Do simple ventilation and gas exchange measurements predict early successful weaning from respiratory support in unselected general intensive care patients?

The value of respiratory variables as weaning predictors in the intensive care unit (ICU) is controversial. We evaluated the ability of tidal volume (Vtexp), respiratory rate (f), minute volume (MVexp), rapid shallow breathing index (f/Vt), inspired–expired oxygen concentration difference [(I–E)O2],...

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