Results 211 to 220 of about 77,665 (261)
Some of the next articles are maybe not open access.
Atrioventricular Block and Atrioventricular Dissociation
2004Atrioventricular (AV) block is not only linked to some important electropathophysiologic mechanisms such as conduction slowing and escape rhythm, but also to typical ECG patterns such as Wenckebach period or Mobitz block, and to other potential precursors of complete AV block such as fascicular blocks and their combinations. All in all, AV block in its
openaire +2 more sources
Atrioventricular nodal Reentrant Tachycardia with Atrioventricular Block
Journal of Interventional Cardiac Electrophysiology, 1997Atrioventricular block (AVB) during atrioventricular nodal reentrant tachycardia (AVNRT) has been well documented, although it is not a common phenomenon. The mechanism for the initiation and resolution of AVB during AVNRT have been postulated. However, the site of AVB and its implication on the reentrant circuit in AVNRT is not clear.
A M, Vora, M S, Green, A S, Tang
openaire +2 more sources
Atrioventricular block after reciprocating atrioventricular junctional tachycardia
The American Journal of Cardiology, 1975Short runs of symptomatic atrioventricular (A-V) block occurred after spontaneous cessation of reciprocating A-V junctional tachycardia in a patient with right bundle branch block, normal H-V interval and sinus nodal dysfunction. These episodes were characterized by long (more than 1 sec) P-P intervals during which the A deflections were not followed ...
J M, Aranda +3 more
openaire +2 more sources
Electrocardiography of Atrioventricular Block
Cardiology Clinics, 2021Delayed atrioventricular (AV) conduction most commonly occurs in the AV node, resulting from AH prolongation on an intracardiac electrocardiogram and PR prolongation on a surface electrocardiogram. AV conduction may be blocked in a 2:1 manner, with a normal PR interval and wide QRS suggesting infranodal disease, whereas a prolonged PR interval and ...
Bradley A, Clark, Eric N, Prystowsky
openaire +3 more sources
AACN Advanced Critical Care, 1992
The presentation of atrioventricular block in the critical care setting and the assessment parameters that the critical care nurse may use to aid in the determination of the severity of atrioventricular block are described. The underlying pathophysiology of atrioventricular block is examined to enhance the nurse’s understanding of the rationale for ...
openaire +2 more sources
The presentation of atrioventricular block in the critical care setting and the assessment parameters that the critical care nurse may use to aid in the determination of the severity of atrioventricular block are described. The underlying pathophysiology of atrioventricular block is examined to enhance the nurse’s understanding of the rationale for ...
openaire +2 more sources
Crossed atrioventricular connections
American Heart Journal, 1980Four cases of crossed atrioventricular connections are described. All of them were diagnosed at cardiac catheterization by angiocardiography and one was examined pathologically. Two possessed situs solitus, one with concordant connections and the other with discordant connections; the other had two situs inversus, both of them with concordant ...
F, Attie +7 more
openaire +2 more sources
Anatomy of the Atrioventricular Junction, Atrioventricular Grooves, and Accessory Pathways
Cardiac Electrophysiology Clinics, 2020Accessory pathways that bypass all or part of the normal atrioventricular conduction system traverse the atrioventricular junction. The atrioventricular junction comprises of a limited septal component and much more extensive right and left parietal components.
openaire +2 more sources
Mapping in the atrioventricular junction
Journal of Electrocardiology, 1991Ectopic conduction is defined as the premature exit of the cardiac impulse from the specialized conduction system across a damaged Purkinje-ventricular muscle interface. This anomalous form of atrioventricular (AV) conduction was induced in the dog heart by lidocaine injection of the His bundle-interventricular septum interface and by ischemic damage ...
B J, Scherlag +5 more
openaire +2 more sources
Atrioventricular nodal parasystole∗
The American Journal of Cardiology, 1964Abstract Ten cases of atrioventricular nodal parasystole have been discussed in detail. The variation of the shortest interectopic intervals was noted to be much greater than anticipated. The atrioventricular nodal parasystolic rate was somewhat slower than would be expected in view of the physiologic automaticity of the atrioventricular node; this ...
K Y, CHUNG, T J, WALSH, E, MASSIE
openaire +2 more sources
Lymphatics of the Atrioventricular Valves
Archives of Surgery, 1973The mitral and tricuspid valves of the mammalian heart have been investigated to determine whether lymphatic channels are present in the leaflets. Extracorporeal circulation and atriotomy were used in 32 animal experiments. India ink was injected into the leaflets. The leaflets were examined with light and electron microscopes. A second phase consisted
R R, Bradham, E F, Parker, W B, Greene
openaire +2 more sources