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Ventricular morphology and coronary arterial anatomy in hearts with isometric atrial appendages
H Uemura1, S Y Ho, R H Anderson
1National Heart and Lung Institute, London, England. huemura@hsp.ncvc.go.jp
Insights
Understanding congenital heart variations in visceral heterotaxy is key. This study details anatomical differences in atrial connections and coronary arteries, crucial for surgical planning.
Area of Science:
- Cardiovascular Anatomy
- Congenital Heart Disease
- Surgical Anatomy
Background:
- Visceral heterotaxy presents complex anatomical challenges.
- Precise anatomical knowledge improves surgical outcomes in these patients.
Purpose of the Study:
- To investigate the ventricular mass and coronary arterial supply in visceral heterotaxy.
- To correlate anatomical variations with surgical outcomes.
Main Methods:
- Studied 125 specimens with isomeric right appendages and 58 with isomeric left appendages.
- Analyzed ventricular mass and coronary arterial patterns.
Main Results:
- Common arrangements varied between right and left isomeric appendages.
- Concordant ventriculoarterial connections were more frequent in left appendages (45%) than right (4%).
- Abnormal coronary artery branching frequently accompanied abnormal ventricular architecture.
Conclusions:
- Recognizing these anatomical abnormalities is vital for optimizing surgical strategies.
- Detailed understanding aids in managing patients with visceral heterotaxy.
Background:
Knowledge of the precise anatomy can be advantageous when striving to improve surgical results in patients with visceral heterotaxy.
Methods:
We studied the ventricular mass, and its coronary arterial supply, in 125 specimens with isomeric right and 58 with isomeric left appendages.
Results:
The situation in which each atrium connected to its own ventricle was the most common arrangement in hearts with isomeric left appendages. The pattern with both atriums connecting to the same ventricle was more frequently seen in those with isomeric right appendages. Concordant ventriculoarterial connections were seen in only 4% of cases with isomeric right appendages, but were seen in 45% of those with isomeric left appendages. Abnormal patterns in branching of the coronary arteries were commonly associated with abnormal ventricular architecture. The morphologically right or left ventricular arteries were frequently lacking in those hearts with a dominant ventricle and a rudimentary and incomplete ventricle. A solitary coronary artery was seen in 13%.
Conclusions:
Recognition of these abnormalities is of clinical importance if optimal surgical strategies are to be established for patients with visceral heterotaxy.