ULTRASONOGRAPHY DOPPLER TRANSCRANEAL AND EXTRACRANEAL OF HEAD AND NECK IN THE VERTIGO PATIENTS

Authors

Dr. med. Jorge Said Martinez (Mexico D.F., Mexico)
Dr.med. Alfonso Izita (Mexico D.F., Mexico)

Proceedings

XLI Conress of the NES - Praha - Czechnia

Topics

Neurootology
Equilibrium
Diseases
Neurootology
Neurology
Diseases
Neurootology
Equilibrium
Equilibriometric tests
Neurootology
Equilibrium
Neurootology
Neurology
Neurootology

Keywords

ULTRASONOGRAPHY DOPPLER, Vertigo.

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Abstract

The left ventricle is a pump which applies pressure to the circuit on an intermittent way (with each systolic ejection) and sets a pattern of pulsate flow. In systole (Maximum Systolic Speed, MSS), the elastic arterial wall is strained (Capacitance) to store certain volume of blood, which will be returned to the circulation during the diastole (Final Diastolic Speed, FDS), when the artery returns to its recess caliper (kinetic energy).1-6 The supraorbitary flow is the result of the hydrodynamic compensation between the internal and external carotid system.7-10 The vertebral arteries together with the internal carotids are in charge of the irrigation of the cerebral trunk, which is the place of settlement of the centers of coordination of the balance. Using Doppler´s Ultrasound Transcraneal and Extracraneal there have been found a prevalence greater than 50% in population within 45 and 65 years old with an incidence of 3 to 7%. 11-15 Upon researching 2,500 patients suffering from vertigo (Drs.Bergman and Bertora) found that 48.16 % of the cases have backgrounds of vascular origin prevailing within this group pathologies which are secondary to the process of hydrodynamic alternations within the capillary with averages of 20.92% for hypotension and 20.24% for hypertension.16-24 In 90% of the cases, the symptom of vertigo can onset in any of its expressions from lack of stability up to the total loss of the balance as a consequence.25, 26
This study has motivated the research of the circulatory hydrodynamic through the USD´s technology in the patient suffering from vertigo, in order to determine and orientate the vascular etiology of the ailment.