• Eur J Trauma Emerg Surg · Apr 2021

    Effects of negative-pressure therapy with and without ropivacaine instillation in the early evolution of severe peritonitis in pigs.

    • Montiel Jiménez-Fuertes, Dolores C García-Olmo, Sara Puy, Marc Beisani, Francisca Planells, Alba Boldó, Jaime Ruiz-Tovar, Manuel Durán, and Damián García-Olmo.
    • Fundación Jiménez Díaz (IIS-FJD), "Rey Juan Carlos" University Hospital and Instituto de Investigación Sanitaria, Madrid, Spain. montiel.jf77@gmail.com.
    • Eur J Trauma Emerg Surg. 2021 Apr 1; 47 (2): 597606597-606.

    PurposeThe abdomen is the second most common source of sepsis and secondary peritonitis, which likely lead to death. In the present study, we hypothesized that instillation of local anesthetics into the peritoneum might mitigate the systemic inflammatory response syndrome (SIRS) in the open abdomen when combined with negative-pressure therapy (NPT) to treat severe peritonitis.MethodsWe performed a study in 21 pigs applying a model of sepsis based on ischemia/reperfusion and fecal spread into the peritoneum. The pigs were randomized into three groups, and treated for 6 h as follows: Group A: temporary abdominal closure with ABTHERA™ Open Abdomen Negative-Pressure Therapy; Group B: temporary abdominal closure with ABTHERA™ Open Abdomen Negative-Pressure Therapy plus abdominal instillation with physiological saline solution (PSS); and Group C: temporary abdominal closure with ABTHERA™ Open Abdomen Negative-Pressure Therapy plus peritoneal instillation with a solution of ropivacaine in PPS.ResultsA comparison between the three groups revealed no statistically significant difference for any of the parameters registered (p > 0.05), i.e., intra-abdominal pressure, blood pressure, heart rate, O2 saturation, diuresis, body temperature, and blood levels of interleukin 6 (IL-6), tumor necrosis factor alpha (TNFα), and c-reactive protein (CRP). In addition, histological studies of the liver, ileum, kidney and lung showed no difference between groups.ConclusionsThe use of abdominal instillation (with or without ropivacaine) did not change the effect of 6 h of NPT after sepsis in animals with open abdomen. The absence of adverse effects suggests that longer treatments should be tested.

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