Furosemide, when used in combination with positive end-expiratory pressure, facilitates the resorption of extravascular lung water in experimental hydrostatic pulmonary oedema

Acta Anaesthesiologica Scandinavica
C J WickertsG Hedenstierna

Abstract

The study aimed to establish whether furosemide given intravenously improved resorption of hydrostatic pulmonary oedema in 14 dogs mechanically ventilated with positive end-expiratory pressure (PEEP). Hydrostatic pulmonary oedema was created by simultaneous inflation of a left atrial balloon and rapid intravenous infusion of isotonic saline. The hydrostatic process was terminated by deflating the balloon and reducing the infusion rate. A PEEP of 10 cmH2O (1.0 kPa) was applied in all animals; in seven, furosemide was administered (diuretic group), 1 mg/kg intravenously as a bolus followed by an infusion of 0.5 mg/kg per hour, while the remaining seven dogs served as a control group. All dogs were studied for a period of 4 h. The extravascular lung water measured with the double indicator dilution technique was 28.3 +/- 3.8 (diuretic group) and 28.2 +/- 6.8 ml/kg (control group) during maximum oedema. It was reduced to 16.4 +/- 2.2 (diuretic group) vs 19.8 +/- 3.7 ml/kg (control group) after 4 h of resorption, P less than 0.05. Postmortem gravimetric values of extravascular lung water were 9.1 +/- 3.4 (diuretic group) vs 12.6 +/- 5.0 g/kg (control group). In the diuretic group the urinary output increased threefold, and haemoglob...Continue Reading

Associated Clinical Trials

References

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Related Concepts

Pulmonary Edema
Expiratory Airflow
Normal saline
Lung
Tang Hsi Ryu Syndrome
Autopsy
Diastolic Blood Pressure
Salix - substance
Serum Proteins
Ventilation-Perfusion Ratio

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