He was getting his head laceration repaired when he started to seize.
 The patient had head trauma.
(ROOT (S (NP (PRP He)) (VP (VBD was) (VP (VBG getting) (NP (NP (PRP$ his) (NN head) (NN laceration)) (VP (VBN repaired) (SBAR (WHADVP (WRB when)) (S (NP (PRP he)) (VP (VBD started) (S (VP (TO to) (VP (VB seize))))))))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBD had) (NP (NN head) (NN trauma))) (. .)))
( He ( ( was ( getting ( ( his ( head laceration ) ) ( repaired ( when ( he ( started ( to seize ) ) ) ) ) ) ) ) . ) )
( ( The patient ) ( ( had ( head trauma ) ) . ) )