An evidence that splenectomy might benefit a patient with idiopathic thrombocytopenic purpura includes which of the following

Splenectomy is not indicated in non-bleeding ITP for 6 months with platelet count above 50,000 /cu.mm.reaponse rate 80%.relapse of ITP after splenectomy is 10%.it is probably due to hepatic sequestration of platelets in such patients or presence of accessory spleens Ref: SRB&;s manual of surgery,ed5, pg no 675