• 1. Department of Mechanics & Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, P.R.China;
  • 2. Sichuan Key Laboratory of Biomechanical Engineering, Sichuan University, Chengdu 610065, P.R.China;
JIANG Wentao, Email: scubme_jwt@outlook.com
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Vascular injury resulting from lower limb amputation leads to the redistribution of blood flow and changes in vascular terminal resistance, which can affect the cardiovascular system. However, there was no clear understanding of how different amputation levels affect the cardiovascular system in animal experiments. Therefore, this study established two animal models of above-knee amputation (AKA) and below-knee amputation (BKA) to explore the effects of different amputation levels on the cardiovascular system through blood and histopathological examinations. The results showed that amputation caused pathological changes in the cardiovascular system of animals, including endothelial injury, inflammation, and angiosclerosis. The degree of cardiovascular injury was higher in the AKA group than in the BKA group. This study sheds light on the internal mechanisms of amputation’s impact on the cardiovascular system. Based on the amputation level of patients, the findings recommend more comprehensive and targeted monitoring after surgery and necessary interventions to prevent cardiovascular diseases.

Citation: MIN Lei, JIANG Wentao, LI Zhongyou, LI Xiao, DIAO Junjie, LIU Renjing, TAI Tianxiang, BAI Taoping. Animal experimental study on the effects of different levels of amputation on cardiovascular system. Journal of Biomedical Engineering, 2023, 40(3): 515-521. doi: 10.7507/1001-5515.202211004 Copy

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