Circulating mean levels of creatinine phosphokinase (CPK, open circle, normal range 0–1565 U/L), lactate dehydrogenase (LDH, filled triangle, dashed line, normal range 45–718 IU/L), and aspartate aminotransferase (AST, filled squares, normal range 15–69 IU/L) were measured in the blood day 0 immediately after procedure (n=18), day 1 (n=7), and day 3 (n=6).