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香港,中国 - Media OutReach - 2019年12月23日 - 气喘、头晕可以是贫血症状,如果加上骨痛,更有可能是骨髓瘤的警号。于香港私人执业、血液及血液肿瘤科专科陈敏航医生表示:「多发性骨髓瘤的常见征兆是骨痛,当患者出现严重贫血症状,例如头晕、无力,可能代表病情已进入较严重的阶段,宜尽快求医。」近年药物组合如雨后春笋般出现,其中单克隆抗体靶向药的组合治疗效果显着,可令更多患者受惠。

持续骨痛 当心骨髓瘤

血液及血液肿瘤科专科陈敏航医生

多发性骨髓瘤在香港属不常见癌症,一般中老年为高危组别。现代人较关注自身健康,少部分骨髓瘤病人可以在体检过程中发现早期病征。陈敏航医生指,骨髓瘤的病征可简称为「C.R.A.B.」分别代表高血钙(hyperCalcaemia)、肾功能受损(Renal insufficiency)、贫血(Anaemia)及骨骼问题(Bone lesions)。

骨痛宜及早求诊

溶骨性病变是多发性骨髓瘤患者身上常见的骨骼问题,会导致患者骨痛或甚骨折,部分骨髓瘤患者会误以为骨痛只是疲劳或退化引致,而没有及时求诊。陈医生指,如果持续的骨痛,特别是静止骨痛或夜间骨痛,不容忽视。陈医师续道︰「近期一名约70岁的长者,起初出现髋部骨痛,以为是退化,直至两个月后痛得无法走路,才到医院检查,及后发现贫血、肾衰竭、血钙高及副蛋白高,更有多处溶骨现象,最终确诊患骨髓瘤。」

当骨髓内的浆细胞变异,会抑制造血细胞,引致贫血,而癌变浆细胞分泌出来的副蛋白,会沉积于肾脏,令肾脏受损甚至衰竭,加剧贫血的情况。陈医师续称当患者出现骨髓瘤相关的贫血症状,例如头晕、气喘,血红蛋白往往已低至8度以下,病情属比较严重。

提升完全缓解率

陈医生坦言:「以前面对骨髓瘤病人比较无奈,因为治疗药物选择有限。」过去医学界可使用于骨髓瘤治疗的化疗药物不多,加上糖皮质激素及痛楚管理药物也未能有效地控制症状,眼见不少病人快速恶化,甚至短期内死亡。

现时治疗多发性骨髓瘤的药物选择大幅增加,包括第二代的蛋白酶体抑制剂和第二、三代免疫调节剂,及全新的药物种类──单克隆抗体。其中,首个用于骨髓瘤治疗的抗CD38单克隆抗体达雷木单抗(daratumumab),可配合蛋白酶体抑制剂、免疫调节剂及激素作为组合靶向治疗方案,务求达致最佳治疗反应,令病情处于缓解状态。陈医生表示,日后希望能在第一线治疗中使用更多不同药物的组合治疗,并会评估患者是否属高危组别,以决定是否须提早使用这新型靶向药物。

减轻身体痛楚

临床上达雷木单抗毒性较低,尤其对心脏及肾脏的毒性较轻,对骨髓的抑压亦较少,而且未来首剂滴注可分开两天注射,方便有骨痛的骨髓瘤患者,使他们毋须因滴注而等候8小时,以减轻身体痛楚。患者接受相关组合治疗后,达致完全缓解的情况理想,65岁以下的患者可继而接受自体骨髓移植。

资料来源 : 

健康研究所

Source http://www.media-outreach.com/release.php/View/25039#Contact