Increasing use of extracorporeal life support in methicillin-resistant Staphylococcus aureus sepsis in children

C Buddy Creech1, B Gayle Johnson, Randall E Bartilson

  • 1Pediatric Infectious Diseases and Pediatric Clinical Research Office, Vanderbilt University Medical center and Children's Hospital, Nashville, TN, USA. buddy.creech@vanderbilt.edu

Abstract

Insights

The use of extracorporeal life support (ECLS) for pediatric methicillin-resistant Staphylococcus aureus (MRSA) infections is increasing. High mortality rates in older children with MRSA infections requiring ECLS are a growing concern.

Area of Science:

  • Pediatric Critical Care Medicine
  • Infectious Diseases
  • Extracorporeal Membrane Oxygenation (ECMO)

Background:

  • Fulminant community-associated methicillin-resistant Staphylococcus aureus (MRSA) infections in children can be severe.
  • The frequency of extracorporeal life support (ECLS) use for severe pediatric staphylococcal disease is not well-documented.

Observation:

  • A study analyzed pediatric ECLS cases for MRSA infections from 1994-2005 using local and international databases.
  • Demographic data, ventilatory management, and cardiopulmonary status were assessed for children (0-18 years) with MRSA infections requiring ECLS.

Findings:

  • Three MRSA sepsis cases requiring ECLS were identified locally since 2000, all in previously healthy adolescents with severe necrotizing pneumonia; two patients died.
  • Internationally, 45 pediatric MRSA infection cases requiring ECLS were identified, with nearly half reported in the two years prior to the study.
  • Survival rates for MRSA infection requiring ECLS varied by age, with infants and young children (1-4 years) having the highest survival (65-71%) and older children (5-9 and 13-18 years) having the lowest (0-31%).

Implications:

  • The incidence of ECLS use for pediatric MRSA infections is rising globally.
  • High mortality rates, especially in older pediatric patients with MRSA infections requiring ECLS, underscore the increasing threat posed by this pathogen.

Related Concept Videos

Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...
Mechanism of Antibiotic Resistance in MRSA01:25

Mechanism of Antibiotic Resistance in MRSA

Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and acquisition...
Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
Extracorporeal Removal of Drugs: Continuous Renal Replacement Therapy01:26

Extracorporeal Removal of Drugs: Continuous Renal Replacement Therapy

Continuous Renal Replacement Therapy (CRRT) is an essential intervention for patients experiencing severe kidney dysfunction. This therapy offers a continuous mechanism for removing fluids and toxins from the bloodstream, leveraging the patient’s blood pressure to facilitate filtration through a specialized filter. This method contrasts with intermittent dialysis, providing a gentler and more consistent removal of waste products and excess fluid, which is particularly beneficial in critically...