2011, Number 1
Otorrinolaringología 2011; 56 (1)
New techniques in the diagnosis of patients with vertigo
Said MJ, Izita RA
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Language: Spanish
References: 11
Page: 1-10
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ABSTRACT
Background: Regarding the evaluation of nystagmus, many authors have reported useful studies, with craniocorpography tests and computerized electronystagmography, vestibular function of the vestibulospinal and vestibulo retinoocular systems has been studied.Objectives: To evaluate the vestibular function of patients with vertigo and tinnitus by craniocorpography tests, electronystagmography Doppler ultrasound scan of head and neck as well as to guide the establishment of improved vestibular diagnosis.
Patients and method: In the Otology and Neurophysiology Clinic craniocorpography, electronystagmography Doppler ultrasound scan of head and neck were done in 1,343 patients with vertigo; 48.1% of cases had a history of vascular origin, in addition, diseases secondary to hydrodynamic alterations were prevalent. We used the statistical test of the Pearson chi square to analyze variables of the craniocorpography tests, electronystagmography scan and Doppler ultrasonography of head and neck.
Results: Claussen et al. reported important parameters in their diagnosis by craniocorpography tests, electronystagmography Doppler ultrasound scan of head and neck. Slow blood flow of the vertebral arteries, usually secondary to atherosclerotic disease, did not cause symptoms, in 80% of cases, due to collateral circulation, especially to the recirculation of the arterial or basilar logs. In Mexico there were 14 total occlusions and 160 significant stenosis (70%) after 3,194 patients and 1,537 internal carotid arteries were studied. In this study the vestibulospinal system of 51% of the patients was functionally normal in craniocorpography test. It was found that 31% of cases had a lesion in the peripheral nervous system and that 18% had a type of central lesion. The main symptoms were dizziness (77%) and tinnitus (40%).
Conclusions: Doppler ultrasonography of head and neck, a qualitative and quantitative method is easy, quick and harmless to evaluate the existence of vascular diseases related to the symptom of vertigo; besides, the modern otoneurological physician must correlate all otoneurological studies done in the patient with vertigo to establish an accurate diagnosis.
REFERENCES