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The Thebesian valve and its significance for electrophysiologists

M Mazur1, R Tomaszewska, A Pasternak

  • 1Department of Anatomy, Jagiellonian University Medical College, Krakow, Poland. malg.mazur@uj.edu.pl.

Folia Morphologica
|September 23, 2014
PubMed

Insights

The Thebesian valve, located at the coronary sinus ostium, has five distinct types. Understanding its histology is crucial for successful invasive cardiac procedures like arrhythmia ablation.

Area of Science:

  • Cardiovascular Anatomy
  • Cardiac Electrophysiology

Background:

  • Invasive cardiac procedures necessitate coronary sinus (CS) cannulation.
  • Knowledge of the CS ostium, including the Thebesian valve, is vital for procedural success.

Purpose of the Study:

  • To investigate the presence and histological structure of the Thebesian valve.
  • To classify different types of the Thebesian valve.

Main Methods:

  • Examination of 160 autopsied human hearts.
  • Histological analysis of identified Thebesian valves.

Main Results:

  • Five distinct types of the Thebesian valve were identified.
  • All types showed typical histological structure, except the cord-like type.
  • The cord-like type exhibited cells resembling cardiac conduction system tissue.

Conclusions:

  • The Thebesian valve's identification, size, and histology are important for electrophysiologists.
  • This knowledge can improve the safety and efficacy of invasive cardiac procedures.
Abstract

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