[Clinical application of blood purification in treatment of severe adenovirus pneumonia]

To study the role of blood purification in the treatment of severe adenovirus pneumonia.

A total of 57 children with severe adenovirus pneumonia who underwent mechanical ventilation from February to June, 2019, were enrolled. According to whether blood purification was performed, they were divided into a purification group with 22 children and a conventional group with 35 children. Related clinical indices were collected, including duration of fever, duration of mechanical ventilation, length of stay in the intensive care unit (ICU), and mortality rate. The purification group was analyzed in terms of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) before blood purification and at 48 hours after blood purification, as well as stroke volume variation (SVV), thoracic fluid content (TFC), arterial partial pressure of oxygen/fraction of inhaled oxygen (P/F) value, and partial pressure of carbon dioxide (PCO₂) before blood purification and at 6, 12, 24, and 48 hours after blood purification.

Compared with the conventional group, the purification group had significantly shorter duration of fever, duration of mechanical ventilation, and length of stay in the ICU (P<0.05), and there was no significant difference in the mortality rate between the two groups (P>0.05). The purification group had significant reductions in IL-6 and TNF-α after blood purification, (P<0.05) and significant reductions in SVV and TFC at 12, 24, and 48 hours after blood purification (P<0.01), as well as a significant increase in P/F value and a significant reduction in PCO₂ at 6, 12, 24, and 48 hours after blood purification (P<0.01).

Blood purification as an auxiliary therapy can effectively improve the clinical symptoms of children with severe adenovirus pneumonia, and is thus an option for the treatment of severe adenovirus pneumonia in children.