Aortic insufficiency Aortic valve stenosis Redo, redo sternotomy/Third time aortic valve replacement with a 19-mm onyx mechanical valve, Replacement of ascending aorta and hemi arch with a 26-mm Dacron graft using deep hypothermic circulatory arrest.
 Patient has no past surgical history
(ROOT (S (S (NP (JJ Aortic) (NN insufficiency) (JJ Aortic) (NN valve) (NNS stenosis)) (VP (VBP Redo))) (, ,) (VP (VBP redo) (NP (NP (JJ sternotomy/Third) (NN time) (JJ aortic) (NN valve) (NN replacement)) (PP (IN with) (NP (NP (DT a) (JJ 19-mm) (NN onyx) (JJ mechanical) (NN valve)) (, ,) (NP (NP (NN Replacement)) (PP (IN of) (S (VP (VBG ascending) (NP (NP (NN aorta)) (CC and) (NP (NN hemi) (NN arch))) (PP (IN with) (NP (NP (DT a) (JJ 26-mm) (NN Dacron) (NN graft)) (VP (VBG using) (NP (JJ deep) (JJ hypothermic) (JJ circulatory) (NN arrest))))))))))))) (. .)))
(ROOT (S (NP (NN Patient)) (VP (VBZ has) (NP (DT no) (JJ past) (JJ surgical) (NN history)))))
( ( ( Aortic ( insufficiency ( Aortic ( valve stenosis ) ) ) ) Redo ) ( , ( ( redo ( ( sternotomy/Third ( time ( aortic ( valve replacement ) ) ) ) ( with ( ( ( a ( 19-mm ( onyx ( mechanical valve ) ) ) ) , ) ( Replacement ( of ( ( ascending ( ( aorta and ) ( hemi arch ) ) ) ( with ( ( a ( 26-mm ( Dacron graft ) ) ) ( using ( deep ( hypothermic ( circulatory arrest ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) )
( Patient ( has ( no ( past ( surgical history ) ) ) ) )