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Morphological description and clinical implications of myocardial bridges: an anatomical study in Colombians

Luis Ernesto Ballesteros Acunã1, Luis Miguel Ramírez Aristeguieta, Saldarriaga Bladimir Tellez

  • 1Universidad Industrial de Santander, Calle 45 No. 33-17, Bucaramanga, Colômbia. lballest56@yahoo.es

Arquivos Brasileiros De Cardiologia
|July 1, 2009
PubMed

Insights

Myocardial bridges, a common vascular heart variation, were found in 40.3% of autopsy hearts. Their presence, particularly with a third coronary artery, warrants clinical consideration.

Area of Science:

  • Cardiovascular Anatomy
  • Pathology

Background:

  • Myocardial bridges are a debated vascular heart variation.
  • They can cause intermittent or enduring reduction of the arterial lumen, potentially leading to ischemia.

Purpose of the Study:

  • To investigate the prevalence and characteristics of myocardial bridges.
  • To explore associations between myocardial bridges and other coronary artery variations.

Main Methods:

  • Studied 154 fresh autopsy hearts.
  • Injected coronary arteries with synthetic resin and cleaned pericardial fat.

Main Results:

  • Observed 92 myocardial bridges in 62 hearts (40.3%).
  • Most bridges were on the anterior interventricular artery; average length was 19.9 mm.
  • A third coronary artery was present in 29.8% of hearts, with a higher frequency of myocardial bridges noted in these cases.

Conclusions:

  • Myocardial bridges are a frequent finding with significant anatomical variations.
  • Clinical importance of these variations, including arterial distribution and implications, must be considered.
Abstract

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