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Right ventricular false tendons, a cadaveric approach.

Marios Loukas1, Christopher T Wartmann, R Shane Tubbs

  • 1Department of Anatomical Sciences, School of Medicine, St George's University, Grenada, West Indies. edsg2000@yahoo.com

Surgical and Radiologic Anatomy : SRA
|February 20, 2008
PubMed
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Right ventricular false tendons (RFTs) are common cardiac structures. Some RFTs contain conduction tissue fibers, potentially contributing to arrhythmias.

Area of Science:

  • Cardiovascular Anatomy
  • Cardiac Electrophysiology

Background:

  • Left ventricular false tendons (LFTs) are well-documented.
  • Right ventricular false tendons (RFTs) anatomy and function remain largely unexplored.

Purpose of the Study:

  • To comprehensively describe the morphology, topography, and morphometry of RFTs.
  • To investigate the histological composition of RFTs, particularly the presence of conduction tissue.

Main Methods:

  • Gross anatomical examination of 100 human heart specimens.
  • Classification of identified RFTs into five types based on location.
  • Histological analysis (Masson trichrome, PAS) of RFTs for tissue composition.

Main Results:

  • 35% of specimens contained RFTs, classified into five types.

Related Experiment Videos

  • Mean RFT length was 18 mm, mean diameter 1.4 mm.
  • 41.6% of RFTs harbored conduction tissue fibers, primarily in Types I, III, and IV.

    • Conclusions:

    • RFTs are prevalent and exhibit diverse anatomical variations.
    • The presence of conduction tissue within RFTs suggests a potential role in cardiac arrhythmias.
    • Further research is warranted to elucidate the electrophysiological significance of RFTs.