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¿Se producen anormalidades en la motilidad esofágica durante la prueba de perfusión de ácido intraesofágico?
JAMA
|April 5, 1985
Resumen
La perfusión de ácido no reveló anormalidades significativas de la motilidad esofágica en pacientes con reflujo que experimentan acidez estomacal. Estos hallazgos sugieren que la disfunción motora inducida por el ácido no es esencial para generar dolor esofágico.
Área de la Ciencia:
- Gastroenterología y Gastroenterología.
- Fisiología del esófago.
Sus antecedentes:
- Los síntomas de acidez estomacal se han relacionado históricamente con problemas de motilidad esofágica inducida por ácido en lugar de inflamación.
- Estudios anteriores carecían de la evaluación manométrica moderna para confirmar esta asociación.
Objetivo del estudio:
- Para investigar la relación entre la perfusión ácida y las anormalidades de la motilidad esofágica en pacientes con reflujo y esofagitis.
- Para evaluar si la exposición al ácido desencadena una disfunción motora que contribuye al dolor de acidez estomacal.
Principales métodos:
- Las presiones intraesofágicas fueron monitoreadas durante la perfusión de ácido (0,1N ácido clorhídrico) en 17 pacientes con reflujo y 17 controles.
- Los parámetros de la motilidad esofágica, incluidos los patrones de amplitud, duración, velocidad y contracción, se analizaron utilizando un sistema de infusión de bajo cumplimiento.
Principales resultados:
- La perfusión de ácido aumentó significativamente la duración de la contracción esofágica en pacientes con reflujo, pero no en los controles.
- No se observaron cambios significativos en la amplitud de la contracción en ninguno de los grupos.
- Se produjo una disminución significativa en la velocidad de contracción tanto en pacientes con reflujo como en controles durante la perfusión ácida.
- Las anomalías motoras inducidas por el ácido no eran un hallazgo común y no parecían necesarias para la producción de dolor.
Conclusiones:
- Las anomalías motoras inducidas por el ácido no son una ocurrencia frecuente en pacientes con esofagitis por reflujo.
- La disfunción de la motilidad esofágica no parece ser el mecanismo principal para el dolor inducido por el ácido en el esófago.
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