Key result
In areflexic dogs subjected to haemorrhage, animals with intact kidneys achieved 65.3% arterial pressure compensation compared to 24.4% in nephrectomized animals.
Population
44 areflexic dogs (30 with intact kidneys, 18 nephrectomized)
Comparison
Haemorrhage to 8.8 kPa (66 mm Hg) vs Nephrectomized animals compared to animals with…
Design
Preclinical
Follow-up
Acute (minutes)
Authors
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Supports renin-angiotensin role in acute pressure compensation after haemorrhage; hypothesis-generating, requires validation before clinical translation.
Absolute Event Rate: 65.3% vs 24.4%
The renin-angiotensin system plays a significant homeostatic role in acute arterial pressure compensation during haemorrhagic hypotension.
BROUGH et al. (1975) studied Haemorrhagic hypotension (n=44). Intact kidneys (renin-angiotensin system) vs. Nephrectomized (anephric) was evaluated on Arterial pressure compensation following haemorrhage. In areflexic dogs subjected to haemorrhage, animals with intact kidneys achieved 65.3% arterial pressure compensation compared to 24.4% in nephrectomized animals.
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