic mammary tissue. This case represents a very rare form of breast cancer, and the malignancy was difficult to distinguish from metastasis.
Keywords breast cancer ectopic breast cancer axillary lymph node
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 89
End Page 93
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66665
FullText URL 78_1_009.pdf
Author Akagi, Naoki| Kanematsu, Akihiro| Shigesaka, Koji| Shimatani, Kimihiro| Yamamoto, Shingo|
Abstract Bacillus Calmette-Guérin (BCG) treatment for non-muscle-invasive bladder cancer frequently causes an intraprostatic BCG granuloma. We investigated the optimal timing for a prostate biopsy after BCG treatment by retrospectively analyzing the cases of 22 patients with non-muscle-invasive bladder cancer who underwent a prostate biopsy after BCG treatment at our institute (2013-2017). Biopsies were indicated for a rising prostate-specific antigen (PSA) level, positive digital rectal examination findings, or the appearance of de novo low apparent diffusion coefficient lesions on MRI. The control group was comprised of 28 age- and PSA-matched patients. The relationships among the cancer detection rate and the patients’ PSA levels and MRI findings were analyzed. Prostate cancer was detected by biopsy in only 13.9% (3/22) of the patients in the BCG group but in 78.5% (22/28) of the control patients (p=0.0001). The three patients in the BCG group in whom prostate cancer was detected had all undergone the biopsy > 1 year after their BCG treatment. The remaining biopsies were performed within 1 year after BCG treatment and resulted in no diagnoses of prostate cancer. We suggest that performing a prostate biopsy early after BCG treatment is not informative or useful.
Keywords bacillus Calmette-Guérin prostate granuloma prostate cancer bladder cancer prostate biopsy
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 9
End Page 13
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66669
FullText URL 78_1_037.pdf
Author Tanaka, Masato| Meena, Umesh| Taoka, Takuya| Fujiwara, Yoshihiro| Yokomizo, Daiichiro| Bashyal, Santosh Kumar| Sake, Naveen| Arataki, Shinya|
Abstract In adult spinal deformity (ASD) surgery, one of the key factors working to prevent proximal junctional kyphosis is the proximal anchor. The aim of this study was to compare clinical and radiographic outcomes of triangular fixation with conventional fixation as proximal anchoring techniques in ASD surgery. We retrospectively evaluated 54 patients who underwent corrective spinal fusion for ASD. Fourteen patients underwent proximal triangular fixation (Group T; average 74.6 years), and 40 patients underwent the conventional method (Group C; average 70.5 years). Clinical and radiographic outcomes were assessed using visual analogue scale (VAS) values for back pain and the Oswestry disability index (ODI). Radiographic evaluation was also collected preoperatively and postoperatively. Surgical times and intraoperative blood loss of the two groups were not significantly different (493 vs 490 min, 1,260 vs 1,173 mL). Clinical outcomes such as VAS and ODI were comparable in the two groups. Proximal junctional kyphosis in group T was slightly lower than that of group C (28.5% vs 47.5%, p=0.491). However, based on radiology, proximal screw pullout occurred significantly less frequently in the triangular fixation group than the conventional group (0.0% vs 22.5%, p=0.049). Clinical outcomes in the two groups were not significantly different.
Keywords adult spinal deformity proximal junctional kyphosis triangular fixation minimally invasive surgery C arm free
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 37
End Page 46
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66667
FullText URL 78_1_021.pdf
Author Tamura, Masanori| Furumatsu, Takayuki| Yokoyama, Yusuke| Kintaka, Keisuke| Higashihara, Naohiro| Kawada, Koki| Ozaki, Toshifumi|
Abstract The use of various strategies for arthroscopic meniscal repairs to save the meniscus and prevent the progression of knee osteoarthritis has gradually increased. We investigated the frequency of various arthroscopic treatments and the short-term clinical outcomes of symptomatic isolated medial meniscus (MM) injuries. This retrospective observational study included 193 patients (197 knees) who underwent arthroscopic meniscal treatment for isolated MM injuries between January 2016 and April 2019. Arthroscopic meniscal repairs were divided into two groups: transtibial pullout repairs of MM posterior root tears (MMPRTs) and arthroscopic meniscal repairs for other types of MM injuries. MMPRT pullout repair, other meniscal repairs, and partial meniscectomy were performed in 71.0%, 16.8%, and 12.2% of the knees, respectively. The ratio of women to men and the patient age were higher in the pullout-repair group than the meniscal-repair group. The Preoperative Knee Injury and Osteoarthritis Outcome Score subscale (as an index of daily living activities) was significantly lower in the pullout-repair group than the meniscus-repair group. However, no significant differences were observed in these scores among the two groups postoperatively. Our results suggest that familiarity with the diagnosis and treatment of MMPRTs is necessary for orthopedic surgeons to manage isolated MM injuries.
Keywords knee medial meniscus posterior root tear arthroscopy pullout repair
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2024-02
Volume volume78
Issue issue1
Publisher Okayama University Medical School
Start Page 21
End Page 27
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66153
FullText URL 77_6_613.pdf
Author Miyake, Yoshiaki| Namba, Yoshifumi| Mitani, Shigeru| Umehara, Norifumi| Kawamoto, Toyohiro| Furuichi, Shuro|
Abstract The relationship between osteoarthritis (OA) of the lower extremity and shoulder OA has not been established. This study evaluated the prevalence of shoulder OA in patients with knee OA. We collected contrast-enhanced computed tomography (CECT) images of the shoulder joints of 105 patients with knee OA that were taken 1 week after they underwent primary knee arthroplasty to check for venous thromboembolism (VTE). The images were compared with CECT images of 110 control-group patients that were taken for the purpose of differentiating VTE. Shoulder OA was present in a significantly higher percentage of patients with knee arthroplasty than controls (29% versus 15%), and the difference was particularly pronounced in patients in their 70s (33%) compared to age-matched controls (11%). Patients with knee OA often use arm support to stand up or walk due to knee joint pain and muscle weakness, which places the weight-bearing shoulder at risk of developing OA.
Keywords shoulder osteoarthritis knee osteoarthritis weight-bearing shoulder knee arthroplasty
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2023-12
Volume volume77
Issue issue6
Publisher Okayama University Medical School
Start Page 613
End Page 618
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66154
FullText URL 77_6_619.pdf
Author Oe, Kenichi| Iida, Hirokazu| Sogawa, Shohei| Kobayashi, Fumito| Nakamura, Tomohisa| Saito, Takanori|
Abstract This study retrospectively evaluated 41 consecutive open reductions and internal fixations following primary or revision total hip arthroplasty, which required trochanteric claw plate fixation for greater trochanteric fracture or osteotomy between January 2008 and December 2020. The mean duration of clinical follow-up was 4.2 years (range, 1-13 years). The patients included 13 men and 28 women, with a mean age of 68 years (range, 32-87 years). The indications for intervention included trochanteric osteotomy, intraoperative fracture, and non-union including postoperative fracture in 6, 9, and 26 cases, respectively. The mean Merle d’Aubigné Clinical Score improved from 9.4 points (range, 5-15 points) pre-operatively, to 14.3 points (range, 9-18 points) at the last follow-up. Bone union occurred in 35 cases (85%), while implant breakage occurred in four cases. At the last follow-up, the mean Merle d’Aubigné Clinical Scores of bone union and non-union were 15.3 and 14.1, respectively (p=0.48). The Kaplan-Meier survival rate, with the endpoint being revision surgery for pain, non-union, dislocation, or implant breakage, at 10 years was 80.0% (95% confidence interval: 62.6-97.4%). Greater trochanteric fixation using a trochanteric claw plate yielded successful results.
Keywords greater trochanteric fracture trochanteric osteotomy claw plate total hip arthroplasty
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2023-12
Volume volume77
Issue issue6
Publisher Okayama University Medical School
Start Page 619
End Page 625
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66152
FullText URL 77_6_607.pdf
Author Tani, Yasunari| Kashima, Saori| Mitsuhashi, Toshiharu| Suzuki, Etsuji| Takao, Soshi| Yorifuji, Takashi|
Abstract Many studies have shown an association between long-term exposure to particulate matter having an aerodynamic diameter of 2.5 μm or less (PM2.5) and diabetes mellitus (DM), but few studies have focused on Asian subjects. We thus examined the association between long-term exposure to PM2.5 and DM prevalence in Okayama City, Japan. We included 76,591 participants who had received basic health checkups in 2006 and 2007. We assigned the census-level modeled PM2.5 data from 2006 and 2007 to each participant and defined DM using treatment status and the blood testing. PM2.5 was associated with DM prevalence, and the prevalence ratio (95% confidence interval) was 1.10 (1.00-1.20) following each interquartile range increase (2.1 μg/m3) in PM2.5. This finding is consistent with previous results and suggests that long-term exposure to PM2.5 is associated with an increased prevalence of DM in Okayama City, Japan, where the PM2.5 level is lower than in other cities in Asian countries.
Keywords air pollution diabetes mellitus epidemiology glycosylated hemoglobin particulate matter
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2023-12
Volume volume77
Issue issue6
Publisher Okayama University Medical School
Start Page 607
End Page 612
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66149
FullText URL 77_6_577.pdf
Author Liu, Siyu| Athurupana, Rukmali| Han, Hongmei| Yang, Titi| Nakatsuka, Mikiya|
Abstract Bereavement care is conducted to meet the emotional needs of grieving couples who are devastated by the experience of a miscarriage or stillbirth. From January to April 2022, we distributed a questionnaire that assessed the knowledge and attitudes of Japanese nursing staff (nurses and midwives) in Japan’s Chugoku-Shikoku region toward bereavement care for couples with miscarriage/stillbirth. The 370 survey respondents’ answers revealed that the nursing staff’s knowledge regarding recurrent pregnancy loss and subsequent bereavement care was insufficient. About 41.1% and 64.1% of the respondents had received school and on-the-job education in bereavement care, respectively, and 79.2% expressed willingness to provide such care. Our analyses revealed that the following factors were associated with the nursing staff’s knowledge level: parent status, age, reproductive history, midwifery license, work experience and environment, and on-the-job education. The following were correlated with the staff’s willingness to provide bereavement care: work environment, midwifery license, bereavement care knowledge, and on-the-job education. Together our findings indicate that education plays a significant role in equipping caregivers to provide effective bereavement care for couples who have experienced a miscarriage or stillbirth.
Keywords midwife nurse miscarriage bereavement knowledge
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2023-12
Volume volume77
Issue issue6
Publisher Okayama University Medical School
Start Page 577
End Page 587
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66148
FullText URL 77_6_567.pdf
Author Matsumoto, Naomi| Higuchi, Chigusa| Miyaji, Chikara| Mitsuhashi, Toshiharu| Hagiya, Hideharu| Takao, Soshi| Yorifuji, Takashi|
Abstract This paper presents the results of a series of surveys conducted from July 2021 to March 2023 to investigate the post-vaccination adverse reactions to the mRNA-1273 (Moderna) vaccine among faculty, staff, and students at Okayama University. These studies complement the official surveys conducted by the Ministry of Health, Labour and Welfare (MHLW) and provide a more representative picture of adverse reactions in the general population including large numbers of healthy young people. Pain, swelling, redness at the injection site, fever, headache, and malaise were the main adverse reactions reported. The proportion of adverse reactions was generally higher after the second vaccination and decreased with each additional vaccination. No statistically significant differences in the adverse reactions were found for males and females and those with/without a history of allergy, but a lower proportion of fever was observed in older participants and those with underlying medical conditions. We also evaluated the association between adverse reactions and antibody titers after the third vaccination and found no significant differences in antibody levels one month after vaccination. This series of studies highlights the importance of conducting surveys in diverse populations to provide a more representative picture of post-vaccination adverse reactions during a pandemic.
Keywords coronavirus disease 2019 adverse reactions mRNA vaccine antibody titers young adults
Amo Type Review
Publication Title Acta Medica Okayama
Published Date 2023-12
Volume volume77
Issue issue6
Publisher Okayama University Medical School
Start Page 567
End Page 575
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66150
FullText URL 77_6_589.pdf
Author Omichi, Ryotaro| Kariya, Shin| Maeda, Yukihide| Fukushima, Kunihiro| Kataoka, Yuko| Sugaya, Akiko| Nishizaki, Kazunori| Ando, Mizuo|
Abstract Choosing the optimal side for cochlear implantation (CI) remains a major challenge because of the lack of evidence. We investigated the choice of the surgery side for CI (i.e., the better- or poorer-hearing ear) in patients with asymmetric hearing. Audiological records of 74 adults with a unilateral hearing aid who had undergone surgery at Okayama University Hospital were reviewed. The definition of ‘better-hearing ear’ was the aided ear, and the unaided ear was considered the poorer-hearing ear. We performed a multiple regression analysis to identify potential predictors of speech recognition performance after unilateral CI in the patients. Fifty-two patients underwent CI in the poorer-hearing ear. The post-Ci bimodal hearing rate was far higher in the poorer-ear group (77.8% vs. 22.2%). A multivariate analysis revealed that prelingual hearing loss and the patient’s age at CI significantly affected the speech recognition outcome (beta coefficients: 24.6 and −0.33, 95% confidence intervals [11.75-37.45] and [−0.58 to −0.09], respectively), but the CI surgery side did not (−6.76, [−14.92-1.39]). Unilateral CI in the poorer-hearing ear may therefore be a reasonable choice for adult patients with postlingual severe hearing loss, providing a greater opportunity for postoperative bimodal hearing.
Keywords cochlear implantation poorer hearing ear better hearing ear hearing aids speech recognition
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2023-12
Volume volume77
Issue issue6
Publisher Okayama University Medical School
Start Page 589
End Page 593
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
JaLCDOI 10.18926/AMO/66155
FullText URL 77_6_627.pdf
Author Hibino, Yumi| Okazawa-Sakai, Mika| Yokoyama, Takanori| Fujimoto, Etsuko| Okame, Shinichi| Teramoto, Norihiro| Takehara, Kazuhiro|
Abstract To explore the incidence of abnormal vaginal cytology after total laparoscopic hysterectomy for the treatment of cervical intraepithelial neoplasia 3, we retrospectively analyzed the medical records of patients treated at NHO Shikoku Cancer Center (Japan) in 2014-2019. The cases of 99 patients who underwent a laparoscopic (n=36) or open (n=63) hysterectomy and postoperative follow-up were examined. Abnormal vaginal cytology was detected in 13.9% (5/36) of the laparoscopic-surgery (LS) group and 14.3% (9/63) of the open-surgery (OS) group. A vaginal biopsy was performed at the physicians’ discretion; one LS patient and six OS patients were diagnosed with vaginal intraepithelial neoplasia. The cumulative incidence of abnormal vaginal cytology at 3 years post-hysterectomy was 21.4% (LS group) and 20.5% (OS group), a nonsignificant difference. A multivariate analysis showed that age > 50 years was the only independent risk factor for abnormal vaginal cytology among the covariates examined including age; body mass index; histories of vaginal delivery, abdominal surgery, and smoking; and surgical approach (hazard ratio 8.11; 95% confidence interval 1.73-37.98; p=0.01). These results suggest that the occurrence of abnormal vaginal cytology after a hysterectomy may not be influenced by the laparoscopic procedure but is associated with older age.
Keywords total laparoscopic hysterectomy vaginal intraepithelial neoplasia cervical intraepithelial neoplasia vaginal cytology risk factor
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2023-12
Volume volume77
Issue issue6
Publisher Okayama University Medical School
Start Page 627
End Page 634
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True