Significance of Peritoneal Fluid Drainage in Management After Repair of Complex Heart Defects in Infancy : Cytokine Dynamics In Vivo

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Background In vivo redundancy of pro-inflammatory cytokines results in a vicious cycle of systemic inflammatory response syndrome and low cardiac output syndrome (LOS). The purpose of this study was to elucidate the influence of peritoneal fluid (PF) drainage on cytokine dynamics in vivo and the significance of early induction for infants with LOS. Methods and Results Seven infants, who underwent early PF drainage to manage LOS after repair of complex heart defects under cardiopulmonary bypass, were enrolled. The serum and PF levels of the pro- and antiinflam-matory cytokines, interleukin (IL)-6, -8, -10 and tumor necrosis factor (TNF)-α, were measured during the peri-operative period. Clinical outcomes were observed simultaneously. There were no cases of early or late death, or infectious complications. Drainage volume of PF peaked just after operation, and decreased completely. The amount of proinflammatory cytokines in the PF increased for 3 days after operation. Of the proinflammatory cytokines in the PF IL-6 increased the earliest and cleared the fastest. The amount of cleared IL-8 and TNF-a peaked on the 3rd postoperative day and resembled the course of C-reactive protein (CRP). Serum levels of CRP and proinflammatory cytokines in patients with PF drainage decreased significantly more than those without PF drainage. Conclusions Early initiation of PF drainage is useful in the postoperative critical care of infants with LOS by improving cytokine dynamics in vivo, although there are differences between the severity of patients undergoing PF drainage and those who do not.
2007-05-20

Significance of Peritoneal Fluid Drainage in Management After Repair of Complex Heart Defects in Infancy : Cytokine Dynamics In Vivo

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