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[Comparative study of the coronary circulation pattern of anatomic specimens and surgical patients]
R Falci Júnior1, M H Guimarães, A P Santos
1Laboratório Anatômico Cirúrgica, Instituto do Coração da Faculdade de Medicina, Universidade de São Paulo.
Insights
This study compared coronary artery anatomy in healthy individuals and those with symptomatic ischemic heart disease. No significant differences were found in coronary circulation patterns between the groups, suggesting anatomy may not be a primary driver of ischemic disease.
Area of Science:
- Cardiovascular Anatomy
- Interventional Cardiology
- Ischemic Heart Disease
Background:
- Advancements in cardiac surgery necessitate a deeper understanding of cardiac anatomy.
- Coronary artery patterns are crucial for diagnosing and treating ischemic heart disease.
Purpose of the Study:
- To compare the anatomical patterns of coronary circulation between normal individuals and those with symptomatic ischemic heart disease.
- To investigate potential anatomical variations that may predispose individuals to coronary artery disease.
Main Methods:
- Group I: 119 anatomical specimens from non-cardiac deaths (epicardiectomy).
- Group II: 150 live patients with symptomatic coronary disease (radiologic study).
- Statistical comparison using Chi-square and Fisher's Exact tests.
Main Results:
- Right coronary predominance: 68% (Group I) vs. 59% (Group II).
- Left coronary predominance: 13% (Group I) vs. 17% (Group II).
- Balanced circulation: 19% (Group I) vs. 24% (Group II).
- Branches crossing crux cordis showed no significant differences between groups.
Conclusions:
- No considerable anatomical differences in coronary artery patterns were identified between healthy individuals and those with symptomatic ischemic heart disease.
- These findings suggest that coronary artery anatomy alone may not be a significant factor in the development of symptomatic ischemic heart disease.
Abstract:
The recent improvement in the cardiac surgery requires a continuous study of the great anatomy of the heart. In this paper, we compare the anatomic pattern of the coronary artery between normal individuals and individuals with sintomatic ischemic disease of the heart. The anatomic pattern of circulation was carried out in two different groups: group I formed by 119 anatomical specimens taken from individuals whose cause of death was non-cardiac and group II formed by 150 live individuals with sintomatic coronary disease, on pre-operative management. In the former was performed epicardiectomy and in the latter, radiologic study. In group I was found 68% of right predominance, 13% of left predominance and 19% of balanced type of circulation. In group II was found 59%, 17% and 24%, respectively. When considering the number of branches that trespass the crux cordis in group I, there was 48% with only one branch, 28% with two, 17% with three, 4% with four and 3% with five branches. Performing the same study for group II, we found 47%, 29%, 14.6%, 3.4% and 6% respectively. Both groups were compared by Chi-square test and by Fisher's Exact test and no considerable difference was pointed out.