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Updated: Mar 27, 2026

A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
Published on: February 2, 2021
[Renal artery injury caused by Kawasaki disease]
Zhi-Jian Wang1, Mei-Hua Zhu, Li Zhang
1Department of Pediatrics, Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China. zmh1962cn@163.com.
Insights
Kawasaki disease (KD) can cause renal artery injury and hemodynamic changes, leading to transient hypertension in some children. Early detection of these vascular changes is crucial for managing KD.
Area of Science:
- Pediatric Nephrology
- Cardiovascular Research
- Rheumatology
Context:
- Kawasaki disease (KD) is a critical condition affecting children.
- Renal artery involvement in KD is not fully understood.
- Hypertension is a potential complication of KD.
Purpose:
- To investigate renal artery injury in children with Kawasaki disease.
- To compare hemodynamic parameters and hormonal levels in KD patients with and without hypertension.
- To identify early indicators of renal artery compromise in KD.
Summary:
- Children with KD exhibited smaller renal artery origins and altered hemodynamics compared to controls.
- Hypertensive KD patients showed more severe renal artery changes and elevated renin-angiotensin-aldosterone system activity.
- These vascular changes partially resolved in the subacute phase, suggesting a transient impact.
Impact:
- Highlights potential for KD to cause significant renal artery injury and hemodynamic alterations.
- Suggests a link between KD, hypertension, and the renin-angiotensin-aldosterone system.
- Emphasizes the need for monitoring renal function and vascular health in children with KD.
Objective:
To investigate renal artery injury caused by Kawasaki disease (KD).
Methods:
Forty-three children with KD were enrolled in the study. According to the blood pressure in the acute stage, these children were classified into normal blood pressure subgroup and increased blood pressure subgroup. Eighteen children with fever caused by acute upper respiratory tract infection were enrolled as the control group. The diameter of the origin of the main renal artery, hemodynamic parameters of the main renal artery and the renal interlobar artery, rennin activity, and levels of angiotensin II and aldosterone were compared between groups.
Results:
During the acute stage of KD, both subgroups had a significantly smaller diameter of the origin of the main renal artery, a significantly higher resistance index (RI) of the main renal artery, and a significantly lower end-diastolic velocity (EDV) than the control group (P<0.05).The increased blood pressure subgroup had a significantly lower EDV of the interlobar artery than the normal blood pressure subgroup, a significantly higher RI than the normal blood pressure subgroup and the control group, as well as a significantly higher rennin activity and significantly higher levels of angiotensin II and aldosterone than the normal blood pressure subgroup (P<0.05). A significantly increased EDV and a significantly reduced RI of the renal interlobar artery were observed in the increased blood pressure subgroup in the subacute stage compared with the acute stage (P<0.05).
Conclusions:
KD may cause renal artery injury and early hemodynamic changes, resulting in a transient increase in blood pressure in some patients.
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