Key result
High-dose angiotensin II infusion causes multifocal myocardial necrosis and renal lesions in rabbits.
Why the study?
The role of angiotensin II in low cardiac output syndrome after open-heart surgery and its myocardial effects were unclear.
Does high-dose angiotensin II induce myocardial and renal damage in animal models?
Does high-dose angiotensin II induce myocardial and renal damage in animal models?
High doses of angiotensin II can produce myocardial and renal lesions, suggesting a potential mechanism for low cardiac output syndrome after open-heart surgery.
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May implicate angiotensin II in postoperative myocardial injury; hypothesis-generating for low-output syndrome mechanisms, requiring clinical validation.
Kuroda et al. (1983) studied Low cardiac output syndrome (LOS) model (n=25). Angiotensin II vs. Physiological saline was evaluated on Myocardial necrosis, renal lesions, and plasma Angiotensin II levels. Intravenous infusion of high-dose angiotensin II for 48 hours caused multifocal myocardial necrosis and renal lesions in rabbits, while isolated canine kidneys inactivated 79% of angiotensin II.
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