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Pacing: a new look. Don't be deceived
Chee Loong Chow1,2, Barveen Abu Baker1, Uwais Mohamed1,2
1Department of Cardiology, Northern Hospital, Epping, Victoria, Australia.
Heart (British Cardiac Society)
|June 30, 2018
Summary
A patient with sinus node dysfunction and left bundle branch block received His bundle pacing. This advanced pacemaker therapy normalized QRS duration, improving cardiac function.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Background:
- A 78-year-old male presented with syncope due to intermittent sinus bradycardia and left bundle branch block (LBBB).
- His baseline ECG showed a QRS width of 160 ms, and echocardiogram revealed a left ventricular ejection fraction of 45%.
Observation:
- The patient underwent pacemaker insertion due to symptomatic sinus node dysfunction and a diseased left bundle.
- Electrode placement was confirmed via fluoroscopy.
Findings:
- Post-pacemaker implantation, the patient's QRS width normalized to 80 ms.
- Device check confirmed excellent function.
Implications:
- His bundle pacing effectively corrected the conduction abnormalities.
- This case highlights His bundle pacing as an effective therapy for patients with bradycardia and LBBB.
- Successful His bundle pacing can improve ventricular synchrony and cardiac function.
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