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[Secondary prophylaxis in rheumatic fever. Oral antibiotic therapy versus benzathine penicillin]

G V Herdy1, D C Souza, P B Barros

  • 1Hospital Universitário Antonio Pedro-UFF, Niterói.

Insights

Many children with rheumatic fever missed follow-up appointments and stopped treatment when prescribed injectable benzathine penicillin. Switching to oral antibiotics improved adherence and prevented relapses, highlighting the need for individualized prophylaxis strategies.

Area of Science:

  • Pediatric Cardiology
  • Infectious Diseases
  • Pharmacology

Background:

  • Rheumatic fever prophylaxis is crucial for preventing recurrent episodes and long-term cardiac damage.
  • Benzathine penicillin G administered intramuscularly is the standard secondary prophylaxis, but adherence can be challenging.
  • Outpatient follow-up is essential for monitoring treatment adherence and clinical outcomes.

Observation:

  • A significant percentage of pediatric patients (55%) receiving parenteral benzathine penicillin missed outpatient follow-up appointments.
  • A substantial proportion of patients (37%) on parenteral prophylaxis experienced relapsed carditis, often linked to non-adherence.
  • Patients switched to oral antibiotics demonstrated significantly better adherence and no readmissions for relapsed carditis.

Findings:

  • Adherence to parenteral benzathine penicillin prophylaxis in rheumatic fever patients is suboptimal, leading to high rates of missed appointments.
  • Switching from parenteral to oral antibiotics significantly improved patient return to ambulatory control and eliminated readmissions due to relapsed carditis.
  • The study found a statistically significant difference (p < 0.01) in outcomes between the two prophylaxis groups.

Implications:

  • Rethinking the standard parenteral prophylaxis regimen for rheumatic fever is necessary to improve patient adherence and long-term outcomes.
  • Oral antibiotic therapy may offer a more feasible and effective alternative for secondary prophylaxis in select pediatric rheumatic fever patients.
  • Individualized assessment of patient circumstances and preferences is vital for optimizing rheumatic fever secondary prophylaxis strategies.
Abstract

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