دورية أكاديمية
Optimal Renal Artery-Aorta Angulation Revealed by Flow Simulation
| العنوان: | Optimal Renal Artery-Aorta Angulation Revealed by Flow Simulation |
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| المؤلفون: | David Csonka, Károly Kalmár Nagy, Péter Szakály, Sándor Szukits, Péter Bogner, Akos Koller, Szilárd Kun, István Wittmann, István Ervin Háber, Iván Gabor Horváth |
| المصدر: | Kidney & Blood Pressure Research, Pp 1-1 (2023) |
| بيانات النشر: | Karger Publishers, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Dermatology LCC:Diseases of the circulatory (Cardiovascular) system LCC:Diseases of the genitourinary system. Urology |
| مصطلحات موضوعية: | flow simulation, hemodynamics, renal artery branching angle, single kidney, transplantation, Dermatology, RL1-803, Diseases of the circulatory (Cardiovascular) system, RC666-701, Diseases of the genitourinary system. Urology, RC870-923 |
| الوصف: | Introduction: In the circulatory system, the vessel branching angle may have hemodynamic consequences. We hypothesized that there is a hemodynamically optimal range for the renal artery’s branching angle. Methods: Data on the posttransplant kinetics of estimated glomerular filtration rate (eGFR) were analyzed according to the donor and implant sides (right-to-right and left-to-right position; n = 46). The renal artery branching angle from the aorta of a randomly selected population was measured using an X-ray angiogram (n = 44). Computational fluid dynamics simulation was used to elucidate the hemodynamic effects of angulation. Results and Discussion: Renal transplant patients receiving a right donor kidney to the right side showed faster adaptation and higher eGFR values than those receiving a left donor kidney to the right side (eGFR: 65 ± 7 vs. 56 ± 6 mL/min/1.73 m2; p < 0.01). The average branching angle on the left side was 78° and that on the right side was 66°. Simulation results showed that the pressure, volume flow, and velocity were relatively constant between 58° and 88°, indicating that this range is optimal for the kidneys. The turbulent kinetic energy does not change significantly between 58° and 78°. Conclusion: The results suggest that there is an optimal range for the renal artery’s branching angle from the aorta where hemodynamic vulnerability caused by the degree of angulation is the lowest, which should be considered during kidney transplantations. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1420-4096 1423-0143 |
| العلاقة: | https://www.karger.com/Article/FullText/530169Test; https://doaj.org/toc/1420-4096Test; https://doaj.org/toc/1423-0143Test |
| DOI: | 10.1159/000530169 |
| الوصول الحر: | https://doaj.org/article/718dc12fe0174658ba7f56493890ff24Test |
| رقم الانضمام: | edsdoj.718dc12fe0174658ba7f56493890ff24 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 14204096 14230143 |
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| DOI: | 10.1159/000530169 |