[Detection of microemboli by transcranial Doppler sonography after carotid endarterectomy].
No Shinkei Geka
; 25(9): 791-4, 1997 Sep.
Article
en Ja
| MEDLINE
| ID: mdl-9300446
ABSTRACT
Transcranial Doppler sonography (TCD), a non-invasive monitoring technique, has potential for detecting microemboli caused by the extracranial internal carotid artery. Many previous reports have shown that TCD-detected microemboli may be a risk factor for stroke. The main purpose of this study is to verify whether microemboli cease after carotid endarterectomy (CEA). TCD monitoring was performed in 43 cases before and after CEA. TCD monitoring was carried out for an hour at the ipsilateral middle cerebral artery of each case using a 2-MHz pulse-wave transcranial Doppler device, and high intensity transient signals were counted as microemboli. Microemboli were detected preoperatively in 10 cases (23.3%). Microemboli were not detected in any case immediately after CEA, in either the subacute stage (from 14 to 21 days after CEA) or in the chronic stage (more than 3 months after CEA). In the acute stage (from 3 to 7 days after CEA), microemboli were detected in three cases (7.0%). The rate of TCD-detected microembolic was always significantly reduced after CEA. TCD monitoring can be helpful in assessing the effect of CEA for prevention of stroke by removing the suspected source of microemboli.
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Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
2_ODS3
Problema de salud:
2_muertes_prematuras_enfermedades_notrasmisibles
Asunto principal:
Trombosis de las Arterias Carótidas
/
Endarterectomía Carotidea
/
Ultrasonografía Doppler Transcraneal
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Risk_factors_studies
Límite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
Ja
Revista:
No Shinkei Geka
Año:
1997
Tipo del documento:
Article