Monothermal Caloric Screening Test Performance: A Relative Operating Characteristic Curve Analysis
| Autor: | David G. Cyr, Faith W. Akin, Owen D. Murnane, Susan G. Lynn |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Adult
Male medicine.medical_specialty Engineering Adolescent genetic structures Screening test Audiology Sensitivity and Specificity Young Adult Speech and Hearing Nystagmus Physiologic Caloric Tests medicine Retrospective analysis Humans Mass Screening False Positive Reactions Child Simulation Aged Retrospective Studies Aged 80 and over business.industry Medical record Curve analysis Reproducibility of Results Caloric theory Middle Aged Reference Standards Large sample Vestibular Diseases Otorhinolaryngology Female Relative operating characteristic Vestibule Labyrinth business |
| Zdroj: | Ear & Hearing. 30:313-319 |
| ISSN: | 0196-0202 |
| DOI: | 10.1097/aud.0b013e31819c3ec7 |
| Popis: | The objective of the present study was to evaluate the performance of the monothermal caloric screening test in a large sample of patients.A retrospective analysis of the medical records of 1002 consecutive patients who had undergone vestibular assessment at the Mayo Clinic during the years 1989 and 1990 was conducted. Patients with incomplete alternate binaural bithermal (ABB) caloric testing, congenital or periodic alternating nystagmus, or bilateral vestibular loss were excluded from the study. Clinical decision theory analyses (relative operating characteristic curves) were used to determine the accuracy with which the monothermal warm (MWST) and monothermal cool (MCST) caloric screening tests predicted the results of the ABB caloric test. Cumulative distributions were constructed as a function of the cutoff points for monothermal interear difference (IED) to select the cutoff point associated with any combination of true-positive and false-positive rates.Both MWST and MCST performed well above chance level. The test performance for the MWST was significantly better than that of the MCST for three of the four ABB gold standards. A 10% IED cutoff point for the MWST yielded a false-negative rate of either 1% (UWor=25%) or 3% (UWor=20%). The use of a 10% IED (UWor=25%) for the MWST would have resulted in a 40% reduction (N = 294) in the number of ABB caloric tests performed on patients without a unilateral weakness.The results of this study indicated that the MWST decreases test time without sacrificing the sensitivity of the ABB caloric test. |
| Databáze: | OpenAIRE |
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