经导管心内膜注射植入性海藻酸盐水凝胶治疗心脏再同步化治疗除颤器无应答心力衰竭患者1例

Transcatheter endocardial alginate-hydrogel implantation for the treatment of a patient with non-responsive heart failure on cardiac resynchronization therapy defibrillator:a case report

心力衰竭是冠心病、结构性心脏病等几乎所有心血管疾病终末阶段。针对终末期心力衰竭,药物及心脏辅助装置治疗作用有限,心脏移植手术存在供体不足与免疫排斥等问题。海藻酸盐水凝胶兼具力学支撑和诱导心脏组织再生修复功能,本中心于2021年3月开展了全球首例在终末期心力衰竭患者行经导管心内膜注射植入性海藻酸盐水凝胶治疗,进行了安全性及可行性的探索,研究结果表明治疗效果良好。鉴于在既往研究中已施行心脏再同步化治疗除颤器(CRT-D)植入的心力衰竭患者均被排除在外,本病例报道1例经导管心内膜注射植入性海藻酸盐水凝胶治疗CRT-D无应答心力衰竭患者治疗情况,术后随访中患者就医次数较前明显减少,生活质量得到显著提高,可能拓展该项技术的应用适应证。

Heart failure(HF)is the end stage of almost all cardiovascular diseases,including coronary heart disease and structural heart disease.For end-stage HF,medications and cardiac assist devices have limited therapeutic effects,and heart transplantation is associated with donor shortage and immune rejection.Alginate hydrogel has the ability to mechanically support and induce cardiac tissue regeneration and repair.In March 2021,we conducted the world’s first transcatheter endocardial alginate-hydrogel implantation in patients with end-stage heart failure,and explored the safety and feasibility of the treatment.Given that patients with heart failure who had undergone cardiac resynchronization therapy defibrillator(CRT-D)were excluded from previous studies,this paper is the first to report a case of transcatheter endocardial alginate-hydrogel implantation in a patient with heart failure who did not respond to CRT-D,with a significant reduction in the number of visits to the doctor and a significant improvement in the quality of life during the post-procedure follow-up,which may expand the indications for the use of this technology.