Venous air embolism: does the site of embolism influence the hemodynamic changes?
Artigo
em Inglês
| IMSEAR
| ID: sea-121730
ABSTRACT
Three hundred and ninety-seven patients undergoing posterior cranial fossa surgery in the sitting position were prospectively studied to evaluate the incidence of venous air embolism (VAE) and its effects on hemodynamics. End-tidal carbon dioxide (ETC02) tension was monitored to diagnose VAE. A sudden and sustained decrease in ETC02 of more than 5 mmHg, in the absence of sudden hypovolemia, was presumed to be the result of VAE. The site of probable air entrainment (whether muscle, bone or tumor) was noted. Hemodynamic consequences were managed symptomatically. ETC02 monitoring detected VAE in 22% of the patients. The highest incidence of embolism resulted from muscles and tumor (40% in each case). Forty-two per cent of patients developed hypotension during the embolic episode (systolic BP less than 100 mmHg). Ten per cent of patients developed ventricular arrhythmias during the embolic episode. Air aspiration was successful in 4.8%. There were no statistically significant differences in the frequency of VAE among the different groups (P>0.05). Also, the frequency of hypotension and ventricular arrhythmias were not significantly different, irrespective of the source of VAE (P>0.05). The general condition of the patients in the preoperative stage had no influence on the incidence of embolism, hypotension or ventricular arrhythmias.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Postura
/
Veias Cerebrais
/
Idoso
/
Feminino
/
Humanos
/
Masculino
/
Dióxido de Carbono
/
Circulação Cerebrovascular
/
Criança
/
Pré-Escolar
Tipo de estudo:
Estudo de incidência
/
Estudo prognóstico
Idioma:
Inglês
Ano de publicação:
2003
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS