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香港,中国 - Media OutReach - 2019530 - 经常有人会感到骨痛,不少人以为骨痛只是姿势不良或身体功能退化所致,但其实持续骨痛可能是多发性骨髓瘤的症状之一。血液及血液肿瘤科专科梁宪孙医生表示,多发性骨髓瘤属血癌的一种,多见于60至70岁的"高龄"患者,也有年轻至30至40岁的病例,但由于症状不明确,患者一般会忽略诸如骨痛之类的身体警号,以致延迟求诊。

骨痛与多发性骨髓瘤

多发性骨髓瘤造成一连串的病征,最主要的四个病征可以四个英文字母"CRAB"作归纳,分别代表高血钙(C)、肾衰竭(R)、贫血(A)及骨痛骨折(B)。梁宪孙医生指出当患者出现这些症状,便须接受以下检查以明确诊断,包括 : 血清和小便检测看单克隆免疫球蛋白水平是否上升;骨髓检查观察浆细胞有没有异常增生;也可通过X光、核磁共振或先进的双同位素正电子计算机扫描,以显示骨骼受损情况。此外,医生也会为患者进行基因测试,以判定病情属于高危还是低危类别,让患者得到适当的治疗。

新药控制病情效果佳

多发性骨髓瘤的治疗目标是控制病情,预防复发。以往传统药物最多只能控制3年,随着科技进步,出现了新式靶向药物,包括蛋白酶体抑制剂、免疫调节剂和单克隆抗体。当联合类固醇或化疗进行治疗时,控制病情及防复发的效果可持续610年或以上。

蛋白酶体抑制剂为多发性骨髓瘤治疗的重要药物,能有效、迅速、准确地控制病情,此靶向药共有三代,第一代最常见;第二代则药效较强,常用于复发的患者,但如基因测试属高危患者,医生也会考虑用作一线治疗;至于第三代则为口服药,方便患者服用。

按年龄体质制定治疗方案

最新的多发性骨髓瘤治疗方案是确诊后先进行36个月的诱导治疗,诱导治疗是在蛋白酶体抑制剂、免疫调节剂、单克隆抗体、类固醇和化疗药这5类药当中选取3种药物合并使用;当病情逐渐稳定后,65岁以下较年轻患者如身体状况合适,可接受自体骨髓移植手术作为巩固治疗,过程是先抽取并储存患者体内的干细胞,再处方高剂量化疗药杀死癌细胞,然后再将储存的干细胞重新注入身体内,整个疗程历时2个月,随后再接受12年或以上的维持治疗,以便继续稳定病情,减低复发风险。

梁医生表示一般会按患者的年龄和身体状况而决定能否进行自体干细胞移植,如超过65岁或体质不宜做自体骨髓移植者,则可诱导治疗后接受维持治疗。他续称,医生会选择合适的药物治疗方案,为患者作诱导治疗以及维持治疗时,除了因应他们的身体状况,也会考虑其个人经济负担。

资料来源:

健康研究所

Source http://www.media-outreach.com/release.php/View/8856#Contact