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Transcranial Doppler in a Hispanic-Mestizo population with neurological diseases: a study of sonographic window and its determinants

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dc.contributor.author Brunser, Alejandro
dc.contributor.author Silva, Claudio
dc.contributor.author Carcamo, Daniel
dc.contributor.author Muñoz, Paula
dc.contributor.author Hoppe, Arnold
dc.contributor.author Olavarría, Verónica
dc.contributor.author Diaz, Violeta
dc.contributor.author Abarca, Juan
dc.date.accessioned 2017-05-24T16:18:49Z
dc.date.available 2017-05-24T16:18:49Z
dc.date.issued 2012
dc.identifier.citation Brain Behav. 2012 May; 2(3): 231–236
dc.identifier.uri http://hdl.handle.net/11447/1314
dc.identifier.uri http://dx.doi.org/10.1002/brb3.46
dc.description.abstract Between 5% and 37% of patients are not suitable for transtemporal insonation with transcranial Doppler (TCD). This unsuitability is particularly frequent in elderly females and non-Caucasians. We aim to evaluate TCD efficiency in a mixed Hispanic population in Santiago, Chile and to determine whether factors associated with the presence of optimal windows depend exclusively on patient-related elements. Seven hundred forty-nine patients were evaluated with power mode TCD. Optimal temporal windows (TWs) included detection of the middle, anterior, posterior cerebral arteries and terminal carotid. The patient's age and sex, the location of the examination, the time of day, whether the test was conducted on weekends and whether mechanical ventilation was used were recorded. Percentages of optimal windows were calculated. Examinations were deemed ideal if both TWs were optimal. TWs were obtained in 82% of cases. In univariate analyses, male sex (P < 0.001), an age below 60 years (P < 0.0001) and mechanical ventilation (P= 0.04) correlated with ideal TWs. Using logistic regression where dependent variable was a non-ideal window only male sex odds ratio (OR) 2.3 (1.51–3.45) and age below 60 OR 13.8 (7.8–24.6) were statistically significant. Our findings indicate that Hispanic populations have detection rates for TWs similar to Europeans and are affected by patient-related elements.
dc.format.extent 6
dc.language.iso en_US
dc.publisher John Wiley & Sons
dc.subject Doppler ultrasound
dc.subject temporal bone window
dc.subject transcranial Doppler sonography
dc.title Transcranial Doppler in a Hispanic-Mestizo population with neurological diseases: a study of sonographic window and its determinants
dc.type Artículo


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