Cognitive dysfunction after total knee arthroplasty: effects of intraoperative cerebral embolization and postoperative complications.
J Arthroplasty
; 20(6): 763-71, 2005 Sep.
Article
em En
| MEDLINE
| ID: mdl-16139714
ABSTRACT
Cerebral emboli identified as high-intensity transient signals (HITS) occur during total knee arthroplasty (TKA). Their effects on cognitive outcome remain speculative. Intraoperative HITS and postoperative complications were correlated with the cognitive function of TKA patients. Cognitive function was assessed both before and after surgery (1 week and 3 months). High-intensity transient signals occurred in 22 of 37 patients. Counts of HITSs were higher in patients with sonographically detected intracardiac shunts. Cognitive dysfunction was found in 41% of patients at 1 week, but in only 18% at 3 months. High-intensity transient signal counts were not associated with the prevalence of cognitive deficits. At 1 week, 58% of patients with cognitive deficits had at least 1 postoperative complication (6% in nondeficit patients). All cognitively impaired patients at 3 months had complications (17% in the nondeficit group). This raises the possibility that postoperative complications might be associated with cognitive dysfunction in TKA patients.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cognição
/
Artroplastia de Quadril
/
Embolia Intracraniana
/
Complicações Intraoperatórias
Tipo de estudo:
Etiology_studies
/
Risk_factors_studies
Limite:
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article