A four-year-old girl with nodular sclerosis, who has been on antiepileptic medications such as Tegretol and Clonazepam tablets, and later switched to Oxcarbazepine for poor control, recently experienced symptoms of edema, abdominal swelling, and splenomegaly, accompanied by severe thrombocytopenia. After treatment at a children’s hospital, the edema subsided, but the spleen remained enlarged, and the platelet count did not improve. Inquire about treatment methods to improve the condition.

Explore the causes and treatment methods of pediatric chronic congestive splenomegaly, especially the related factors of portal hypertension.