Descripción de los cambios en la velocidad media de flujo sanguíneo cerebral en posición supino y sedente, en pacientes con hemorragia subaracnoidea aneurismática con vasoespasmo asintomático o sin vasoespasmo. Serie de casos

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dc.contributor.authorMerino, Catalina
dc.contributor.authorHeap, Pía
dc.contributor.authorVergara, Valentina
dc.contributor.authorYáñez, Alonso
dc.contributor.authorRivera, Rodrigo
dc.date.accessioned2017-03-02T15:37:15Z
dc.date.available2017-03-02T15:37:15Z
dc.date.issued2014
dc.description.abstractEarly mobilization in intensive care units (ICU) provides respiratory, neurological and cardiovascular benefits in hospitalized patients. However, the orthostatic effects of changing from a supine to a sitting position may interfere with cerebral hemodynamics of patients with aneurysmal subarachnoid hemorrhage (aSAH). Aim: To describe the changes in mean cerebral blood flow velocity (MCBFV) in supine and sitting position, in adult patients with aSAH, with asymptomatic vasospasm (AVS) or without vasospasm (VS) at a neurosurgical ICU. Material and Methods: Descriptive case series study in 21 patients with aSAH, both with and without VS. They were positioned in a supine 30° position and then seated at the edge of bed for six minutes. MCBFV was measured by transcranial Doppler (TCD), and hemodynamic variables in both positions were registered. After this basal assessment and for 21 days after the episode of SAH, patients were seated once a day and signs of VS were recorded. Results: No significant changes in MCBFV or hemodynamic variables were detected during position changes, except for an increase in heart rate in the sitting position. No patient with AVS at the onset, had symptomatic VS during the 21 days of follow up when patients were seated. Among patients with a normal MCBFV at baseline, five patients (24%) had VS at a mean of three days after the first time that they were seated on the edge of bed. Conclusions: Sitting patients at the edge of the bed is a safe mobilization alternative for patients who suffered aSAH who did not have VS or had AVS.
dc.format.extent8
dc.identifier.citationRevista Médica de Chile,July 2014, vol.142,p.1502-1509
dc.identifier.urihttp://hdl.handle.net/11447/984
dc.identifier.urihttp://dx.doi.org/10.4067/S0034-98872014001200002
dc.language.isospa
dc.publisherSociedad Médica de Santiago
dc.subjectBlood Flow Velocity
dc.subjectIntracraneal
dc.subjectSubarachnoid Hemorrhage
dc.subjectSupine Position
dc.subjectUltrasonography, Doppler, transcranial
dc.titleDescripción de los cambios en la velocidad media de flujo sanguíneo cerebral en posición supino y sedente, en pacientes con hemorragia subaracnoidea aneurismática con vasoespasmo asintomático o sin vasoespasmo. Serie de casos
dc.title.alternativeChanges in cerebral blood flow velocity in supine and sitting position in patients with aneurysmal subarachnoid hemorrhage
dc.typeArtículo

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