JVP: Cannon Waves

Key points

• Cannon waves: right atrium contracts against a closed tricuspid valve.
• Regular cannon waves: ventricular tachycardia (1:1 VA conduction) · AVNRT.
• Irregular cannon waves: complete heart block.

Decision points in this pathway

• Regular or irregular?

The full step-by-step algorithm, including what to do at each branch, opens in the app for approved members.