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  • Title: Effect of dopamine on renal function after arteriography in patients with pre-existing renal insufficiency.
    Author: Hans SS, Hans BA, Dhillon R, Dmuchowski C, Glover J.
    Journal: Am Surg; 1998 May; 64(5):432-6. PubMed ID: 9585778.
    Abstract:
    Contrast media-induced nephropathy is one of the leading causes of hospital-acquired renal failure, occurring most frequently in patients with pre-existing renal insufficiency. We prospectively studied 55 patients with chronic renal insufficiency (serum creatinine concentration 1.4 to 3.5 mg/dl) who underwent abdominal aortography and arteriography of the lower extremities. The patients were randomized into two groups. Group 1, 28 patients, received dopamine 2.5 mcg/kg beginning 1 hour before arteriography and continuing for 12 hours. Group 2 received an equal volume of saline for the same period of time. Serum creatinine and 12-hour creatinine clearance were measured before arteriography and for 4 consecutive days afterward. Acute contrast-induced decrease in renal function was defined as increase in the baseline serum creatinine concentration > or = 0.5 mg/dl. On day 1 postarteriography the serum creatinine increased from baseline .193 mg/dl for controls while the dopamine group decreased slightly from baseline .018 mg/dl (p = 0.002). Excepting day 1 postarteriography, there was no statistical difference between groups, and serum levels for both groups increased linearly from baseline across time (dopamine p = 0.028, control p = 0.025). In patients with pre-arteriography baseline serum levels greater than or equal to 2.0 mg/dl, however, the increase in serum creatinine from baseline levels was consistently and significantly greater in the control group through the fourth day (0.012 < or = p < or = 0.049). Creatinine clearance did not change significantly from baseline after arteriography in the dopamine group (baseline versus days 1 through 4, 0.238 < or = p < or = 0.968); however, the control group showed a significant linear decrease in creatinine clearance from baseline through the fourth day after arteriography (p = 0.016). Dopamine infusion prevented a rise in serum creatinine 24 hours after angiography in patients with pre-existing renal insufficiency, and protected against contrast-induced decrease in renal function in patients whose baseline serum creatinine was > or = 2.0 mg/dl.
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