Arquivos brasileiros de cardiologia
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Arq. Bras. Cardiol. · Jul 2005
Comparative Study[Weaning from mechanical ventilation by using pressure support or T-tube ventilation. Comparison between patients with and without heart disease].
To assess cardiorespiratory variables during weaning from mechanical ventilation by using the T-tube and pressure support techniques, and to compare them in groups of patients with and without heart disease. ⋯ When comparing pressure support ventilation with T-tube ventilation, a better response was observed in the measurements of the respiratory and oxygenation parameters when using pressure support ventilation. No significant difference was observed in the measurements of cardiovascular parameters. In both weaning techniques, patients with heart disease had tachycardia less frequently, more alterations in the ST segment, and a greater tendency towards the occurrence of arrhythmias.