Voorbeelden van orifice

• In seven percent of the cases, the sinus nodal artery took origin from a separate orifice within the same sinus as a major coronary artery.

• The solution obtained is such as to violate this latter assumption sufficiently far downstream from the pipe orifice, however small the crossflow.

• The repair consisted of double patch closure of the septal defect, reconstruction of two atrioventricular orifices, and relief of pulmonary stenosis at all levels.

• One patient with a preoperative diagnosis of atrioventricular septal defect with two atrioventricular orifices was found to have a common atrioventricular orifice.

• In four of our patients, the double orifice was found to represent an abnormality in the left valve of an atrioventricular septal defect.

• The malaligned atrial septum was widely excised to reveal a small left atrium receiving the pulmonary venous orifices and a tiny atrial appendage.

• On the first postoperative day, the stent in the orifice of the right pulmonary vein migrated to the descending aorta.

• In our experience, it is the patient with unequal orifices in whom the preoperative (and in one case operative) diagnosis is difficult to make.

• Central orifice distinct and surrounded by a dull crimson area.

• Eventually the filament loses its uniformity and tapers down at its connections to the drop and orifice, as shown in frame (c).

• The superior margin of the orifice was bounded by a muscular ridge separating it from the subaortic ventricular septal defect.

• There was a prominent muscular shelf below the aortic orifice, but without any significant restriction of the outlet.

• Evaluation of the anatomy of congenitally malformed aortic valves by orifice-view aortography.

• Neonatal heart transplantation may, therefore, prove to be the only option for infants with unguarded tricuspid orifice.

• Only one orifice was notably stenotic at its origin.