下面的一篇分析表明:
1. PCI 对NSCLC 无显著生存收益
2. 对早中期的患者进行脑进展评估没有太大的价值(只有很少部分的人被诊断出脑转移)
Incidence of symptomatic brain metastasis following radical radiotherapy for non-small cell lung cancer: is there a role for prophylactic cranial irradiation? (2012)
E Khan, MRCP, DGM, S Ismail, MB ChB, and R Muirhead, FRCR, MD
We would conclude that our current practice, of staging the brain in high-risk cases only, is sufficient to identify the majority of patients who will have symptomatic brain metastasis within 6 months. In addition, the low rate of symptomatic brain metastasis found in our study brings into question the necessity for PCI. Finally, although there is a suggestion in the literature that identifying brain metastasis earlier provides a better prognosis [33], this is currently unproven. Until this is studied further in a prospective trial, there is no robust rationale for routine brain imaging in NSCLC patients undergoing work-up for radical treatment. |