عنوان مقاله :
نقش مسير آهسته بعد از سوزاندن مسير سريع گره دهليزي بطني در خواص پايه و وابسته به سرعت گره دهليزي بطني جدا شده خرگوش
عنوان به زبان ديگر :
Role of slow pathway after nodal fast pathway ablation on the basic and rate-dependent properties of the isolated rabbit atrioventricular node
پديد آورندگان :
خوري، وحيد نويسنده مركز تحقيقات قلب و عروق گلستان-دانشكده پزشكي فلسفي-دانشگاه علوم پزشكي گلستان گرگان Khori, V , نايب پور، محسن نويسنده گروه فارماكولوژي دانشكده داروسازي - دانشگاه علوم پزشكي تهران nayebpour, mohsen , ميرعباسي، عباس نويسنده مركز تحقيقات قلب و عروق گلستان-دانشكده پزشكي فلسفي-دانشگاه علوم پزشكي گلستان-گرگان Mirabbasi, A
كليدواژه :
آريتمي , مسير سريع , سوزاندن , گره دهليزي - بطني
چكيده لاتين :
Introduction: The aim of this study was to obtain new insights into the possible relations between functional properties of slow concealed pathway and rate-dependent properties of the AV-node.
Methods: Rate-dependent nodal properties of recovery, facilitation, and fatigue were characterized by stimulation protocols in one group of isolated superfused AV-Nodal rabbits (n=7). Small miniature lesions were made by delivering constant voltage (110 V-100 s) with unipolar silver electrode.
Results: Fast pathway ablation significantly decreased facilitation and had no effect on fatigue and nodal refractoriness. The most important effect of fast pathway ablation was prolongation of the minimum conduction time.
Conclusion: The FP-ablation revealed the presence of the concealed SP. Rate-dependent property of the node is dependent to dynamic interaction between concealed slow with slow pathway. The fast pathway was involved in the mechanism of facilitation.
كلمات كليدي :
#تست#آزمون###امتحان
