Desarrollo de una herramienta software para la estimación del desempeño del sistema nervioso autónomo usando variabilidad del ritmo cardiaco, variabilidad del segmento QT y dispersión QT

  • Carlos A. Niño Universidad Industrial de Santander
  • Daniel A. Sierra Universidad Industrial de Santander
  • Cesar A. Duarte Universidad Industrial de Santander
  • Jaime G. Barrero Universidad Industrial de Santander
  • Oscar L. Rueda Universidad Industrial de Santander

Resumen

La evaluación del estado del sistema nervioso autónomo (SNA) se puede realizar mediante la medición de la variabilidad de la frecuencia cardiaca, la variabilidad del segmento QT y la dispersión del segmento QT. En este trabajo se presenta la implementación de estas estimaciones mediante algoritmos basados en la transformadaWavelet y la estimación espectral de Yule-Walker. Registros electrocardiográfcos de 20 minutos de duración fueron evaluados, con 15 minutos tomados de forma continua. Parámetros de la fuctuación cardiaca fueron tomados de una población de 92 pacientes, quienes presentaron el primer accidente cerebrovascular y llevaron a cabo un protocolo de inclusión estricto para evaluar su variabilidad en la frecuencia cardiaca. Las pruebas estadísticas se realizaron para determinar la repetibilidad de las mediciones.

Palabras clave: Stroke, autonomous nervous system, cardiac frequency variability, spectrum, vagal-sympathetic balance

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Biografía del autor

Carlos A. Niño, Universidad Industrial de Santander

MSc. in Electronic Engineering Electrical, Electronics and Telecommunications Engineering School.

Daniel A. Sierra, Universidad Industrial de Santander

Ph.D in Biomedica Engineering Electrical, Electronics and Telecommunications Engineering School.

Cesar A. Duarte, Universidad Industrial de Santander

Ph.D. in Electrical Engineering Electrical, Electronics and Telecommunications Engineering School.

Jaime G. Barrero, Universidad Industrial de Santander

MSc. in Electrical Power Electrical, Electronics and Telecommunications Engineering School.

Oscar L. Rueda, Universidad Industrial de Santander

MD. Specialist in Internal Medicine Basic Sciences Department, Health Deanery.

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Publicado
2013-05-04