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Efficacy and safety of chemotherapy combined with iodine-125 seed brachytherapy for intermediate and advanced oncogenic driver gene-negative non-small cell lung cancer 化疗联合碘125粒子近距离放疗治疗中晚期癌性驱动基因阴性非小细胞肺癌的疗效和安全性。
IF 1.7 4区 医学 Q4 ONCOLOGY Pub Date : 2025-01-01 DOI: 10.1016/j.brachy.2024.09.005
Meng-hua xia , Kai-cai Liu , Wei Zhao , Yi-zhuang Cheng , Liang-ping Shi , Li-qin Bi , Xue-ran Guo , Meng-xia Zhang , Wei-Fu Lv

PURPOSE

To compare the effectiveness and safety of CT-guided iodine-125 seed brachytherapy in conjunction with chemotherapy against chemotherapy alone for the management of intermediate and advanced non-small cell lung cancer (NSCLC) lacking oncogenic driving genes.

METHODS AND MATERIALS

Retrospective analysis was conducted on clinical data from 128 patients diagnosed with intermediate and advanced non-small cell lung cancer who received iodine-125 combined with chemotherapy or chemotherapy alone due to the absence of oncogenic driver gene mutations. The patients in two groups were compared at 6-month follow-up for objective remission rate (ORR), Disease control rate (DCR), local progression−free survival (LPFS), overall survival (OS), clinical symptom improvement, and adverse events.

RESULTS

A median of 47 (range, 16–100) iodine-125 seeds were implanted. The median D90 was 139.4 Gy. In patients with stage III NSCLC, the 6-month ORR were 40.0% and 8.0% in two groups, while those with stage IV NSCLC had rates of 20.9% and 4.0%. No significant issues arose during the 5–58 months follow-up period. OS did not significantly differ between stage III and IV NSCLC patients. The LPFS for stage III patients was 14 months and 9 months, compared to 8 months and 7 months for stage IV patients. Symptom improvement rates, including cough, chest discomfort, hemoptysis, and chest constriction, were 87.2% versus 20.4%, 77.8% versus 33.3%, and 77.8% versus 26.1%, respectively.

CONCLUSIONS

CT-guided iodine-125 seed implantation with chemotherapy failed to improve OS in stages III and IV NSCLC. However, it did extend the LPFS of stage III NSCLC. Furthermore, the ORR was much higher than that of the chemotherapy-only group, and lung cancer clinical symptoms were significantly reduced, improving patient quality of life.
目的:比较ct引导下碘125粒子近距离放疗联合化疗与单纯化疗治疗缺乏致癌驱动基因的中晚期非小细胞肺癌(NSCLC)的有效性和安全性。方法与材料:回顾性分析128例诊断为中晚期非小细胞肺癌的患者的临床资料,这些患者因缺乏致癌驱动基因突变而接受碘-125联合化疗或单独化疗。在6个月的随访中,比较两组患者的客观缓解率(ORR)、疾病控制率(DCR)、局部无进展生存期(LPFS)、总生存期(OS)、临床症状改善和不良事件。结果:平均植入碘125种子47粒(范围16 ~ 100粒)。中位D90为139.4 Gy。在III期NSCLC患者中,两组患者的6个月ORR分别为40.0%和8.0%,而IV期NSCLC患者的ORR分别为20.9%和4.0%。5-58个月随访期间未出现重大问题。III期和IV期NSCLC患者的OS无显著差异。III期患者的LPFS为14个月和9个月,而IV期患者的LPFS为8个月和7个月。症状改善率,包括咳嗽、胸部不适、咯血和胸缩,分别为87.2%对20.4%、77.8%对33.3%、77.8%对26.1%。结论:ct引导下碘125粒子植入化疗不能改善III期和IV期NSCLC的OS。然而,它确实延长了III期NSCLC的LPFS。此外,ORR远高于单纯化疗组,肺癌临床症状明显减轻,患者生活质量得到改善。
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引用次数: 0
Biochemical outcome of prostate cancer patients treated with hypofractionated external radiation and a single high-dose-rate brachytherapy boost 前列腺癌患者接受低分次外部放射治疗和单次高剂量率近距离放射治疗后的生化结果。
IF 1.7 4区 医学 Q4 ONCOLOGY Pub Date : 2025-01-01 DOI: 10.1016/j.brachy.2024.07.005
Johan Staby Olsén , Antonios Valachis , Leif Karlsson PhLic , Bengt Johansson

INTRODUCTION

Treating localized high-risk prostate cancer with a combination of external beam radiation therapy (EBRT) and high-dose-rate brachytherapy (HDR-BT) is a common approach. Moderately hypofractionated EBRT and a single HDR-BT boost simplifies the treatment. We aim to present our five-year results.

METHODS

In this study, 355 patients treated with moderately hypofractionated EBRT (42 Gy in 14 fractions) and a single HDR-BT boost (14.5 Gy) at Örebro University Hospital between 2008 and 2018 were included. They were followed with regular PSA tests.

RESULTS

The median age of the cohort was 70 years (range: 51–81) and the median follow-up duration was 56 months (range: 6–150). Among them, 45% were classified as very high-risk, 38% as high-risk and 17% as intermediate-risk. Adjuvant androgen deprivation therapy (ADT) with a median duration of 24 months was given to 75% of the patient cohort. The estimated 5-year failure free survival rates were 79% (whole cohort), 66% (very high-risk), 90% (high-risk) and 85% (intermediate-risk), respectively. Initial PSA > 10 ng/mL, Gleason score 9–10 and tumor stage T3 were significantly associated with biochemical failure (BF). A PSA bounce occurred in 53 (15%) cases and was inversely associated with BF (p = 0.001) for patients receiving ADT.

CONCLUSIONS

Moderately hypofractionated EBRT and a single HDR-BT boost seems to be an effective treatment against intermediate- and high-risk localized prostate cancer. Treatment escalation strategies should be investigated for very high-risk patients where the risk of recurrence remains high.
简介:采用体外放射治疗(EBRT)和高剂量率近距离放射治疗(HDR-BT)联合治疗局部高危前列腺癌是一种常见的方法。适度低分次的 EBRT 和单次 HDR-BT 增强治疗简化了治疗过程。我们旨在介绍五年来的研究结果:在这项研究中,我们纳入了 2008 年至 2018 年期间在厄勒布鲁大学医院接受适度低剂量 EBRT(42 Gy,14 次分割)和单次 HDR-BT 增强(14.5 Gy)治疗的 355 名患者。他们定期接受 PSA 检测:组群的中位年龄为70岁(范围:51-81岁),中位随访时间为56个月(范围:6-150个月)。其中,45%被列为极高风险,38%为高风险,17%为中风险。75%的患者接受了中位持续时间为24个月的雄激素剥夺辅助治疗(ADT)。估计的5年无失败生存率分别为79%(全组)、66%(极高危)、90%(高危)和85%(中危)。初始 PSA > 10 ng/mL、Gleason 评分 9-10 和肿瘤分期 T3 与生化失败(BF)显著相关。53例(15%)患者出现PSA反弹,接受ADT治疗的患者的PSA反弹与BF呈反比关系(p = 0.001):结论:适度低分次的EBRT和单次HDR-BT增强似乎是治疗中、高危局部前列腺癌的有效方法。对于复发风险仍然很高的极高危患者,应研究治疗升级策略。
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引用次数: 0
Salvage interstitial brachytherapy for treatment of recurrent endometrial cancers in the vagina: Seven-year single institution experience and review of second recurrence patterns 用于治疗阴道复发性子宫内膜癌的挽救性间质近距离放射治疗:七年单一机构经验及二次复发模式回顾。
IF 1.7 4区 医学 Q4 ONCOLOGY Pub Date : 2025-01-01 DOI: 10.1016/j.brachy.2024.09.007
Marissa Sherwood , Toni Barnes , Hanbo Chen , Amandeep Taggar , Moti Paudel , Liying Zhang , Aishah Alqaderi , Eric Leung

INTRODUCTION

Interstitial brachytherapy (ISBT) is a known treatment for vaginal recurrence of endometrial cancer. This study reviews a large tertiary institution's ISBT experience and outcomes for vaginal recurrences.

MATERIAL AND METHODS

Patients who underwent salvage ISBT for vaginal recurrence of endometrial cancer from January 1, 2014 to August 31, 2021, were identified. Initial and salvage disease factors and treatments were recorded. Outcomes were calculated including overall survival, local, and distant failure.

RESULTS

Thirty-nine patients were included; thirty received external beam radiotherapy and interstitial brachytherapy (EBRT + ISBT) while 9 received ISBT alone. At initial diagnosis, the ISBT alone group had an older median age, with stage IA-IV disease, frequently receiving adjuvant treatment, compared to the EBRT with ISBT group with mainly stage IA disease who did not. Median follow up was 22 months and median time to recurrence 14 months (16.5 months in EBRT + ISBT group and 14 in the ISBT alone group). Two-year overall survival was 85% for all patients, 85.6% and 83.3%in the EBRT + ISBT and ISBT alone groups, respectively. Local failure was 22.7% for all patients, 16.7% in the EBRT + ISBT group and 11.1% in the ISBT alone group. Median HRCTV D90 (EQD2) was 76.8 Gy in the EBRT + ISBT group, and 57.9 Gy in the ISBT alone group. Late grade 3 or higher toxicity occurred in only 3 patients.

CONCLUSIONS

EBRT + ISBT is an effective treatment for endometrial cancer vaginal recurrence, with acceptable toxicity. ISBT alone is an option for patients with contraindications to or with previous treatment of pelvic radiation.
简介间质近距离放射治疗(ISBT)是一种已知的治疗子宫内膜癌阴道复发的方法。本研究回顾了一家大型三级医疗机构在阴道复发方面的 ISBT 经验和结果:研究对象为2014年1月1日至2021年8月31日期间因子宫内膜癌阴道复发而接受ISBT挽救治疗的患者。记录初始和挽救性疾病因素及治疗方法。结果包括总生存期、局部和远处失败:共纳入 39 例患者,其中 30 例接受了体外放射治疗和间质近距离放射治疗(EBRT + ISBT),9 例仅接受了 ISBT。初诊时,单纯ISBT组患者的中位年龄较大,疾病处于IA-IV期,经常接受辅助治疗,而EBRT+ISBT组患者主要处于IA期,没有接受辅助治疗。中位随访时间为 22 个月,中位复发时间为 14 个月(EBRT + ISBT 组为 16.5 个月,单用 ISBT 组为 14 个月)。所有患者的两年总生存率为 85%,EBRT + ISBT 组和单纯 ISBT 组分别为 85.6% 和 83.3%。所有患者的局部失败率为 22.7%,EBRT + ISBT 组为 16.7%,单纯 ISBT 组为 11.1%。EBRT+ISBT组的中位HRCTV D90(EQD2)为76.8 Gy,单纯ISBT组为57.9 Gy。仅有3名患者出现了3级或3级以上的晚期毒性:结论:EBRT + ISBT 是治疗子宫内膜癌阴道复发的有效方法,毒性可接受。对于有盆腔放疗禁忌症或既往接受过盆腔放疗的患者,可选择单独使用 ISBT。
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引用次数: 0
Long-term disease-free survival and health-related quality of life results of high-dose-rate brachytherapy as monotherapy for low and intermediate-risk prostate cancer treated in a community cancer center 高剂量率近距离放射治疗作为社区癌症中心治疗低危和中危前列腺癌的单一疗法的长期无病生存率和与健康相关的生活质量结果。
IF 1.7 4区 医学 Q4 ONCOLOGY Pub Date : 2025-01-01 DOI: 10.1016/j.brachy.2024.10.004
Raphael William , Pierre-Yves McLaughlin , Mathieu Pharand-Charbonneau , Debbie Smith Wright , Alain Haddad , Marc Gaudet

PURPOSE

To determine the long-term disease-free survival, long-term toxicity, and effect on health-related quality of life of a two-fraction regimen of high-dose-rate (HDR) prostate brachytherapy.

METHODS AND MATERIALS

Patients with low- or intermediate-risk prostate cancer were treated with CT-planned HDR brachytherapy as monotherapy in two implants of 13.5 Gy in one community cancer center. Prostate-specific antigen (PSA), International Prostate Symptom Score (IPSS) and Expanded Prostate Index Composite (EPIC) questionnaires were evaluated at each follow-up visit. Biochemical recurrence (Phoenix definition) was evaluated to determine disease-free survival at 5 and 7 years. Proportion of patients in each IPSS category (mild = 0–7, moderate = 8–18, severe = 19+) was evaluated at each follow-up interval.

RESULTS

Thirty patients were accrued to the study between 2014 and 2016. Median prostate-specific antigen was 8,7 (range 4.1–17.5). T stages were T1c = 65%, T2a = 21%, and T2b = 14%. Twenty-seven percent of patients had a Gleason score of 6 and 73% had a Gleason score of 7. 13% were in low risk category and 87% in intermediate risk category. Median follow-up was 84 months. There were no deaths at 84 months after brachytherapy. Disease-free survival was 90% at 5 years and 86% at 7 years. Two patients experienced late Grade 3 GU toxicity (6.6%).

CONCLUSIONS

This study serves as proof of concept that HDR monotherapy can be performed successfully with excellent long-term outcomes in a community cancer center with adequate training and experience. The long-term disease-free survival rate and the health-related quality of life seem acceptable as compared to other treatment modalities. Further study is ongoing with regard to the optimal dosing regimen for HDR monotherapy.
目的:确定高剂量率(HDR)前列腺近距离放射治疗的长期无病生存率、长期毒性以及对健康相关生活质量的影响:在一家社区癌症中心,低危或中危前列腺癌患者接受了CT计划的HDR近距离放射治疗,作为单一疗法,分两次植入13.5 Gy。每次随访时都会对前列腺特异性抗原(PSA)、国际前列腺症状评分(IPSS)和前列腺指数综合指数(EPIC)问卷进行评估。对生化复发(凤凰定义)进行评估,以确定5年和7年的无病生存率。在每个随访间隔期评估每个 IPSS 类别(轻度 = 0-7、中度 = 8-18、重度 = 19+)的患者比例:2014年至2016年期间,共有30名患者参与研究。前列腺特异性抗原中位数为8.7(范围4.1-17.5)。T分期为T1c=65%,T2a=21%,T2b=14%。27%的患者格里森评分为6分,73%的患者格里森评分为7分。中位随访时间为 84 个月。近距离放射治疗后 84 个月内无死亡病例。5年无病生存率为90%,7年无病生存率为86%。两名患者出现了晚期3级GU毒性(6.6%):这项研究证明了一个概念,即在受过充分培训并拥有丰富经验的社区癌症中心,可以成功实施 HDR 单一疗法,并取得良好的长期疗效。与其他治疗方式相比,长期无病生存率和与健康相关的生活质量似乎是可以接受的。有关 HDR 单一疗法最佳剂量方案的进一步研究仍在进行中。
{"title":"Long-term disease-free survival and health-related quality of life results of high-dose-rate brachytherapy as monotherapy for low and intermediate-risk prostate cancer treated in a community cancer center","authors":"Raphael William ,&nbsp;Pierre-Yves McLaughlin ,&nbsp;Mathieu Pharand-Charbonneau ,&nbsp;Debbie Smith Wright ,&nbsp;Alain Haddad ,&nbsp;Marc Gaudet","doi":"10.1016/j.brachy.2024.10.004","DOIUrl":"10.1016/j.brachy.2024.10.004","url":null,"abstract":"<div><h3>PURPOSE</h3><div>To determine the long-term disease-free survival, long-term toxicity, and effect on health-related quality of life of a two-fraction regimen of high-dose-rate (HDR) prostate brachytherapy.</div></div><div><h3>METHODS AND MATERIALS</h3><div>Patients with low- or intermediate-risk prostate cancer were treated with CT-planned HDR brachytherapy as monotherapy in two implants of 13.5 Gy in one community cancer center. Prostate-specific antigen (PSA), International Prostate Symptom Score (IPSS) and Expanded Prostate Index Composite (EPIC) questionnaires were evaluated at each follow-up visit. Biochemical recurrence (Phoenix definition) was evaluated to determine disease-free survival at 5 and 7 years. Proportion of patients in each IPSS category (mild = 0–7, moderate = 8–18, severe = 19+) was evaluated at each follow-up interval.</div></div><div><h3>RESULTS</h3><div>Thirty patients were accrued to the study between 2014 and 2016. Median prostate-specific antigen was 8,7 (range 4.1–17.5). T stages were T1c = 65%, T2a = 21%, and T2b = 14%. Twenty-seven percent of patients had a Gleason score of 6 and 73% had a Gleason score of 7. 13% were in low risk category and 87% in intermediate risk category. Median follow-up was 84 months. There were no deaths at 84 months after brachytherapy. Disease-free survival was 90% at 5 years and 86% at 7 years. Two patients experienced late Grade 3 GU toxicity (6.6%).</div></div><div><h3>CONCLUSIONS</h3><div>This study serves as proof of concept that HDR monotherapy can be performed successfully with excellent long-term outcomes in a community cancer center with adequate training and experience. The long-term disease-free survival rate and the health-related quality of life seem acceptable as compared to other treatment modalities. Further study is ongoing with regard to the optimal dosing regimen for HDR monotherapy.</div></div>","PeriodicalId":55334,"journal":{"name":"Brachytherapy","volume":"24 1","pages":"Pages 54-61"},"PeriodicalIF":1.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142640453","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
Dosimetric evaluation of adaptive planning for five-fraction gynecologic template-based interstitial brachytherapy 对基于妇科模板的五分段间质近距离放射治疗的自适应规划进行剂量学评估。
IF 1.7 4区 医学 Q4 ONCOLOGY Pub Date : 2024-11-01 DOI: 10.1016/j.brachy.2024.07.007
Steven Blum , Jessica R. Miller , Kristin A. Bradley , Bethany Anderson , Hari Menon , Bradley Eckelmann , Charles Wallace , Abby Besemer , Michael Lawless , Jordan M. Slagowski

PURPOSE

The purpose of this work was to evaluate whether inter-fraction imaging and replanning enhance treatment delivery adherence to clinical planning objectives in the context of a 5-fraction template-based interstitial brachytherapy (TISB) approach for gynecologic cancer treatment.

METHODS AND MATERIALS

This retrospective study analyzed nineteen patients who underwent 5 fractions of interstitial brachytherapy over 3 days using the Syed–Neblett template. A verification CT scan was acquired for applicator assessment and reviewed by a radiation oncologist and medical physicist before each fraction. Eleven patients required replanning at least once during the treatment course. Replanning on the verification CT scan consisted of generating new target and organ-at-risk contours, digitizing catheter positions, and optimizing source dwell times to meet planning objectives. Dwell times and positions from the initial treatment plan were evaluated on the new contours to assess the dose that would have been delivered without replanning (nonadapted). Significance of nonadapted versus adapted dose differences were evaluated using a 2-sided Wilcoxon sum rank test.

RESULTS

The average (min, max) change in dose (Gy) between the clinically delivered plans and the nonadapted plans were HR-CTV D90%: −6.5 (−0.6, −15.1), HR-CTV D98%: −6.5 (−0.4, −12.6), Bladder D2cc: −0.5 (0.0, −2.8), Bowel D2cc: −0.8 (0.0, −3.2), Rectum D2cc: −1.1 (0.0, −11.5), Sigmoid D2cc: −1.4 (−0.1, −5.4). Dosimetric changes in HR-CTV coverage were significantly improved with replanning while organ-at-risk differences were nonsignificant (p > 0.05). Fraction 3 was the most common fraction indicated for replanning.

CONCLUSIONS

Replanning template-based interstitial brachytherapy can improve target coverage and adherence to planning goals.
目的:这项研究的目的是评估在采用基于模板的5个分段间质近距离放射治疗(TISB)方法治疗妇科癌症时,分段间成像和重新规划是否能提高治疗效果,使其更符合临床计划目标:这项回顾性研究分析了19名患者,他们在3天内使用Syed-Neblett模板接受了5次间质近距离放射治疗。每次分次治疗前,放射肿瘤学家和医学物理学家都会对患者进行CT扫描验证,以评估施术者的情况。有 11 名患者在治疗过程中至少需要重新扫描一次。对验证 CT 扫描的重新扫描包括生成新的目标和危险器官轮廓、数字化导管位置以及优化放射源停留时间,以达到计划目标。在新轮廓上评估初始治疗计划中的停留时间和位置,以评估未重新规划(非适应)情况下的剂量。使用双侧 Wilcoxon 和秩检验来评估非适应与适应剂量差异的显著性:临床实施计划与非适应计划之间的平均(最小,最大)剂量变化(Gy)为 HR-CTV D90%:-6.5(-0.6,-15.1),HR-CTV D98%:-膀胱 D2cc:-0.5(0.0,-2.8),肠 D2cc:-0.8(0.0,-3.2),直肠 D2cc:-1.1(0.0,-11.5),乙状结肠 D2cc:-1.4(-0.1,-5.4)。重新扫描后,HR-CTV 覆盖范围的剂量学变化明显改善,而风险器官的差异不显著(P > 0.05)。3号分段是最常见的重新扫描分段:结论:重新规划基于模板的间质近距离放射治疗可提高靶点覆盖率,并更好地实现规划目标。
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引用次数: 0
Gynecological brachytherapy hybrid training: The Tata Memorial Centre and BrachyAcademy experience 妇科近距离治疗混合培训:塔塔纪念中心和 BrachyAcademy 的经验。
IF 1.7 4区 医学 Q4 ONCOLOGY Pub Date : 2024-11-01 DOI: 10.1016/j.brachy.2024.07.002
Elena Dizendorf , Supriya Chopra , Prachi Mittal , Ankita Gupta , Remi Nout , Alina Sturdza , Cyrus Chargari , Kari Tanderup , Ekkasit Tharavichitkul , Hamza Tatli , Meenakshi Jeeva , Jeevanshu Jain , Subhajit Panda , Ritu Raj Upreti , Yogesh Ghadi , Akshay Bhavke , Satish Kohle , Rajesh Bhajbhuje , Jai Prakash Agarwal

PURPOSE

The lack of training is a significant barrier to practicing brachytherapy (BT). Tata Memorial Centre, alongside international BT experts and BrachyAcademy, developed a hybrid gynecological BT training module. This study outlines the preparation, organization, and execution of the 2022–2023 Mumbai training, evaluates its effectiveness, and highlights areas for improvement.

MATERIALS AND METHODS

Participants were radiation oncologists (RO) and medical physicists (MP) with experience in gynecological BT aiming to transition to image-guided brachytherapy (IGBT). The training covered cervical, endometrial, vaginal, vulvar, periurethral cancers, and pelvic reirradiation. The hybrid course included online pre and postcourse homework assignments, a live workshop with hands-on training, a 6-month online follow-up, and a 12-month opportunity to share the transition experience.

RESULTS

The December 2022 Mumbai live workshop spanned 2.5 days, attracting 39 participants from 8 countries (Asia, Africa, Australia/Oceania). Feedback rated the course 9/10, with 78% fully meeting expectations. Forty-four percent suggested extending hands-on training. At the 6-month follow-up, response rates were low (33% RO, 11% MP). Among responding RO, 70% reported practice changes after attending the course, 40% implemented IGBT concepts in clinical practice, and 50% increased confidence in image-guided procedures. Overall, 45% of respondent sites could strengthen their intracavitary/interstitial program, while others faced limitations due to lack of access to advanced BT applicators.

CONCLUSION

The hybrid gynecological BT training concept was successfully executed. Areas for improvement include extending hands-on training and enhancing participant engagement postcourse. Structured steps beyond training may be needed to improve the utilization of advanced brachytherapy for gynecological cancers.
目的:缺乏培训是从事近距离放射治疗(BT)的一大障碍。塔塔纪念中心与国际近距离放射治疗专家和BrachyAcademy共同开发了妇科近距离放射治疗混合培训模块。本研究概述了 2022-2023 年孟买培训的筹备、组织和实施情况,评估了培训效果,并强调了需要改进的地方:参加培训的人员是放射肿瘤学家(RO)和医学物理学家(MP),他们在妇科近距离放射治疗(BT)方面具有丰富的经验,目标是过渡到图像引导近距离放射治疗(IGBT)。培训内容包括宫颈癌、子宫内膜癌、阴道癌、外阴癌、尿道周围癌和盆腔再放射。混合课程包括在线课前和课后作业、现场研讨会与实践培训、为期6个月的在线随访以及为期12个月的分享过渡经验的机会:2022 年 12 月在孟买举办的现场研讨会为期 2.5 天,吸引了来自 8 个国家(亚洲、非洲、澳大利亚/大洋洲)的 39 名学员参加。反馈意见对课程的评分为 9/10,78% 完全符合预期。44%的学员建议延长实践培训时间。在 6 个月的跟踪调查中,答复率较低(33% 的区域办事处,11% 的 MP)。在答复的区域办事处中,70% 的办事处表示在参加课程后改变了做法,40% 的办事处在临床实践中实施了 IGBT 概念,50% 的办事处增强了对图像引导程序的信心。总体而言,45%的受访医疗机构可以加强其腔内/间质治疗项目,而其他医疗机构则因无法获得先进的 BT 应用器械而面临限制:结论:混合妇科 BT 培训概念已成功实施。需要改进的方面包括扩大实践培训和加强学员课后参与。除了培训之外,可能还需要采取结构化措施,以提高先进近距离放射治疗妇科癌症的利用率。
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引用次数: 0
GF479-Elsevier-www.theclinics.com-Our Issues Can Help You Manage…-BW GF479-Elsevier-www.theclinics.com-Our 问题可以帮助您管理...-BW
IF 1.7 4区 医学 Q4 ONCOLOGY Pub Date : 2024-11-01 DOI: 10.1016/S1538-4721(24)00435-5
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引用次数: 0
Surgically targeted radiation therapy versus stereotactic radiation therapy: A dosimetric comparison for brain metastasis resection cavities 手术靶向放射治疗与立体定向放射治疗:脑转移瘤切除腔的剂量比较。
IF 1.7 4区 医学 Q4 ONCOLOGY Pub Date : 2024-11-01 DOI: 10.1016/j.brachy.2024.06.007
Tugce Kutuk , Rupesh Kotecha , Roberto Herrera , D Jay J. Wieczorek , Zachary W. Fellows , Vibha Chaswal , Alonso La Rosa , Vivek Mishra , Michael W. McDermott , Vitaly Siomin , Minesh P. Mehta , Alonso N. Gutierrez , Ranjini Tolakanahalli

PURPOSE

Surgically targeted radiation therapy (STaRT) with Cesium-131 seeds embedded in a collagen tile is a promising treatment for recurrent brain metastasis. In this study, the biological effective doses (BED) for normal and target tissues from STaRT plans were compared with those of external beam radiotherapy (EBRT) modalities.

METHODS

Nine patients (n = 9) with 12 resection cavities (RCs) who underwent STaRT (cumulative physical dose of 60 Gy to a depth of 5 mm from the RC edge) were replanned with CyberKnife (CK), Gamma Knife (GK), and intensity modulated proton therapy (IMPT) using an SRT approach (30 Gy in 5 fractions). Statistical significance comparing D95% and D90% in BED10Gy (BED10Gy95% and BED10Gy90%) and to RC + 0 to + 5 mm expansion margins, and parameters associated with radiation necrosis risk (V83Gy, V103Gy, V123Gy and V243Gy) to the normal brain were evaluated by a Wilcoxon-signed rank test.

RESULTS

For RC + 0 mm, median BED10Gy 90% for STaRT (90.1 Gy10, range: 64.1–140.9 Gy10) was significantly higher than CK (74.3 Gy10, range:59.3–80.4 Gy10, p = 0.04), GK (69.4 Gy10, range: 59.8–77.1 Gy10, p = 0.005), and IMPT (49.3 Gy10, range: 49.0–49.7 Gy10, p = 0.003), respectively. However, for the RC + 5 mm, the median BED10Gy 90% for STaRT (34.1 Gy10, range: 22.2–59.7 Gy10) was significantly lower than CK (44.3 Gy10, range: 37.8–52.4 Gy10), and IMPT (46.6 Gy10, range: 45.1–48.5 Gy10), respectively, but not significantly different from GK (34.1 Gy10, range: 22.8–47.0 Gy10). The median V243Gy was significantly higher in CK (11.7 cc, range: 4.7–20.1 cc), GK(6.2 cc, range: 2.3–11.9 cc) and IMPT (19.9 cc, range: 11.1–36.6 cc) compared to STaRT (1.1 cc, range: 0.0–7.8 cc) (p < 0.01).

CONCLUSIONS

This comparative analysis suggests a STaRT approach may treat recurrent brain tumors effectively via delivery of higher radiation doses with equivalent or greater BED up to at least 3 mm from the RC edge as compared to EBRT approaches.
目的:将铯-131种子嵌入胶原瓦中进行手术靶向放射治疗(STaRT)是一种治疗复发性脑转移瘤的有效方法。本研究将 STaRT 计划对正常组织和靶组织的生物有效剂量(BED)与外照射放疗(EBRT)模式进行了比较:九名患者(n = 9)有 12 个切除腔(RC),他们接受了 STaRT(RC 边缘 5 mm 深度的累积物理剂量为 60 Gy),并使用 CyberKnifeⓇ (CK)、伽玛刀Ⓡ (GK) 和强度调制质子疗法 (IMPT) 进行了 SRT 方法(30 Gy,分 5 次进行)的重新计划。BED10Gy的D95%和D90%(BED10Gy95%和BED10Gy90%)与RC + 0至+ 5 mm扩展边缘的统计意义,以及与正常脑放射坏死风险相关的参数(V83Gy、V103Gy、V123Gy和V243Gy),均通过Wilcoxon-signed秩检验进行评估:对于 RC + 0 mm,START 的中位 BED10Gy 90%(90.1 Gy10,范围:64.1-140.9 Gy10)明显高于 CK(74.3 Gy10,范围:59.3-80.4 Gy10,p = 0.04)、GK(69.4 Gy10,范围:59.8-77.1 Gy10,p = 0.005)和 IMPT(49.3 Gy10,范围:49.0-49.7 Gy10,p = 0.003)。然而,对于 RC + 5 mm,STaRT 的中位 BED10Gy 90%(34.1 Gy10,范围:22.2-59.7 Gy10)分别显著低于 CK(44.3 Gy10,范围:37.8-52.4 Gy10)和 IMPT(46.6 Gy10,范围:45.1-48.5 Gy10),但与 GK(34.1 Gy10,范围:22.8-47.0 Gy10)无显著差异。与 STaRT(1.1 cc,范围:0.0-7.8 cc)相比,CK(11.7 cc,范围:4.7-20.1 cc)、GK(6.2 cc,范围:2.3-11.9 cc)和 IMPT(19.9 cc,范围:11.1-36.6 cc)的中位 V243Gy 明显更高(P < 0.01):这项对比分析表明,与 EBRT 方法相比,STaRT 方法可以通过在距离 RC 边缘至少 3 mm 的范围内提供更高的放射剂量和等效或更高的 BED 来有效治疗复发性脑肿瘤。
{"title":"Surgically targeted radiation therapy versus stereotactic radiation therapy: A dosimetric comparison for brain metastasis resection cavities","authors":"Tugce Kutuk ,&nbsp;Rupesh Kotecha ,&nbsp;Roberto Herrera ,&nbsp;D Jay J. Wieczorek ,&nbsp;Zachary W. Fellows ,&nbsp;Vibha Chaswal ,&nbsp;Alonso La Rosa ,&nbsp;Vivek Mishra ,&nbsp;Michael W. McDermott ,&nbsp;Vitaly Siomin ,&nbsp;Minesh P. Mehta ,&nbsp;Alonso N. Gutierrez ,&nbsp;Ranjini Tolakanahalli","doi":"10.1016/j.brachy.2024.06.007","DOIUrl":"10.1016/j.brachy.2024.06.007","url":null,"abstract":"<div><h3>PURPOSE</h3><div>Surgically targeted radiation therapy (STaRT) with Cesium-131 seeds embedded in a collagen tile is a promising treatment for recurrent brain metastasis. In this study, the biological effective doses (BED) for normal and target tissues from STaRT plans were compared with those of external beam radiotherapy (EBRT) modalities.</div></div><div><h3>METHODS</h3><div>Nine patients (n = 9) with 12 resection cavities (RCs) who underwent STaRT (cumulative physical dose of 60 Gy to a depth of 5 mm from the RC edge) were replanned with CyberKnife<sup>Ⓡ</sup> (CK), Gamma Knife<sup>Ⓡ</sup> (GK), and intensity modulated proton therapy (IMPT) using an SRT approach (30 Gy in 5 fractions). Statistical significance comparing D95% and D90% in BED<sub>10Gy</sub> (BED<sub>10Gy</sub>95% and BED<sub>10Gy</sub>90%) and to RC + 0 to + 5 mm expansion margins, and parameters associated with radiation necrosis risk (V8<sub>3Gy</sub>, V10<sub>3Gy</sub>, V12<sub>3Gy</sub> and V24<sub>3Gy</sub>) to the normal brain were evaluated by a Wilcoxon-signed rank test.</div></div><div><h3>RESULTS</h3><div>For RC + 0 mm, median BED<sub>10Gy</sub> 90% for STaRT (90.1 Gy<sub>10</sub>, range: 64.1–140.9 Gy<sub>10</sub>) was significantly higher than CK (74.3 Gy<sub>10</sub>, range:59.3–80.4 Gy<sub>10</sub>, <em>p =</em> 0.04), GK (69.4 Gy<sub>10</sub>, range: 59.8–77.1 Gy<sub>10</sub>, <em>p =</em> 0.005), and IMPT (49.3 Gy<sub>10</sub>, range: 49.0–49.7 Gy<sub>10</sub>, <em>p =</em> 0.003), respectively. However, for the RC + 5 mm, the median BED<sub>10Gy</sub> 90% for STaRT (34.1 Gy<sub>10</sub>, range: 22.2–59.7 Gy<sub>10</sub>) was significantly lower than CK (44.3 Gy<sub>10</sub>, range: 37.8–52.4 Gy<sub>10</sub>), and IMPT (46.6 Gy<sub>10</sub>, range: 45.1–48.5 Gy<sub>10</sub>), respectively, but not significantly different from GK (34.1 Gy<sub>10</sub>, range: 22.8–47.0 Gy<sub>10</sub>). The median V24<sub>3Gy</sub> was significantly higher in CK (11.7 cc, range: 4.7–20.1 cc), GK(6.2 cc, range: 2.3–11.9 cc) and IMPT (19.9 cc, range: 11.1–36.6 cc) compared to STaRT (1.1 cc, range: 0.0–7.8 cc) (<em>p</em> &lt; 0.01).</div></div><div><h3>CONCLUSIONS</h3><div>This comparative analysis suggests a STaRT approach may treat recurrent brain tumors effectively via delivery of higher radiation doses with equivalent or greater BED up to at least 3 mm from the RC edge as compared to EBRT approaches.</div></div>","PeriodicalId":55334,"journal":{"name":"Brachytherapy","volume":"23 6","pages":"Pages 751-760"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141891275","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
Mortality and postinterventional complications after ablative treatment of liver malignancies: A cohort study of 4374 patients 肝脏恶性肿瘤消融治疗后的死亡率和介入治疗后并发症:4374 例患者的队列研究。
IF 1.7 4区 医学 Q4 ONCOLOGY Pub Date : 2024-11-01 DOI: 10.1016/j.brachy.2024.07.001
Christine March , Maximilian Thormann , Peter Hass , Marilena Georgiades , Maximilian Sensse , Tim Herrmann , Jazan Omari , Maciej Pech , Robert Damm

PURPOSE

Ablative therapies for primary and secondary liver malignancies are increasingly adopted in current guidelines. Nevertheless, surgical resection remains the gold standard in most curative therapy settings.
Extensive studies on mortality and morbidity after ablative treatment of the liver are missing. We investigated complications and mortality after ablative treatment in a large, unselected study cohort.

MATERIALS AND METHODS

Standardized patient and treatment data in 4374 percutaneous and angiographic ablative procedures of the liver from the DRG-based hospital reimbursement system (diagnosis-related groups) of an academic hospital in Germany were retrospectively evaluated. We analyzed descriptive patient data, length of stay (LOS), pre-existing medical conditions, previous gastrointestinal surgeries, severe complications, and occurrence of death.

RESULTS

Treatment of secondary liver malignancies constituted over two-thirds of all procedures (71%, n = 3053). The mean LOS was 4.1 ± 3.5 days. Severe complications were documented in 1.4% and in-house death in 0.2% of cases, significantly more often after treatment with chemoembolization of primary liver malignancies (p = 0.003; p = 0.0001).
Previous partial liver resection, partial bowel resection, and chronic renal failure were independent risk factors for the occurrence of severe complications.

CONCLUSION

Severe complications and in-hospital death are rare in the treatment of primary and secondary liver malignancies with percutaneous and angiographic procedures.
They are a viable alternative or addition to a surgical approach in treating liver lesions.
目的:目前的指南越来越多地采用烧蚀疗法治疗原发性和继发性肝脏恶性肿瘤。然而,手术切除仍是大多数治愈性治疗的金标准。有关肝脏消融治疗后死亡率和发病率的广泛研究尚属空白。我们在一个未经选择的大型研究队列中调查了消融治疗后的并发症和死亡率:我们对德国一家学术医院基于 DRG 的医院报销系统(诊断相关组)中 4374 例经皮和血管造影肝脏消融术的标准化患者和治疗数据进行了回顾性评估。我们分析了患者的描述性数据、住院时间(LOS)、既往病史、既往胃肠道手术、严重并发症和死亡情况:继发性肝脏恶性肿瘤的治疗占所有手术的三分之二以上(71%,n = 3053)。平均住院日为 4.1 ± 3.5 天。有记录显示,1.4%的病例出现严重并发症,0.2%的病例出现内部死亡,原发性肝脏恶性肿瘤化疗栓塞治疗后出现严重并发症的病例明显增多(p = 0.003; p = 0.0001)。曾进行肝部分切除术、肠部分切除术和慢性肾功能衰竭是发生严重并发症的独立危险因素:结论:采用经皮和血管造影术治疗原发性和继发性肝脏恶性肿瘤时,很少出现严重并发症和院内死亡。在治疗肝脏病变时,经皮和血管造影术是一种可行的替代或补充手术方法。
{"title":"Mortality and postinterventional complications after ablative treatment of liver malignancies: A cohort study of 4374 patients","authors":"Christine March ,&nbsp;Maximilian Thormann ,&nbsp;Peter Hass ,&nbsp;Marilena Georgiades ,&nbsp;Maximilian Sensse ,&nbsp;Tim Herrmann ,&nbsp;Jazan Omari ,&nbsp;Maciej Pech ,&nbsp;Robert Damm","doi":"10.1016/j.brachy.2024.07.001","DOIUrl":"10.1016/j.brachy.2024.07.001","url":null,"abstract":"<div><h3>PURPOSE</h3><div>Ablative therapies for primary and secondary liver malignancies are increasingly adopted in current guidelines. Nevertheless, surgical resection remains the gold standard in most curative therapy settings.</div><div>Extensive studies on mortality and morbidity after ablative treatment of the liver are missing. We investigated complications and mortality after ablative treatment in a large, unselected study cohort.</div></div><div><h3>MATERIALS AND METHODS</h3><div>Standardized patient and treatment data in 4374 percutaneous and angiographic ablative procedures of the liver from the DRG-based hospital reimbursement system (diagnosis-related groups) of an academic hospital in Germany were retrospectively evaluated. We analyzed descriptive patient data, length of stay (LOS), pre-existing medical conditions, previous gastrointestinal surgeries, severe complications, and occurrence of death.</div></div><div><h3>RESULTS</h3><div>Treatment of secondary liver malignancies constituted over two-thirds of all procedures (71%, n = 3053). The mean LOS was 4.1 ± 3.5 days. Severe complications were documented in 1.4% and in-house death in 0.2% of cases, significantly more often after treatment with chemoembolization of primary liver malignancies (<em>p</em> = 0.003; <em>p</em> = 0.0001).</div><div>Previous partial liver resection, partial bowel resection, and chronic renal failure were independent risk factors for the occurrence of severe complications.</div></div><div><h3>CONCLUSION</h3><div>Severe complications and in-hospital death are rare in the treatment of primary and secondary liver malignancies with percutaneous and angiographic procedures.</div><div>They are a viable alternative or addition to a surgical approach in treating liver lesions.</div></div>","PeriodicalId":55334,"journal":{"name":"Brachytherapy","volume":"23 6","pages":"Pages 743-750"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142047582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
3D-printed individual template brachytherapy for the treatment of intractable central pelvic recurrent cervical cancer: A single institution experience 用于治疗难治性中央盆腔复发性宫颈癌的 3D 打印个体模板近距离放射治疗:单一机构的经验。
IF 1.7 4区 医学 Q4 ONCOLOGY Pub Date : 2024-11-01 DOI: 10.1016/j.brachy.2024.05.004
Xiaolu Zhu , Manting Zeng , Youyi Dai , Weilu Kuang , Zijian Zhang , Shan Li , Hong Zhu

OBJECTIVE

The prognosis of recurrent cervical cancer tends to be poor and there are limited effective treatments currently available for these patients. This study was developed to find a safe and effective treatment for patients with central pelvic recurrent cervical cancer.

MATERIALS AND METHODS

This retrospective study analyzed patients with central pelvic recurrent cervical cancer who received 3D-printed individual template (3D-PIT) brachytherapy between February 2019 and June 2023. Analyses of dosimetric parameters, toxicity-related complications, and survival were conducted based on the data of these patients.

RESULTS

Twenty-one patients with central pelvic recurrent cervical cancer patients were enrolled. All of them received 3D-printed individual template (3D-PIT) brachytherapy. The mean respective adjusted cumulative HRCTV-D90 and HRCTV-D98 values for these patients were 86.9 Gy and 75.4 Gy. And the local control (LC) rate of these patients was 57.1%. In these 21 patients, only 2 (9.5%) of them experienced grade 3–4 rectal adverse reactions, while 7 (33.3%) patients experienced grade 3–4 bladder adverse reactions. 5(23.8%) patients had fistula, while 3 of these 5 patients had undergone prior anti-VEGF targeted drug treatment which is a risk factor of fistula. The respective 2-year rates of overall and progression-free survival (OS and PFS) for these patients were 72.9% and 57.4%, with a 26-month median PFS.

CONCLUSIONS

These single-institution data highlight the potential viability of 3D-PIT brachytherapy as an approach to managing intractable central pelvic recurrent cervical cancer following first-line treatment.
目的:复发性宫颈癌的预后往往较差,目前可用于这些患者的有效治疗方法有限。本研究旨在为中央盆腔复发性宫颈癌患者找到一种安全有效的治疗方法:这项回顾性研究分析了2019年2月至2023年6月期间接受3D打印个体模板(3D-PIT)近距离治疗的中央盆腔复发性宫颈癌患者。根据这些患者的数据对剂量参数、毒性相关并发症和生存期进行了分析:21名中央盆腔复发性宫颈癌患者入选。所有患者都接受了三维打印个体模板(3D-PIT)近距离放射治疗。这些患者的调整后累积 HRCTV-D90 和 HRCTV-D98 的平均值分别为 86.9 Gy 和 75.4 Gy。这些患者的局部控制率(LC)为 57.1%。在这 21 例患者中,只有 2 例(9.5%)出现了 3-4 级直肠不良反应,7 例(33.3%)出现了 3-4 级膀胱不良反应。5例(23.8%)患者出现了瘘管,而这5例患者中有3例之前接受过抗血管内皮生长因子靶向药物治疗,这是瘘管的一个风险因素。这些患者的2年总生存率和无进展生存率(OS和PFS)分别为72.9%和57.4%,中位PFS为26个月:这些单个机构的数据突出表明,3D-PIT近距离放射治疗是治疗一线治疗后难治性盆腔中心复发性宫颈癌的一种潜在可行方法。
{"title":"3D-printed individual template brachytherapy for the treatment of intractable central pelvic recurrent cervical cancer: A single institution experience","authors":"Xiaolu Zhu ,&nbsp;Manting Zeng ,&nbsp;Youyi Dai ,&nbsp;Weilu Kuang ,&nbsp;Zijian Zhang ,&nbsp;Shan Li ,&nbsp;Hong Zhu","doi":"10.1016/j.brachy.2024.05.004","DOIUrl":"10.1016/j.brachy.2024.05.004","url":null,"abstract":"<div><h3>OBJECTIVE</h3><div>The prognosis of recurrent cervical cancer tends to be poor and there are limited effective treatments currently available for these patients. This study was developed to find a safe and effective treatment for patients with central pelvic recurrent cervical cancer.</div></div><div><h3>MATERIALS AND METHODS</h3><div>This retrospective study analyzed patients with central pelvic recurrent cervical cancer who received 3D-printed individual template (3D-PIT) brachytherapy between February 2019 and June 2023. Analyses of dosimetric parameters, toxicity-related complications, and survival were conducted based on the data of these patients.</div></div><div><h3>RESULTS</h3><div>Twenty-one patients with central pelvic recurrent cervical cancer patients were enrolled. All of them received 3D-printed individual template (3D-PIT) brachytherapy. The mean respective adjusted cumulative HRCTV-D90 and HRCTV-D98 values for these patients were 86.9 Gy and 75.4 Gy. And the local control (LC) rate of these patients was 57.1%. In these 21 patients, only 2 (9.5%) of them experienced grade 3–4 rectal adverse reactions, while 7 (33.3%) patients experienced grade 3–4 bladder adverse reactions. 5(23.8%) patients had fistula, while 3 of these 5 patients had undergone prior anti-VEGF targeted drug treatment which is a risk factor of fistula. The respective 2-year rates of overall and progression-free survival (OS and PFS) for these patients were 72.9% and 57.4%, with a 26-month median PFS.</div></div><div><h3>CONCLUSIONS</h3><div>These single-institution data highlight the potential viability of 3D-PIT brachytherapy as an approach to managing intractable central pelvic recurrent cervical cancer following first-line treatment.</div></div>","PeriodicalId":55334,"journal":{"name":"Brachytherapy","volume":"23 6","pages":"Pages 634-640"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142147112","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
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Brachytherapy
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