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Ann Card Anaesth ; 2010 Sept; 13(3): 236-240
Artigo em Inglês | IMSEAR | ID: sea-139537

RESUMO

Rapid right ventricular pacing is safe, effective, and established method to provide balloon stability during balloon aortic valvuloplasty (BAV). Controlled transient respiratory arrest at this point of time may further reduce left ventricular stroke volume, providing an additional benefit to maintain balloon stability. Two groups were studied. Among the 10 patients, five had rapid pacing alone (Group A), while the other five were provided with cessation of positive pressure breathing as well (Group B). The outcomes of BAV in the two groups of patients were studied. One patient in Group A had failed balloon dilatation even after the fourth attempt, while in Group B there were no failures. The peak systolic gradient reduction was higher in Group B (70.05% in comparison to 52.16% of group A). In Group A, five subjects developed aortic regurgitation (grade 2 in four and grade 3 in one, while no grade 3 aortic regurgitation developed in any patient in Group B). Controlled transient respiratory arrest along with rapid ventricular pacing may be effective in maintaining balloon stability and improve the outcome of BAV.


Assuntos
Estenose da Valva Aórtica/cirurgia , Pressão Sanguínea/fisiologia , Débito Cardíaco/fisiologia , Estimulação Cardíaca Artificial , Cateterismo/métodos , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Ventilação com Pressão Positiva Intermitente , Masculino , Oxigênio/sangue , Mecânica Respiratória/fisiologia , Estudos Retrospectivos , Função Ventricular Esquerda/fisiologia
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