Transcranial Doppler ultrasound measurements of cerebral hemodynamic parameters in healthy volunteers at 2850 meters altitude

Título traducido de la contribución: Parámetros hemodinámicos cerebrales, determinados mediante Doppler transcraneal, en un grupo de voluntarios sanos a 2.850 metros de altura

C. E. Scherle Matamoros, D. Rivero Rodríguez

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

1 Cita (Scopus)

Resumen

Background: Transcranial Doppler ultrasound (TDU) is useful in cerebrovascular patients. 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. Objective: To report the cerebral hemodynamic parameters measured by TDU in subjects who live in Quito, Ecuador (altitude 2850 meters). Material and methods: 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. 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 recorded patients’ age, sex, and hematocrit. We analyzed cerebrovascular hemodynamic parameters by sex and age group. Results: No significant differences between hemispheres were observed in mean flow velocities, except in the anterior cerebral arteries with right predominance. Flow velocities were higher in women and in the youngest age group. No significant differences in the pulsatility indices were found between sexes or between age groups. The flow velocities in this series are lower than those reported for other series. Conclusions: The hemodynamic parameters in this series are lower than in other series and are influenced by the altitude, age, and sex.

Título traducido de la contribuciónParámetros hemodinámicos cerebrales, determinados mediante Doppler transcraneal, en un grupo de voluntarios sanos a 2.850 metros de altura
Idioma originalInglés
Páginas (desde-hasta)405-411
Número de páginas7
PublicaciónRadiologia
Volumen61
N.º5
DOI
EstadoPublicada - 1 sep. 2019

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