What question did this study set out to answer?

To describe and evaluate an intraoperative electrophysiologic technique for mapping the atrioventricular conduction system to prevent heart block during cardiac defect repair.

December 1, 1970Archives of Surgery

Specialized Cardiac Conduction System

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Why the study?

Does an electrophysiologic technique using atrial pacing and an electrode probe help localize the A-V conduction system during cardiac surgery for congenital anomalies?

Population

18 patients undergoing cardiac surgery for congenital anomalies

Design

Case_series

Authors

GKGerard A. KaiserAmerican Heart Association

Discussion

Member takes

Implication

May aid conduction preservation in complex congenital repairs; leaves open prospective outcome validation.

Key Points

To describe and evaluate an intraoperative electrophysiologic technique for mapping the atrioventricular conduction system to prevent heart block during cardiac defect repair.
Maintained constant antegrade conduction and continuous beat-to-beat monitoring of P-R intervals and QRS configurations using atrial pacing with an electrode plaque.
Mapped the anatomic course of the His bundle and bundle branches with a roving electrode probe to detect characteristic His-spike electrograms.
Evaluated the localization technique in patients undergoing surgical correction of ostium primum atrial septal defects (n=4) and other complex congenital cardiac anomalies (n=14).
Direct electrogram recording successfully identified the localized path of the His bundle and its branches via distinct His spikes during the P-R interval.
The electrophysiologic technique successfully aided surgical navigation and injury avoidance across 18 complex congenital cardiac repairs.

Structured PICO

Does an electrophysiologic technique using atrial pacing and an electrode probe help localize the A-V conduction system during cardiac surgery for congenital anomalies?

Population

18 patients undergoing cardiac surgery for congenital anomalies (4 ostium primum atrial septal defects and 14 other complex congenital anomalies)

Intervention

Electrophysiologic technique utilizing atrial pacing with an electrode plaque and an electrode probe to localize the atrioventricular (A-V) conduction system

Outcome

Localization of the A-V conduction system (His bundle and bundle branches) during surgery

Intraoperative electrophysiologic mapping using atrial pacing and an electrode probe can successfully localize the A-V conduction system to guide complex congenital heart surgery.

Cite This Study

Gerard A. Kaiser (1970) studied this question.

synapsesocial.com/papers/6a82aa540715daaa1f23b5ac https://doi.org/10.1001/archsurg.1970.01340300029006

Topics

Congenital heart disease adults

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Specialized Cardiac Conduction System

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

Specialized Cardiac Conduction System

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

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