Successful treatment of severe hepatic impairment in erythropoietic protoporphyria: A case report and review of literature

Figure 2 Dynamic changes in total bilirubin and direct bilirubin levels in the patient. Plasma exchange treatments were conducted on March 20, 22, 24, and 28, 2023 (involving the replacement of 1800-2000 mL of fresh frozen plasma during each session), and a red blood cell exchange treatment was performed on March 21, 2023 (approximately 6 units of red blood cells were transfused). Blue arrows represent plasma exchange procedures while brown arrow denotes red blood cell exchange treatments. TBIL: Total bilirubin; DBIL: Direct bilirubin.