Lab work in the field of basic research of neurophysiology and neurocybernetics.
The aim of the present study is to assess the normal anatomy and variations of SA nodal artery by studying the number, origin, course, length and distance of its origin from the ostium
of parent artery.
The natural ostium
of the sphenoid sinus is located at its superior aspect anteriorly and drains into the sphenoethmoid recess.
The distance of an individual ostium
from the base of cusps of aortic valve by using Vernier caliper (Figure 2).
According to the Neri's definition of coronary malperfusion in aortic dissection,[sup] we differentiated among three types of lesions based upon operative findings: type A ( n = 23), ostial dissection is defined as a disruption of the inner layer limited to the area of the coronary ostium
without disrupting coronary vessel; type B ( n = 8), dissection with a coronary false channel; and type C ( n = 5), circumferential detachment with an inner cylinder intussusception.
LAA Length, Angulation and distance of ostium
to the first bend of LAA
was enlarged to an extent of approximately 1x1.
The above abnormality was accompanied by an ostium
secundum-type atrial septal defect.
All patients with isolated atrial septal defect (ostium
primum and sinus venosus with or without partial anomalous pulmonary venous connection) were included.
The calcified left coronary cusp partially obstructed the left main coronary ostium
during the aortic balloon valvuloplasty without hemodynamic compromise (Fig.
In this rare anomaly only one coronary artery arises from a single ostium
The patented methods include advancing a balloon through a guide and using the balloon to dilate a paranasal sinus ostium