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单击此处编辑母版标题样式,单击此处编辑母版文本样式abc123,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式abc123,第二级,第三级,第四级,第五级,*,临时起搏器的应用与观察,临时起搏器的应用与观察,人工心脏起搏是用人工脉冲电流刺激心脏以启动心搏,从而代替心脏自身起搏点,主要用于治疗缓慢性心律失常,也用于抑制快速性心律失常。,若心肌已丧失,兴奋收缩,特性,则起搏无效。,人工心脏起搏是用人工脉冲电流刺激心脏以启动心搏,从而代替心脏,起搏器的组成,脉搏发生器,及电源,导线,电极,起搏器的组成脉搏发生器导线电极,脉冲发生器,脉冲发生器,脉冲发生器,脉冲发生器,心外_临时起搏器课件,电极的固定方法,主动固定,螺旋式电极头,被动固定,齿状电极头,被动固定,鳍状电极头,电极的固定方法主动固定被动固定被动固定,起搏器命名代码,NASPE,:,N,orth,A,merican,S,ociety of,P,acing and,E,lectrophysiology,BPEG,:,B,ritish,P,acing and,E,lectrophysiology,G,roup,N,ASPE/,B,PEG,G,eneric(NBG),Pacemaker Code,起搏器命名代码NASPE:North American So,The 1987 NASPE/BPEG Generic(NBG)Pacemaker Code,Position,I,II,III,IV,V,Category:,Chamber(s)paced,Chamber(s)sensed,Response(s)to sensing,Program-mability,rate modulation,Antitachy-arrhythmia function(s),O,=None,A,=Atrium,V,=Ventricle,D,=Dual(A+V),O,=None,A,=Atrium,V,=Ventricle,D,=Dual(A+V),O,=None,T,=Triggered,I,=Inhibited,D,=Dual(T+I),O,=None,P,=Simpleprogram-mable,M,=Multi-program-mable,C,=Communi-cating,R,=Rate modulation,O,=None,P,=Pacing(anti-tachyarrhyth-mia),S,=Shock,D,=Dual(P+S),Manufac-turersdesignation only:,S,=Single(A or V),S,=Single(A or V),Note:Positions I through III are used exclusively for antibradyarrhythmia function.,The 1987 NASPE/BPEG Generic(N,The NASPE/BPEG Generic(NBG)Pacemaker Code,(Revised 2000),Position,I,II,III,IV,V,Category:,Chamber(s)paced,Chamber(s)sensed,Response to sensing,Rate modulation,Multisite pacing,O,=None,A,=Atrium,V,=Ventricle,D,=Dual(A+V),O,=None,A,=Atrium,V,=Ventricle,D,=Dual(A+V),O,=None,T,=Triggered,I,=Inhibited,D,=Dual(T+I),O,=None,R,=Rate modulation,O,=None,A,=Atrium,V,=Ventricle,D,=Dual(A+V),Mfrdesignation only:,S,=Single(A or V),S,=Single(A or V),The NASPE/BPEG Generic(NBG)P,起搏器分类,非同步起搏器,同步起搏器,P,波同步,R,波同步,顺序起搏器,程控型起搏器,单腔起搏器,双腔起搏器,临时起搏器(体外携带式),永久起搏器(体内埋藏式),起搏器分类非同步起搏器同步起搏器P波同步R波同步顺序起搏器程,起搏治疗适应征,(临时起搏器),起搏时间在,4,周以内,急性心肌炎引起的,度、,度房室传导阻滞并阿斯综合征发作,药物治疗无效者,急性心肌梗死并高度或完全性房室传导阻滞致心动过缓,药物中毒,电解质紊乱所致心脏阻滞,心脏手术后可能系水肿、炎症所致的完全性房室传导阻滞,有高度房室传导阻滞或窦房结功能不全患者,外科手术期间保护性应用,起搏治疗适应征(临时起搏器)起搏时间在4周以内,起搏治疗适应征,(永久起搏器),伴有症状的病态窦房结综合征,完全性房室传导阻滞伴阿斯综合征,双束支或三束支传导阻滞,症状明显者,手术损伤传导系统引起不可逆性房室传导阻滞,药物治疗无效、反复发作的快速性心律失常,顽固性快速心律失常,三腔起搏器治疗扩张型心肌病充血性心衰,起搏治疗适应征(永久起搏器)伴有症状的病态窦房结综合征,起搏器植入方法,经静脉心内膜起搏,静脉外起搏法,体表胸壁起搏,经胸壁穿刺心内膜起搏,食管心脏起搏,心外膜起搏,起搏器植入方法经静脉心内膜起搏,现用起搏器,Medtronic 5348,单腔临时起搏器,Osykpa,PACE 101H,现用起搏器Medtronic 5348 单腔临时起搏器Osy,Medtronic 5348,安全特性,系统自检,低电量提示(,24h,),替换电池时可连续操作,80ppm 10mA 15,秒,可,颠倒,的电池电极,受保护的控制面板及导线接口,安全的关机操作,Medtronic 5348 安全特性系统自检,Medtronic 5348,安全特性,快速心房起搏处的提醒标志,频率和灵敏度拨盘上的高亮标记和拨动限制,抗击,360w,s,的除颤能量,静电保护,在电磁环境中保证受干扰程度最小,安全的中继线,Medtronic 5348 安全特性快速心房起搏处的提醒标,Medtronic 5348,性能参数,Modes,:,VVI,,,VOO,,,AAI,,,AOO,Basic Pacing Rates,:,30,180 ppm continuously adjustable,Rapid Atrial Pacing Rates,:,80,380 ppm,(,5 ppm increments,),380,540 ppm,(,10 ppm increments,),540,800 ppm,(,20 ppm increments,),Output Amplitude,:,0.1,20 mAcontinuously adjustable,Pulse Width,:,1.8 ms,Medtronic 5348 性能参数Modes:VVI,,Medtronic 5348,性能参数,Sensitivity,:,0.5,20 mVcontinuously adjustable,,,ASYNC,Refractory,:,250 ms,Dimensions,:,18.8 x 6.1 x 4.1 cm(7.4 x 2.4 x 1.6 inches)283 gm(10 oz.)with battery,Battery Type,:,Standard 9V,,,Alkaline or Lithium,Battery Life at nominal settings and typical conditions,:,Alkaline,:,300 hoursLithium,:,650 hours,Medtronic 5348 性能参数Sensitivity,心外_临时起搏器课件,现用起搏器,Medtronic 5388,双腔临时起搏器,现用起搏器Medtronic 5388 双腔临时起搏器,Medtronic 5388,性能参数,Modes:DDD,DDI,DVI,DOO,AAI,AOO,VVI,VOO,Base Pacing Rate:30-200 ppm,Upper Rate:80-230 ppm,Rapid Atrial Pacing Rate:80-800 ppm,Output Amplitude Atrial:0.1-20mA,Ventricular:0.1-25 mA,Pulse Width Atrial:1.0 msVentricular:1.5 ms,Medtronic 5388 性能参数Modes:DDD,Medtronic 5388,性能参数,Sensitivity Atrial:0.4-10 mV,async.Ventricular:0.8-20 mV,async.,A-V Interval:20-300 ms,Refractory Period Atrial:150-500 ms Ventricular:250 ms,Ventricular Blanking Pace:125 ms Sense:75 ms,Dimensions 21.1 x 8.1 x 3.6 cm(8.3 x 3.2 x 1.4 in.)510 g(18 oz.)with battery,Battery Type:Standard 9 V,Alkaline or Lithium Battery Life Alkaline:9 days typical Lithium:16 days typical,Medtronic 5388 性能参数Sensitivity,起搏器参数调节,成人:,90100ppm,婴幼儿:,120,140ppm,起搏频率设定,儿童:,100,120ppm,起搏器参数调节成人:90100ppm婴幼儿:120140,起搏器参数调节,起搏阈值:每次都能引起心脏起搏的,最小,电压或电流。,将电压和电流逐渐降低使起搏心电图有漏搏,再增大电压和电流致出现,连续有效,起搏的电压和电流即为起搏阈值。,一般起始阈值:电压,0.5V,,电流,0.7,1.0mA,设定工作输出应为阈值的,2,倍,电压,1.0V,,电流,1.5mA,*,心脏外科监护,:起搏阈值,3,5mA,或,1.5,3V,,设定电压,3,6V,起搏器参数调节起搏阈值:每次都能引起心脏起搏的最小电压或电流,起搏器参数调节,感知灵敏度:感知过高会将,T,波误感为,P,波或,R,波,导致起搏脉冲受抑制而不起搏;感知过低则不能识别,P,波或,R,波,发生竞争心律。,一般设定值:心房,0.5,1.0mV,心室,1.5,2.5mV,起搏器参数调节感知灵敏度:感知过高会将T波误感为P波或R波,,起搏器常见并发症,起搏阈值增高,电极移位脱落,出血,感染,起搏器常见并发症起搏阈值增高,心外_临时起搏器课件,A V I,A V I,P V A R P,P V A R P,心外_临时起搏器课件,起搏不良,感知不良,起搏不良感知不良,心外_临时起搏器课件,心外_临时起搏器课件,起搏器以什么模式工作?,起搏器三项参数如何?,起搏器是否缺电?,起搏器导线连接是否正常?,起搏心电图有无异常?,起搏器以什么模式工作?,Thank you for your attention!,Thank you for your attention!,
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