Pérez-Tuñón JG, Martiñón-Ríos R, Figueroa-Rivera M

Idioma: Español
Referencias bibliográficas: 30
Paginas: 355-360
Archivo PDF: 321.40 Kb.

RESUMEN

Introducción: La metahemoglobinemia adquirida es un trastorno en el que la hemoglobina es oxidada por un agente externo, impidiendo el transporte y entrega del oxígeno a los tejidos. Uno de los agentes oxidantes es el clorhidrato de fenazopiridina, una anilina con efecto analgésico empleada para tratar el dolor de la vía urinaria baja.
Caso clínico: Paciente de 12 años, que ingirió 250 mg de amitriptilina, 1.8 g de fenazopiridina y 14.5 mg de clonazepam en un intento suicida, desarrollando metahemoglobinemia que requirió el empleo de azul de metileno en dos ocasiones. Introducciones: La metahemoglobinemia es subdiagnosticada a pesar de poder originar complicaciones graves e, incluso, la muerte. Se diagnostica mediante cooximetría. Cuando ésta no está disponible, además de los datos clínicos, debe evaluarse la brecha de saturación y la sangre color “chocolate”.

REFERENCIAS (EN ESTE ARTÍCULO)

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