The patient was on aspirin for chronic atrial fibrillation and spent a short course at rehabilitation before eventually being discharge to home.
 The patient has a history of arrhythmia
(ROOT (S (NP (DT The) (NN patient)) (VP (VP (VBD was) (PP (IN on) (NP (NN aspirin))) (PP (IN for) (NP (JJ chronic) (JJ atrial) (NN fibrillation)))) (CC and) (VP (VBD spent) (NP (DT a) (JJ short) (NN course)) (PP (IN at) (NP (NN rehabilitation))) (PP (IN before) (S (ADVP (RB eventually)) (VP (VBG being) (NP (NN discharge)) (PP (TO to) (NP (NN home)))))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ has) (NP (NP (DT a) (NN history)) (PP (IN of) (NP (NN arrhythmia)))))))
( ( The patient ) ( ( ( ( ( was ( on aspirin ) ) ( for ( chronic ( atrial fibrillation ) ) ) ) and ) ( ( ( spent ( a ( short course ) ) ) ( at rehabilitation ) ) ( before ( eventually ( ( being discharge ) ( to home ) ) ) ) ) ) . ) )
( ( The patient ) ( has ( ( a history ) ( of arrhythmia ) ) ) )