RESULTS	Severe complications occurred in 3 patients ( 11.5 % ) of group A and in 19 patients ( 79.2 % ) of group B ( P < 0.05 ) , and there was no significant difference in symptoms of post-embolization syndrome , including abdominal pain , fever , mild nausea and vomiting between the 2 groups ( P > 0.05 ) .\