Nr. Grande et al., ANATOMICAL BASIS FOR THE SEPARATION OF 4 CARDIAC ZONES IN THE WALLS OF HUMAN HEART VENTRICLES, Surgical and radiologic anatomy, 16(4), 1994, pp. 355-361
Citations number
23
Categorie Soggetti
Surgery,"Radiology,Nuclear Medicine & Medical Imaging
The coronary vessels of 70 human hearts were visualized postmortem by
injection of the coronary arteries with a X-ray opaque substance (for
angiographic studies) or with a low viscosity resin (to obtain vascula
r casts). Analysis of the data suggests a new anatomical systematizati
on of the vascularization of the myocardial tissue of human heart vent
ricles: it can be divided into four zones each having a different orig
in of the arterial vessels. These four components of the heart ventric
les are the antero-septal (AS), postero-septal (PS), left-lateral (LL)
, and right-lateral (RL) zones. They correspond to the territories of
the anterior interventricular branch of the left coronary artery (AS z
one), of the posterior interventricular branch of the right coronary a
rtery (PS zone), of the left circumflex artery (LL zone), and of the r
ight coronary artery (RL zone) up to the origin of the posterior inter
ventricular artery. This systematization of the arterial heart ventric
les in zones offers a balanced division of the myocardial tissue, sinc
e each of the four zones occupied about one fourth of the total volume
of the ventricles. In our samples, the most common distributin of seg
ments in the wall of heart ventricles was the following: 16 segments i
n the AS zone, 11 segments in the PS zone, 5 segments in the LL zone,
and 4 segments in the RL zone. The separation of four zones in the wal
ls of heart ventricles, each of them made up of different segments, ma
y be helpful in the understanding of the pathophysiology of myocardial
ischemia, and also in the choice of surgical strategies to treat aneu
risms of the heart ventricle wall.