Dizziness, Vertigo
Conditions
Keywords
Dizzy, Vertigo, Stroke, Machine learning
Brief summary
This study aims to validate a machine learning model that stratifies the risk of stroke in patients who present to the emergency department with dizziness or vertigo.
Detailed description
This is a cross-sectional, hospital-based study, with no randomization procedure. Over a 21-month period, approximately 600 subjects will be enrolled. The study will assess the risk of stroke in each patient using a machine-learning model. To detect ischemic or hemorrhagic stroke, each patient will undergo a non-contrast brain magnetic resonance imaging study. The predictive performance of the machine-learning model will be evaluated in terms of accuracy, precision, recall, F1 score, and area under the receiver operating characteristics curve.
Interventions
RADIATIONMagnetic resonance imaging
Brain magnetic resonance imaging
Sponsors
National Science and Technology Council
Chiayi Christian Hospital
Study design
Observational model
COHORT
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Presenting to the emergency department with dizziness or vertigo * Aged ≥ 20 * Dizziness or vertigo lasting for at least 1 hour and \< 7 days * Persistent dizziness or vertigo at the time of the examination at the emergency department
Exclusion criteria
* Having 5 or more prior episodes similar in quality, intensity, and duration to the current symptoms, with at least one episode more than a year prior and one within the past year * Having frank stroke-like symptoms or signs, such as hemiparesis, facial asymmetry, dysarthria, dysphasia, ataxia, gaze palsy * Consciousness disturbance, Glasgow coma scale \< 13 * Severe dementia * Recent stroke within 3 months * Dizziness or vertigo thought to be the result of head injury, hypotension, medication/drug intoxication, hypoglycemia, electrolyte imbalance, anemia, hepatic encephalopathy, hydrocephalus, etc * Concomitant head or neck trauma * Severe degenerative cervical spondylosis * Having contraindications to magnetic resonance imaging examination
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of participants with stroke | Between 24 hours and 14 days after the emergency department visit | Number of participants with ischemic or hemorrhagic stroke confirmed by brain magnetic resonance imaging |
Contacts
Primary ContactSheng-Feng Sung, MD, PhD
Outcome results
None listed