Beyond the pacemaker paradigm: cardioneuroablation for high-degree atrioventricular block in a young athlete

Maria Ana Estevens1, Ana R Sousa1,2, Diogo Cavaco3

  • 1Pediatric Cardiology, Hospital de Santa Cruz, Unidade Local de Saúde Lisboa Ocidental, Portugal.

Insights

Cardioneuroablation successfully treated high-degree atrioventricular block in a young athlete with sickle cell trait. This less invasive procedure normalized heart conduction, offering a promising alternative to long-term pacing.

Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • High-degree atrioventricular block in young individuals presents significant challenges, often necessitating permanent pacing with associated long-term risks.
  • Sickle cell trait, while generally benign, can occasionally be associated with cardiac complications.

Purpose of the Study:

  • To evaluate the efficacy of cardioneuroablation in managing high-degree atrioventricular block in a young patient with sickle cell trait.
  • To explore cardioneuroablation as a less invasive alternative to traditional pacing strategies.

Main Methods:

  • A case study of a 15-year-old male athlete with symptomatic high-degree atrioventricular block and confirmed sickle cell trait.
  • The patient underwent a novel cardioneuroablation procedure to address the atrioventricular conduction abnormality.

Main Results:

  • Following cardioneuroablation, the patient experienced normalization of atrioventricular conduction.
  • A nine-month follow-up revealed no recurrence of arrhythmias or adverse events.
  • The procedure effectively resolved the high-degree atrioventricular block without the need for permanent pacing.

Conclusions:

  • Cardioneuroablation represents a potentially effective and less invasive therapeutic option for young patients with high-degree atrioventricular block.
  • This case highlights the feasibility of cardioneuroablation in a specific patient profile, including those with sickle cell trait.
  • Further research and larger studies are warranted to establish the long-term safety and efficacy of cardioneuroablation in this population.

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