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Table 2 Clinical parameters in dogs bitten by Vipera berus

From: The effect of a single dose of prednisolone in dogs envenomated by Vipera berus – a randomized, double-blind, placebo-controlled clinical trial

Variable Day PRED n = 38 PLACEBO n = 37
Reduced mental status 1 33/38 (87%) 27/37 (73%)
2 10/38 (26%) 7/37 (19%)
Edema1 1 1.24 (n = 17) 1.22 (n = 18)
2 1.21 (n = 17) 1.23 (n = 20)
Mild edema 1 2/34 8/33
Mild or no edema 2 12/34 16/34
Decreased appetite 2 10/34 (29%) 10/35 (29%)
Vomiting 1 6/38 (16%) 4/37 (11%)
2 4/38 (11%) 2/37 (5.4%)
  1. 1Edema was compared to the circumference of the measured area at re-examination after 10–28 days. The number of dogs with available data on edema is given within brackets.
  2. The dogs were treated with 1 mg/kg bodyweight prednisolone (PRED) or saline (PLACEBO) subcutaneously.