منابع مشابه
Paroxysmal Heart Block in Bundle Branch Block.
When a patient is suspected of having Stokes-Adams disease the electrocardiogram is of critical importance, particularly in respect of the auriculo-ventricular (A-V) conduction time. Should this not be prolonged, the possibility of paroxysmal heart block remains, although the diagnosis of Stokes-Adams disease is uncertain without some degree of heart block recorded graphically. It is not known ...
متن کاملParoxysmal Heart Block and Ventricular Standstill.
In auriculo-ventricular block the degree of impairment of conductivity is often found to be inconstant. Even at a time when the rhythm appears clinically to be normal, however, a cardiogram will usually show prolongation of the P-R interval. Only rarely is the conduction normal between the attacks, and the term " paroxysmal heart block " may then appropriately be applied. Reports of 18 such cas...
متن کاملParoxysmal nodal tachycardia with retrograde heart block.
Paroxysmal nodal tachycardia is not uncommon, and may be divided into three types, in which the rhythm arises in the upper, middle, or lower part of the A-V node. Low nodal tachycardia, which is characterized by an inverted P wave following the R wave at a constant interval, was found in 18 out of 253, and 8 out of 42 cases of paroxysmal tachycardia analysed by the electrocardiograph in the ser...
متن کاملHyperkalemia-induced complete heart block
Background: Potassium, as an extracellular ion, plays an important role in the electrophysiologic function of the myocardium and any change in extracellular concentration of this ion might have a marked impression upon myocyte electrophysiologic gain. High serum potassium levels are thought to impair pulse conduction in Purkinje fibers and ventricles more than that in the Atrio...
متن کاملSyncope and paroxysmal atrioventricular block
Current literature reveals three types of paroxysmal atrioventricular block (AVB) that can cause syncope: Intrinsic paroxysmal atrioventricular block is due to an intrinsic disease of the AV conduction system; this type of "cardiac syncope" is also called Stokes-Adams attack; Extrinsic vagal paroxysmal atrioventricular block is linked to the effect of the parasympathetic nervous system on cardi...
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ژورنال
عنوان ژورنال: BMJ
سال: 1964
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.1.5394.1359