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Long-term Active Surveillance of Screening Detected Subsolid Nodules is a Safe Strategy to Reduce Overtreatment
Journal of Thoracic Oncology ( IF 20.4 ) Pub Date : 2018-10-01 , DOI: 10.1016/j.jtho.2018.06.013
Mario Silva , Mathias Prokop , Colin Jacobs , Giovanni Capretti , Nicola Sverzellati , Francesco Ciompi , Bram van Ginneken , Cornelia M Schaefer-Prokop , Carlotta Galeone , Alfonso Marchianò , Ugo Pastorino

Introduction: Lung cancer presenting as subsolid nodule (SSN) can show slow growth, hence treating SSN is controversial. Our aim was to determine the long‐term outcome of subjects with unresected SSNs in lung cancer screening. Methods: Since 2005, the Multicenter Italian Lung Detection (MILD) screening trial implemented active surveillance for persistent SSN, as opposed to early resection. Presence of SSNs was related to diagnosis of cancer at the site of SSN, elsewhere in the lung, or in the body. The risk of overall mortality and lung cancer mortality was tested by Cox proportional hazards model. Results: SSNs were found in 16.9% (389 of 2303) of screenees. During 9.3 ± 1.2 years of follow‐up, the hazard ratio of lung cancer diagnosis in subjects with SSN was 6.77 (95% confidence interval: 3.39–13.54), with 73% (22 of 30) of cancers not arising from SSN (median time to diagnosis 52 months from SSN). Lung cancer–specific mortality in subjects with SSN was significantly increased (hazard ratio = 3.80; 95% confidence interval: 1.24–11.65) compared to subjects without lung nodules. Lung cancer arising from SSN did not lead to death within the follow‐up period. Conclusions: Subjects with SSN in the MILD cohort showed a high risk of developing lung cancer elsewhere in the lung, with only a minority of cases arising from SSN, and never representing the cause of death. These results show the safety of active surveillance for conservative management of SSN until signs of solid component growth and the need for prolonged follow‐up because of high risk of other cancers.

中文翻译:

筛选检测到的亚实性结节的长期主动监测是减少过度治疗的安全策略

简介:肺癌表现为亚实性结节 (SSN),生长缓慢,因此治疗 SSN 存在争议。我们的目的是确定未切除 SSN 受试者在肺癌筛查中的长期结果。方法:自 2005 年以来,多中心意大利肺检测 (MILD) 筛查试验实施了持续 SSN 的主动监测,而不是早期切除。SSN 的存在与 SSN 部位、肺部其他部位或身体中的癌症诊断有关。采用Cox比例风险模型检验总体死亡率和肺癌死亡率的风险。结果:在 16.9%(2303 人中的 389 人)中发现了 SSN。在 9.3 ± 1.2 年的随访期间,SSN 受试者肺癌诊断的风险比为 6.77(95% 置信区间:3.39-13.54),73%(30 个中的 22 个)癌症不是由 SSN 引起的(从 SSN 诊断的中位时间为 52 个月)。与没有肺结节的受试者相比,SSN 受试者的肺癌特异性死亡率显着增加(风险比 = 3.80;95% 置信区间:1.24-11.65)。SSN引起的肺癌在随访期内没有导致死亡。结论:MILD 队列中患有 SSN 的受试者在肺部其他部位显示出患肺癌的高风险,只有少数病例源于 SSN,并且从未代表死亡原因。这些结果表明,主动监测对 SSN 的保守管理是安全的,直到出现固体成分生长的迹象,并且由于其他癌症的高风险而需要延长随访时间。与没有肺结节的受试者相比,SSN 受试者的肺癌特异性死亡率显着增加(风险比 = 3.80;95% 置信区间:1.24-11.65)。SSN引起的肺癌在随访期内没有导致死亡。结论:MILD 队列中患有 SSN 的受试者在肺部其他部位显示出患肺癌的高风险,只有少数病例源于 SSN,并且从未代表死亡原因。这些结果表明,主动监测对 SSN 的保守管理是安全的,直到出现固体成分生长的迹象,并且由于其他癌症的高风险而需要延长随访时间。与没有肺结节的受试者相比,SSN 受试者的肺癌特异性死亡率显着增加(风险比 = 3.80;95% 置信区间:1.24-11.65)。SSN引起的肺癌在随访期内没有导致死亡。结论:MILD 队列中患有 SSN 的受试者在肺部其他部位显示出患肺癌的高风险,只有少数病例源于 SSN,并且从未代表死亡原因。这些结果表明,主动监测对 SSN 的保守管理是安全的,直到出现固体成分生长的迹象,并且由于其他癌症的高风险而需要延长随访时间。SSN引起的肺癌在随访期内没有导致死亡。结论:MILD 队列中患有 SSN 的受试者在肺部其他部位显示出患肺癌的高风险,只有少数病例源于 SSN,并且从未代表死亡原因。这些结果表明,主动监测对 SSN 的保守管理是安全的,直到出现固体成分生长的迹象,并且由于其他癌症的高风险而需要延长随访。SSN引起的肺癌在随访期内没有导致死亡。结论:MILD 队列中患有 SSN 的受试者在肺部其他部位显示出患肺癌的高风险,只有少数病例源于 SSN,并且从未代表死亡原因。这些结果表明,主动监测对 SSN 的保守管理是安全的,直到出现固体成分生长的迹象,并且由于其他癌症的高风险而需要延长随访时间。
更新日期:2018-10-01
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