\n\n
如果患者的肿瘤位于脑内重要的功能区或临近大血管及重要的神经,一旦强行全切除,会引起不可逆的严重功能损害,或者大出血,甚至危及生命。这时候,医生只能选择在保证功能和切除肿瘤之间做一个平衡,这种情况是医患双方都能接受的理念,也是神经外科医生手术治疗的原则。那么,残余的肿瘤就需要术后的辅助治疗来解决。
\n\n术后医生会根据肿瘤的性质和对放化疗的敏感性,选择相应的治疗手段。例如,一个鞍区巨大的侵袭性垂体瘤,手术能解决的问题相当有限,那么,在术后进行放疗和内分泌治疗对患者的预后则至关重要。另外,近期也有对侵袭性垂体瘤术后采用替莫唑胺化疗的报道[1]。
\n\n肿瘤诊断的金标准是依靠术后的病理诊断,进而来区分肿瘤的良恶性。但是,对于某些肿瘤,虽然病理诊断是良性,而生物学行为却有恶变的趋势,或出现某些增殖活性指标比较高。此时,临床上可以预判为具有复发和恶变倾向的肿瘤,可以根据具体情况,建议患者行术后的补充治疗,一般情况选择术后放疗的可能性更大。
\n\n一些特殊部位的良性肿瘤由于时程较长,肿瘤对周围结构有侵犯,即便肿瘤和受累的其他组织全部切除,术后复发的风险也是比较高的。
\n\n还有一些良性肿瘤,手术后反复复发,且两次手术间隔时间越来越短,这时术后放疗有可能对改善肿瘤的复发起到一定效果。临床上还有一些罕见的报道,即发生肺转移的脑膜瘤,这时就需要根据具体的情况进行手术、放疗或者化疗。
\n\n良性脑肿瘤术后是否需要放化疗是一个没有确定答案的问题,需要根据肿瘤的部位、性质、生物学特性、肿瘤切除的程度及术后的评估来判断,必要时需要经过 MDT(multiple disciplinary team,多学科联合会诊)的讨论。
\n\n总之,对于脑肿瘤,需要应用现代的技术,从患者的利益出发,科学地制定个体化的治疗方案,才能保证患者的最大获益。
\n\n 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