Modeling the Steady-State Effects of Mean Arterial Pressure on the Kidneys

IEEE Open Journal of Engineering in Medicine and Biology

Benjamin J. Czerwin¹  Jiayao Yuan¹  Sandip Patel¹  Nicolas W. Chbat²  Caitlyn M. Chiofolo² 

[1] Columbia University, New York, NY, USA;Quadrus Medical Technologies, New York, NY, USA;

关键词: Glomerulus;    human;    kidney;    model;    pressure;    GFR;   

DOI  :  10.1109/OJEMB.2020.3036547

来源: DOAJ

【 摘 要 】

Goal: We describe the relationship between mean arterial pressure (MAP) and glomerular filtration rate (GFR) since therapies affecting MAP can have large effects on kidney function. Methods: We developed a closed-loop, steady-state mechanistic model of the human kidney with a reduced parameter set estimated from measurements. Results: The model was first validated against literature models. Further, GFR was validated against intensive care patient data (root mean squared error (RMSE) 13.5 mL/min) and against hypertensive patients receiving sodium nitroprusside (SNP) (RMSE less than 5 mL/min). A sensitivity analysis of the model reinforced the fact that vascular resistance is inversely related to GFR and showed that changes to either vascular resistance or renal autoregulation cause a significant change in sodium concentration in the descending limb of Henle. Conclusions: This model can be used to determine the impact of MAP on GFR and overall kidney health. The modeling framework lends itself to personalization of the model to a specific human.

【 授权许可】

Unknown