Banti syndrome

Disease Description (Causes and Symptoms)

• Definition: Banti syndrome (or idiopathic portal hypertension) refers to a group of diseases in which portal vein pressure increases without marked fibrosis of the hepatic parenchyma (cirrhosis), mainly causing splenomegaly and reduction in blood cells (particularly anemia and thrombocytopenia). Esophageal and gastric varices and resulting upper gastrointestinal bleeding are the main problems.
• Suspected causes: The exact cause is unknown, but chronic exposure to harmful substances (e.g., arsenic, vinyl chloride), chronic portal phlebitis caused by antigens originating in the intestines, autoimmune diseases, microportal vein thrombosis, and inherited abnormalities of vascular development may be associated.
• Pathophysiology (briefly): With relatively preserved liver function, structural changes in the small intrahepatic portal veins or branches of the portal vein (thickening of the portal vein walls, stenosis or obstruction of small portal veins, and formation of surrounding new blood vessels) cause portal hypertension → formation of portosystemic collaterals → splenomegaly (hypersplenism) due to splenic congestion → increased destruction of blood cells (anemia and reduced white blood cells and platelets) → increased risk of bleeding.
• Main symptoms: Splenomegaly (fullness or discomfort in the upper left abdomen), fatigue and symptoms of anemia (pallor, dizziness), bleeding (vomiting blood, bloody stool, black stool), frequent bruising and skin bleeding, and, rarely, pain in the upper left abdomen (perisplenitis or splenic infarction).

Treatment Methods

• Prevention of bleeding and treatment of acute bleeding
  • Monitor esophageal and gastric varices through regular upper gastrointestinal endoscopy.
  • Medication (prevention): Nonselective beta-blockers (propranolol, nadolol) — used for primary prevention (prevention of variceal rebleeding and first bleeding episode).
  • In acute bleeding (in hospital): Endoscopic variceal band ligation (EVL) or sclerotherapy, vasoconstrictors (octreotide, terlipressin, etc.), and, when necessary, transfusion and hemodynamic stabilization.
  • Persistent bleeding/rebleeding: If endoscopic treatment fails, transjugular intrahepatic portosystemic shunt (TIPS) or vascular surgical procedures may be considered, depending on the patient's anatomy and liver function.
• Treatment of reduction in blood cells caused by hypersplenism
  • Conservative: Observation, transfusion, and iron treatment (after confirming the cause of anemia).
  • Severe, persistent reduction in blood cells (especially when symptomatic anemia or severe thrombocytopenia repeatedly causes hemostasis problems): Splenectomy (total or partial) or partial splenic embolization (a nonsurgical alternative) may be considered. After splenectomy, vaccinations (pneumococcal, influenza, meningococcal, etc.) are needed to prepare for the increased risk of infection.
• Consideration of antithrombotic treatment
  • If thrombosis within the portal vein is confirmed as the cause, anticoagulant treatment may be considered, but multidisciplinary discussion is necessary to balance the risk of bleeding.
• Conservative and supportive treatment
  • Transfusion for anemia and low platelets, prompt antibiotic treatment in case of infection, and weight and nutritional management.
  • Medications and lifestyle: NSAIDs, anticoagulants, and antiplatelet agents may increase the risk of bleeding and should be used cautiously.
• Lifestyle management and precautions
  • Because the risk of bleeding is high, avoid vigorous contact sports, activities that may injure blood vessels, and excessive alcohol consumption.
  • Before taking medication, consult a doctor about the risk of bleeding (particularly with anticoagulants, antiplatelet agents, and NSAIDs).
  • After splenectomy, recommended vaccinations are needed to prevent infection, and early medical attention is necessary if an infection develops.
• Complications
  • Massive variceal bleeding (potentially fatal), persistent anemia and risk of infection (immune changes caused by the spleen), portal vein thrombosis, and, rarely, reduced liver function (when accompanying diseases are present).

Outpatient Visit Checklist (Including Example Questions)

• What to bring
  • A list of all currently used medications and supplements (including dosage and frequency)
  • Recent test results (complete blood count (CBC), liver function tests (LFTs), abdominal ultrasound, CT, and MRI images, endoscopy reports/photos)
  • Symptom records (date of onset, frequency, and severity of bleeding, melena, nausea, abdominal pain, fatigue, etc.)
  • History of transfusions and hospitalizations, surgical history, and vaccination records (particularly if splenectomy is planned)
  • Allergies and family history (portal vein disease and blood disorders)
• Points to tell the doctor first during the outpatient visit (examples)
  • Have you had hematemesis or black stools (melena) within the past 6 months? When and how much?
  • Have you been bruising easily recently or having frequent nosebleeds?
  • Have you frequently changed medications, or are you taking anticoagulants?
  • Possibility of pregnancy (for women)
• Items that may be measured or checked during the outpatient visit
  • Blood pressure and pulse (when adjusting beta-blockers), abdominal palpation (spleen size), latest blood tests (CBC and coagulation tests), and scheduling of endoscopy and imaging when necessary

General Example Questions to Ask the Doctor

• "To what extent does my disease (increased portal pressure) affect my anemia and low platelet count? How much improvement can be expected with treatment?"
• "If I should start a beta-blocker for prevention (or undergo endoscopic ligation), what side effects can be expected and how should they be managed?"
• "If splenectomy is necessary, what are the criteria, and what are the expected advantages and disadvantages after surgery?"
• "Are there any medications or activities that I must avoid in daily life to reduce the risk of bleeding?"
• "What tests should I undergo regularly, and how often should follow-up monitoring be performed?"

Examples of Disease-Specific Questions

• "In my case (with the recent CBC values noted), the reduction in platelets and red blood cells due to hypersplenism is severe. Which would you recommend, splenectomy or partial splenic embolization? What are the complications and recovery process?"
• "Varices were observed on upper gastrointestinal endoscopy. Which treatment do you recommend first: starting a beta-blocker or endoscopic band ligation? What are the expected effects and side effects of each?"

(If necessary, writing down these questions and bringing them to the appointment can make the consultation more efficient.)