Results 341 to 350 of about 173,470 (387)
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Re-evaluation of the structure of the atrioventricular node and its connections with the atrium.
Europace, 2020AIMS The anatomic substrates for atrioventricular nodal re-entry remain enigmatic, but require knowledge of the normal arrangement of the inputs and exist from the atrioventricular node.
Robert H. Anderson +4 more
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Atrioventricular Block in an Infant With an Atrioventricular Septal Aneurysm
Pediatric Cardiology, 2011A case of atrioventricular (AV) septal aneurysm presenting in late fetal life with AV block is reported. In the neonatal period, second-degree AV block occurred, which progressed during infancy to complete block. This report includes ante- and postnatal echocardiograms demonstrating the anatomy.
McBrien A, Moran P, Wren C
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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.
Amit M. Vora +2 more
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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 ...
Eric N. Prystowsky +2 more
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Iatrogenic Atrioventricular Block
Cardiac Electrophysiology Clinics, 2021Iatrogenic atrioventricular (AV) block can occur in the context of cardiac surgery, percutaneous transcatheter, or electrophysiologic procedures. In cardiac surgery, patients undergoing aortic and/or mitral valve surgery are at the highest risk for developing perioperative AV block requiring permanent pacemaker implantation.
Edward P. Gerstenfeld +2 more
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Atrioventricular block and problems with atrioventricular conduction
Clinics in Geriatric Medicine, 2002This chapter has summarized briefly the current state of our knowledge on the incidence, etiology, presentation, investigation, and management of patients with AV block. The scope of the material covered has been widened intentionally to include a plethora of AV-conduction abnormalities because of the increases in the understanding of their clinical ...
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ANATOMY OF THE ATRIOVENTRICULAR NODE AND ATRIOVENTRICULAR CONDUCTION SYSTEM
International Journal of Bifurcation and Chaos, 2003The anatomy of the atrioventricular conduction system was first described nearly a hundred years ago. Since then, it has been an occasional subject of controversy mainly through a lack of adherence to the original definitions based on histology. The gross landmarks for locating the atrial component of the conduction system are found in the right ...
Aneel Ansari +4 more
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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
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The American Journal of Emergency Medicine, 2001
Atrioventricular (AV) dissociation is an electrocardiographic syndrome; a descriptive term for a variety of conditions of abnormal cardiac conduction which all feature independent function of the atria and ventricles. AV dissociation can be subclassified as AV dissociation by default (an independent ventricular pacemaker responds to slowing of the ...
R A, Harrigan, A D, Perron, W J, Brady
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Atrioventricular (AV) dissociation is an electrocardiographic syndrome; a descriptive term for a variety of conditions of abnormal cardiac conduction which all feature independent function of the atria and ventricles. AV dissociation can be subclassified as AV dissociation by default (an independent ventricular pacemaker responds to slowing of the ...
R A, Harrigan, A D, Perron, W J, Brady
openaire +2 more sources