Numerical Investigation of the Relationship between Anastomosis Angle and Hemodynamics in Ridged Spiral Flow Bypass Grafts

被引:2
作者
Apan, Jhon Jasper [1 ,2 ]
Tayo, Lemmuel [2 ,3 ]
Honra, Jaime [1 ]
机构
[1] Mapua Univ, Sch Mech & Mfg Engn, Manila 1002, Philippines
[2] Mapua Univ, Sch Chem Biol & Mat Engn & Sci, Manila 1002, Philippines
[3] Mapua Univ, Sch Med & Hlth Sci, Dept Biol, Makati 1200, Philippines
来源
APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 06期
关键词
bypass graft; spiral flow; hemodynamics; computational fluid dynamics; WALL SHEAR-STRESS; BLOOD-FLOW; CONSTRUCTAL DESIGN; STENOSIS SEVERITY; PATTERNS; ARTERIES; FIELDS; MODEL;
D O I
10.3390/app13064046
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Bypass graft failures are linked to hemodynamic disturbances resulting from poor design. Several studies have tried to improve graft patency by modifying conventional graft designs. One strategy being employed is to induce spiral flow in bypass grafts using an internal ridge which has been proposed to optimize blood flow. However, there is still no study focusing on how the anastomosis angle can affect the hemodynamics of such a design despite its huge influence on local flow fields. To fill this gap, we aimed to understand and optimize the relationship between anastomosis angle and ridged spiral flow bypass graft hemodynamics to minimize disturbances and prolong graft patency. Steady-state, non-Newtonian computational fluid dynamics (CFD) analysis of a distal, end-to-side anastomosis between a ridged graft and idealized femoral artery was used to determine the anastomosis angle that would yield the least hemodynamic disturbances. Transient, pulsatile, non-Newtonian CFD analysis between a conventional and ridged graft at the optimal angle was performed to determine if such a design has an advantage over conventional designs. The results revealed that smaller anastomosis angles tend to optimize graft performance by the reduction in the pressure drop, recirculation, and areas in the host artery affected by abnormally high shear stresses. It was also confirmed that the modified design outperformed conventional bypass grafts due to the increased shear stress generated which is said to have atheroprotective benefits. The findings of the study may be taken into consideration in the design of bypass grafts to prevent their failure due to hemodynamic disturbances associated with conventional designs and highlight the importance of understanding and optimizing the relationship among different geometric properties in designing long-lasting bypass grafts.
引用
收藏
页数:20
相关论文
共 50 条
  • [31] Pulsatile Bypass Flow by Means of Power Law and Newtonian Model: A Comparison Guided by Numerical Investigation
    Impiombato A.N.
    Orlandi F.
    Civita G.L.
    Zinani F.S.F.
    Rocha L.A.O.
    Biserni C.
    Di Schio E.R.
    Defect and Diffusion Forum, 2022, 420 : 215 - 228
  • [32] Numerical investigation on flow fields in partially stenosed artery with complete bypass graft: An in vitro study
    Ko, T. H.
    Ting, Kuen
    Yeh, H. C.
    INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2007, 34 (06) : 713 - 727
  • [33] Local Hemodynamics in Coronary Bypass in the Presence of Competitive Flow and Different Diameter Ratios Between Graft and Host Artery
    Totorean, Alin-Florin
    Hudrea, Iuliana-Claudia
    WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2018, VOL 1, 2019, 68 (01): : 767 - 771
  • [34] Numerical investigation of multi-lateral jets interactions flow characteristics at high angle of attack
    Li, Bin
    Wang, Xuezhan
    Liu, Xianming
    Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica, 2015, 36 (09): : 2828 - 2839
  • [35] Numerical Investigation of the Effect of Additional Pulmonary Blood Flow on Patient-Specific Bilateral Bidirectional Glenn Hemodynamics
    Si, Biao
    Qiao, Bin
    Yang, Guang
    Zhu, Meng
    Zhao, Fengyu
    Wang, Tongjian
    Li, Na
    Ji, Xiaopeng
    Ding, Guanghong
    CARDIOVASCULAR ENGINEERING AND TECHNOLOGY, 2018, 9 (02) : 193 - 201
  • [36] Numerical Investigation of the Effect of Additional Pulmonary Blood Flow on Patient-Specific Bilateral Bidirectional Glenn Hemodynamics
    Biao Si
    Bin Qiao
    Guang Yang
    Meng Zhu
    Fengyu Zhao
    Tongjian Wang
    Na Li
    Xiaopeng Ji
    Guanghong Ding
    Cardiovascular Engineering and Technology, 2018, 9 : 193 - 201
  • [37] Numerical Investigation of the Effect of Angle Between Angularly Positioned Two Buildings on Velocity and Pressure Distribution
    Curebal, Tekmile
    Ozmen, Yucel
    JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, 2022, 25 (01): : 361 - 371
  • [38] 3D numerical model of blood flow in the coronary artery bypass graft during no pulse and pulse situations: Effects of an anastomotic angle and characteristics of fluid
    Koksungnoen, Satiraporn
    Rattanadecho, Phadungsak
    Wongchadakul, Patcharaporn
    JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2018, 32 (09) : 4545 - 4552
  • [39] 3D numerical model of blood flow in the coronary artery bypass graft during no pulse and pulse situations: Effects of an anastomotic angle and characteristics of fluid
    Satiraporn Koksungnoen
    Phadungsak Rattanadecho
    Patcharaporn Wongchadakul
    Journal of Mechanical Science and Technology, 2018, 32 : 4545 - 4552
  • [40] Numerical Investigation of the Angle of Attack Effect on Cloud Cavitation Flow around a Clark-Y Hydrofoil
    Peng, Di
    Chen, Guoqing
    Yan, Jiale
    Wang, Shiping
    CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES, 2024, 139 (03): : 2947 - 2964