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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, 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Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Horikawa H, Kurihara Y, Funakoshi T, Umegaki-Arao N, Takahashi H, Kubo A, Tanikawa A, Kodani N, Minami Y, Meguro S, Itoh H, Izumi K, Nishie W, Shimizu H, Amagai M, Yamagami J. Unique clinical and serological features of bullous pemphigoid associated with dipeptidyl peptidase-4 inhibitors. Br J Dermatol 2018; 178:1462-1463. [PMID: 29478242 DOI: 10.1111/bjd.16479] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- H Horikawa
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Y Kurihara
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - T Funakoshi
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - N Umegaki-Arao
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - H Takahashi
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - A Kubo
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - A Tanikawa
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - N Kodani
- Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.,Center for Preventative Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Y Minami
- Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - S Meguro
- Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - H Itoh
- Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - K Izumi
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan
| | - W Nishie
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan
| | - H Shimizu
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan
| | - M Amagai
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - J Yamagami
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
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Okuyama C, Kimura M, Oda M, Kodani N, Aibe N, Yamazaki H. A Case of Thyroid Papillary Carcinoma: Remarkable Decrease in Multiple Lung Metastases within 40 Years after a Single Administration of Radioiodine without Thyroidectomy and with Later Anaplastic Transformation. Case Rep Oncol 2017; 10:928-937. [PMID: 29279694 PMCID: PMC5731137 DOI: 10.1159/000481500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 09/14/2017] [Indexed: 12/31/2022] Open
Abstract
Differentiated thyroid carcinoma is an uncommon malignancy of childhood and adolescence that is unique because it has an overall favorable prognosis despite its relatively high rate of nodal and distant metastases. Total thyroidectomy and positive 131I therapy are recommended for cases with pulmonary metastases. In contrast, anaplastic thyroid cancer is one of the most aggressive malignancies that have an unfavorable and miserable prognosis. We report a case with an impressively long history. The patient had multiple pulmonary metastases that had been diagnosed by 131I administration when he was 14 years old, about 45 years before he underwent thyroidectomy. He had been kept unaware of his disease by his family and received no treatment for most of his life. Pulmonary nodules were noted at several medical checkups and showed a remarkable decrease in size during the untreated 44-year period after the 131I administration. At age 58, his thyroid cancer was first detected and total thyroidectomy was performed, with subsequent radioiodine therapy for pulmonary metastases. Unfortunately, anaplastic carcinoma developed and he died of disseminated tumors later.
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Affiliation(s)
- Chio Okuyama
- Shiga Medical Center, Research Institute, Moriyama, Japan.,Department of Radiology, Graduate School of Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mitsuhiro Kimura
- Department of Otorhinolaryngology, Shimane Prefectural Central Hospital, Izumo, Japan
| | - Minori Oda
- Department of Radiology, Graduate School of Kyoto Prefectural University of Medicine, Kyoto, Japan.,Image Communication Corporation, Kyoto, Japan
| | - Naohiro Kodani
- Department of Radiology, Graduate School of Kyoto Prefectural University of Medicine, Kyoto, Japan.,Department of Radiology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Norihiro Aibe
- Department of Radiology, Graduate School of Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hideya Yamazaki
- Department of Radiology, Graduate School of Kyoto Prefectural University of Medicine, Kyoto, Japan
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Ito S, Ito S, Kodani N, Endo A, Okada T, Watanabe N, Ouchi T, Yoshitomi H, Tanabe K. 4777Clinical utility of 99mTc-PYP and 201Tl-Cl SPECT imaging using quantitative evaluation in patients with suspected cardiac amyloidosis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.4777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Aibe N, Yamazaki H, Nakamura S, Tsubokura T, Kobayashi K, Kodani N, Nishimura T, Okabe H, Yamada K. Outcome and toxicity of stereotactic body radiotherapy with helical tomotherapy for inoperable lung tumor: analysis of Grade 5 radiation pneumonitis. J Radiat Res 2014; 55:575-582. [PMID: 24457315 PMCID: PMC4014169 DOI: 10.1093/jrr/rrt146] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 11/10/2013] [Accepted: 11/27/2013] [Indexed: 06/03/2023]
Abstract
To analyze outcomes and toxicities of stereotactic body radiotherapy with helical tomotherapy (HT-SBRT) for inoperable lung tumors, the medical records of 30 patients with 31 lung tumors treated with HT-SBRT were reviewed. The 3-year local control, cause-specific survival and overall survival rates (LC, CCS and OS, respectively) were analyzed using the Kaplan-Meier method. Toxicities were graded using Common Terminology Criteria for Adverse Events ver. 4. To investigate the factors associated with Grade 5 radiation pneumonitis (G5 RP), several parameters were analyzed: (i) patient-specific factors (age, gross tumor volume and PTV, and the interstitial pulmonary shadow on pretreatment CT); and (ii) dosimetry-specific factors (conformity index, homogeneity index, mean lung dose, and V5, V10, V15, V20 and V25 of the total lungs). The median duration of observation for all patients was 36.5 months (range, 4-67 months). The 3-year LC, CCS and OS were 82, 84 and 77%, respectively. Regarding Grade 3 or higher toxicities, two patients (6.7%) developed G5 RP. GTV was significantly associated with G5 RP (P = 0.025), and there were non-significant but slight associations with developing G5 RP for V5 (P = 0.067) and PTV (P = 0.096). HT-SBRT led to standard values of LC, CCS and OS, but also caused a markedly higher incidence of G5 RP. It is essential to optimize patient selection so as to avoid severe radiation pneumonitis in HT-SBRT.
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Affiliation(s)
- Norihiro Aibe
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
- Department of Radiology, Ujitakeda Hospital, Uji Satojiri 36-26, Uji City, Kyoto 611-0021, Japan
| | - Hideya Yamazaki
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
- Department of Radiology, Ujitakeda Hospital, Uji Satojiri 36-26, Uji City, Kyoto 611-0021, Japan
| | - Satoaki Nakamura
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
- Department of Radiology, Ujitakeda Hospital, Uji Satojiri 36-26, Uji City, Kyoto 611-0021, Japan
| | - Takuji Tsubokura
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Kana Kobayashi
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Naohiro Kodani
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Takuya Nishimura
- Department of Radiology, Ujitakeda Hospital, Uji Satojiri 36-26, Uji City, Kyoto 611-0021, Japan
| | - Haruumi Okabe
- Department of Radiology, Ujitakeda Hospital, Uji Satojiri 36-26, Uji City, Kyoto 611-0021, Japan
| | - Kei Yamada
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
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Yamazaki H, Ogita M, Kodani N, Nakamura S, Inoue H, Himei K, Kotsuma T, Yoshida K, Yoshioka Y, Yamashita K, Udono H. Frequency, outcome and prognostic factors of carotid blowout syndrome after hypofractionated re-irradiation of head and neck cancer using CyberKnife: a multi-institutional study. Radiother Oncol 2013; 107:305-9. [PMID: 23751378 DOI: 10.1016/j.radonc.2013.05.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 04/19/2013] [Accepted: 05/02/2013] [Indexed: 10/26/2022]
Abstract
PURPOSE Re-irradiation has attracted attention as a potential therapy for recurrent head and neck tumors. However, carotid blowout syndrome (CBS) has become a serious complication of re-irradiation because of the associated life-threatening toxicity. Determining of the characteristics of CBS is important. We conducted a multi-institutional study. METHODS AND PATIENTS Head and neck carcinoma patients (n=381) were treated with 484 re-irradiation sessions at 7 Japanese CyberKnife institutions between 2000 and 2010. RESULTS Of these, 32 (8.4%) developed CBS, which proved fatal that median survival time after CBS onset was 0.1 month, and the 1-year survival rate was 37.5%. The median duration between re-irradiation and CBS onset was 5 months (range, 0-69 months). Elder age, skin invasion, and necrosis/infection were identified as statistically significant risk factors after CBS by univariate analysis. The presence of skin invasion at the time of treatment found only in postoperative case, is identified as only statistically significant prognostic factor after CBS in multivariate analysis. The 1-year survival rate for the group without skin invasion was 42%, whereas no patient with skin invasion survived more than 4 months (0% at 1 year, p=0.0049). CONCLUSIONS Careful attention should be paid to the occurrence of CBS if the tumor is located adjacent to the carotid artery. The presence of skin invasion at CBS onset is ominous sign of lethal consequences.
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Affiliation(s)
- Hideya Yamazaki
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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Kobayashi K, Okihara K, Iwata T, Aibe N, Kodani N, Tsubokura T, Kamoi K, Miki T, Yamazaki H. Evaluation of dosimetry and excess seeds in permanent brachytherapy using a modified hybrid method: a single-institution experience. J Radiat Res 2013; 54:479-484. [PMID: 23292147 PMCID: PMC3650751 DOI: 10.1093/jrr/rrs126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 11/29/2012] [Accepted: 11/29/2012] [Indexed: 06/01/2023]
Abstract
Permanent prostate brachytherapy is frequently performed worldwide, and many studies have demonstrated its favorable outcomes. Implant seeds used in this procedure contain a precise amount of radionuclide and are completely sealed. Because these seeds are not manufactured in Japan, they are expensive (6300 yen per seed) and therefore need careful management as a radioisotope. The proper implantation technique requires considerable procedure time, good dosimetric outcomes and simple radioactive isotope management. To evaluate the modified hybrid interactive technique based on these considerations, we assessed 313 patients who underwent hybrid interactive brachytherapy without additional external beam radiotherapy. We evaluated the duration of the procedure, dosimetric factors and the total number of excess seeds. The dosimetric results from computed tomography on Day 30 of follow-up were: 172 Gy (range 130-194 Gy) for pD90, 97.8% (83.5-100%) for pV100, 54.6% (27.5-82.4%) for pV150, 164 Gy (120-220 Gy) for uD90, 194 Gy (126-245 Gy) for uD30, 210 Gy (156-290 Gy) for uD5, 0.02 ml (0-1.2 ml) for rV100 and 0 ml (0-0.2 ml) for rV150. The number of excess seeds was determined by subtracting the number of implanted seeds from the expected number of seeds calculated from previously proposed nomograms. As per our method, nine excess seeds were used for two patients, whereas using the nomograms, the number of excess seeds was approximately eight per patient. Our modified hybrid interactive technique reduced the number of excess seeds while maintaining treatment quality.
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Affiliation(s)
- Kana Kobayashi
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan.
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Yamazaki H, Nakamura S, Nishimura T, Kodani N, Tsubokura T, Kimoto T, Sihomi H, Aibe N, Yoshida K, Koizumi M, Kagiya T. Hypofractionated stereotactic radiotherapy with the hypoxic sensitizer AK-2123 (sanazole) for reirradiation of brain metastases: a preliminary feasibility report. Anticancer Res 2013; 33:1773-1776. [PMID: 23564833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Reirradiation is a challenging field in the treatment of recurrent brain metastases. Because of the elevated risk of radiation toxicity due to previous irradiation, only a limited dose is prescribed. To enhance radiosensitivity, in the present analysis six patients received hypofractionated stereotactic radiotherapy (hSRT) with daily oral administration of the hypoxic sensitizer AK-2123 (sanazole) for progressive brain metastases after previous radiotherapy. The patients received daily oral administration of 1.0 g/day sanazole up to 2 h before radiotherapy. Three partial and three stable responses were observed, with no sanazole-related toxicity, except for a case of mild nausea. Brain failure with subsequent death occurred in one patient. The other patients maintained good performance status until disease progression in other lesions. hSRT with a hypoxic radiation sensitizer appears to have the potential to enhance the efficacy of radiotherapy.
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Affiliation(s)
- Hideya Yamazaki
- Department of Radiology, Kyoto Prefectural University of Medicine, Kawaramachi Hirokoji, Kyoto, Japan.
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Yamazaki H, Nakamura S, Kobayashi K, Tsubokura T, Kodani N, Aibe N, Yoshida K, Kagiya T, Koizumi M, Yamada K. Feasibility trial for daily oral administration of the hypoxic sensitizer AK-2123 (Sanazole) in radiotherapy. Anticancer Res 2013; 33:643-646. [PMID: 23393361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND To examine the feasibility of daily oral administration of the hypoxic tumor radiation sensitizer, sanazole (AK-2123). PATIENTS AND METHODS We analyzed the toxicity associated with 44 treatments of 42 patients, who received daily oral administration of 1 g/day sanazole (level A, 1-9g, 12 treatments; Level B, 10 g, 33 treatments) 2 h before radiotherapy. Eligibility criteria were as follows: Patients who were unable to receive standard treatment because of older age and/or fragile status and/or refractory disease. Five patients with advanced tumors treated with pre- or postoperative adjuvant radiotherapy were also included. RESULTS Toxicity was assessed during 44 treatment sessions. Eight patients (18%) showed sanazole-related paresthesia in the extremities, similar to the rate (15%) reported in a preceding multi-institutional international phase III study, which used intravenous administration. No sanazole-related toxicity rated grade 3 or higher was observed. Forty out of the 44 treatment sessions (91%) were completed. CONCLUSION This study validates the feasibility of daily oral administration of sanazole. Further studies to establish suitable applications are warranted.
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Affiliation(s)
- Hideya Yamazaki
- Department of Radiology, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan.
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Kobayashi K, Okihara K, Kamoi K, Iwata T, Tsubokura T, Aibe N, Kodani N, Miki T, Yamazaki H. PO-166 PERMANENT PROSTATE BRACHYTHERAPY IN JAPANESE PATIENTS WITH SMALL PROSTATE GLANDS. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)72132-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Yamazaki H, Kodani N, Ogita M, Sato K, Himei K. Reirradiation of head and neck cancer focusing on hypofractionated stereotactic body radiation therapy. Radiat Oncol 2011; 6:98. [PMID: 21854640 PMCID: PMC3179722 DOI: 10.1186/1748-717x-6-98] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2011] [Accepted: 08/21/2011] [Indexed: 11/10/2022] Open
Abstract
Reirradiation is a feasible option for patients who do not otherwise have treatment options available. Depending on the location and extent of the tumor, reirradiation may be accomplished with external beam radiotherapy, brachytherapy, radiosurgery, or intensity modulated radiation therapy (IMRT). Although there has been limited experience with hypofractionated stereotactic radiotherapy (hSRT), it may have the potential for curative or palliative treatment due to its advanced precision technology, particularly for limited small lesion. On the other hand, severe late adverse reactions are anticipated with reirradiation than with initial radiation therapy. The risk of severe late complications has been reported to be 20- 40% and is related to prior radiotherapy dose, primary site, retreatment radiotherapy dose, treatment volume, and technique. Early researchers have observed lethal bleeding in such patients up to a rate of 14%. Recently, similar rate of 10-15% was observed for fatal bleeding with use of modern hSRT like in case of carotid blowout syndrome. To determine the feasibility and efficacy of reirradiation using modern technology, we reviewed the pertinent literature. The potentially lethal side effects should be kept in mind when reirradiation by hSRT is considered for treatment, and efforts should be made to minimize the risk in any future investigations.
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Affiliation(s)
- Hideya Yamazaki
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan.
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Yamazaki H, Shiomi H, Tsubokura T, Kodani N, Nishimura T, Aibe N, Udono H, Nishikata M, Baba Y, Ogita M, Yamashita K, Kotsuma T. Quantitative assessment of inter-observer variability in target volume delineation on stereotactic radiotherapy treatment for pituitary adenoma and meningioma near optic tract. Radiat Oncol 2011; 6:10. [PMID: 21272369 PMCID: PMC3040152 DOI: 10.1186/1748-717x-6-10] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Accepted: 01/27/2011] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND To assess inter-observer variability in delineating target volume and organs at risk in benign tumor adjacent to optic tract as a quality assurance exercise. METHODS We quantitatively analyzed 21 plans made by 11 clinicians in seven CyberKnife centers. The clinicians were provided with a raw data set (pituitary adenoma and meningioma) including clinical information, and were asked to delineate the lesions and create a treatment plan. Their contouring and plans (10 adenoma and 11 meningioma plans), were then compared. In addition, we estimated the influence of differences in contouring by superimposing the respective contours onto a default plan. RESULTS The median planning target volume (PTV) and the ratio of the largest to the smallest contoured volume were 9.22 cm3 (range, 7.17-14.3 cm3) and 1.99 for pituitary adenoma, and 6.86 cm3 (range 6.05-14.6 cm3) and 2.41 for meningioma. PTV volume was 10.1±1.74 cm3 for group 1 with a margin of 1-2 mm around the CTV (n=3) and 9.28±1.8 cm3 (p=0.51) for group 2 with no margin (n=7) in pituitary adenoma. In meningioma, group 1 showed larger PTV volume (10.1±3.26 cm3) than group 2 (6.91±0.7 cm3, p=0.03). All submitted plan keep the irradiated dose to optic tract within the range of 50 Gy (equivalent total doses in 2 Gy fractionation). However, contours superimposed onto the dose distribution of the default plan indicated that an excessive dose 23.64 Gy (up to 268% of the default plan) in pituitary adenoma and 24.84 Gy (131% of the default plan) in meningioma to the optic nerve in the contours from different contouring. CONCLUSION Quality assurance revealed inter-observer variability in contour delineation and their influences on planning for pituitary adenoma and meningioma near optic tract.
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Affiliation(s)
- Hideya Yamazaki
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Kyoto 602-8566 Japan.
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14
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Yamazaki H, Yoshida K, Nishimura T, Kobayashi K, Tsubokura T, Kodani N, Aibe N, Nishimura T. Association between skin phototype and radiation dermatitis in patients with breast cancer treated with breast-conserving therapy: suntan reaction could be a good predictor for radiation pigmentation. J Radiat Res 2011; 52:496-501. [PMID: 21905308 DOI: 10.1269/jrr.10169] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Affiliation(s)
- Hideya Yamazaki
- Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kajiicho Kawaramachi Hirokoji, Kamigyo-ku, Japan.
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15
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Kodani N, Yamazaki H, Tsubokura T, Shiomi H, Kobayashi K, Nishimura T, Aibe N, Ikeno H, Nishimura T. Stereotactic body radiation therapy for head and neck tumor: disease control and morbidity outcomes. J Radiat Res 2010; 52:24-31. [PMID: 21127390 DOI: 10.1269/jrr.10086] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We evaluated the efficacy and safety of stereotactic body radiation therapy (SBRT) for patients with head and neck tumors. From April 2005 through April 2008, 34 patients with head and neck tumors were treated with CyberKnife SBRT. Twenty-one of them had prior radiotherapy. Treatment sites were orbit (n = 7), cervical lymph nodes (n = 6), nasopharynx (n = 5), oropharynx (n = 4) and others (n = 12). The prescribed dose ranged from 19.5 to 42 Gy (median, 30 Gy) in 3-8 fractions for consecutive days. The target volume ranged from 0.7 to 78.1 cm(3) (median, 11.6 cm(3)). The median follow-up was 16 months. Treatment was well tolerated without significant acute complications in any cases. Complete response rate and partial response rate were 32.4% and 38.6%, respectively. The overall survival rates were 70.6% and 58.3% at 12 and 24 months, respectively. The overall survival was better in patients without prior radiotherapy within the previous 24 months or in case of smaller target volume. Six patients suffered severe late complications. All these patients had prior radiotherapy, and 2 of them developed massive hemorrhage in the pharynx and both died of this complication 5 and 28 months, respectively, after SBRT. Our preliminary results suggest that SBRT is an effective treatment modality for head and neck tumors. However, re-irradiation has significant risk of severe and even fatal late complications in the form of necrosis and hemorrhage in re-irradiated areas.
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Affiliation(s)
- Naohiro Kodani
- Department of Radiology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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16
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Honma M, Hayashi M, Shimada H, Tanaka N, Wakuri S, Awogi T, Yamamoto KI, Kodani N, Nishi Y, Nakadate M, Sofuni T. Evaluation of the mouse lymphoma tk assay (microwell method) as an alternative to the in vitro chromosomal aberration test. Mutagenesis 1999; 14:5-22. [PMID: 10474816 DOI: 10.1093/mutage/14.1.5] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In order to evaluate the utility of the mouse lymphoma assay (MLA) for detecting in vitro clastogens and spindle poisons and to compare it with the in vitro chromosomal aberration test (CA), we conducted an international collaborative study of the MLA that included 45 Japanese laboratories and seven overseas laboratories under the cooperation of the Ministry of Health and Welfare of Japan and the Japanese Pharmaceutical Manufacturer's Association. We examined 40 chemicals; 33 were reportedly positive in the CA but negative in the bacterial reverse mutation assay, six were negative in both assays and one was positive in both. We assayed mutations of the thymidine kinase (TK) locus (tk) of L5178Y tk +/- mouse lymphoma cells using the microwell method. According to our standard protocol, cells were exposed to the chemical for 3 h, cultured for 2 days and TK-deficient mutants were expressed in 96-well plates under trifluorothymidine. Each chemical was coded and tested by two or three laboratories. Among the 34 CA-positive chemicals, positive MLA results were obtained for 20 and negative results were obtained for nine. The remaining five chemicals were inconclusive or equivocal because of discrepant inter-laboratory results or reproduced discrepant results, respectively. Among the six CA-negative chemicals, one was negative in the MLA, two were positive and three were inconclusive. Thus, the MLA could detect only 59% (20/34) of CA-positive chemicals. We concluded that the MLA was not as sensitive as the CA. Some MLA-negative chemicals evoked positive responses in the CA only after long continuous treatment. These might also be genotoxic in the MLA with long continuous treatment. Improvement of the MLA protocol, including alteration of the duration of the treatment, might render the MLA as sensitive as the CA.
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Affiliation(s)
- M Honma
- Division of Genetics and Mutagenesis, National Institute of Health Sciences, Tokyo, Japan
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17
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Kawano Y, Takaue Y, Mimaya J, Horikoshi Y, Watanabe T, Abe T, Shimizu Y, Matsushita T, Kikuta A, Watanabe A, Iwai A, Ito E, Endo M, Kodani N, Ohta S, Gushi K, Azuma H, Etoh T, Okamoto Y, Amano K, Hattori H, Eguchi H, Kuroda Y. Marginal benefit/disadvantage of granulocyte colony-stimulating factor therapy after autologous blood stem cell transplantation in children: results of a prospective randomized trial. The Japanese Cooperative Study Group of PBSCT. Blood 1998; 92:4040-6. [PMID: 9834207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
In this prospective trial, a total of 74 children who were scheduled to undergo high-dose chemotherapy followed by autologous peripheral blood stem cell transplantation (PBSCT) were prospectively randomized at diagnosis to evaluate the effectiveness of exogenous granulocyte colony-stimulating factor (G-CSF) treatment in accelerating hematopoietic recovery after PBSCT. The diagnosis included acute lymphoblastic leukemia (ALL) (n = 27), neuroblastoma (n = 29), and miscellaneous solid tumors (n = 18). Eligibility criteria included (1) primary PBSCT, (2) chemotherapy-responsive disease, and (3) collected cell number >1 x 10(5) colony-forming unit-granulocyte-macrophage (CFU-GM)/kg and >1 x 10(6) CD34(+) cells/kg patient's body weight. After applying the above criteria, 11 patients were excluded due to disease progression before PBSCT (n = 6) or a low number of harvested cells (n = 5), leaving 63 patients for analysis; 32 patients in the treatment group (300 microg/m2 of G-CSF intravenously over 1 hour from day 1 of PBSCT) and 31 in the control group without treatment. Two distinct disease-oriented high-dose regimens without total body irradiation consisted of the MCVAC regimen using ranimustine (MCNU, 450 mg/m2), cytosine arabinoside (16 g/m2), etoposide (1.6 g/m2), and cyclophosphamide (100 mg/kg) for patients with ALL, and the Hi-MEC regimen using melphalan (180 mg/m2), etoposide (1.6 g/m2), and carboplatinum (1.6 g/m2) for those with solid tumors. Five patients (two in the treatment group and three in the control group) were subsequently removed due to protocol violations. All patients survived PBSCT. The median numbers of transfused mononuclear cells (MNC), CD34(+) cells, and CFU-GM were, respectively, 4.5 (range, 1 to 19) x 10(8)/kg, 8.0 (1.1 to 25) x 10(6)/kg, and 3.7 (1.2 to 23) x 10(5)/kg in the treatment group (n = 30) and 2.9 (0.8 to 21) x 10(8)/kg, 6.3 (1.1 to 34) x 10(6)/kg, and 5.5 (1.3 to 37) x 10(5)/kg, respectively, in the control group (n = 28), with no significant difference. After PBSCT, the time to achieve an absolute neutrophil count (ANC) of >0.5 x 10(9)/L in the treatment group was less than that in the control group (median, 11 v 12 days; the log-rank test, P =.046), although the last day of red blood cell (RBC) transfusion (day 11 v day 10) and the duration of febrile days (>38 degrees C) after PBSCT (4 v 4 days) were identical in both groups. However, platelet recovery to >20 x 10(9)/L was significantly longer in treatment group than control group (26 v 16 days; P =.009) and >50 x 10(9)/L tended to take longer in the treatment group (29 v 26 days; P =.126), with significantly more platelet transfusion-dependent days (27 v 13 days; t-test, P =.037). When patients were divided into two different disease cohorts, ALL patients showed no difference in engraftment kinetics between the G-CSF treatment and control groups, while differences were seen in those with solid tumors. We concluded that the marginal clinical benefit of 1 day earlier recovery of granulocytes could be offset by the delayed recovery of platelets. We recommend that the routine application of costly G-CSF therapy in children undergoing PBSCT should be seriously reconsidered.
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Affiliation(s)
- Y Kawano
- Department of Pediatrics, University Hospital of Tokushima, Tokushima; Stem Cell Transplant Unit, National Cancer Center Hospital, Tokyo, Japan
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Yamamoto T, Nanba Y, Kodani N, Maegaki Y, Shiota M, Koeda T, Ando Y. [Two cases of post-encephalitic epilepsy characterized by auditory cognitive dysfunction; comparison with "a peculiar type of post-encephalitic/encephalopathic epilepsy"]. No To Hattatsu 1995; 27:291-296. [PMID: 7612290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Two cases of post-encephalitic epilepsy mainly characterized by auditory cognitive dysfunction were reported. In acute phase they only showed slight pleocytosis of CSF, and serum antiviral antibodies were all negative. Although their seizures were partial seizures with secondary generalization, their EEG and radiographic imaging did not show any lesions. Their waking state EEG continuously showed slowing with decrease of alpha activities. After clusters of convulsions, they showed delirium and aggressiveness. Both of them were thought to have post-encephalitic epilepsy with pathogen unknown and they were compatible with "a peculiar type of post-encephalitic/encephalopathic epilepsy" reported by Fukuyama and Awaya. The presented two cases were characterized by auditory cognitive dysfunction and intractable epilepsy with secondary generalization.
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Affiliation(s)
- T Yamamoto
- Division of Child Neurology, Tottori University Faculty of Medicine
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Tokuda K, Kodani N, Ogino T. [Three cases of hypofibrinogenemia induced by chemotherapy with a combination of synthetic ACTH and valproic acid]. No To Hattatsu 1994; 26:50-6. [PMID: 8280448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Chemotherapy with a combination of synthetic ACTH (ACTH-Zn) and valproic acid (VPA) induced remarkable hypofibrinogenemia in three children (5 months, 8 months, and 5 years and 10 months old) with intractable epilepsy. The lowest blood fibrinogen (Fbg) levels by this combination therapy were 22, 51 and 64 mg/dl (mean 45.7 mg/dl), respectively. These levels occurred, when ACTH-Zn was administered at an average dose of 0.33 mg/day (0.03 mg/kg/day) and the mean blood concentration of VPA was 59.7 micrograms/ml. With the administration of VPA without ACTH-Zn, the lowest blood Fbg levels were 232, 108 and 170 mg/dl (mean 170 mg/dl), respectively. The mean blood concentration of VPA was 109.0 micrograms/ml. The inadvertent-effects associated with this combination therapy consisted of thrombocytopenia (59,000/microliters) in one case and a mild GPT increase (65-109 IU/l) in three cases. However, all these changes were transient. No bleeding tendency was detected clinically, when this hypo-Fbg-emia appeared. The concentration of VPA and the blood level of Fbg were found inversely correlated with a correlation coefficient of -0.22 (p < 0.01) in 150 serum samples from 91 patients with childhood epilepsy treated with VPA without ACTH-Zn. In the three cases presented, the combination with ACTH-Zn resulted in considerably lower blood Fbg levels than those predicted from the blood VPA concentrations. This indicates that the combination of ACTH-Zn and VPA induces a further decrease of Fbg in blood. The reason why hypo-Fbg-emia results from this combination therapy is unknown.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- K Tokuda
- Department of Pediatrics, Matsuyama Red Cross Hospital, Ehime
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Nouno S, Togawa K, Yamatogi Y, Kodani N, Ikeda M, Kunitomi T. Adverse effects on EEG and clinical condition after immunizing children with convulsive disorders. Acta Paediatr Jpn 1990; 32:357-60. [PMID: 2288215 DOI: 10.1111/j.1442-200x.1990.tb00843.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
116 immunizations were given to 61 children with febrile convulsion or epilepsy who had not had a seizure for 1 year since the last attack. In 92 of the 116 immunizations the electroencephalogram (EEG) was examined before and after immunization. No adverse effects on the EEG were observed in 19 immunizations with Japanese encephalitis, measles, mumps or rubella vaccines. Epileptic spikes reappeared after 10 immunizations and epileptic spikes increased after 10 immunizations among 73 given for diphtheria, acellular pertussis and tetanus (DPT), diphtheria and tetanus (DT), or Bacillus Calmette-Guerin (BCG). A convulsion was observed once in one child 7 days after immunization with BCG. A follow-up EEG examination is necessary after children with convulsive disorders are immunized.
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Affiliation(s)
- S Nouno
- Department of Pediatrics, Tamano City Hospital, Japan
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Kunitomi T, Takigawa H, Sugita M, Nouno S, Suemune M, Inoue M, Kodani N, Oda M, Ikeda M. Antibody-dependent cellular cytotoxicity and natural killer activity against HTLV-1 infected cells. Acta Paediatr Jpn 1990; 32:16-9. [PMID: 2109484 DOI: 10.1111/j.1442-200x.1990.tb00778.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Antibody-dependent cellular cytotoxicity (ADCC) and natural killer (NK) activity were examined using MT-2 cells persistently infected by HTLV-1 as target cells, and mononuclear cells as effector cells, from healthy one-week-old newborn babies, infants, children and adults. More than 10% of ADCC was observed in 17 newborn babies out of 22 (77.3%) and in all 67 healthy one-month-old babies to adults, by adding serum from anti-HTLV-1 positive carriers. When anti-HTLV-1 negative serum was added, less than 10% of ADCC was observed. If infants without anti-HTLV-1 antibodies were breast-fed they had the possibility of HTLV-1 vertical transmission. There was no significant decrease in NK activity between 90 healthy newborn babies, infants, children, or adults. These results suggest that ADCC and NK activity protect against the transmission of HTLV-1 from mother to child.
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Affiliation(s)
- T Kunitomi
- Department of Pediatrics, Okayama University Medical School, Japan
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Kunitomi T, Akazai A, Ikeda M, Oda M, Kodani N. Comparison of acyclovir and vidarabine in immunocompromised children with varicella-zoster virus infection. Acta Paediatr Jpn 1989; 31:702-5. [PMID: 2516397 DOI: 10.1111/j.1442-200x.1989.tb01383.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Intravenous acyclovir and vidarabine were compared in the treatment of varicella-zoster virus (VZV) infection in 25 immunocompromised children--13 with acute lymphocytic leukemia, three with other types of cancer, two with immunodeficiency and in seven undergoing prednisolone treatment. Thirteen had varicella and 12 had herpes zoster. Acyclovir was given intravenously to five patients with varicella and to four with herpes zoster at a dose of 5-10 mg/kg every eight hours. Vidarabine was given intravenously to eight patients with varicella and to eight with herpes zoster at a dose of 10 mg/kg/day. In varicella, vidarabine significantly shortened the time from the start of treatment to cessation of new lesion formation compared with acyclovir. However, there was no significant difference in time to complete crusting between the two treatments. In herpes zoster, acyclovir significantly shortened the time from the onset of the skin lesions to complete crusting. A slight raise of GOT in two cases was reported. While acyclovir and vidarabine were equally effective for VZV infection, in herpes zoster acyclovir was more effective.
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Kunitomi T, Takigawa H, Kanzaki S, Kodani N, Tachibana K, Nouno S. [Intestinal perforation during remission course of acute lymphoblastic leukemia]. Rinsho Ketsueki 1988; 29:1511-5. [PMID: 3216523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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