Myocardial bridges, neither rare nor isolated-Autopsy study.
Ann Anat
; 210: 25-31, 2017 Mar.
Article
en En
| MEDLINE
| ID: mdl-27777114
ABSTRACT
PURPOSE:
Myocardial bridge is a congenital anomaly with a markedly variable reported incidence on autopsy (4.7%-86%), likely related to geographical regions. Our previous retrospective study showed a prevalence of 0.8%, which we doubted to be the true one in the examined sample of the Serbian population. To assess the importance of the phenomenon we conducted a 2-year prospective study at the same institution.METHODS:
Ninety-six cadaver hearts from adult individuals of both genders (51 men, 45 women) who died from natural causes underwent special dissection. Tunneled coronary arteries and myocardium were examined using light microscopy.RESULTS:
A total of 14 myocardial bridges were found in 13 (13.54%) hearts. This anomaly was insignificantly more common in men (13.72% vs. 13.33%, p>0.05). In one heart we noted two myocardial bridges (the left anterior interventricular artery and left marginal artery were overbridged). None of the myocardial bridges had been diagnosed during life. The most common causes of death were cardiac related. Myocardial bridges were located in the following areas left anterior interventricular (50%), left circumflex artery (28.6%), left marginal artery (14.3%), and right coronary artery (7.1%). In 92.3% of cases, the right coronary artery was dominant. The only heart with a balanced-type had two bridges. Most of the myocardial bridges were long and deep. All tunneled coronary arteries, and although surrounded by "coronary cushion," were not protected from atherosclerosis. In 30.8% of hearts with myocardial bridges, we found additional coronary artery anomalies.CONCLUSION:
Myocardial bridges were not rare in the examined sample of the Serbian population and were often associated with other coronary artery anomalies, rendering the carriers at higher risk.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Cardiopatías Congénitas
/
Miocardio
Tipo de estudio:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
País/Región como asunto:
Europa
Idioma:
En
Revista:
Ann Anat
Asunto de la revista:
ANATOMIA
Año:
2017
Tipo del documento:
Article
Pais de publicación:
ALEMANHA
/
ALEMANIA
/
DE
/
DEUSTCHLAND
/
GERMANY