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Medicina Clínica (English Edition) Clinical utility of quantitative pupillometric monitoring in patients with acute...
Journal Information
Vol. 165. Issue 4.
(October 2025)
Review
Clinical utility of quantitative pupillometric monitoring in patients with acute brain injury
Utilidad clínica de la monitorización mediante pupilometría cuantitativa en pacientes con daño cerebral agudo
Eusebio Camposa, Eva Esther Tejerina Álvarezb,c,
Corresponding author
evateje@gmail.com

Corresponding author.
, José Ángel Lorente Balanzab,c,d,e
a Terapia Intensiva, Hospital Regional ISSSTE 1° de Octubre, Mexico City, Mexico
b Servicio de Medicina Intensiva, Hospital Universitario de Getafe, Getafe, Madrid, Spain
c Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Spain
d Department of Bioingeniería, Universidad Carlos III, Madrid, Spain
e Departamento Clínico, Universidad Europea de Madrid, Madrid, Spain
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Tables (4)
Table 1. Normal pupillary values.
Tables
Table 2. Main studies assessing the correlation between quantitative pupillometry and intracranial pressure.
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Table 3. Main studies assessing the correlation of quantitative pupillometry and haematoma volume and/or midline shift.
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Table 4. Main studies assessing the correlation between quantitative pupillometry (QP) and cerebral oedema (CE).
Tables
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Abstract

Assessment of the pupillary reflex to light is essential in patients with acute brain injury, as pupillary abnormalities are associated with neurological impairment and elevated intracranial pressure. Manual assessment by headlamp is inaccurate, whereas quantitative pupillometry provides objective and accurate measurements of pupillary size and reactivity, anticipating severe neurological deterioration and allowing early intervention in life-threatening situations. The pupillary neurological index, a variable derived from automated pupillometry, correlates with intracranial pressure, allows monitoring of therapeutic response in trauma and status epilepticus, is associated with the severity of neurological damage and may serve as a predictor of unfavourable neurological prognosis. The aim of this review is to summarise the evidence on the clinical utility of monitoring by quantitative pupillometry in neurological emergencies.

Keywords:
Quantitative pupillometry
Acute brain injury
Intracranial hypertension
Resumen

La evaluación del reflejo pupilar a la luz es esencial en pacientes con daño cerebral agudo, ya que las anomalías pupilares se asocian con deterioro neurológico y presión intracraneal elevada. La evaluación manual con linterna es imprecisa, mientras que la pupilometría cuantitativa proporciona mediciones objetivas y precisas del tamaño y la reactividad pupilar, anticipando deterioros neurológicos graves y permitiendo intervenciones tempranas en situaciones de riesgo vital. El índice neurológico pupilar, variable derivada de la pupilometría automatizada, se correlaciona con la presión intracraneal, permite monitorizar la respuesta terapéutica en traumatismos y en status epilepticus, se asocia con la gravedad del daño neurológico y, puede servir como predictor de pronóstico neurológico desfavorable. El objetivo de esta revisión es resumir la evidencia sobre la utilidad clínica de la monitorización mediante la pupilometría cuantitativa en situaciones de emergencia neurológica.

Palabras clave:
Pupilometría cuantitativa
Daño cerebral agudo
Hipertensión intracraneal

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