Acta medica Okayama最新文献_第10页

Reduced Immunogenicity of COVID-19 Vaccine in Obese Patients with Type 2 Diabetes: A Cross-Sectional Study. COVID-19 疫苗对肥胖 2 型糖尿病患者的免疫原性降低：一项横断面研究

IF 0.5 4区医学

Acta medica Okayama Pub Date : 2024-04-01 DOI: 10.18926/AMO/66927

Hiroko Takahashi, Jun Eguchi, Mayu Watanabe, Masanori Nakayama, Jun Wada

引用次数: 0

Photon-Counting Detector CT: Potential for 75% Reduction in Contrast Medium Amount: A Phantom Study. 光子计数探测器 CT：将造影剂用量减少 75% 的潜力：模型研究。

IF 0.5 4区医学

Acta medica Okayama Pub Date : 2024-04-01 DOI: 10.18926/AMO/66916

Fumiyo Higaki, Yusuke Morimitsu, Toshihiro Iguchi, Hayato Saito, Haruhiko Takaki, Ayako Nakagoshi, Maki Wada, Mayu Uka, Noriaki Akagi, Toshiharu Mitsuhashi, Yusuke Matsui, Takao Hiraki

{"title":"Photon-Counting Detector CT: Potential for 75% Reduction in Contrast Medium Amount: A Phantom Study.","authors":"Fumiyo Higaki, Yusuke Morimitsu, Toshihiro Iguchi, Hayato Saito, Haruhiko Takaki, Ayako Nakagoshi, Maki Wada, Mayu Uka, Noriaki Akagi, Toshiharu Mitsuhashi, Yusuke Matsui, Takao Hiraki","doi":"10.18926/AMO/66916","DOIUrl":"https://doi.org/10.18926/AMO/66916","url":null,"abstract":"This study aimed to evaluate the potential reduction in contrast medium utilization using photon-counting detector computed tomography (PCD-CT). One PCD-CT scan (CT1) and three conventional (non-PCD-CT) CT scans (CT2-CT4) were performed using a multi-energy CT phantom that contained eight rods with different iodine concentrations (0.2, 0.5, 1, 2, 5, 10, 15, and 20 mg/ml). The CT values of the seven groups (CT1 for 40, 50, 60, and 70 keV; and CT2-4) were measured. Noise and contrast-to-noise ratio (CNR) were assessed for the eight rods at various iodine concentrations. CT2 and CT1 (40 keV) respectively required 20 mg/ml and 5 mg/ml of iodine, indicating that a comparable contrast effect could be obtained with approximately one-fourth of the contrast medium amount. The standard deviation values increased at lower energy levels irrespective of the iodine concentration. The CNR exhibited a decreasing trend with lower iodine concentrations, while it remained relatively stable across all iodine levels (40-70 keV). This study demonstrated that virtual monochromatic 40 keV images offer a similar contrast effect with a reduced contrast medium amount when compared to conventional CT systems at 120 kV.","PeriodicalId":7017,"journal":{"name":"Acta medica Okayama","volume":"78 2","pages":"135-142"},"PeriodicalIF":0.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140848267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laparoscopic Resection Combined with a Transsacral Approach for a Recurrent Tailgut Cyst with a Refractory Fistula. 经骶骨入路腹腔镜切除术治疗复发性尾肠囊肿伴难治性瘘管。

IF 0.5 4区医学

Acta medica Okayama Pub Date : 2024-04-01 DOI: 10.18926/AMO/66928

Hajime Kashima, Fuminori Teraishi, Yuki Matsumi, Hiroshi Shimamura, Toshiyoshi Fujiwara

引用次数: 0

Lung Oligometastasis of Breast Cancer: Prospective Cohort Study of Treatment Strategies (SBP-06). 乳腺癌的肺寡转移：治疗策略前瞻性队列研究 (SBP-06)。

IF 0.5 4区医学

Acta medica Okayama Pub Date : 2024-02-01 DOI: 10.18926/AMO/66666

Reina Maeda, Tadahiko Shien, Mina Takahashi, Kengo Kawada, Yukiko Kajiwara, Shinichiro Kubo, Daisuke Takabatake, Shoichiro Ohtani, Kinya Matsuoka, Hajime Hikino, Yutaka Ogasawara, Naruto Taira, Shozo Osumi, Masahiko Ikeda, Hiroyoshi Doihara

{"title":"Lung Oligometastasis of Breast Cancer: Prospective Cohort Study of Treatment Strategies (SBP-06).","authors":"Reina Maeda, Tadahiko Shien, Mina Takahashi, Kengo Kawada, Yukiko Kajiwara, Shinichiro Kubo, Daisuke Takabatake, Shoichiro Ohtani, Kinya Matsuoka, Hajime Hikino, Yutaka Ogasawara, Naruto Taira, Shozo Osumi, Masahiko Ikeda, Hiroyoshi Doihara","doi":"10.18926/AMO/66666","DOIUrl":"10.18926/AMO/66666","url":null,"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.","PeriodicalId":7017,"journal":{"name":"Acta medica Okayama","volume":"78 1","pages":"15-20"},"PeriodicalIF":0.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139988991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing the Frequency and Effectiveness of Various Arthroscopic Treatments in the Management of Symptomatic Isolated Medial Meniscus Injuries Including Medial Meniscus Posterior Root Tear: A Retrospective Observational Cohort Study. 评估各种关节镜治疗在处理症状性孤立内侧半月板损伤（包括内侧半月板后根撕裂）中的频率和效果：一项回顾性观察队列研究。

IF 0.5 4区医学

Acta medica Okayama Pub Date : 2024-02-01 DOI: 10.18926/AMO/66667

Masanori Tamura, Takayuki Furumatsu, Yusuke Yokoyama, Keisuke Kintaka, Naohiro Higashihara, Koki Kawada, Toshifumi Ozaki

{"title":"Assessing the Frequency and Effectiveness of Various Arthroscopic Treatments in the Management of Symptomatic Isolated Medial Meniscus Injuries Including Medial Meniscus Posterior Root Tear: A Retrospective Observational Cohort Study.","authors":"Masanori Tamura, Takayuki Furumatsu, Yusuke Yokoyama, Keisuke Kintaka, Naohiro Higashihara, Koki Kawada, Toshifumi Ozaki","doi":"10.18926/AMO/66667","DOIUrl":"10.18926/AMO/66667","url":null,"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.","PeriodicalId":7017,"journal":{"name":"Acta medica Okayama","volume":"78 1","pages":"21-27"},"PeriodicalIF":0.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139989049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long-Term Follow-up Data of a Multi-Institutional Phase-2 Study of S-1/oxaliplatin and Bevacizumab Therapy in Patients with Advanced Colorectal Cancer: The HiSCO-02 Study. S-1/奥沙利铂和贝伐单抗治疗晚期结直肠癌患者的多机构 2 期研究的长期随访数据：HiSCO-02研究

IF 0.5 4区医学

Acta medica Okayama Pub Date : 2024-02-01 DOI: 10.18926/AMO/66670

Manabu Shimomura, Katsunori Shinozaki, Takuya Yano, Shintaro Akabane, Hideki Ohdan

{"title":"Long-Term Follow-up Data of a Multi-Institutional Phase-2 Study of S-1/oxaliplatin and Bevacizumab Therapy in Patients with Advanced Colorectal Cancer: The HiSCO-02 Study.","authors":"Manabu Shimomura, Katsunori Shinozaki, Takuya Yano, Shintaro Akabane, Hideki Ohdan","doi":"10.18926/AMO/66670","DOIUrl":"10.18926/AMO/66670","url":null,"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.","PeriodicalId":7017,"journal":{"name":"Acta medica Okayama","volume":"78 1","pages":"47-52"},"PeriodicalIF":0.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139989053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prostate Biopsy May Not Be Indicated Early after Bacillus Calmette Guérin Treatment. 前列腺活检可能并非卡介苗杆菌治疗后的早期适应症。

IF 0.5 4区医学

Acta medica Okayama Pub Date : 2024-02-01 DOI: 10.18926/AMO/66665

Naoki Akagi, Akihiro Kanematsu, Koji Shigesaka, Kimihiro Shimatani, Shingo Yamamoto

{"title":"Prostate Biopsy May Not Be Indicated Early after Bacillus Calmette Guérin Treatment.","authors":"Naoki Akagi, Akihiro Kanematsu, Koji Shigesaka, Kimihiro Shimatani, Shingo Yamamoto","doi":"10.18926/AMO/66665","DOIUrl":"10.18926/AMO/66665","url":null,"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.","PeriodicalId":7017,"journal":{"name":"Acta medica Okayama","volume":"78 1","pages":"9-13"},"PeriodicalIF":0.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139988992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regression of Necrotic Lesions after Methotrexate Withdrawal in Patients with Methotrexate-Associated Lymphoproliferative Disorders: A Retrospective CT Study. 甲氨蝶呤相关淋巴组织增生性疾病患者停用甲氨蝶呤后坏死病灶的消退：一项回顾性 CT 研究。

IF 0.5 4区医学

Acta medica Okayama Pub Date : 2024-02-01 DOI: 10.18926/AMO/66668

Takahiro Kitayama, Takashi Tanaka, Yuichiro Kanie, Yohei Marukawa, Katsuhide Kojima, Takehiro Tanaka, Soshi Takao, Takao Hiraki

{"title":"Regression of Necrotic Lesions after Methotrexate Withdrawal in Patients with Methotrexate-Associated Lymphoproliferative Disorders: A Retrospective CT Study.","authors":"Takahiro Kitayama, Takashi Tanaka, Yuichiro Kanie, Yohei Marukawa, Katsuhide Kojima, Takehiro Tanaka, Soshi Takao, Takao Hiraki","doi":"10.18926/AMO/66668","DOIUrl":"10.18926/AMO/66668","url":null,"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.","PeriodicalId":7017,"journal":{"name":"Acta medica Okayama","volume":"78 1","pages":"29-36"},"PeriodicalIF":0.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139988994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Utility of Combined Use of Transabdominal Ultrasonography and Fecal Immunochemical Test Examinations in Ulcerative Colitis. 溃疡性结肠炎患者联合使用经腹超声波检查和粪便免疫化学试验检查的效用

IF 0.5 4区医学

Acta medica Okayama Pub Date : 2024-02-01 DOI: 10.18926/AMO/66674

Masahiro Takahara, Sakiko Hiraoka, Masayasu Ohmori, Keiko Takeuchi, Kensuke Takei, Yuki Aoyama, Eriko Yasutomi, Shoko Igawa, Toshihiro Inokuchi, Junki Toyosawa, Yasushi Yamasaki, Hideaki Kinugasa, Keita Harada, Hideki Onishi, Hiroyuki Okada

引用次数: 0

Quantitative Assessment of the Heat Transfer Capacity of Ice Bags and their Cooling Effects on the Skin Surface and Core Temperature. 定量评估冰袋的传热能力及其对皮肤表面和核心温度的降温效果。

IF 0.5 4区医学

Acta medica Okayama Pub Date : 2024-02-01 DOI: 10.18926/AMO/66671

Yukiko Ichikawa, Tetsuya Ogino

{"title":"Quantitative Assessment of the Heat Transfer Capacity of Ice Bags and their Cooling Effects on the Skin Surface and Core Temperature.","authors":"Yukiko Ichikawa, Tetsuya Ogino","doi":"10.18926/AMO/66671","DOIUrl":"10.18926/AMO/66671","url":null,"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.","PeriodicalId":7017,"journal":{"name":"Acta medica Okayama","volume":"78 1","pages":"53-61"},"PeriodicalIF":0.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139988993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0