Utilization of the Seraph® 100 Affinity Blood Filter in a Pediatric Case of Refractory Streptococcal Septic Shock: A Case Study - Report - MDSpire

Utilization of the Seraph® 100 Affinity Blood Filter in a Pediatric Case of Refractory Streptococcal Septic Shock: A Case Study

  • By

  • Raul Montero-Yeboles

  • Laura Maria Saez-García

  • Esther Ulloa-Santamaria

  • Ana Diaz-Vico

  • Maria Jose Lorenzo-Montero

  • Beatriz Ruiz-Saez

  • April 17, 2026

  • 0 min

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Clinical Report: Utilization of the Seraph® 100 Affinity Blood Filter in a Pediatric Case

Overview

This report details the use of the Seraph® 100 Microbind® affinity blood filter in a 7-year-old girl with refractory septic shock due to invasive Streptococcus pyogenes. Following hemoperfusion, the patient showed hemodynamic and metabolic improvement, although she required bilateral lower-limb amputations due to ischemia.

Background

Expand on the mechanisms of septic shock and the role of Streptococcus pyogenes.

Data Highlights

No numerical data or trial data presented in the article.

Key Findings

  • The Seraph® 100 filter was used in a 7-year-old girl with refractory septic shock.
  • Hemoperfusion was initiated 42 hours after ICU admission, following severe multiorgan dysfunction.
  • Post-treatment, there was a noted reduction in vasoactive support and improvement in metabolic parameters.
  • The patient stabilized without requiring extracorporeal membrane oxygenation.
  • Despite the improvement, the patient experienced severe peripheral ischemia leading to bilateral lower-limb amputations.
  • Findings suggest a potential role for hemoperfusion as an adjunctive therapy in selected pediatric cases of septic shock.

Clinical Implications

The use of the Seraph® 100 filter may provide a novel adjunctive treatment option for pediatric patients experiencing refractory septic shock. Clinicians should consider this approach in conjunction with standard therapies, particularly in cases where conventional management fails.

Conclusion

This case highlights the potential benefits of pathogen-binding hemoperfusion in pediatric septic shock, although further studies are necessary to establish its safety and efficacy. The findings underscore the need for careful consideration of treatment options in severe cases.

Related Resources & Content

  1. Intensive Care Medicine, 2026 -- Surviving Sepsis Campaign International Guidelines for the Management of Sepsis and Septic Shock in Children
  2. Emerging Infectious Diseases, 2025 -- Severe Group A Streptococcus Infection among Children, France, 2022–2024
  3. Intensive Care Medicine, 2021 -- Exploring the Role of Extracorporeal Blood Purification in Restoring Homeostasis During Sepsis
  4. Intensive Care Medicine — In-line Filtration Minimizes Major Complications and Hospitalization Duration in Pediatric Intensive Care: Results from a Prospective Randomized Controlled Study
  5. Pediatric Cardiology — Utilization of In-line Filtration Reduces Systemic Inflammatory Response Syndrome and Improves Renal and Hematologic Function in Pediatric Patients in Cardiac Intensive Care
  6. Intensive Care Medicine — Defining Refractory Septic Shock in Pediatric Patients: Insights from the European Society of Paediatric and Neonatal Intensive Care
  7. Surviving Sepsis Campaign International Guidelines for the Management of Sepsis and Septic Shock in Children 2026 | Intensive Care Medicine | Springer Nature Link
  8. Severe Group A Streptococcus Infection among Children, France, 2022–2024 - Volume 31, Number 9—September 2025 - Emerging Infectious Diseases journal - CDC
  9. Hemoperfusion with Seraph-100 in septic patients removes pathogens and improves clinical outcomes - PMC

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