The Correlation Between Ventricular Shape and Branching Pattern of its Outgoing Great Artery and Their Functional Implications
Date Issued
2001-12-31
Date
2001-12-31
Author(s)
邱英世
DOI
892314B002283
Abstract
Throughout the surgical history to repair
transposition of the great arteries in the past
half-century, human has learned that the right
ventricle cannot replace the left ventricle as a
systemic pumping chamber. The shape of
normal right ventricle is totally different from
that of left ventricle, trapezoid of the former
versus pear-form of the latter. Yet the
functional implications of the shape were
seldom explained in the past. The pulmonary
trunk branches early into right and left
pulmonary arteries. While the relatively
late-branching of the aorta dictates its
pumping chamber to become a pear-shaped
left ventricle. We carried out a magnetic
resonance imaging study on 10 normal
persons, to see whether left lower vertex of
the trapezoid right ventricle sends its blood
into lower right pulmonary artery, while
relatively higher right lower vertex into
higher left pulmonary artery. The results
showed the shape of ventricles is related with
its outgoing arterial branching pattern. This
inference is helpful to judge those patients
with congenitally corrected transposition is
justified to undergo double switch operation
according to the shape of ventricles, i.e. those
with incomplete transition.
Subjects
trapezoid right ventricle
pear-form
left ventricle
left ventricle
early branching
pulmonary trunk
pulmonary trunk
relatively
late-branching aorta
late-branching aorta
and complete
transposition of the great arteries
transposition of the great arteries
Publisher
臺北市：國立臺灣大學醫學院外科
Type
report
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