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The effect of nasal continuous positive airway pressure on plasma endothelin-1 concentrations in patients with severe cardiogenic pulmonary edema

, : The effect of nasal continuous positive airway pressure on plasma endothelin-1 concentrations in patients with severe cardiogenic pulmonary edema. Anesthesia and Analgesia 84(5): 1091-1096

We investigated the effects of nasal continuous positive airway pressure (CPAP) on plasma endothelin-1 (ET-1) concentrations in patients with cardiogenic pulmonary edema. Thirty patients were randomly assigned to two groups: 15 patients who received oxygen plus nasal CPAP (CPAP group), and 15 patients who received only oxygen by face mask (oxygen group). The heart rate and the mean pulmonary artery pressure decreased significantly in the CPAP group. The PaO2/ fraction of inspired oxygen (FIO2) ratio increased in the CPAP group (163 +/- 70 to 332 +/- 104, P < 0.01) after 6 h and was significantly higher than that in the oxygen group. Arterial plasma ET-1 concentrations decreased from 6.2 +/- 2.0 pg/mL to 4.8 +/- 1.7 pg/mL (P < 0.05) after 6 h and to 3.3 +/- 0.7 pg/mL (P < 0.01) after 24 h in the CPAP group. Arterial plasma ET-1 concentrations in the CPAP group compared with the oxygen group were significantly lower at 24 h. There was a correlation between the arterial plasma ET-1 concentrations and mean pulmonary artery pressure (r = 0.62, P < 0.001), and PaO2/FIO2 (r = -0.46, P < 0.01). Nasal CPAP led to an early decrease in plasma ET-1 concentrations, and improvement in oxygenation and hemodynamics.


PMID: 9141937

DOI: 10.1213/00000539-199705000-00025

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