Combined Extracorporeal Therapy with Pathogen Hemoadsorption and Cell-Directed Immunomodulation Strategies: A Two-Case Series
Abstract
Abstract Introduction: Sepsis remains a critical global health issue, causing multiple organ failure and high mortality rates, despite advances in antimicrobial therapies and supportive care. Extracorporeal blood purification (EBP) techniques have emerged as promising adjunctive strategies for the management of severe infections. The Seraph® 100 Microbind® Affinity Blood Filter (Seraph 100, ExThera Medical, Martinez, CA, USA) targets pathogens, while the Selective Cytopheretic Device (SCD, SeaStar Medical, Denver, CO, USA) neutralizes activated leukocytes. Although individually validated, evidence of the combined use of Seraph 100 and SCD remains scarce. Case Presentations: We present two cases that illustrate the combined use of Seraph 100 and SCD. The first case involves a 43-year-old woman with bacterial pneumonia, septic shock, and acute kidney injury (AKI). She underwent Seraph 100 hemoperfusion followed by SCD therapy, which improved her hemodynamics, oxygenation, and renal function, ultimately leading to full recovery. The second case involved a 31-year-old man with influenza, severe hypoxemia, and multi-organ failure. Despite advanced therapies, including veno-arterial venous extracorporeal membrane oxygenation, Seraph 100, and SCD, his condition deteriorated, resulting in multi-organ failure and eventual death. Conclusion: These cases highlight the potential benefits and challenges of combining EBP, such as Seraph 100 and SCD. While successful in one case, the fatal…
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