 A sternotomy incision was then opened and the lesions from the previous operative procedures were lysed and they were very dense and firm, freeing up the right atrium and the ascending aorta and anterior right ventricle. 
A sternotomy incision was then opened and the lesions from the previous operative procedures were lysed and they were very dense and firm , freeing up the right atrium and the ascending aorta and anterior right ventricle .