truncus arteriosus


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truncus

 [trung´kus] (L.)
truncus arterio´sus an artery connected with the fetal heart, developing into the aortic and pulmonary arches.
truncus brachiocepha´licus a vessel arising from the aortic arch and giving origin to the right common carotid and right subclavian arteries. Called also innominate artery (see anatomic Table of Arteries in the Appendices).
truncus celi´acus celiac trunk.
truncus encepha´licus brainstem.
truncus pulmona´lis pulmonary trunk.

trun·cus ar·te·ri·o·'sus

the common arterial trunk opening out of both ventricles in the embryo, later destined to be divided into aorta and pulmonary artery by development of the spiral aorticopulmonary septum.

truncus arteriosus

Etymology: L, trunk; Gk, arteria, airpipe
the embryonic arterial trunk that initially opens from both ventricles of the heart and later divides into the aorta and the pulmonary trunk, the two parts separated by the bulbar septum.

truncus arteriosus

Cardiology A congenital heart defect characterized by a single arterial trunk arising in the ventricle, which supplies the pulmonary, coronary, and systemic circulation; a large VSD always accompanies TAs, essentially converting the right and left ventricles into a single chamber; blood flows at a higher pressure through the arteries–the pressure in the pulmonary circulation is normally low; systemic pressure in the pulmonary circulation ↑ blood flow through the lungs, ↑ cardiac load, heart failure; ↑ pulmonary pressure eventually damages the pulmonary vessels, causing ↑ pulmonary resistance, ergo ↓ pulmonary blood flow and cyanosis Clinical SOB, fatigue, heart failure, poor growth, physical development and, untreated, death at a young age. See Cyanotic heart disease.

truncus

pl. trunci [L.] trunk; individual trunci are listed as trunks in Table 9 (arteries) and Table 14 (nerves).

truncus arteriosus
an artery connected with the fetal heart, developing into the aortic and pulmonary arches. The trunk may persist into extrauterine life. The single arterial trunk from the heart supplies blood to both aortic and pulmonary circuits.
truncus brachiocephalicus
a vessel arising from the arch of the aorta and giving origin to one or both of the common carotid and one or both right subclavian arteries.
truncus celiacus
celiac trunk.
truncus pulmonalis
pulmonary trunk.
References in periodicals archive ?
Crossed pulmonary arteries are a rare cardiac abnormality that often associates with congenital heart disease such as ventricular septal defect, right aortic arch, interrupted aortic arch and truncus arteriosus and chromosomal abnormalities such as chromosome 22q11 deletion.
According to the classification of Collett and Edwards, this condition was classified as a type IV truncus arteriosus (pseudotruncus).
The tots were born with rare condition truncus arteriosus that left them each with a hole in the heart and facing lung damage as blood pumped too hard round their bodies.
Hemophilus aphrophilus brain abscess associated with truncus arteriosus.
The most common types of CVMs include atrial or ventricular septal defects, transposition of the great vessels, persistent truncus arteriosus, teratology of Fallot, and coarctations.
It is disappointing to find no mention of biologically important associations, such as the linkage of truncus arteriosus to the DiGeorge syndrome and to chromosome 22P deletion.
The frequency of cardiac rotation was greatest in fetuses with truncus arteriosus, Ebstein's anomaly, pulmonic stenosis, coarctation of the aorta, and tetralogy of Fallot.
SG pulmonary cardiac patch has FDA 510(k) clearance for the repair or reconstruction of the right ventricular outflow tract (RVOT), which is a surgery commonly performed in children with congenital heart defects, such as Tetralogy of Fallot, Truncus Arteriosus, and Pulmonary Atresia.
Caitlin was diagnosed with truncus arteriosus, a rare heart defect where there is only one large blood vessel leading out of the heart instead of two.
Congenital heart defects that have been associated with UAPA are the followings; tetralogy of Fallot, ventricular septal defect (VSD), right aortic arch, truncus arteriosus, patent ductus arteriosus (PDA), CoA, subvalvular aortic stenosis, transposition of the great arteries and scimitar syndrome (2, 3, 5).
The 10-month-old twins were born with truncus arteriosus ( a condition that creates a large hole between the two pumping chambers of the heart.
It is the result of incomplete separation of the aortopulmonary trunk, even though the differentiation of the semilunar valves is completed; the presence of the semilunar valves is necessary to differentiate diagnosis from persistent truncus arteriosus (6).