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Epicardial Sinus Node Modification Using 5% Dextrose Insulation to Prevent Phrenic Nerve Injury: A Case Report

Mehmet Özgeyik1, Ramazan Anıl Eşki2, Özge Turgay Yıldırım1

  • 1Ministry of Health Eskisehir City Hospital, Eskişehir, Turkey.

Pacing and Clinical Electrophysiology : PACE
|February 18, 2026
PubMed
Summary

A novel technique using 5% dextrose in water (D5W) as an epicardial insulating medium successfully protected the phrenic nerve during sinus node modification for inappropriate sinus tachycardia (IST). This approach enabled safe radiofrequency delivery, reducing phrenic nerve injury risk.

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