Key result
Sodium pentobarbital anesthesia increases plasma renin activity ~125% in dogs despite indomethacin pretreatment.
Why the study?
The effects of sodium pentobarbital anesthesia and laparotomy on plasma renin activity in dogs, with or without indomethacin pretreatment, were unclear.
Population
Dogs with or without indomethacin pretreatment
Comparison
Pentobarbital anesthesia and laparotomy effects on plasma renin activity
Design
Experimental study measuring plasma renin activity after interventions
Follow-up
Up to 4 hours after laparotomy
Authors
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Pentobarbital may confound renin activity measurements in canine models; leaves open mechanisms and relevance to other species or conscious states.
Absolute Event Rate: 22.49% vs 9.98%
p-value: p=<0.005
Yun et al. (1979) studied this question. Sodium pentobarbital and laparotomy vs. Control periods (baseline) was evaluated on Plasma renin activity (PRA) (p=<0.005). Sodium pentobarbital anesthesia significantly increased plasma renin activity in dogs from 9.98 to 22.49 ng/mL/h (P<0.005), an effect not prevented by indomethacin pretreatment.
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