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[A new sock and snap electrode for epicardial mapping].

T Iwa¹, T Misaki, M Tsubota

¹First Department of Surgery, Kanazawa University School of Medicine.

Kyobu Geka. the Japanese Journal of Thoracic Surgery

|June 1, 1990

Summary

A novel electrode sock with 87 snap electrodes enables precise epicardial mapping during anti-arrhythmic surgery. This technology aids in locating arrhythmia sources, improving surgical outcomes for conditions like Wolff-Parkinson-White syndrome.

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Area of Science:

Cardiovascular Surgery
Biomedical Engineering
Electrophysiology

Background:

Accurate localization of arrhythmia sources is critical for successful anti-arrhythmic surgery.
Existing methods for epicardial mapping can be complex or invasive.

Observation:

A new electrode sock was developed using Presnet tubular dressing material with 87 gold snap electrodes.
The electrode sites were 1.0 mm in diameter, spaced 1.5 mm apart, and connected via steel wire.
The device was tested in 7 patients undergoing surgery for Wolff-Parkinson-White syndrome and ventricular tachycardia.

Findings:

The Sock and Snap electrode achieved satisfactory epicardial contact in all patients.
No significant hemodynamic changes were observed during electrode placement.

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Rapid epicardial mapping was successfully performed using a computer interface.

Implications:

This novel electrode system offers a practical and effective tool for intraoperative epicardial mapping.
It facilitates precise identification of arrhythmia origins, potentially enhancing surgical success rates.
The technology may lead to improved patient outcomes in complex cardiac arrhythmia surgeries.