Truncal valve stenosis

Stenotic Semilunar Valve in Persistent Truncus Arteriosus

“…The clinical, hemodynamic, and pathologic findings of a stenotic truncal valve were first described in a case report by Burnell and associates 2 in 1971 and again by Lee and associates 3 in 1973. We have observed two examples of truncal valvular stenosis; our case 1 was similar to that of Burnell et al, z and case 2 had some findings like that of Lee et al 3 The purpose of this report is to present the clinical, hemodynamic, and necropsy findings of these two cases. Both had been admitted shortly after birth (within a three-week period) to the intensive care nursery of St. Mary's Hospital, Madison, Wis.…”

“…Also, as previously mentioned, the hemodynamics and cardiac anatomy of our case 2 had similarities to the case of Lee and associates. 3 The persistent truncus arose only from the right ventricle; therefore, egress from the left ventricle was only through the ventricular septal defect into the right ventricle. Venous pressure and right ventricular systolic and end-diastolic pressures were severelyelevated.…”