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Ultrasound verification of plaque brachytherapy placement in patients treated for primary uveal melanoma: a single-center experience
Ocular Oncology and Pathology Pub Date : 2023-03-14


Introduction: Proper plaque positioning is essential for effective episcleral plaque brachytherapy and can be verified using ultrasound. In this study, we show our center’s protocol for intraoperative ultrasound verification of plaque placement and present our single-center local recurrence data in patients with primary UM involving the choroid and/or ciliary body. We also indicate our center’s distance metastasis rate for patients presenting with primary UM. Methods: All patients who presented to our institution with UM of the choroid and/or ciliary body between May 2017 and March 2022 and treated with plaque brachytherapy were enrolled. Endpoints include the 24-month local recurrence-free rate (primary) and 24-month metastasis rate (secondary), both estimated using the Kaplan-Meier method (KM). Results: Local Recurrence: 176 patients met the study criteria with median follow-up of 23.2 months. The 24-month recurrence-free probability for this cohort is estimated at 99.1% (95% confidence interval, 0.974-1.00). Metastatic Recurrence: 136 of these patients underwent at least one follow-up surveillance scan. The 24-month metastasis-free survival probability in our cohort was 87% (95% confidence interval: 81%-94%). Conclusions: We show improved local control utilizing ultrasound verification compared to historical controls who received TTT and brachytherapy without intraoperative ultrasound confirmation.


中文翻译:

原发性葡萄膜黑色素瘤患者斑块近距离放射治疗放置的超声验证:单中心经验

简介:正确的斑块定位对于有效的巩膜外斑块近距离放射治疗至关重要,并且可以使用超声进行验证。在这项研究中,我们展示了我们中心的术中超声验证斑块放置的方案,并展示了我们在涉及脉络膜和/或睫状体的原发性 UM 患者中的单中心局部复发数据。我们还指出了我们中心对原发性 UM 患者的远距离转移率。方法:所有在 2017 年 5 月至 2022 年 3 月期间因脉络膜和/或睫状体 UM 到我们机构就诊并接受斑块近距离放射治疗的患者均被纳入。终点包括 24 个月局部无复发率(主要)和 24 个月转移率(次要),均使用 Kaplan-Meier 方法 (KM) 进行估算。结果:局部复发:176 名患者符合研究标准,中位随访时间为 23.2 个月。该队列的 24 个月无复发概率估计为 99.1%(95% 置信区间,0.974-1.00)。转移性复发:这些患者中有 136 名接受了至少一次随访监测扫描。我们队列中的 24 个月无转移生存概率为 87%(95% 置信区间:81%-94%)。结论:与接受 TTT 和近距离放射治疗但未进行术中超声确认的历史对照相比,我们显示利用超声验证改善了局部控制。我们队列中的 24 个月无转移生存概率为 87%(95% 置信区间:81%-94%)。结论:与接受 TTT 和近距离放射治疗但未进行术中超声确认的历史对照相比,我们显示利用超声验证改善了局部控制。我们队列中的 24 个月无转移生存概率为 87%(95% 置信区间:81%-94%)。结论:与接受 TTT 和近距离放射治疗但未进行术中超声确认的历史对照相比,我们显示利用超声验证改善了局部控制。
更新日期:2023-03-15
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