172 Extreme inter-atrial conduction slowing without Bachman's bundle block
نویسندگان
چکیده
منابع مشابه
Atrial ventricular conduction system in left bundle-branch block with normal QRS axis.
In nine patients with left bundle-branch block (LBBB), normal QRS axis, and normal P-R interval, atrial, His bundle, and ventricular electrograms were recorded. The extrastimulus method was utilized to determine the relative refractoriness of the various components of the atrioventricular conducting system. The functional refractory period (FRP) of the A-V node was normal in all but one patient...
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Alternate patterns of ventricular excitation may occur with any type of supraventricular bigeminy. It is a physiologic phenomenon that depends on the rate dependency of bundle-branch refractoriness and the linking phenomenon related to concealed retrograde penetration of aberrantly conducted beats into their own blocked bundle branch [1–3]. An alternate pattern of ventricular activation can onl...
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His bundle (H) electrograms were recorded in three patients with Mobitz type II block and narrow QRS. Block was secondary to digitalis intoxication in one patient. In the second patient, who had first-degree A-V block, type II block occurred with atrial pacing at a slightly increased heart rate. In the third patient, who had corrected transposition of the great vessels, type II block occurred s...
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Right atrial thrombi may be detected in patients with either atrial fibrillation or patent foramen ovale (PFO). We herein describe a rare case of right atrial thrombus which occurred on an apparently intact intra-atrial septum. A 48-year old woman was admitted to our hospital because of septic multiple systemic (coronary and cerebral) emboli. ECG revealed ST elevation and a Q wave in V2-6. Brai...
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The authors thank Dr. N.H.G. Holford, assistant professor of Medicine, Pharmacy and Pharmacological Chemistry, University of California, San Francisco, for his constructive review of this manuscript, and Dr. S. Lee, Director, Hematology Department, Cedars-Sinai Medical Center. In addition, we express our gratitude to Joye Nunn for secretarial assistance, to Lance Laforteza for graphics, and to ...
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ژورنال
عنوان ژورنال: Archives of Cardiovascular Diseases Supplements
سال: 2011
ISSN: 1878-6480
DOI: 10.1016/s1878-6480(11)70174-4