Third-Degree Atrioventricular Block (Complete Heart Block) Questions & Answers

Updated: Jul 05, 2018
  • Author: Akanksha Agrawal, MBBS; Chief Editor: Jeffrey N Rottman, MD  more...
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Questions & Answers

Overview

What is third-degree atrioventricular (AV) block?

How is third-degree atrioventricular (AV) block characterized?

What causes third-degree atrioventricular (AV) block?

What is the initial evaluation of third-degree atrioventricular (AV) block?

How is third-degree atrioventricular (AV) block treated?

How does third-degree atrioventricular (AV) block develop?

What is the pathophysiology of second-degree atrioventricular (AV) block?

What is the pathophysiology of first-degree atrioventricular (AV) block?

What is the pathophysiology of third-degree atrioventricular (AV) block?

What is atrioventricular (AV) dissociation?

What causes third-degree atrioventricular (AV) block?

What is congenital third-degree atrioventricular (AV) block?

What causes acquired atrioventricular (AV) block?

Which drugs or toxins are associated with third-degree atrioventricular (AV) block?

What is the role of myocardial infarction in the etiology of third-degree atrioventricular (AV) block?

What are iatrogenic causes of third-degree atrioventricular (AV) block?

What is the prevalence of third-degree atrioventricular (AV) block?

What is the prognosis of third-degree atrioventricular (AV) block?

What are the possible complications of third-degree atrioventricular (AV) block?

What is included in patient education about third-degree atrioventricular (AV) block?

Presentation

What are the signs and symptoms of third-degree atrioventricular (AV) block?

What are the symptoms of third-degree atrioventricular (AV) block in patients with MI?

Which cardiac disease history findings are characteristic of third-degree atrioventricular (AV) block?

Which physical findings are characteristic of third-degree atrioventricular (AV) block?

What are the signs of congestive heart failure in third-degree atrioventricular (AV) block?

What are the signs of hypoperfusion in third-degree atrioventricular (AV) block?

What are the signs of concomitant myocardial ischemia or MI in third-degree atrioventricular (AV) block?

DDX

Which conditions are included in the differential diagnoses of third-degree atrioventricular (AV) block?

What are the differential diagnoses for Third-Degree Atrioventricular Block (Complete Heart Block)?

Workup

What is the role of lab testing in the diagnosis of third-degree atrioventricular (AV) block?

What is the role of chest radiography in the diagnosis of third-degree atrioventricular (AV) block?

What is the role of echocardiography in the diagnosis of third-degree atrioventricular (AV) block?

What is the role of CT scanning in the diagnosis of third-degree atrioventricular (AV) block?

What is the role ECG in the diagnosis of third-degree atrioventricular (AV) block?

Which cardiac studies are performed in the evaluation of third-degree atrioventricular (AV) block?

Treatment

How is third-degree atrioventricular (AV) block treated?

How are cases in which third-degree atrioventricular (AV) block results from a calcium channel blocker managed?

What is included in the emergent management of third-degree atrioventricular (AV) block?

What is the role of transcutaneous pacing in the treatment of third-degree atrioventricular (AV) block?

What is the role of atropine in the treatment of third-degree atrioventricular (AV) block?

What is the role of pacemaker implantation in the treatment of third-degree atrioventricular (AV) block?

What are the ACC-AHA-HRS guidelines for permanent pacemaker implantation in the treatment of atrioventricular (AV) blocks?

According to ACC-AHA-HRS guidelines, when is permanent pacemaker implementation a reasonable treatment of atrioventricular (AV) block?

According to ACC-AHA-HRS guidelines, when should permanent pacemaker implementation be considered for the treatment of atrioventricular (AV) block?

According to ACC-AHA-HRS guidelines, when is permanent pacemaker implementation contraindicated for the treatment of atrioventricular (AV) block?

What are the ACC-AHA-HRS guidelines for permanent pacing for the treatment of chronic bifascicular block?

According to ACC-AHA-HRS guidelines, when is permanent pacemaker implementation contraindicated for the treatment of chronic bifascicular block?

What are the ACC-AHA-HRS guidelines for permanent pacing for the treatment of atrioventricular (AV) block associated with acute MI?

According to ACC-AHA-HRS guidelines, when is permanent ventricular pacing contraindicated in the treatment of atrioventricular (AV) block associated with acute MI?

Which activity modifications are used in the treatment of third-degree atrioventricular (AV) block?

How is third-degree atrioventricular (AV) block prevented?

Which specialist consultations are beneficial to patients with third-degree atrioventricular (AV) block?

What is included in long-term monitoring of third-degree atrioventricular (AV) block?

Medications

Which medications are used in the treatment of third-degree atrioventricular (AV) block?

Which medications in the drug class Antidotes are used in the treatment of Third-Degree Atrioventricular Block (Complete Heart Block)?

Which medications in the drug class Catecholamines are used in the treatment of Third-Degree Atrioventricular Block (Complete Heart Block)?

Which medications in the drug class Sympathomimetic agents or vagolytic agents are used in the treatment of Third-Degree Atrioventricular Block (Complete Heart Block)?