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His bundle recordings using epicardial pacing wires: a new technique
Pacing and Clinical Electrophysiology : PACE
|May 1, 1984
Summary
This study introduces a new, simple method for recording His bundle electrograms during open-heart surgery. The technique closely correlates with standard methods, aiding in diagnosing heart conduction disturbances.
Area of Science:
- Cardiology
- Cardiac Electrophysiology
- Surgical Innovation
Background:
- Assessing cardiac conduction system function is crucial for diagnosing heart conditions.
- Standard His bundle electrography requires invasive endocardial catheterization.
- Perioperative conduction disturbances can complicate open-heart surgery outcomes.
Purpose of the Study:
- To evaluate a novel epicardial technique for recording His bundle electrograms.
- To compare the accuracy of the new epicardial method with the standard endocardial technique.
- To determine the utility of epicardial His bundle recording in diagnosing perioperative conduction abnormalities.
Main Methods:
- His bundle electrograms were recorded from the epicardial surface of canine hearts using temporary pacing electrodes.
- Simultaneous recordings were obtained using the standard endocardial catheter technique.
- Analysis focused on comparing AH and HV intervals between the two methods.
Main Results:
- A strong correlation was observed between epicardial and endocardial recordings for both AH intervals (r = 0.93) and HV intervals (r = 0.96).
- The epicardial technique proved simple to perform.
- No additional dissection was required during open-heart surgery.
Conclusions:
- Epicardial His bundle electrography is a reliable and accurate alternative to the standard endocardial technique.
- This method simplifies electrophysiological assessment during open-heart procedures.
- It offers significant value for diagnosing conduction system disturbances in the perioperative period.