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

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dc.contributor.authorBrunser, Alejandro
dc.contributor.authorSilva, Claudio
dc.contributor.authorCarcamo, Daniel
dc.contributor.authorMuñoz, Paula
dc.contributor.authorHoppe, Arnold
dc.contributor.authorOlavarría, Verónica
dc.contributor.authorDiaz, Violeta
dc.contributor.authorAbarca, Juan
dc.date.accessioned2017-05-24T16:18:49Z
dc.date.available2017-05-24T16:18:49Z
dc.date.issued2012
dc.description.abstractBetween 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.extent6
dc.identifier.citationBrain Behav. 2012 May; 2(3): 231–236
dc.identifier.urihttp://hdl.handle.net/11447/1314
dc.identifier.urihttp://dx.doi.org/10.1002/brb3.46
dc.language.isoen_US
dc.publisherJohn Wiley & Sons
dc.subjectDoppler ultrasound
dc.subjecttemporal bone window
dc.subjecttranscranial Doppler sonography
dc.titleTranscranial Doppler in a Hispanic-Mestizo population with neurological diseases: a study of sonographic window and its determinants
dc.typeArtículo

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