Effects of lactated Ringer solution and prednisolone sodium succinate on dogs with induced hemorrhagic shock
1992
Hankes, G.H. | Dillon, A.R. | Ravis, W.R.
Hemorrhagic shock was induced in nonsplenectomized dogs by removing 41% of their blood volume over a 15-minute period. Hemodynamic and metabolic variables were determined prior to and for 3 hours after completion of hemorrhage. One group of 5 dogs was not treated. After the 30-minute sample was collected, a second group of 5 dogs was given lactated Ringer solution (LRS) at 88 ml/kg of body weight, IV. A third group of 5 dogs was given LRS (88 ml/kg, IV) and prednisolone sodium succinate (11 mg/kg, IV) 30 minutes after hemorrhage. The IV administration of LRS was completed within 15 minutes. The glucocorticoid was administered as an IV bolus after 500 ml of LRS had been given. The large volume and administration of LRS significantly (P = 0.05) improved many of the hemodynamic and metabolic effects of acute hemorrhage and hemorrhagic shock. At one time or another during the 2.5-hour observation period after the initiation of treatment, mean arterial pressure, cardiac index, systemic vascular resistance, heart rate, respiratory rate, lactate, glucose, and arterial and venous blood gas values were significantly (P = 0.05) improved, compared with baseline values. The addition of prednisolone sodium succinate to the treatment regimen improved the effectiveness of LRS alone only in some dogs at random sampling times. Significant trends were not observed except, possibly, the improvement of venous pH and A-V pH and P(CO)2 differences.
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