Clinical course of the patient after admission. Levels of serum aspartate aminotransferase (AST; diamonds), alanine aminotransferase (ALT; squares), and creatinine phosphokinase (CPK; triangles) were high. The AST level peaked on day 2, ALT on day 3, and CPK on day 4. The levels of brain natriuretic peptide (BNP) and troponin I (TnI) were highest at admission and subsequently decreased, but did not return to normal. The gamma-glutamyl transpeptidase (γ-GTP) level was moderately elevated during hospitalization. The serum creatinine level returned to normal by day 7.