Treatment of hemoptysis by embolization of bronchial arteries
sup],, It is well-documented that the anatomy of bronchial arteries
is variable form person to person, typically origin arises from the descending aorta between the levels of the T5 and T6 vertebrae.
The health of the bronchial arteries is critical because they supply oxygenated blood to the lungs, as opposed to the pulmonary arteries, which carry deoxygenated blood to the lungs.
When the bronchial arteries are sacrificed and not restored when lungs are transplanted, that leaves the airways dependent on collateral flow from the pulmonary artery system," Dr.
Conducting airways receive their blood supply from branches of bronchial arteries
, while the terminal respiratory units receive blood from branches of the pulmonary arteries.
Additional bronchial arteries were missed in the initial angiogram and detected on a subsequent study in three patients.
Bronchial arteries are reported to be responsible for 90% of massive hemoptysis.
This theory was supported by findings of dilated and distorted bronchial arteries and convoluted small branches in digital subtraction angiograms.
Hemoptysis can occur due to the rupture of an aneurysm, acute vasculitis, or due to rupture of the angiodysplastic bronchial arteries.
A bronchial artery angiogram showed hypertrophied bronchial arteries
in the right upper lobe with no bleeders & on the left side it was normal.
These branches persist as enlarged supradiaphragmatic and infradiaphragmatic aortic branches, or as bronchial arteries
in cases in which the pulmonary artery does not develop (2).
Although pseudoaneurysm of bronchial arteries
is an important source of hemoptysis, it is seen infrequently.