This procedure is used to insert a pacemaker, which monitors heart rate and administers signals to help the heart beat at a regular rhythm if necessary. Inserting a pacemaker usually takes place via cardiac catheterization. Symptoms of having an irregular heartbeat include feeling:

• Dizzy
• Lightheaded
• Fatigued
• Confused or disoriented
• Short of breath
• Faint

While this can be treated with medication, a pacemaker implantation is usually recommended to correct an inconsistent heart rate.