@article{article_482773, title={The Power of Diagnostic Tests for Benign Paroxysmal Positional Vertigo: A Syndromic Approach}, journal={Konuralp Medical Journal}, volume={11}, pages={17–23}, year={2019}, DOI={10.18521/ktd.482773}, author={Başak, Hatice Sema and Doğan, Özkan and Başak, Okay}, keywords={Benign paroxysmal positional vertigo,diagnosis,syndromic approach}, abstract={<p class="MsoNormal" style="line-height:150%;"> <b> <span lang="en-us" style="font-size:12pt;line-height:150%;font-family:’Times New Roman’, serif;" xml:lang="en-us">Objective: </span> </b> <span lang="en-us" style="font-size:12pt;line-height:150%;font-family:’Times New Roman’, serif;" xml:lang="en-us">
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). </span> </p> <p> </p> <p class="MsoNormal" style="line-height:150%;"> <b> <span lang="en-us" style="font-size:12pt;line-height:150%;font-family:’Times New Roman’, serif;" xml:lang="en-us">Methods: </span> </b> <span lang="en-us" style="font-size:12pt;line-height:150%;font-family:’Times New Roman’, serif;" xml:lang="en-us">
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. </span> </p> <p> </p> <p class="MsoNormal" style="line-height:150%;"> <b> <span lang="en-us" style="font-size:12pt;line-height:150%;font-family:’Times New Roman’, serif;" xml:lang="en-us">Results: </span> </b> <span lang="en-us" style="font-size:12pt;line-height:150%;font-family:’Times New Roman’, serif;" xml:lang="en-us">
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. </span> </p> <p> </p> <p class="MsoNormal" style="line-height:150%;"> <b> <span lang="en-us" style="font-size:12pt;line-height:150%;font-family:’Times New Roman’, serif;" xml:lang="en-us">Conclusion: </span> </b> <span lang="en-us" style="font-size:12pt;line-height:150%;font-family:’Times New Roman’, serif;" xml:lang="en-us">
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. </span> </p> <p> </p>}, number={1}, publisher={Duzce University}