不应期

应用BL-310生物机能实验系统测定骨骼肌的绝对不应期

Measurement of the absolute refractory period of skeletal muscles by BL-310 biological and functional experimental system

奥丹色酮对蛙心室不应期的影响

Effect of Ondansetron on Ventricular Refractory Period in Frog Heart

且随St强度的增加，不应期延长量增加。

Increase of St voltage strength was followed by increased prolongation value of atrial refractory period .

C组，慢径消融后其快径前传功能不应期和有效不应期缩短不明显，随访期间有5例复发心动过速。

C group , function refractory period and effective refractory period not obviously shortened after slow pathway ablation , tachycardia for 5 patients while following up .

结果：减小左室后负荷，可使St法测定的心室不应期延长（P＜0.05，P＜0.01）；

RESULTS : Reducing left ventricular afterload pro - longed ventricular refractory period measured by St method ( P 0.05 , P 0.01 ) .

结论：Rh具有延长兔心室不应期的作用。

CONCLUSIONS : That Rh wight have effect of prolongating ventricular refractory period .

有效不应期（ERP）先缩短而后延长。

The effective refractory period ( ERP ) was shortened by F at early stage but prolonged at a later time .

结果心房间传导通道的阻断未使心房不应期和不应期离散度明显改变，但使心房间传导时间明显延长，体表心电图P波间期延长（P<0.05）。

Results The atrial effective refractory periods and their dispersions were not changed significantly , but the conducting time and P wave duration in ECG were prolonged significantly ( P < 0.05 ) after blockage .

心房、房室结及心室相对不应期、功能不应期及有效不应期（ERP）延长。

The relative refractory period , functional refractory period and effective refractory period ( ERP ) of right atrial , atrioventricular node and right ventricle were increased .

目的研究卡托普利对长期快速起搏实验犬心房有效不应期（ERP）心房电重构的影响。

Objective To investigate the effects of captopril on atrial effective refractory period ( AERP ) and atrial electrical remodeling in canine atrium with long-time rapid pacing .

结果表明MS：①使心房有效不应期和心室有效不应期显著延长，分别为27.1±6.8，20.7±5.2ms，P均＜0.01。

The results indicated that MS increased markedly both atrial and ventricular effective refractory period ( 27.1 ± 6.8 ms , P < 0.01 and 20.7 ± 5.2 ms , P < 0.01 );

在S1－S2间期中加发Ss，只有3／9例，心房相对不应期延长。

When Ss was introduced into S_1-S_2 interval , it caused prolongation of atrial relative period only in 3 / 9 cases .

结果表明槲寄生能加速动作电位复极进程，使ERP/APD比值增加，不应期相对延长，该作用与抑制细胞膜I（si）及增加Ix有关。

It is suggested that Viscum coloratum accelerates the repolarization of fast action potential , increases ERP / APD ratio and prolongs relatively ERP by inhibiting I_ ( si ) and increasing I_x .

CVBD明显延长动作电位的有效不应期（ERP）、增大ERP与APD的比值。

CVB D could markedly prolong the effective refractory period ( ERP ) of action potential , increase the ratio of ERP / APD .

静脉注射胺碘酮300mg，分析胺碘酮治疗前后各部位有效不应期（ERP）和AFCL的变化。

Effective refractory period ( ERP ) and AFCL were measured before and after venous amiodarone injection .

方法对30例患者行食管心房调搏检查，测定三个不同心房BCL下心房、房室传导系统功能和有效不应期，以及静脉注射普罗帕酮后起搏周长对不应期的影响。

Methods Refractory periods of atrioventricular conduction system were determinated at three cycle lengths in 30 patients with supraventricular tachycardiac history by transesophageal atrial pacing .

诱发房颤/持续电刺激12h后测定心房及肺静脉的不应期，与自身窦性心律下的数据相比较发现，均有明显缩短（P<0.05）；

After stimulation 12h , the difference was significant as compared with the data of sinus rhythm ( P > 0.05 ) .

目的：研究阿魏酸钠对家兔心室肌复极及有效不应期（ERP）的影响，探讨其抗心律失常的可能机制。

Objective : The acute effects of sodium ferulate on the prolongation of ventricular repolarization and refractoriness were investigated in rabbit 's right ventricular myocardium in order to study its antiarrhythmic mechanism in vivo .

初步结果表明：在S1－S2间期中加发St，可使心房相对不应期和有效不应期延长；

The primary results indicated : That when St was introduced into S_1-S_2 interval ( refractory period ) it prolonged atrial relative refractory period and effective refractory period .

12h后两下肺静脉与左、右心房相比不应期变化不明显（P>0.05）。

12 hours later the difference was not significant as compared inferior pulmonary veins with left , right atrial ( P > 0.05 ) .

结果：KMA、Pr、KMA+Pr各组均延长窦性心动周期（SCL）、MAP复极达50%时程并增加心室有效不应期（VERP）；

Results : KMA , Pr and KMA + Pr prolonged SCL , MAPD 50 and increased ventricular effective refractory period ( VERP ) .

本文研究了不同月龄Wistar大鼠坐骨神经、尾神经传导速度、动作电位幅度、时程及绝对不应期的变化。研究发现。

The changes of conduction velocities , amplitudes , durations and absolute refractory periods of the action potentials were studied in the sciatic and caudal nerves of Wistar rats in different age .

医学生艾森克个性特征测查分析在R波检测中，采用了可变阈值、不应期、Lipschitz指数判据等策略，极大地提高了波形检测正确率。

In the examination of R wave , several strategies such as volatile thresholds , disapprobatory interval , and Lipschitz exponent so on , were used for increasing the correctness of ECG characteristic examination .

表明消炎痛能延长SNRT和房室结不应期。

It suggests that indomethacin can prolong the SNRT and refractory period of atrioventricular node .

研究卡维地洛（Car）对陈旧性心肌梗死（OMI）心室梗死边缘带有效不应期（ERP）及钠电流（INa）的影响。

To investigate effects of carvedilol on the effective refractory period ( ERP ) and sodium current of ventricular infarction border zone ( IBZ ) in rabbit models of old myocardial infarction ( OMI ) .

离体实验，发现SPD能抑制豚鼠乳头肌的收缩性，延长功能不应期，降低自律性，而对其兴奋性则无明显影响。

It inhibited the contractility , prolonged the functional refractory period and decreased the automaticity significantly of the isolated guinea pig papillary muscles , but no significant effect on excitability .

方法对12只犬心房间Bachmann速和冠状窦肌束行射频消融，并对阻断前后心房间传导时间、心房不应期，以及P波时限进行测量对比。

Methods The atrial effective refractory periods , P wave duration and the conductive times between atria were measured and compared before and after the blockage of the Bachmann Bundle and coronary sinus fascicle in 12 dogs .

结论：Mel增强豚鼠乳头状肌收缩性和自律性，缩短不应期，降低兴奋性，缩短APD，减小APA和RP。

CONCLUSION : Mel increased the contractility and automaticity of papillary muscles , shortened the FRP , decreased the excitability , shortened the APD , and decreased APA and RP of AP .

目的阐明房室结折返性心动过速（AVNRT）时希-浦系统不应期的变化及可能机制。

Objective To illustrate the adaptation of effective refractory period of His-Purkinje system during atrioventricular nodal reentrant tachycardia ( AVNRT ) and to discuss the possible mechanisms .

结论：Ang可以降低动作电位幅度，静息膜电位及Vmax，缩短动作电位时程及有效不应期，具有致心律失常的作用。

Conclusion : Angiotensin ⅱ decrease amplitude of monophasic action potential , rest membrane potential and Vmax , shorten duration of monophasic action potential and ERP , exert the effect of proarrhythmia .