López-Fermín J, Mendiola-Villalobos C, Bautista-Aguilar GA, González-Toribio RA, Deloya-Tomás E, Pérez NOR

Language: Spanish
References: 11
Page: 30-33
PDF size: 174.80 Kb.

ABSTRACT

Introduction: brain death is the irreversible and permanent cessation of brain stem and brain functions, a consequence of the absence of cerebral blood flow. Hospital units with limited resources have the disadvantage of not having a sector transducer, the necessary software, or trained personnel to perform the transcranial doppler, so an alternative could be the evaluation of the internal carotid artery in the extracranial region and the common carotid, for which only a linear transducer with pulsed Doppler and less training is required. Objective: to describe the changes in the flowchart of the internal carotid artery in the extracranial and common carotid regions in patients with brain death. Presentation of cases: based on the consensus of CARE guidelines, two patients with a diagnosis of brain death admitted to the Intensive Care Unit were included, where we evaluated changes in the flowchart of the internal carotid artery in the extracranial and common carotid regions. Results: ultrasound findings are described at the level of the common carotid and the internal carotid artery in the extracranial region, low velocity antegrade systolic peaks and even slower retrograde diastolic waves compatible with the diagnosis of brain death. Conclusion: Doppler ultrasound of the internal carotid artery in the extracranial and common carotid region could be used for the diagnostic approach of brain death in hospital units with limited resources. More studies are required to validate its usefulness.

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