Clinical Focus
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Abstract: Kidney is the organ with the most abundant blood supply. It has a strong ability of selfregulation of blood flow, which makes the blood flow of kidney relatively stable when the arterial pressure changes in a certain range.Various causes, which range from inflammation, sepsis, insufficient capacity, obstruction to ischemiareperfusion injury and surgery, can lead to impaired autonomic regulation of renal blood flow. At this time, small fluctuation of arterial blood pressure may lead to obvious fluctuation of glomerular filtration rate, contributing to acute renal function damage.Therefore, the monitoring of renal perfusion is of significant importance.Renal perfusion can be monitored by renal ultrasound such as color Doppler, renal blood flow spectrum, contrastenhanced ultrasound,and tissue oxygen monitoring such as near infrared spectroscopy, magnetic resonance imaging tissue oxygen monitoring in clinic.Due to various potential diseases and basic disease status, the optimal blood pressure for each patient is different to ensure adequate renal perfusion pressure.Clinical practice prefers lower central venous pressure, and the titration and individualized therapy strategies guided by renal blood flow perfusion to regulate body volume status and renal perfusion pressure.
Key words: acute kidney injury, hemoperfusion, renal circulation , ultrasonography, vascular resistance
Hu Chenghuan, Zhang Lina, Chinese Critical Ultrasound Study Group. Renal perfusion pressure: what is appropriate?[J]. Clinical Focus, doi: 10.3969/j.issn.1004-583X.2019.07.003.
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URL: https://huicui.hebmu.edu.cn/EN/10.3969/j.issn.1004-583X.2019.07.003
https://huicui.hebmu.edu.cn/EN/Y2019/V34/I7/590