Limitations of the Use of Pressure Waves to Verify Correct Epidural Needle Position in Dogs
Figure 4
Difference between pre- and postinjection epidural pressure values in dogs receiving only acepromazine in premedication (group A) and dogs receiving a combination of acepromazine and methadone (group AM). The box and the line represent the interquartile range and the median, respectively; the whiskers indicate minimum and maximum. The difference in between the two groups is statistically significant ().
