The Power of Diagnostic Tests for Benign Paroxysmal Positional Vertigo: A Syndromic Approach
Abstract
Objective: To determine diagnostic power of the symptoms and findings of patients with complaints of dizziness/balance disorder and to identify the syndromic diagnostic components for the benign paroxysmal positional vertigo (BPPV).
Methods: A retrospective methodological study of 147 adult patients with dizziness/balance disorder visiting the Otorhinolaryngology Clinic between January and December 2014 was conducted. The symptoms, signs and laboratory test results of the patients in BPPV and non-BPPV groups were compared and analyzed through sensitivity, specificity, predictive values, likelihood ratios, post-test odds and probabilities, logistic regression analysis and ROC. The criterion indices having high post-test probability values were determined.
Results: The most common three diagnoses were psychogenic vertigo (34.0%), peripheral vertigo of unknown origin (22.4%), and BPPV (16.3%). Five complaints and findings were found to have statistically significant diagnostic power: characteristic dizziness complaint, dizziness attacks lasting less than two minutes, dizziness being present for less than one week, supine roll and Dix-Hallpike test positivity. The post-test probability increased to 95.4% in patients with attacks lasting less than two minutes and dizziness lasting less than one week, when the Dix-Hallpike test was positive (triple-index positivity). According to the logistic regression model, positive result of the Dix-Hallpike test increased the probability of BPPV by 65.6 times. Accuracy of the model was 92.5%, with the area under the ROC curve of 0.891.
Conclusion: Our study results have provided evidence basis for diagnostic power of the Dix Hallpike test and, to a lesser extent, of the supine roll test.
Keywords
References
- 1. Bhattacharyya N, Baugh RF, Orvidas L, et al. Clinical practice guideline: Benign paroxysmal positional vertigo. Otolaryngol Head Neck Surgery. 2008;139:47-81.
- 2. Kerber KA, Fendrick AM. The evidence base for the Evaluation and Management of Dizziness. NIH Public Access. J Eval Clin Pract. 2010;16: 86-91.
- 3. Pettifor A, Walls J, Wilkins V, Raghunathan P. How effective is syndromic management of STDs. A review of current studies. Sexually Transmitted Diseases. 2000;27:371-85.
- 4. Ranjan R, Sharma AK, Mehta G. Evaluation of WHO diagnostic algorithm for reproductive tract infections among married women. Indian Journal of Community Medicine. 2003;28(2):81-4
- 5. Bengi AM, Mevsim V, Yıldırım E. [Syndromic approach to vulvovaginal candidiasis.] Türk Aile Hek Derg. 2014; 18: 175-88.
- 6. Freeman TR. In McWhinney’s Textbook of Family Medicine. 4th edition. New York: Oxford University Press; 2016. 203-264 pp.
- 7. Crane BT, Minor LB. Peripheral Vestibular Disorders. In: Cummings Otolaryngology Head Neck Surgery. Eds: Flint PW, Haughey BH, Lund VJ, Niparko JK, Robbins T, Thomas JR, Lesperance MM. 6th edition. Elsevier; 2015: 2548-2566 pp.
- 8. Al Saif A, Alsenany S. Sensitivity and specificity of the amer dizziness diagnostic scale (adds) for patients with vestibular disorders. J Phys Ther Sci. 2015;27: 91-6.
Details
Primary Language
English
Subjects
Health Care Administration
Journal Section
Research Article
Publication Date
March 25, 2019
Submission Date
November 14, 2018
Acceptance Date
February 3, 2019
Published in Issue
Year 2019 Volume: 11 Number: 1


