Patients with a new episode of vertigo and/or episodic vestibular syndrome in general practice Signs and Symptoms Dizziness and giddiness
Conditions
Interventions
First, the researchers will perform a systematic review (I) to assess the empirical evidence on diagnostic tests for patients with vertigo in general practice. The most promising tests will be studied
Sponsors
Amsterdam UMC Location VUmc
Eligibility
Sex/Gender
All
Age
18 Years to 120 Years
Inclusion criteria
Inclusion criteria: 1. Aged 18 years and over 2. New episode of vertigo and/or episodic vestibular syndrome (definition: see below) 3. Presentation of symptoms during (telephone) consultation or home visit Definition of vertigo: The VERDI study will adopt the nomenclature of the Bárány society, the leading international organization for clinicians and researchers involved in vestibular medicine. The Bárány society previously realized the International Classification of Vestibular Disorders (ICVD), a uniform way to describe vestibular symptoms. The VERDI study will focus on patients with vertigo (defined by the ICVD as “the sensation of self-motion when no self-motion is occurring or the sensation of distorted self-motion during an otherwise normal head movement”) and/or episodic vestibular syndrome (defined by the ICVD as “clinical syndrome of transient vertigo, dizziness, or unsteadiness lasting seconds to hours, occasionally days, and generally including features suggestive of temporary, short-lived vestibular system dysfunction”). When assessing a patient with vestibular symptoms, the Bárány society recommends focusing on timing (onset, duration, and evolution of symptom) and triggers (actions, movements, or situations that provoke the onset of symptoms. During the diagnostic accuracy study, the researchers will investigate the diagnostic value of timing, triggers, and other (individual and combinations of) items of history taking.
Exclusion criteria
Exclusion criteria: 1. Serious comorbid conditions that preclude participation in the VERDI study (judgement of patient’s GP) 2. Severe cognitive impairment (judgement of patient’s GP) 3. Insufficient mastery of Dutch and English language
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Diagnostic accuracy is measured using sensitivity, specificity, positive and negative predictive values, positive and negative likelihood ratios, and diagnostic odds ratios at a single timepoint | — |
Secondary
| Measure | Time frame |
|---|---|
| The methodological quality of diagnostic accuracy studies, measured using the revised Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2) checklist at a single timepoint | — |
Countries
Netherlands
Outcome results
None listed