Cardiovascular

Heart Block (Third Degree)

Complete block of atrial-to-ventricular conduction — needs pacemaker.

Overview

Complete block of atrial-to-ventricular conduction — needs pacemaker.

Also known as: complete heart block, 3rd degree av block

In-depth guidance

A structured clinical overview of Heart Block (Third Degree) — symptoms, red flags, causes, and care pathways — is being prepared by our clinical reviewers. In the meantime:

⚠ When to seek urgent care

Sudden severe symptoms, breathing difficulty, chest pain, confusion, fainting, severe bleeding, or any rapidly worsening illness need urgent assessment. Call your local emergency number.