Atrial & Ventricular Dysrhythmia

Ahmad Thanin

Objective

Define the characteristics of atrial and ventricular arrhythmia. Relate the ECG features to the relevant physiological processes Develop reasoning skill that will enable you to explain some of the less commonly observed ECG abnormalitiesIdentify potential pathways of care for the person presenting with a variety of ECG changes.

QRS Complex

Normal QRS: less than 3 small boxes ( less than 0.12 seconds), Narrow QRS. Abnormal QRS: more than 3 small boxes (more than 0.12 seconds), Wide QRS.

Normal Sinus Rhythm

Atrial Dysrhythmia

Sinus Tachycardia. Sinus Bradycardia. Junctional Rhythm. SVT. Atrial Flutter. Atrial Fibrillation

Sinus Tachycardia

Sinus Bradycardia

Junctional Rhythm

Characteristics: Narrow QRS always. Absent of P wave, or Inverted P Wave, or Present P Wave but PR Interval less than 3 small boxes (less than 0.12 Seconds. Inverted P Wave comes after QRS.

Junctional Rhythm – Cont.

Absent Inverted

PR Interval less than 0.12 seconds Inverted after QRS

Types of Junctional Rhythms

Junctional •Heart Rate 40 – 60 Beat per minute.

Accelerated Junctional •Heart Rate 60 – 100 Beat per minute

Junctional Tachycardia •Heart Rate above 100 Beat per minute

Supra Ventricular Tachycardia – SVT

Atrial Flutter – SAW Teeth

Atrial Fibrillation

Ventricular Dysrhythmia

Idioventricular Rhythms Ventricular Tachycardia. Ventricular fibrillation. Torsade's DE points

Idioventricular RhythmsCharacteristics:

Wide QRS always. Absent of P wave always. Heart Rate 20 – 40 BPM

Ventricular Tachycardia

Always check pulse with this Rhythm

Ventricular Fibrillation

Don’t Delay SHOCK Don’t waste the time for checking Pulse. Pulse always absent

Torsade's DE points

Time for Questions and Discussion

Thank You