[Characteristics of cardiac rhythm and the peroxidase activity of blood in patients with ischemic heart disease treated by hyperbaric oxygenation].

The myeloperoxidase of peripheral blood neutrophils revealed by the cytochemical method was investigated in a group of patients with ischemic heart disease (24 men, mean age--51) treated with HBO (10 sessions, under 1.5-1.7 ata, for 60 min) prior to and after each HBO session. The ECG monitoring was performed during these sessions as well. A correlation analysis of the peroxidase index (mean enzyme content in 100 cells), total peroxidase activity and tension index (obtained by computer analysis of cardiac rhythm changes) was carried out in that group of patients. A close correlation was found between the total peroxidase activity and tension index.