Key result
A combined epicardial and endocardial ablation approach using an epicardial balloon enabled sinus node modification and phrenic nerve protection in inappropriate sinus tachycardia.
A novel combined epicardial and endocardial ablation approach with an epicardial balloon may allow for safe sinus node modification while protecting the phrenic nerve in resistant cases.
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May offer a feasible option for phrenic protection in resistant IST; hypothesis-generating and requires prospective validation.
This is a case report of inappropriate sinus tachycardia in a patient who had a previous unsuccessful endocardial ablation, which had been limited due to concerns of phrenic nerve injury. The patient required a repeat ablation that utilized a novel combined epicardial and endocardial approach for sinus node modification and simultaneous protection of the phrenic nerve via an epicardial balloon.
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Rubenstein et al. (2008) studied this question. A combined epicardial and endocardial ablation approach using an epicardial balloon enabled sinus node modification and phrenic nerve protection in inappropriate sinus tachycardia.
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