Combining partial liquid ventilation with nitric oxide to improve gas exchange in acute lung injury

To assess the effects of increasing concentrations of inhaled nitric oxide (NO) during incremental dosages of partial liquid ventilation (PLV) on gas exchange, hemodynamics, and oxygen transport in pigs with induced acute lung injury (ALI). Prospective experimental study. Experimental intensive care...

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Bibliographic Details
Published in:Intensive care medicine 1997-02, Vol.23 (2), p.163-169
Main Authors: HOUMES, R.-J. M, HARTOG, A, VERBRUGGE, S. J. C, BÖHM, S, LACHMANN, B
Format: Article
Language:English
Subjects:
Administration, Inhalation
Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy
Anesthesiology
Animals
Biological and medical sciences
Breath tests
Catheters
Dose-Response Relationship, Drug
Drug Therapy, Combination
Emergency and intensive respiratory care
Female
Fluorocarbons - therapeutic use
Gases
Hemodynamics
Hemodynamics - drug effects
Intensive care
Intensive care medicine
Ketamine
Medical sciences
Nitric oxide
Nitric Oxide - administration & dosage
Nitric Oxide - therapeutic use
Perfluorocarbons
Prospective Studies
Pulmonary arteries
Pulmonary Gas Exchange - drug effects
Respiration, Artificial - methods
Respiratory Insufficiency - therapy
Surfactants
Swine
Veins & arteries
Ventilators
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Summary:To assess the effects of increasing concentrations of inhaled nitric oxide (NO) during incremental dosages of partial liquid ventilation (PLV) on gas exchange, hemodynamics, and oxygen transport in pigs with induced acute lung injury (ALI). Prospective experimental study. Experimental intensive care unit of a university. 6 pigs with induced ALI. Animals were surfactant-depleted by lung lavage to a partial pressure of oxygen in arterial blood (PaO2) < 100 mmHg. They then received four incremental doses of 5 ml/kg perflubron (Liqui-Vent). Between each dose the animals received 0, 10, 20, 30, 40, and 0 parts per million (ppm) NO. Blood gases, hemodynamic parameters, and oxygen delivery were measured after each dose of perflubron as well as after each NO concentration. Perflubron resulted in a dose-dependent increase in PaO2. At each perflubron dose, additional NO inhalation resulted in a further significant (ANOVA, p < 0.05) increase in PaO2, with a maximum effect at 30 +/- 10 ppm NO. The 5 ml/kg perflubron dose led to a significant decrease in mean pulmonary artery pressure, which decreased further with higher NO concentrations. PLV can be combined with NO administration and results in a cumulative effect on arterial oxygenation and to a decrease in pulmonary artery pressure, without having any deleterious effect on measured systemic hemodynamic parameters.
ISSN:0342-4642
1432-1238
DOI:10.1007/s001340050311