An artificial atrial pacemaker stimulates the atria to generate a rhythm. The most common type is AAI, where the atria are sensed to detect if there is an adequate intrinsic rhythm and pacing is only delivered if required. This causes a pacemaker spike before the p wave.
- Thaler, MS (2018) - The Only EKG Book You'll Ever Need, 9th edn, Lippincott Williams and Wilkins
- Wagner, GS and Strauss, DG (2013) - Marriott's Practical Electrocardiography, 12th edn, LWW
- Goldberger, A (2006) - Clinical Electrocardiography: A Simplified Approach, 9th edn, Elsevier
- Michele Kunz (2009) - EKG Training: Watching and Interpreting the Defibrillator Monitor, (Accessed: 06/09/2019)
- Simple Nursing (2019) - EKG Pacemakers with Nurse Blake, (Accessed: 07/09/2019)
This ECG is from a man in his 50s who presented with chest pain on a background of previous CABG and dual chamber pacemaker. This was the repeat ECG post intervention.
This ECG shows atrial pacing with resolved ST elevation but T wave inversion in inferior leads and upright T wave in aVL. The cause was an inferior and right ventricular MI.