ation ▁of ▁water , ▁and ▁as ▁a ▁comp lication ▁during ▁rescue ▁and ▁res usc itation ▁due ▁to ▁asp iration ▁of ▁vom it . ▁ ▁In ▁some ▁individuals ▁l ary ng osp asm ▁can ▁occur ▁sp ont ane ously ▁or ▁as ▁a ▁result ▁of ▁re fl ux ▁or ▁imp a ired ▁sw allow ing . ▁Gast ro es oph age al ▁re fl ux ▁disease ▁( GER D ) ▁is ▁a ▁common ▁cause ▁of ▁sp ont aneous ▁l ary ng osp asm . ▁ ▁Tre ating ▁G ER D ▁can ▁less en ▁the ▁frequency ▁of ▁sp as ms . ▁ ▁The ▁on set ▁of ▁sp as ms ▁may ▁be ▁caused ▁by ▁a ▁vir al ▁in fection . ▁ ▁It ▁is ▁also ▁a ▁comp lication ▁associated ▁with ▁an est hes ia . ▁ ▁The ▁sp asm ▁can ▁happen ▁often ▁without ▁any ▁prov ocation , ▁but ▁tends ▁to ▁occur ▁after ▁tra che al ▁ext ub ation . ▁In ▁children , ▁the ▁condition ▁can ▁be ▁particularly ▁dead ly , ▁leading ▁to ▁card iac ▁arrest ▁within ▁ 3 0 – 4 5 ▁seconds , ▁and ▁is ▁a ▁possible ▁cause ▁of ▁death ▁associated ▁with ▁the ▁induction ▁of ▁general ▁an est hes ia ▁in ▁the ▁ped iat ric ▁population . ▁These ▁situations ▁are ▁not ▁to ▁be ▁confused ▁with ▁the ▁ben ign ▁l ary ng osp am ▁events ▁seen ▁in ▁inf ants ▁after ▁feed ing ▁or ▁due ▁to ▁re fl ux . ▁ ▁It ▁can ▁sometimes ▁occur ▁during ▁sleep , ▁w aking ▁up ▁the ▁suffer er . ▁This ▁usually ▁occurs ▁when