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- The DAR and the dispersion of local activation time (AT diff) and that of the action potential duration (APD diff) were measured and calculated. 测量、计算心房复极离散度(RTd)及动作电位时限和局部冲动时间的离散度 (APDd、ATd)。
- Results Cardiomyoctes in rabbit RVOT showed marked dispersion in action potential (AP) repolarization and action potential duration(APD). 结果RVOT心肌细胞动作电位表现出复极离散度较RV大。
- Based on the adjusted model the effects of different defibrillation waveforms on cell action potential duration (APD) were studied. 结果双相电场脉冲比单相脉冲更多地扩展细胞的动作电位时程；
- Themost prominent effect of sotalol was the prolongation of action potential duration(APD)and effective refractory perid(ERP)of the SAN,AVN,atrial and His-bun-dle cells. 标本被驱动时,心房SAN 逆传时间与房-室传导时间均被 Sot 延长。
- Action potential duration(APD) at 30%,50% and 90% repolarization(APD30,APD50,APD90),effective refractory period(ERP),amplitudes of action potential and resting membrane potential were obtained. 用充满3mol/L氧化钾的玻璃微电极插入心房肌,记录动作电位。 观察复极30%25、50%25、90%25时的动作电位时程(APD30、APD50、APD90)、有效不应期(ERP)、动作电位振幅(APA)、静息电位(RMP)。
- PVC had longer action potential duration (APD) than LAC, and therefore a second plateau response could be induced easily, suggesting a strong tendency of early afterdepolarization (EAD) genesis in PVC. 发现PVC动作电位时程(action potential duration, APD)较LAC的明显延长,并可以诱发出第二平台反应。
- Effects of Bepridil on Action Potential Duration and Main Ion Currents Involved in the Depolarization and Repolarization of Isolated Guinea Pig Ventricular Myocytes. Bepridil对豚鼠心室肌细胞动作电位时程和跨膜离子流的作用。
- At the single-cell leel, upregulation of the L-type Ca2+ current ICa,L steepened restitution cures of action potential duration and conduction elocity compared with the control. 和对照组相比，在单个细胞水平，上调L-型钙通道的离子流可以导致动作电位持续时间和传导速率的重建曲线变的陡峭。
- The results indicated that in normal, ventricular muscle, inosine prolonged the action potential duration [APD_(10), APD_(50)]，especially at the early phase of repolarization. 结果表明肌苷使正常心肌细胞动作电位时间[APD_(10)、APD_(50)]延长。
- It was shown that EBP could prolong APD_(20) and APD_(90) (at 20% and 90% of repolarization in action potential duration)markedly, while over shoot(OS), resting potential(RP), amplitude of the action Potential(APA)and V_(max) were not affected. 结果表明EBP能明显延长APD_(20)和APD_(90)。 但对动作电位幅度(APA)静息电位(RP),超射(OS)和零期最大上升速率(V_(max))无显著影响。
- Coronary occlusion resulted in significant diminution in amplitude of action potential (APA) and maximal depolarization rate of phase O (dv/dt), and decrease in action potential duration at 50% repolarization (APD_(50)) and 90% repolarization (APD_(90)). 阻断冠脉引起动作电位振幅(APA)和零期最大除极速度(dv/dt)明显降低以及复极50%25时程(APD_(50))和复极90%25时程(APD_(90))明显缩短。
- Results Antiarrhythmic effect of COE may be related to its prolongation of action potential duration, increase of the absolute value of resting potential and a decrease of autonomy of sinus node. 结果山茱萸提取液抗心律失常作用可能与延长心肌动作电位、增大静息电位绝对值和降低窦房结自律性有关。其抗心律失常的有效部位为总有机酸和一种未知的微量成分。
- At the single-cell level, upregulation of the L-type Ca2+ current ICa,L steepened restitution curves of action potential duration and conduction velocity compared with the control. 和对照组相比，在单个细胞水平，上调L-型钙通道的离子流可以导致动作电位持续时间和传导速率的重建曲线变的陡峭。
- DST markedly shortened the action potential duration (APD ) in dose-dependency (r=-0. 987); DST显著缩短豚鼠心肌单细胞的动作电位时程（APD），呈剂量依赖关系（r=-0.;987）;
- ventricular muscle field action potential duration 心室肌场电化时程
- action potential duration restitution 动作电位时程恢复
- monophasic action potential duration 单相动作电位
- action potential duration, APD 动作电位时程
- isoproterenol-induced shortening of action potential duration 异丙肾上腺素引起动作电位时间缩短
- Results: 1) E2 or P prolonded AP duration (APD20, APD50, APD90 and APD), RPT and DPT, slowed down the maximal rate of rise of phase 0(Vmax), decreased the action potential amplitude(APA). 结果:1)E_2与P单独作用均可使家兔窦房结细胞动作电位时程(APD_(20)、APD_(50)、APD_(90)、APD)延长,动作电位幅度(APA)及0期最大除极速率(V_(max))明显降低,0期除极时间(DPT)延长。
