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Gonococos que producen penicilinasa en el centro de Liverpool
Lancet (London, England)
|December 25, 1976
Resumen
Los gonococos productores de penicilinasa surgieron en 1976, lo que hizo que los tratamientos con penicilina fueran ineficaces. La espectinomicina mostró altas tasas de éxito, mientras que las cefalosporinas estables a la penicilinasa son prometedoras para el futuro tratamiento de la gonorrea.
Área de la Ciencia:
- Microbiología Microbiología.
- Enfermedades infecciosas Enfermedades infecciosas.
- La resistencia a los antimicrobianos se ha desarrollado.
Sus antecedentes:
- Aparición de cepas de Neisseria gonorrhoeae (PPNG) productoras de penicilinasa en el Reino Unido.
- Las cepas PPNG adquirieron penicilinasa tipo TEM, común en los bacilos gram-negativos.
- Los aislados de PPNG rápidamente se volvieron frecuentes, alcanzando el 9% en Liverpool en 1976.
Objetivo del estudio:
- Para evaluar el impacto clínico de las infecciones por PPNG.
- Evaluar la eficacia de diferentes agentes antimicrobianos contra el PPNG.
- Para resaltar la necesidad de pruebas de diagnóstico y tratamientos alternativos.
Principales métodos:
- Observación clínica de 45 pacientes infectados con PPNG.
- Evaluación de la eficacia del tratamiento de las penicilinas, la espectinomicina y las tetraciclinas.
- Pruebas de sensibilidad in vitro de las cefalosporinas estables a la penicilina.
Principales resultados:
- Los tratamientos con penicilina fallaron en todos los casos de infección por PPNG.
- La espectinomicina logró una tasa de éxito del 95% (21/22 pacientes).
- Las tetraciclinas tuvieron una tasa de éxito del 68% (13/19 pacientes).
- Las cefalosporinas estables a la penicilinasa demostraron actividad in vitro.
Conclusiones:
- Las infecciones por PPNG no mostraron una reducción de la transmisibilidad o la invasividad.
- Los tratamientos estándar de penicilina son ineficaces contra la PPNG.
- La espectinomicina es un tratamiento eficaz; las cefalosporinas estables a la penicilinasa son posibles opciones futuras.
- La detección de laboratorio de PPNG es crucial debido a su propagación dentro del Reino Unido.
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