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Bradycardia: Difference between revisions
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=Sinus Node Dysfunction= | ==Sinus Node Dysfunction== | ||
==Sinus Bradycardia== | ===Sinus Bradycardia=== | ||
Sinus bradycardia is a slow sinus rhythm of <60 beats per minute. | Sinus bradycardia is a slow sinus rhythm of <60 beats per minute. | ||
==Sinus Node Exit Block== | ===Sinus Node Exit Block=== | ||
In the case of sinus node exit block, an impulse generated from the sinus node is blocked at one of the exit sides of the sinus node. However impulse formation is not affected, therefore the interval between subsequent beats should be similar to n=x times the P-P interval. | In the case of sinus node exit block, an impulse generated from the sinus node is blocked at one of the exit sides of the sinus node. However impulse formation is not affected, therefore the interval between subsequent beats should be similar to n=x times the P-P interval. | ||
==Sinus Arrest== | ===Sinus Arrest=== | ||
If the sinus node has a problem with impulse formation it is defined as a sinus arrest. There can be the appearance of a irregular rhythm, however sinus P-waves are clearly present. In comparison with the sinus node exit block, there is no relation with a previous P-P interval. | If the sinus node has a problem with impulse formation it is defined as a sinus arrest. There can be the appearance of a irregular rhythm, however sinus P-waves are clearly present. In comparison with the sinus node exit block, there is no relation with a previous P-P interval. | ||
==Sick Sinus Syndrome== | ===Sick Sinus Syndrome=== | ||
Sick sinus syndrome is an denoter of diseases of inappropriate sinus node responses. These encompass for instance an inappropriate response after tachycardia due to overdrive suppression (which can result in long pauses) or an inadequate response to exercise. A common clinical manifestation of disease of the sinus node is the bradycardia-tachycardia syndrome; where alternating bradycardia and tachycardia arise. | Sick sinus syndrome is an denoter of diseases of inappropriate sinus node responses. These encompass for instance an inappropriate response after tachycardia due to overdrive suppression (which can result in long pauses) or an inadequate response to exercise. A common clinical manifestation of disease of the sinus node is the bradycardia-tachycardia syndrome; where alternating bradycardia and tachycardia arise. | ||
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===Third Degree AV Block=== | ===Third Degree AV Block=== | ||
=Ventricular Conduction Block= | ==Ventricular Conduction Block== | ||
==RBBB== | ===RBBB=== | ||
==LBBB== | ===LBBB=== | ||
==LAFB== | ===LAFB=== | ||
==LPFB== | ===LPFB=== | ||
==Bi- or Tri-fasicular block== | ===Bi- or Tri-fasicular block=== | ||