Se reclutaron para el estudio 47 voluntarios, sin antecedentes ni evidencia clínica de ictus, hipertensión arterial, enfermedades metabólicas o hematológicas. Objetivoĭescribir los parámetros hemodinámicos cerebrales medidos mediante DTC en sujetos que habitan en la ciudad de Quito. Sus resultados, además de ser dependientes del operador, pueden estar influenciados por variables fisiológicas y anatómicas, así como por la altura a la que se encuentra el sujeto estudiado. The hemodynamic parameters in this series are lower than in other series and are influenced by the altitude, age, and sex.Įl Doppler transcraneal (DTC) es una herramienta útil en la atención del paciente cerebrovascular. The flow velocities in this series are lower than those reported for other series. No significant differences in the pulsatility indices were found between sexes or between age groups. Flow velocities were higher in women and in the youngest age group. No significant differences between hemispheres were observed in mean flow velocities, except in the anterior cerebral arteries with right predominance. We analysed cerebrovascular hemodynamic parameters by sex and age group. We recorded patients’ age, sex, and hematocrit. Thus, we recorded mean cerebral blood flow velocity, peak systolic flow velocity, end-diastolic flow velocity, and pulsatility indices in 45 patients (28 (62.2%) women mean age, 35.9 years). We recruited 47 volunteers with no history or clinical evidence of stroke, hypertension, metabolic disorders, or hematologic disorders 2 patients were excluded because they did not have a viable cranial window for TDU study. To report the cerebral hemodynamic parameters measured by TDU in subjects who live in Quito, Ecuador (altitude 2850 m). TDU findings are operator-dependent they can also be influenced by anatomical and physiological variables as well as by the altitude at which the study is done. Transcranial Doppler ultrasound (TDU) is useful in cerebrovascular patients.
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