Ostium primum ASD and clinical findings of ASD

Ostium primum ASD and clinical findings of ASD Ostium primum ASD Ostium primum atrial septal defect is part of the AV canal defects. In partial AV canal defect, ostium primum ASD is often associated with cleft anterior mitral leaflet producing mitral regurgitation. Tricuspid regurgitation may also be noted. In complete AV canal defect, there is associated canal VSD or inlet VSD and sometimes a single AV valve. Ostium primum ASD being part of the endocardial cushion defects, may be associated with Down syndrome. They are more likely to develop pulmonary hypertension and Eisenmenger syndrome earlier. DiGeorge syndrome and Ellis-Van Creveld syndrome are the other conditions which can be associated with ostium primum ASD. Ostium primum ASD is much rarer than ostium secundum ASD. Spontaneous closure is unlikely in ostium primum atrial septal defects. Echocardiogram from the apical four chamber view Echocardiogram from the apical four chamber view shows ostium primum ASD seen in the left panel. It may be noted that both AV valves are at the same level (No atrioventricular septum). There is no part of the septum between the ASD and the AV valves, unlike in secundum ASD. Middle panel shows left to right shunt across the ASD (L>R shunt). Right panel shows bluish mosaic tricuspid regurgitation (TR jet). RA: Right atrium, RV: Right ventricle, LA: Left atrium, LV: left ventricle. Clinical findings in atrial septal defect Left parasternal pulsations or heave indicate right ventricular ...
Source: Cardiophile MD - Category: Cardiology Authors: Tags: HBC Wide fixed split of second heart sound Source Type: blogs