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Influence of 18F-FDG PET/CT on clinical management and outcome in patients with advanced melanoma not primarily selected for surgery based on a linked evidence approach.
European Journal of Nuclear Medicine and Molecular Imaging ( IF 8.6 ) Pub Date : 2020-03-02 , DOI: 10.1007/s00259-020-04733-x
Susann-Cathrin Olthof 1 , Andrea Forschner 2 , Peter Martus 3 , Claus Garbe 2 , Konstantin Nikolaou 1 , Christian la Fougère 4 , Brigitte Gückel 1 , Werner Vach 5 , Christina Pfannenberg 1
Affiliation  

PURPOSE To evaluate the clinical benefit of positron emission tomography (PET)/computed tomography (CT) in patients with advanced melanoma, primarily not selected for surgery based on management changes and survival data using the linked evidence approach (LEA). METHODS A total of 201 18F-FDG PET/CT examinations (n = 33, stage III and n = 168, stage IV) in 119 melanoma patients, primarily not scheduled for surgery, were analysed regarding their impact on clinical management. Patients were selected from a prospective oncological PET/CT registry. The three PET/CT indication groups included unclear lesions in conventional imaging (n = 8), routine follow-up after multiple surgeries (n = 115) and therapy response evaluation of systemic therapy (n = 78). PET/CT-induced management changes were categorized either as major (change from follow-up to surgical or systemic treatment or vice versa, change from surgery to systemic therapy or vice versa) or minor (modifications in systemic therapy). The expected benefit of changes was determined via the linked evidence approach (LEA) connecting registry data, outcome data including overall survival and evidence of diagnostic accuracy of PET/CT based on existing literature. RESULTS Related to the total study cohort, a change of management after PET/CT was observed in 48% of scans, including 10% minor and 38% major changes. Major changes involved a shift either from follow-up (33/201) or therapy pause (7/201) to systemic therapy, to surgical or other local therapy (26/201) and BSC (2/201). Nine out of 201 cases resulted in treatment pause of systemic therapy. We could confirm the prognostic value of PET/CT-based management by observing a 5-year survival rate more than roughly doubled in patients followed up after tumour exclusion or under local therapy compared with patients under systemic therapy. We could argue for a patient benefit from PET/CT-based management changes using results on accuracy and therapeutic effects from the literature. CONCLUSION The use of PET/CT in advanced melanoma patients, primarily not considered for surgery, resulted in frequent changes of management associated with a relevant expected clinical benefit especially in patients classified by PET/CT as tumour-free or eligible for radical surgery.

中文翻译:

18F-FDG PET / CT对晚期黑素瘤患者的临床管理和预后的影响(主要不是根据相关证据方法选择的)。

目的评估正电子发射断层扫描(PET)/计算机断层扫描(CT)在晚期黑色素瘤患者中的临床益处,该患者主要根据管理变化和生存数据使用链接证据方法(LEA)未选择用于手术。方法对主要未计划手术的119名黑色素瘤患者进行了201项18F-FDG PET / CT检查(n = 33,III期,n = 168,IV期),以检查其对临床管理的影响。从前瞻性肿瘤PET / CT登记中选择患者。三个PET / CT适应症组包括常规影像学中不清楚的病变(n = 8),多次手术后的常规随访(n = 115)以及全身治疗的治疗反应评估(n = 78)。PET / CT引起的管理改变分为主要(从随访改变为手术或全身治疗,反之亦然,从外科改变为全身治疗或反之)或次要(全身治疗的改变)。改变的预期收益是通过链接证据方法(LEA)来确定的,该方法将注册表数据,包括总体生存在内的结局数据和基于现有文献的PET / CT诊断准确性的证据联系起来。结果与整个研究队列相关,在48%的扫描中观察到PET / CT后管理的变化,包括10%的微小变化和38%的重大变化。主要变化涉及从随访(33/201)或治疗暂停(7/201)到全身性治疗,再到外科或其他局部治疗(26/201)和BSC(2/201)的转变。201例中有9例导致全身治疗暂停。通过观察排除肿瘤后或局部治疗后随访的患者的5年生存率比全身治疗的患者约5倍的存活率高,我们可以证实基于PET / CT治疗的预后价值。我们可以使用文献中关于准确性和治疗效果的结果,为基于PET / CT的管理变更带来的患者益处进行争论。结论在主要不考虑手术的晚期黑色素瘤患者中使用PET / CT会导致管理的频繁变化,并具有相关的预期临床益处,尤其是在PET / CT分类为无肿瘤或适合进行根治性手术的患者中。通过观察排除肿瘤后或局部治疗后随访的患者的5年生存率比全身治疗的患者约5倍的存活率高,我们可以证实基于PET / CT治疗的预后价值。我们可以使用文献中关于准确性和治疗效果的结果,为基于PET / CT的管理变更带来的患者益处进行争论。结论在主要不考虑手术的晚期黑色素瘤患者中使用PET / CT会导致管理的频繁变化,并具有相关的预期临床收益,尤其是在PET / CT分类为无肿瘤或适合进行根治性手术的患者中。通过观察排除肿瘤后或局部治疗后随访的患者的5年生存率比全身治疗的患者约5倍的存活率高,我们可以证实基于PET / CT治疗的预后价值。我们可以使用文献中关于准确性和治疗效果的结果,为基于PET / CT的管理变更带来的患者益处进行争论。结论在主要不考虑手术的晚期黑色素瘤患者中使用PET / CT会导致管理的频繁变化,并具有相关的预期临床收益,尤其是在PET / CT分类为无肿瘤或适合进行根治性手术的患者中。我们可以使用文献中关于准确性和治疗效果的结果,为基于PET / CT的管理变更带来的患者益处进行争论。结论在主要不考虑手术的晚期黑色素瘤患者中使用PET / CT会导致管理的频繁变化,并具有相关的预期临床益处,尤其是在PET / CT分类为无肿瘤或适合进行根治性手术的患者中。我们可以使用文献中关于准确性和治疗效果的结果,为基于PET / CT的管理变更带来的患者益处进行争论。结论在主要不考虑手术的晚期黑色素瘤患者中使用PET / CT会导致管理的频繁变化,并具有相关的预期临床收益,尤其是在PET / CT分类为无肿瘤或适合进行根治性手术的患者中。
更新日期:2020-03-02
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