Étude de faisabilité : l’utilisation de l’imagerie médicale en éducation thérapeutique en radiothérapie

PurposeAssess the feasibility of a randomized controlled trial (RCT) exploring the use of medical imaging as a therapeutic education (TPE) intervention in external radiation therapy.Materials and methodsExperimental feasibility trial of “RCT” type carried out in a single-center, between November 2019 and March 2020, following adult patients treated by thoracic radiotherapy. In addition to the information usually given, the experimental group benefited from an intervention consisting in the visualization of their own medical images using the open-source software “Stone of Orthanc”.ResultsForty-nine patients were recruited with a refusal rate of 8.16% (4/49). 20 patients were withdrawn from the study for health reasons (COVID), 10 for medical reasons. All the remaining 15 participants completed the process. Although not significant, the experimental group showed a median gain in the perception of knowledge compared to the control group (+ 1.9 (1.6 – 2.2)) vs (+ 1.4 (1.4 – 1.8)), as well as a decrease in scores related to anxiety (? 3.0 (?4.5 - (?2.0)) vs ? 1.0 (?5.0 - 0.0)) and emotional distress ((? 5.0 (? 7.5 - (? 3.5)) vs (? 2.0 (? 5.0 - (? 1.0)) A significant reduction (p = 0.043) is observed for the depression score ((? 2.0 (?3.0 - (?1.5)) vs (0.0 (0.0 – 0.0)).ConclusionThis study demonstrates the feasibility of the project, with promising preliminary results. Some adaptations in order to conduct a larger-scale RCT are highlighted.     

The impact of circumferential tumour location on the clinical outcome of rectal cancer patients managed with neoadjuvant chemoradiotherapy followed by total mesorectal excision

AimTo investigate the impact of circumferential tumour location on neoadjuvant chemoradiotherapy (CRT) response and its prognostic value for locally advanced rectal cancer (LARC) patients after CRT and surgery.MethodsA retrospective study was performed on 486 patients with LARC who received neoadjuvant CRT and surgical treatment. The rate of pathological complete response (pCR) and survival among patients with anteriorly, laterally, and posteriorly located tumours were compared. Logistic regression was performed to identify pCR predictors.ResultsThe anterior tumours exhibited the highest pCR rate of 26.7%, which was slightly higher than the 20.0% and 12.3% for lateral and posterior tumours, respectively (P = 0.006). The 5-year Overall survival (OS) rates after CRT were similar among the anterior, lateral, and posterior groups (anterior vs lateral vs posterior: 81.1% vs 89.9% vs 84.1%, P = 0.6368). Multivariate analysis revealed that the circumferential tumour location, post-CRT serum CEA and post-CRT tumour thickness measured by MRI were independently correlated with achieving pCR.ConclusionThis study is the first, to the best of our knowledge, to show that anterior LARC exhibited the highest pCR rate after neoadjuvant CRT. Patients with anterior rectal cancers do not have different prognoses from those with non-anterior cancers if they undergo neoadjuvant CRT.     

鼻咽癌调强放疗中上颈部CTV剂量优化对主要中线结构的保护

目的:探讨调强放疗和多模态影像指导下,鼻咽癌中上颈临床靶区(CTV)剂量优化对保护喉咽、前环和后环的意义。方法:回顾性分析2016—2018年间江苏省肿瘤医院收治的298例初治鼻咽癌患者资料。所有患者按以下方案进行个体化中上颈CTV剂量优化：A组：双侧完全优化,即双颈CTV剂量均50.4 Gy;B组：单侧完全优化,即单...     

石见穿的化学成分及抗肿瘤作用研究进展

石见穿在恶性肿瘤的临床治疗中应用较为广泛。主要包括多糖类、三萜类、甾醇类、多酚类等成分,体内外实验研究表明,石见穿提取物在体内、体外均有显著的抗肿瘤活性。本文根据国内外文献,主要总结了石见穿的化学成分及其抗肿瘤作用的研究状况,为进一步开发石见穿在抗肿瘤方面的应用提供参考。     

拓扑替康、依托泊甙联合顺铂治疗小细胞肺癌的临床观察

目的：比较拓扑替康、依托泊甙联合顺铂与EP方案治疗小细胞肺癌的临床疗效和毒副反应。方法：患随机分为两组，A组使用TEP方案：TPT0．75～1．25mg／m^2／d，静滴30分钟，d1～5，VP-16 100mg口服或静滴，d2～6，DDP 40mg／d，静滴d1～3；B组使用EP方案：VP-16 100mg静滴或口服d1～5，DDP 40mg／d静滴d1～3。结果：A组14例病例，CR21．43％，PR56．14％，有效率为78．57％；B组13例病例，CR23．08％，PR38．46％，有效率为61．54％。主要毒副反应为血液学毒性及消化道反应。结论：拓扑替康、依托泊甙联合顺铂治疗小细胞肺癌临床效果好，虽然毒副反应较大，但值得进一步研究。