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Endocrinología, Diabetes y Nutrición (English ed.) Neurological crisis in tyrosinemia type 1: Essential roles of replacement therap...
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Vol. 72. Issue 9.
(November 2025)
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Vol. 72. Issue 9.
(November 2025)
Review article
Neurological crisis in tyrosinemia type 1: Essential roles of replacement therapy and nutrition in multidisciplinary management
Crisis neurológica en tirosinemia tipo 1: el papel crucial de la terapia sustitutiva y la nutrición en el abordaje multidisciplinar
David Sanchis-Pascuala,b, Agustín Ramos Prola,b, María Argente Plaa,b,
Corresponding author
mariaargentepla@gmail.com

Corresponding author.
, Cristina Montalbán Méndeza,b, Darío Lara Gálveza,b, Carlos Folgado Bisbalc, Montserrat León Fábregasd, María Amparo Rubio Brosetaa, Eva Gascó Santanaa, Pilar Morillas-Amate, Mónica García Perisf, Patricia Correcher Medinaf, Juan Francisco Merino-Torresa,b,g
a Endocrinology and Nutrition Department, La Fe University and Polytechnic Hospital in Valencia, 46026 Valencia, Spain
b Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute La Fe, 46026 Valencia, Spain
c Intensive Care Medicine Department, La Fe University and Polytechnic Hospital in Valencia, 46026 Valencia, Spain
d Pulmonology Department, La Fe University and Polytechnic Hospital in Valencia, 46026 Valencia, Spain
e Pediatric Endocrinology Unit, La Fe University and Polytechnic Hospital in Valencia, 46026 Valencia, Spain
f Pediatric Nutrition and Metabolic Unit, La Fe University and Polytechnic Hospital in Valencia, 46026 Valencia, Spain
g Department of Medicine, University of Valencia, 46010 Valencia, Spain
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Table 1. Nutrition guidelines throughout the weeks of hospitalization. From week 6 onward, enteral administration was provided via gastrostomy, whereas prior to this, it was administered through a nasogastric tube.
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Abstract

This is the case of a man with hepatorenal tyrosinemia type 1 (HT-1). Following the omission of his usual treatment with nitisinone and the withdrawal of dietary recommendations, the patient developed a severe neurological crisis requiring admission to the intensive care unit (ICU) due to profound diaphragmatic weakness. Despite the initial severity, appropriate management led to a favorable outcome and, eventually, weaning from mechanical ventilation. This case underscores the critical importance of a multidisciplinary approach in the management of inborn errors of metabolism, where nutritional therapy remains the cornerstone of treatment to prevent life-threatening complications.

Keywords:
Tyrosinemia type 1
Nitisinone
Nutritional management
Tyrosine
Succinylacetone
Metabolic neuropathy
Respiratory failure
Resumen

Se presenta el caso de un paciente adulto varón con tirosinemia hepatorrenal tipo 1 (TH-1). Tras la omisión de su tratamiento habitual con nitisinona y el abandono de las recomendaciones dietéticas, el paciente desarrolló una crisis neurológica grave que requirió ingreso en la Unidad de Cuidados Intensivos (UCI) debido a una debilidad diafragmática severa. A pesar de la gravedad inicial, el manejo adecuado permitió una evolución favorable, con la retirada progresiva de la ventilación mecánica. Este caso pone de manifiesto la importancia crítica de un abordaje multidisciplinar en el manejo de los errores innatos del metabolismo, donde la terapia nutricional continúa siendo una piedra angular del tratamiento para prevenir complicaciones potencialmente mortales.

Palabras clave:
Tirosinemia tipo 1
Nitisinona
Abordaje nutricional
Tirosina
Succinilacetona
Neuropatía metabólica
Insuficiencia respiratoria

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