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Updated: May 22, 2026

SECONDs Administration Guidelines: A Fast Tool to Assess Consciousness in Brain-injured Patients
Published on: February 6, 2021
[Structured differential diagnosis of a transient impairment of consciousness]
I Hansen1, P Mélon, E Creemers
1Service de Neurologie, CHU de Liège.
Insights
Fainting can be caused by carotid artery disease. An 83-year-old woman
Area of Science:
- Neurology
- Cardiology
- Vascular Medicine
Background:
- Transient impairment of consciousness requires careful diagnosis to differentiate causes like fainting, seizures, or metabolic issues.
- Medical history and physical examination are crucial initial steps.
Observation:
- An 83-year-old woman experienced a transient loss of consciousness.
- Vascular investigation revealed a subocclusive stenosis in one of her internal carotid arteries.
Findings:
- The patient's presentation suggests a potential link between carotid artery stenosis and transient loss of consciousness.
- This case highlights the importance of considering vascular causes in elderly patients with syncope.
Implications:
- Understanding the relationship between carotid artery disease and fainting is vital for accurate diagnosis and treatment.
- This case underscores the need for thorough vascular assessment in patients presenting with unexplained transient loss of consciousness.
Abstract:
Transient impairment of consciousness frequently prompts the patient to consult a neurologist or a cardiologist. Detailed medical history and physical examination allow to distinguish fainting from epileptic seizure, metabolic or psychogenic events. We report the history of an 83-year-old woman who presented a transient loss of consciousness.The vascular, investigation demonstrated a subocclusive stenosis of one of the internal carotid arteries. We shall consider the differential diagnosis of transient impairment of consciousness and discuss the relationship between fainting and carotid artery disease.
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