Paroxysmal AV block overview: Difference between revisions

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__NOTOC__
{{Paroxysmal AV block}}
{{CMG}}; {{AE}}{{Akash}}
==Overview==
*Paroxysmal AV block is defined as a delayed escape rhythm which repetitively blocks conduction from the atria to the ventricles, thereby causing [[syncope]], conduction defects such as [[asystole]] and [[sudden cardiac death]].
*Paroxysmal AV block is defined as a delayed escape rhythm which repetitively blocks conduction from the atria to the ventricles, thereby causing [[syncope]], conduction defects such as [[asystole]] and [[sudden cardiac death]].
*It may or may not be associated with Phase 3 or Phase 4 conduction defects.  
*It may or may not be associated with Phase 3 or Phase 4 conduction defects.  
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*Insufficient data is available regarding the exact [[etiology]], diagnostic study of choice and treatment of paroxysmal AV blocks.
*Insufficient data is available regarding the exact [[etiology]], diagnostic study of choice and treatment of paroxysmal AV blocks.
*It can be thought of more as a disease of exclusion. However,efforts must be made to have a standardized approach to such patients.
*It can be thought of more as a disease of exclusion. However,efforts must be made to have a standardized approach to such patients.
==Historical Perspective==
==Classification==
==Pathophysiology==
==Causes==
==Differentiating Xyz from Other Diseases==
==Epidemiology and Demographics==
==Risk Factors==
==Screening==
==Natural History, Complications, and Prognosis==
==Diagnosis==
===Diagnostic Study of Choice===
===History and Symptoms===
===Physical Examination===
===Laboratory Findings===
===Electrocardiogram===
===X-ray===
===Echocardiography and Ultrasound===
===CT scan===
===MRI===
===Other Imaging Findings===
===Other Diagnostic Studies===
==Treatment==
===Medical Therapy===
=== Interventions ===
===Surgery===
===Primary Prevention===
===Secondary Prevention===
==References==
{{reflist|2}}
==References==
{{Reflist|2}}
[[Category:Cardiology]]
[[Category:Cardiovascular diseases]]
[[Category:Arrythmia]]
[[Category:Emergency medicine]]
[[Category:Disease]]
[[Category:Up-To-Date]]
[[Category:Up-To-Date cardiology]]
{{WH}}
{{WS}}

Revision as of 18:14, 25 June 2020

  • Paroxysmal AV block is defined as a delayed escape rhythm which repetitively blocks conduction from the atria to the ventricles, thereby causing syncope, conduction defects such as asystole and sudden cardiac death.
  • It may or may not be associated with Phase 3 or Phase 4 conduction defects.
  • It may be due to an increased vagal tone, innately low adenosine levels or an intrinsic conduction defect, all of which lead to different ECG presentations.
  • Insufficient data is available regarding the exact etiology, diagnostic study of choice and treatment of paroxysmal AV blocks.
  • It can be thought of more as a disease of exclusion. However,efforts must be made to have a standardized approach to such patients.
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