背景:贝伐单抗是一种针对VEGF-A的抗体。它被批准用于治疗许多癌症疾病。其副作用目前尚不为医生所熟知。
方法:一名患有转移性结肠腺癌的70岁女性因昏迷进入重症监护病房,在接受含贝伐单抗的每月联合化疗4天后,奥沙利铂,5氟尿嘧啶,和第四次亚叶酸.在临床检查中,她表现为下肢痉挛和高血压。病因学调查,包括脑干密度测定,脑脊液检查,精神药物尿检,和脑电图,是阴性的。除了尼卡地平和乌拉地尔以外,没有任何其他治疗的意识得到改善,但患者最初感到困惑。脑磁共振成像显示改变提示后部可逆性脑病综合征,但也涉及额叶。还有其他生物学和超声心动图变化提示心脏受累。10天后,患者的心脏和神经系统表现完全恢复。
结论:医师应注意贝伐单抗的心血管不良反应。必须治疗高血压,以避免更严重的并发症。当发生后部可逆性脑病综合征时,应调查心脏受累情况。
BACKGROUND: Bevacizumab is an antibody directed against VEGF-A. It is approved for the treatment of many cancer diseases. Its side effects are currently not well known by physicians.
METHODS: A 70-year-old female with metastatic colonic adenocarcinoma was admitted in the intensive care unit because of a coma, four days after having received a combined monthly chemotherapy containing bevacizumab, oxaliplatine, 5 fluorouracil, and folinic acid for the fourth time. On clinical examination, she presented with lower limbs spasticity and hypertension. Etiologic investigations, including cerebral tomodensitometry, cerebrospinal fluid examination, psychotropic drugs urinary testing, and electroencephalogram, were negative. Consciousness improved without any other treatment than nicardipine and urapidil, but the patient was initially confused. Cerebral magnetic resonance imaging showed changes suggestive of posterior reversible encephalopathy syndrome, but also involving frontal lobes. There were additional biological and echocardiographic changes suggestive of cardiac involvement. The patient recovered completely of both cardiac and neurologic manifestations 10 days later.
CONCLUSIONS: Physicians should be aware of cardiovascular adverse effects of bevacizumab. High blood pressure must be treated to avoid more severe complications. When a posterior reversible encephalopathy syndrome occurs, cardiac involvement should be investigated.