Case Report of Figure-8 Tachycardia in the Left Atrium
Author Information
Author(s): Liuba Ioan, Jönsson Anders, Walfridsson Hakan
Primary Institution: Department of Cardiology, Heartcenter, University Hospital Linköping, Linköping, Sweden
Hypothesis
The activation of the tachycardia propagated through a common channel bordered by two lines of double potentials.
Conclusion
The study highlights the challenges in ablating a figure-8 tachycardia in a patient with a history of aortic valve replacement.
Supporting Evidence
- The patient had a history of failed ablation attempts for atrial tachycardia.
- Mapping revealed a figure-8 activation pattern in the left anterior atrial wall.
- Ablation attempts were unsuccessful due to poor catheter stability.
Takeaway
This study talks about a patient who had a special kind of heart rhythm problem after heart surgery, and the doctors had a hard time fixing it.
Methodology
The patient underwent electrophysiologic studies and radiofrequency catheter ablation using a decapolar catheter and a quadripolar irrigated-tip catheter.
Limitations
The catheter stability issues and the anatomical position of the targeted area hindered successful ablation.
Participant Demographics
A 57-year-old man with dilated cardiomyopathy and chronic heart failure.
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