Cardiac contractility during hemofiltration in an awake model of hyperdynamic endotoxemia

Satoshi Ishihara, John A. Ward, Osamu Tasaki, Basil A. Pruitt, David W. Mozingo

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Background: To determine whether continuous veno-venous hemofiltration can ameliorate hemodynamic instability and left ventricular (LV) dysfunction by reducing circulating plasma mediators, the authors used the LV end-systolic elastance (Ees) as a contractility index, in an awake swine model simulating human hyperdynamic endotoxemia. Methods: Nineteen instrumented pigs were divided into a control group (CTRL, n = 7), a hemofiltration (HF, n = 7) group, and an extracorporeal circuit (ECC, n = 5) only group. All animals received intravenous E. coli endotoxin (10 μg • kg • h) and resuscitation in a common regimen for 24 hours. Hemofiltration was started 30 minutes after initiation of endotoxemia and continued until the end of the experiment. Results: Ees was maintained at baseline levels in the HF group, whereas a progressive decrease of Ees was found in both the CTRL and the ECC groups. Cardiac output was significantly higher in the HF group than the CTRL group. There was no significant difference between the groups in plasma catecholamines. Conclusion: We conclude that hemofiltration prevented LV impairment.

Original languageEnglish (US)
Pages (from-to)1055-1061
Number of pages7
JournalJournal of Trauma - Injury, Infection and Critical Care
Volume67
Issue number5
DOIs
StatePublished - Dec 1 2009

Keywords

  • Catecholamines
  • Endotoxin
  • Hemofiltration
  • LV function

ASJC Scopus subject areas

  • Surgery
  • Critical Care and Intensive Care Medicine

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