Data processing Data were entered into the computer using SPSS 22.0 software 12 Research design diagram Hypertriglyceridemic pancreatitis Conventional treatment with rehydration, nutrition and symptoms The patient is assigned PEX The patient is assigned PEX and agrees to perform PEX Patients with no PEX aspiration or PEX contraindications PEX as soon as possible until TG <500mg / dL Keep using insulin until TG<500mg / dL Use medication as soon as the patient can receive, monitoring of complications and appropriate treatment Object 1: Determining clinical features, subclinical and severity of hypertriglyceridemic pancreatitis Object 2: Evaluation of the therapeutic effect and undesirable effects of plasma replacement therapy.