Personalized Numerical Cardiovascular Model with Weight Growth for Evaluating Pediatric Left Ventricular Assist Devices: Derivation from an Experimental Mock Circulatory Loop.
Personalized Numerical Cardiovascular Model with Weight Growth for Evaluating Pediatric Left Ventricular Assist Devices: Derivation from an Experimental Mock Circulatory Loop.
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用于评估儿科左心室辅助装置的具有体重增长的个性化数字心血管模型:源自实验模拟循环回路。
DOI:
10.1007/s10439-023-03376-x
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发表时间:
2024
影响因子:
3.8
通讯作者:
Wang,Yaxin
中科院分区:
文献类型:
--
作者:
Tran,Phong;Tedesco,Victor;Kiang,Simon;Karnik,Shweta;Nguyen,David;Frazier,OH;Fraser,KatharineH;Wang,Yaxin
Pediatric patients with heart failure have limited treatment options because of a shortage of donor hearts and compatible left ventricular assist devices (LVADs). To address this issue, our group is developing an implantable pediatric LVAD for patients weighing 5–20 kg, capable of accommodating different physiological hemodynamic conditions as patients grow. To evaluate LVAD prototypes across a wide range of conditions, we developed a numerical cardiovascular model, using data from a mock circulatory loop (MCL) and patient-specific elastance functions. The numerical MCL was validated against experimental MCL results, showing good agreement, with differences ranging from 0 to 11%. The numerical model was also tested under left heart failure conditions and showed a worst-case difference of 16%. In an MCL study with a pediatric LVAD, a pediatric dataset was obtained from the experimental MCL and used to tune the numerical MCL. Then, the numerical model simulated LVAD flow by using an HQ curve obtained from the LVAD’s impeller. When the numerical MCL was validated against the experimental MCL, hemodynamic differences ranged between 0 and 9%. These findings suggest that the numerical model can replicate various physiological conditions and impeller designs, indicating its potential as a tool for developing and optimizing pediatric LVADs.
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影响因子:
3.5
作者:
Zagursky,RJ;Hays,JB
通讯作者:
Hays,JB
影响因子:
5.6
作者:
Korba,BE;Hays,JB
通讯作者:
Hays,JB
DOI:
10.1016/s0021-9258(17)44473-5
发表时间:
1983-09
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
J. Joseph;R. Kolodner
通讯作者:
J. Joseph;R. Kolodner
影响因子:
5.6
作者:
T. Kogoma;K. Lark
通讯作者:
K. Lark
DOI:
10.1073/pnas.76.2.580
发表时间:
1979-01-01
影响因子:
11.1
作者:
MEIJER, M;BECK, E;SCHALLER, H
通讯作者:
SCHALLER, H