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Pacing mode

心血管

关键词心血管 治疗仪器 临床治疗

词汇介绍

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解析

Pacing mode

释义   n. 起搏方式

词组   Cardiac pacing mode  心脏起搏方式

例句   Objective To explore the cause of child permanent heart pacing and compare different pacing mode. 

目的:探讨小儿永久性心脏起搏的病因和起搏方式的差异。


概述

起搏器种类、功能繁多,加之患者的缓慢心律失常特点和具体病情不同,对具体患者选择何种起搏器和起搏方式是临床医师需要经常面临的问题。 单腔起搏方式将一根电极导线放置在心房或心室,连接单腔脉冲发生器SSI(R)后形成AAI(R)或VVI(R)单腔起搏模式。 双腔起搏方式脉冲发生器具有两个腔,分别将心房和心室导线放置在右心房和右心室(DDD模式)。也可采用具有心房感知及心室起搏/感知功能的单一导线(VDD模式,已很少用)。DDD(R)模式又称房室全能型起搏,是具有房室双腔顺序起搏

Prominent differences in left ventricular performance and myocardial properties between right ventricular and left ventricular-based pacing modes in rats复制标题

大鼠右心室和左心室起搏模式在左心室性能和心肌特性上的显著差异

发表时间:2017-07-19

影响因子:4.0

作者: Wesam Mulla

期刊:Sci Rep

The electromechanical and molecular consequences of various ventricular pacing modes have become a subject of intense interest in recent years due to profound clinical implications1–3. Compelling evidence indicates that right ventricular (RV) pacing can be detrimental to left ventricular (LV) function. The sequence of electrical activation during RV pacing may largely resemble the activation pattern of left bundle branch block (LBBB)4, and can result in dyssynchronous LV contraction5, 6. In accordance, RV pacing increases the risk for heart failure (HF) even in patients without pre-existing LV dysfunction.Cardiac resynchronization therapy (CRT) by means of biventricular (BiV) pacing was developed as a strategy to overcome the deleterious effects of electromechanical dyssynchrony in the failing heart and represents a major advance in HF therapy.

译文

由于深刻的临床意义,近年来各种心室起搏模式的机电和分子后果已成为人们极为关注的主题。 令人信服的证据表明右心室(RV)起搏可能对左心室(LV)功能有害。 RV起搏期间的电激活顺序可能很大程度上类似于左束支传导阻滞(LBBB)4的激活模式,并且可导致不同步LV收缩5,6。相应地,RV起搏增加了心力衰竭(HF)的风险,即使在 没有预先存在LV功能障碍的患者。通过双心室(BiV)起搏进行的心脏再同步治疗(CRT)被发展为克服失败心脏中机电不同步的有害影响的策略,并且代表了HF治疗的重大进步。