Carotid sinus massage and exercise were performed with no prominent effect on AV nodal conduction.
 Carotid sinus massage was effective 
(ROOT (S (NP (NP (NN Carotid) (NN sinus) (NN massage)) (CC and) (NP (NN exercise))) (VP (VBD were) (VP (VBN performed) (PP (IN with) (NP (NP (DT no) (JJ prominent) (NN effect)) (PP (IN on) (NP (NN AV) (JJ nodal) (NN conduction))))))) (. .)))
(ROOT (S (NP (NN Carotid) (NN sinus) (NN massage)) (VP (VBD was) (ADJP (JJ effective)))))
( ( ( ( Carotid ( sinus massage ) ) and ) exercise ) ( ( were ( performed ( with ( ( no ( prominent effect ) ) ( on ( AV ( nodal conduction ) ) ) ) ) ) ) . ) )
( ( Carotid ( sinus massage ) ) ( was effective ) )