WEKO3
アイテム
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We examined the effect of short course preoperative carbon-ion radiotherapy (CIRT) in terms of reducing the rate of local recurrence in patients undergoing resection for adenocarcinoma of the pancreas.\nMaterials/Methods: Patients with radiographically resectable pancreatic cancer were enrolled from October 2003 to July 2010. Eligibility included no CT involvement of celiac artery or SMA; adequate renal, hepatic and hematopoietic function; and ECOG PS 0-2. CIRT was given once daily, 4 days a week, for a fixed 8 fractions in 2 weeks. The dose was set to 30.0GyE and escalated to 36.8GyE at 5% increments with 5 levels. Treatment volumes included the location of the primary tumor and regional lymph nodes and retroperitoneal area. Surgery was performed 2-4 weeks after completion of CIRT.\nResults: Twenty-eight patients were enrolled on study. Twenty-five patients are eligible for this analysis. Five patients were treated at each of dose levels 1-2. Three patients were at dose level 3. Six patients were at each of dose levels 4-5. Twenty-one patients (84%) underwent resection. Reasons for no resections were: metastatic disease-3 and refusal-1 those were at dose levels 1-2. Although grade 3/4 toxicities were noted in 2 patients (liver abscess-1, PV thrombus-1), both of them were unrelated directly to CIRT. Median follow-up time is 13.9 months (range, 3.2-73.1). There has been no local failure in postoperative patients. Metastatic failure has occurred in 17 out of 25 patients (68%). 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Efficacy and Safety of Short Course Carbon-ion Radiotherapy for Patients with Preoperative Pancreatic Cancer
https://repo.qst.go.jp/records/70566
https://repo.qst.go.jp/records/705663a50f371-a252-4d32-8e10-27290bd1821e
Item type | 会議発表用資料 / Presentation(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2011-10-11 | |||||
タイトル | ||||||
タイトル | Efficacy and Safety of Short Course Carbon-ion Radiotherapy for Patients with Preoperative Pancreatic Cancer | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
資源タイプ | conference object | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Shinoto, Makoto
× Shinoto, Makoto× Yamada, Shigeru× Yasuda, Shigeo× Imada, Hiroshi× Kamada, Tadashi× Tsujii, Hirohiko× 篠藤 誠× 山田 滋× 安田 茂雄× 今田 浩史× 鎌田 正× 辻井 博彦 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Purpose/Objective(s): Complete surgical resection is the only curative treatment for pancreatic cancer. Even if a curative resection is performed, the disease usually recurs, and the half of the failure pattern is local recurrence. We examined the effect of short course preoperative carbon-ion radiotherapy (CIRT) in terms of reducing the rate of local recurrence in patients undergoing resection for adenocarcinoma of the pancreas. Materials/Methods: Patients with radiographically resectable pancreatic cancer were enrolled from October 2003 to July 2010. Eligibility included no CT involvement of celiac artery or SMA; adequate renal, hepatic and hematopoietic function; and ECOG PS 0-2. CIRT was given once daily, 4 days a week, for a fixed 8 fractions in 2 weeks. The dose was set to 30.0GyE and escalated to 36.8GyE at 5% increments with 5 levels. Treatment volumes included the location of the primary tumor and regional lymph nodes and retroperitoneal area. Surgery was performed 2-4 weeks after completion of CIRT. Results: Twenty-eight patients were enrolled on study. Twenty-five patients are eligible for this analysis. Five patients were treated at each of dose levels 1-2. Three patients were at dose level 3. Six patients were at each of dose levels 4-5. Twenty-one patients (84%) underwent resection. Reasons for no resections were: metastatic disease-3 and refusal-1 those were at dose levels 1-2. Although grade 3/4 toxicities were noted in 2 patients (liver abscess-1, PV thrombus-1), both of them were unrelated directly to CIRT. Median follow-up time is 13.9 months (range, 3.2-73.1). There has been no local failure in postoperative patients. Metastatic failure has occurred in 17 out of 25 patients (68%). Five-year survival rates in all patients and postoperative patients are 39% and 48%, respectively. Conclusions: Short course preoperative CIRT seems to be a safe and effective modality in the management of resectable pancreatic cancer, providing satisfactory local control and offering a survival advantage without unacceptable morbidity. |
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会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | ASTRO 53rd Annual Meeting | |||||
発表年月日 | ||||||
日付 | 2011-10-06 | |||||
日付タイプ | Issued |