منابع مشابه
Wenckebach periods in posterior inferior division of left bundle.
chospasm and edema of the bronchial wall. The problem of plugs is compounded by the invariably present tachypnea, resulting in respiratory loss of fluids. Dehydration produces tenacious, inspissated plugs, which are difficult to remove via the cough mechanism. Messer et al,1° in a large autopsy series, reported a 97 percent incidence of abnormal bronchial contents (mucous, purulent exudate, or ...
متن کامل[Wenckebach periods of alternate beats].
Wenckebach periods of alternate beats (AW) can be described as a 2:1 atrioventricular (A-V) block in which the conducted P waves show progressive prolongation of the P-R interval of the Wenckebach type. However, while classical Wenckebach periods terminate with a single blocked P wave, AW necessarily ends with (or begins from) two consecutive blocked P waves. Five clinical cases and several exp...
متن کاملWenckebach Periods Associated with High Grade
An electrocardiogram (ECG) of bilateral bundle branch block (BBBB) which may be attributable to a mixture of 2 : 1 and 3: 1 atrioventricular (A-V) block is described. The irregularity of QRS complexes with left bundle branch block (LBBB) pattern during 2: 1 A-V block may be ascribable to "Wenckebach periods ", which might be due either to A-V nodal or His bundle or bundle branch delay. However,...
متن کاملWenckebach periods of alternate beats. Clinical and experimental observations.
Wenckebach periods of alternate beats (AW) can be described as a 2:1 atrioventricular (A-V) block in which the conducted P waves show progressive prolongation of the P-R interval of the Wenckebach type. However, while classical Wenckebach periods terminate with a single blocked P wave, AW necessarily ends with (or begins from) two consecutive blocked P waves. Five clinical cases and several exp...
متن کاملHIS BUNDLE AND BUNDLE BRANCHES/Massing, James References
1. Clark J, Plonsey R: A mathematical evaluation of the core conductor model. Biophys J 6: 95, 1966 2. Weidmann S: The diffusion of radiopotassium across the intercalated disks of mammalian cardiac muscle. J Physiol 187: 323, 1966 3. Sperelakis N, Hoshiko T, Berne RM: Nonsyncytial nature of cardiac muscle: membrane resistance of single cells. Am J Physiol 198: 531, 1960 4. Plonsey R: Bioelectri...
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ژورنال
عنوان ژورنال: Circulation
سال: 1969
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.40.1.79