RESUMEN

La medición de la fracción espirada de óxido nítrico, ha permitido cuantificar indirectamente, de forma rápida y confiable la magnitud de la inflamación de la vía aérea en ciertas enfermedades respiratorias, en especial en pacientes con asma. La sencillez de esta técnica la ha convertido en una herramienta útil en el diagnóstico, control y evaluación del cumplimiento terapéutico en pacientes con asma, entre otros padecimientos. Además, mediante la medición de la fracción espirada de óxido nítrico se pueden prevenir agudizaciones debido a que permite detectar y tratar de forma inmediata los incrementos de la actividad inflamatoria. El propósito de este documento es revisar aspectos prácticos de la medición de la fracción espirada de óxido nítrico utilizando un dispositivo portátil. De igual forma, se desea proveer al clínico de herramientas útiles para la apropiada interpretación de los resultados. Consideramos que la medición de la fracción espirada de óxido nítrico es una prueba subutilizada en la práctica neumológica, y es nuestro interés poner a disposición del lector información resumida y útil.

PALABRAS CLAVE

Óxido nítrico, fracción exhalada de óxido nítrico.

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