Related Experiment Videos
Serious bacterial infections. C-reactive protein as a serial index of severity
1Children's Hospital, University of Helsinki, Finland.
Insights
C-reactive protein (CRP) effectively tracks severe bacterial infections in children. CRP levels indicate recovery or complications, even in immunocompromised patients.
Area of Science:
- Pediatrics
- Infectious Diseases
- Clinical Chemistry
Background:
- Monitoring severe bacterial infections in children requires reliable biomarkers.
- C-reactive protein (CRP) is a key acute-phase reactant.
- Immunocompromised children present unique challenges in infection monitoring.
Observation:
- Serum CRP levels were monitored daily in 72 septicemic or severe bacterial infection episodes in 59 children.
- CRP was quantified using an immunoturbidimetric method from finger-prick samples.
- Monitoring continued until clinical recovery or patient death.
Findings:
- Elevated CRP levels (≥20 mg/l) typically rose initially then rapidly decreased upon uneventful recovery.
- Persistent high or re-increasing CRP levels indicated complications or non-recovery.
- CRP behavior was independent of the patient's immunologic status.
Implications:
- CRP serves as a sensitive indicator of treatment response and prognosis in pediatric bacterial infections.
- Its utility is particularly significant in immunocompromised children where other markers may be unreliable.
- Daily CRP monitoring aids in timely clinical decision-making for severe infections.
Abstract:
The clinical course of 72 septicemic episodes or focal severe bacterial infections was monitored by daily measurements of serum C-reactive protein (CRP) in 59 children beyond the neonatal period, 19 of whom were immunocompromised. CRP was determined quantitatively by an immunoturbidimetric method from a finger prick sample until either clinical recovery occurred and antimicrobial therapy was discontinued or until the death of the patient. The primarily elevated CRP levels (greater than or equal to 20 mg/l) usually increased about for a day but then decreased rapidly, provided the patient recovered uneventfully. If not, CRP remained at a high level or reincreased after transient decrease. Behaviour of CRP was not affected by the immunologic status of the patient. This property makes CRP especially useful in immunocompromised patients in whom other commonly used laboratory parameters may fail.