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ID:18915256
大小:13.01 MB
页数:86页
时间:2018-09-22
《内科学课件心律失常(arythmia)》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Arrhythmias1Anatomyofcardiacconductionsystem(心脏传导系统解剖)Overview(概述)2★Sinusnode—normalpacemaker,highestautomaticity(窦房结—正常起搏点,自律性最高)。★Internodaltracts—connectsinustoAVnode(结间束—连接窦房结与房室结)。★Atrioventricularnode(AVnode)—secondpacemaker(房室结—第二起搏点)。★Hisbundle(希氏束)。★Theleftandrightbundle
2、branches(左右束支)。★TerminalPurkinjefibers(普肯耶纤维)。Overview(概述)Anatomyofcardiacconductionsystem(心脏传导系统解剖)3★Theabnormalitiesinfrequency、rhythm、source、speedorsequenceofconductionofcardiacpulses(是指心脏冲动的频率、节律、起源部位、传导速度或激动次序的异常)。Overview(概述)Definitionofarrhythmias(心律失常定义)4Anatomyofcardiac
3、conductionsystem(心脏传导系统解剖)Overview(概述)5★Accordingtomechanismsofarrhythmogenesis,theyareclassifiedasabnormalsourceofpulseformationandabnormalitiesofpulseconduction(根据心律失常发生的不同机制,将其分为冲动形成异常和冲动传导异常两大类)。☆Abnormalsourceofpulseformation(冲动形成异常):●Sinusarrhythmias(窦性心律失常):○Sinustachycard
4、ia(窦性心动过速);○Sinusbradycardia(窦性心动过缓);○Sinusirregularity(窦性心律不齐);○Sinuscardiacarrest(窦性停搏)。Overview(概述)Classificationofarrhythmias(心律失常分类)6☆Abnormalsourceofpulseformation(冲动形成异常):●Ectopicrhythms(异位心律):○Passiveectopicrhythms(被动性异位心律):◎Escapebeats(atrial,junctional、ventricular)逸搏(房性
5、、结性、室性);◎Escaperhythms(atrial,junctional、ventricular)逸搏心律(房性、结性、室性);○Activeectopicrhythms(主动性异位心律):◎Prematuresystole(atrial,junctional,ventricular)期前收缩或过早搏动(房性、结性、室性);◎Paraxysmaltachycardias(atrial,junctional、atrioventricularreentrant,ventricular)阵发性心动过速(房性、结性、房室折返性、室性);◎Flutter
6、、fibrillation(扑动、颤动):房性、室性。Overview(概述)Classificationofarrhythmias(心律失常分类)7☆Abnormalitiesofpulseconduction(冲动传导异常)●Physiological(生理性):○Interferenceandatrioventriculardissociation(干扰和房室分离)。●Pathophysiological(病理性):○Sino-atrialblock(窦房传导阻滞);○Intra-atrialblock(房内传导阻滞);○Atrial-ventri
7、cularblock(房室传导阻滞);○Branchblock(束支或分支阻滞)或Intraventricularblock(室内阻滞)。●AbnormalAVconnection–preexcitationsyndrome(房室间传导异常—预激综合征)。Classificationofarrhythmias(心律失常分类)Overview(概述)8★Accordingtoheartrate(根据心律快慢):☆Tachydysrhythmias(快速性心律失常);☆Bradydysrhythmias(缓慢性心律失常)。Classificationofar
8、rhythmias(心律失常分类)Overview(概述)9★Reentry—M
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