EFFECT OF THE LEUKOTRIENE RECEPTOR ANTAGONIST ONO-1078 ON EXTRAVASCULAR LUNG WATER AFTER CORONARY LIGATION IN DOGS

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To determine whether or not leukotrienes are associated with pulmonary edema after coronary ligation in dogs, we studied the effects of a specific leukotriene C4/D4 antagonist, ONO-1078, on extravascular lung water, as measured by the thermal-dye double indicator dilution method (Extravascular thermal volume, ETV). Six dogs served as a sham control (group 1). The proximal left anterior descending coronary artery was ligated for 45 min in 6 dogs (group 2), and in 6 others the coronary artery was ligated after pretreatment with ONO-1078 (1μ/kg/min) (group 3). ETV and pulmonary arterial pressure were measured at control and 45 min after coronary ligation. In group 1, no significant change was found in ETV. Although there was no significant increase in pulmonary arterial pressure after coronary ligation, ETV significantly increased in groups 2 and 3. ETV increased more in groups 2 and 3 than in group 1, but there was no significant difference between groups 2 and 3. Thus, ONO-1078 did not effectively prevent the accumulation of extravascular lung water after coronary ligation, indicating that leukotrienes are not important mediators of pulmonary edema after myocardial ischemia.
社団法人日本循環器学会の論文
1993-05-20