Audiometry Program, Ataturk Health Services Vocational High School, Ege University, Izmir, Turkey.
Otorhinolaryngology Department, School of Medicine, Ege University, Izmir, Turkey.
Acta Otolaryngol. 2020 Dec;140(12):1007-1012. doi: 10.1080/00016489.2020.1810314. Epub 2020 Aug 31.
Caloric test is one of the tests which evaluates the low frequency component of vestibular system for both diagnosis of the BPV and UPV.
The main objectives are to determine and increase the diagnostic value of BPV and UPV by evaluating the high frequency horizontal VOR parameters with HIMP, SHIMP and fHIT, to compare test results with healthy controls, and to evaluate correlation of these tests with vertigo dizziness imbalance (VDI) questionnaire results in these patients.
Six patients with BPV, ten patients with UPV and fifteen healthy controls were recruited. High frequency hVOR were evaluated with HIMP, SHIMP and fHIT. Vestibular symptoms and quality of life were assessed with VDI Questionnaire.
Lower percentage of correct answers, and lower VOR gains were obtained in affected sides for BPV and UPV. HIMP elicited compensatory saccades in patients, whereas SHIMP elicited large anticompensatory saccades in controls and unaffected side of UPV, but no saccades in BPV. No correlation was found between VDI outcomes and all tests.
The results show that all tests are complementary each other and able to identify the affected labyrinth and to show residual vestibular function. These tests are thought to be important in the vestibular rehabilitation process.
热量测试是评估前庭系统低频成分的测试之一，可用于诊断 BPPV 和 UPD。
主要目的是通过评估高频水平前庭眼动反射（VOR）参数 HIMP、SHIMP 和 fHIT 来确定和提高 BPPV 和 UPD 的诊断价值，将这些测试的结果与健康对照组进行比较，并评估这些测试与这些患者的眩晕失衡问卷（VDI）结果的相关性。
招募了 6 例 BPPV 患者、10 例 UPD 患者和 15 名健康对照组。使用 HIMP、SHIMP 和 fHIT 评估高频 hVOR。使用 VDI 问卷评估前庭症状和生活质量。
BPPV 和 UPD 患侧的正确答案百分比较低，VOR 增益较低。HIMP 可在患者中引起代偿性扫视，而 SHIMP 可在对照组和 UPD 未受影响侧引起大的反补偿扫视，但在 BPPV 中则没有扫视。VDI 结果与所有测试均无相关性。
结果表明，所有测试均相互补充，能够识别受累的迷路，并显示残留的前庭功能。这些测试被认为在前庭康复过程中很重要。
