نتایج جستجو برای: atrioventricular node

تعداد نتایج: 181841  

Journal: :Chest 1974
L Gould C V Reddy R F Gomprecht

The effects of phentolamine, 0.3 mg/mm given intravetient and it had no effect on the HQ or HS intervals. This nopsly for 15 minutes, on atrioventricular and intravenrepresents ao improvement in conduction through the tricular conduction were studied in seven cardiac patients atrioventricular node. Phentolamine had no effect on aod in four normal subjects. Recordings were made at atrioventricul...

Journal: :Circulation 1967
D Durrer J P Roos

Epicardial excitation was explored by means of an exploring electrode during operation on a patient with a large atrial septal defect of the secundum type, whose ECG indicated a Wolff-Parkinson-White syndrome of type B. Very early excitation occurred, 10 msec after the end of the P wave, at the right lateral border, near the atrioventricular sulcus, an area which is located a relatively large d...

2017
Weijian Huang Lan Su Shengjie Wu Lei Xu Fangyi Xiao Xiaohong Zhou Kenneth A. Ellenbogen

BACKGROUND Clinical benefits from His bundle pacing (HBP) in heart failure patients with preserved and reduced left ventricular ejection fraction are still inconclusive. This study evaluated clinical outcomes of permanent HBP in atrial fibrillation patients with narrow QRS who underwent atrioventricular node ablation for heart failure symptoms despite rate control by medication. METHODS AND R...

2005
D. DURRER

Epicardial excitation was explored by means of an exploring electrode during operation on a patient with a large atrial septal defect of the secundum type, whose ECG indicated a Wolff-Parkinson-White syndrome of type B. Very early excitation occurred, 10 msec after the end of the P wave, at the right lateral border, near the atrioventricular sulcus, an area which is located a relatively large d...

Journal: :Cardiology journal 2007
Jacek Bednarek Igor Tomala Jacek Lelakowski Jacek Majewski Barbara Małecka

Complete atrioventricular block, second-degree Mobitz type II and first-degree atrioventricular block with right bundle branch block were observed consecutively following successful radiofrequency ablation in close proximity to the sinus node. This resulted in the modification and disappearance of the inappropriate sinus tachycardia that had previously been present. Neither tachycardia nor cond...

Journal: :Journal of the American College of Cardiology 1999
Y Taniguchi S J Yeh M S Wen C C Wang F C Lin D Wu

OBJECTIVES The main objective of this study was to characterize the phenomenon of variation in the P-QRS relation during atrioventricular node reentry tachycardia. BACKGROUND Variation of P-QRS relation during tachycardia has been observed occasionally in atrioventricular node reentry tachycardia. However, the incidence, the characteristics and the mechanisms of this phenomenon have not been ...

Journal: :Prilozi 2010
I Trajkov D Kovacevik N Gjorgov

BACKGROUND Recent anatomical and electrophysiological studies have demonstrated that in the human atrioventricular node there are two main extensions, the rightward and leftward posterior nodal extension (LPNE). The occurrence of eccentric retrograde atrial activation has been demonstrated in several previous reports to be from 6 to 8% in patients with AVNRT. OBJECTIVES The study was performe...

Journal: :Circulation research 1979
P M Vanhoutte E P Coen W J De Ridder T J Verbeuren

Toda N, West TC (1967) Interactions of K*. Na and vagal stimulation in the SA node of the rabbit. Am J Physiol 212: 416-423 Trautwein W, Kuffler SW, Edwards C (1956) Changes in membrane characteristics of heart muscle during inhibition. J Gen Physiol 40: 135-145 Wit AL, Cranefield PF (1974) Effect of verapamil on the sinoatrial and atrioventricular nodes of the rabbit and the mechanism by which...

Journal: :physiology and pharmacology 0
vahid khori golestan cardiovascular research center alimohammad alizadeh cancer research center tehran university of medical sciences tehran ameneh navaiyan golestan cardiovascular research center mohsen nayebpour tehran university of medical sciences tehran mona porabouk golestan cardiovascular research center fakhri badaghabadi golestan cardiovascular research center

introduction: the aim of the present study was to determine direct effects of no modulation on protective electrophysiological properties of atrioventricular node (av node) in the experimental model of af in rabbit. methods: isolated perfused rabbit av nodal preparations were used in two groups. in the first group (n=7), lname (50μm) was applied. in the second group (n=12), different concentrat...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید