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Cardiac Resynchronisation Therapy or MitraClip® Implantation for Patients with Severe Mitral Regurgitation and Left Bundle Branch Block?

机译:严重二尖瓣反流和左束支传导阻滞患者是否需要心脏再同步疗法或MitraClip®植入?

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摘要

Secondary or functional mitral regurgitation (FMR) is a common problem in patients with chronic heart failure (HF). About one-third of patients with chronic HF also have left bundle branch block (LBBB). Approximately one-third of patients with an indication for cardiac resynchronisation therapy (CRT) have moderate-to-severe FMR. This FMR may either be a consequence of systolic dysfunction or it may occur due to dyssynchrony. Both directly reducing FMR and correcting cardiac dyssynchrony are viable therapeutic approaches in selected patients, according to the 2012 European Society of Cardiology (ESC) Guidelines for valvular heart disease. Initial presence of FMR is an independent predictor of lack of clinical response to CRT. Patients undergoing CRT without signs of significant clinical improvement may be considered candidates for the percutaneous MitraClip® procedure. As yet, there are not enough data to select patients that would benefit from being treated primarily with MitraClip. A clinical trial in HF patients to be randomised to either MitraClip procedure or CRT is needed to confirm actual ESC Guideline therapy.
机译:继发性或功能性二尖瓣反流(FMR)是慢性心力衰竭(HF)患者的常见问题。约有三分之一的慢性HF患者也有左束支传导阻滞(LBBB)。大约有三分之一有心脏再同步治疗(CRT)指征的患者患有中度至重度FMR。该FMR可能是收缩功能障碍的结果,也可能是由于不同步引起的。根据《 2012年欧洲心脏病学会(ESC)瓣膜性心脏病指南》,直接降低FMR和纠正心脏不同步性都是在某些患者中可行的治疗方法。 FMR的最初存在是对CRT缺乏临床反应的独立预测因子。接受CRT且无明显临床改善迹象的患者可被视为经皮MitraClip®手术的候选人。到目前为止,没有足够的数据来选择主要通过MitraClip治疗而受益的患者。需要对HF患者进行一项随机分为MitraClip手术或CRT的临床试验,以确认实际的ESC指南治疗。

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