Integrated diagnostic algorithm for acute vertigo combining TiTrATE, STANDING, and HINTS: a validation study in the...

Area of Science:

• Neurology
• Emergency Medicine
• Diagnostic Accuracy

Background:

• Accurate diagnosis of acute vertigo (AV) in emergency settings is challenging due to diverse causes, including stroke and vestibular migraine.
• Current diagnostic practices for AV often require specialized expertise and equipment, limiting their use by non-specialists.

Purpose of the Study:

• To validate the "TiTrATE - STANDING Adapted" algorithm for diagnosing posterior circulation strokes in patients with acute vertigo.
• To assess the algorithm's accuracy compared to specialist diagnoses in an emergency setting.

Main Methods:

• Prospective validation and retrospective analysis of 67 acute vertigo patients.
• Objective oculomotor assessments (video oculography) and audiometry.
• Comparison of algorithm's diagnostic performance against specialist final diagnoses.

Main Results:

• The "TiTrATE - STANDING Adapted" algorithm achieved 90% sensitivity but 57.9% specificity, with a 62.7% global accuracy.
• High false positive rates were observed, with conditions like vestibular migraine and orthostatic hypotension frequently misclassified.
• The algorithm requires refinement to improve specificity and reduce misdiagnosis.

Conclusions:

• The "TiTrATE - STANDING Adapted" algorithm shows promise for acute vertigo stroke diagnosis but needs improvement for clinical implementation.
• Enhancements should include criteria for vestibular migraine and refined stroke exclusion guidelines.
• Further validation is essential to boost diagnostic precision and improve patient outcomes in emergency departments.