Association Between Aneurysmal Hemodynamics and Rupture Risk of Unruptured Intracranial Aneurysms

BackgroundAssessing rupture risk in patients with unruptured intracranial aneurysms (UIAs) remains challenging. Hemodynamics plays an important role in the natural history of intracranial aneurysms. This study aimed to compare aneurysmal hemodynamic features between patients with different rupture r...

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Main Authors: Zhongbin Tian, Xifeng Li, Chao Wang, Xin Feng, Kaijian Sun, Yi Tu, Hengxian Su, Xinjian Yang, Chuanzhi Duan
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-04-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2022.818335/full
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author Zhongbin Tian
Xifeng Li
Chao Wang
Xin Feng
Kaijian Sun
Yi Tu
Hengxian Su
Xinjian Yang
Chuanzhi Duan
author_facet Zhongbin Tian
Xifeng Li
Chao Wang
Xin Feng
Kaijian Sun
Yi Tu
Hengxian Su
Xinjian Yang
Chuanzhi Duan
author_sort Zhongbin Tian
collection DOAJ
description BackgroundAssessing rupture risk in patients with unruptured intracranial aneurysms (UIAs) remains challenging. Hemodynamics plays an important role in the natural history of intracranial aneurysms. This study aimed to compare aneurysmal hemodynamic features between patients with different rupture risk as determined by PHASES score.MethodsWe retrospectively examined 238 patients who harbored a solitary saccular UIA. Patients were stratified by rupture risk into low-, intermediate-, and high-risk groups according to PHASES score. Flow simulations were performed to compare differences in hemodynamics among the groups.ResultsAneurysmal time-averaged wall shear stress (WSSa) and normalized WSS (WSSn) decreased progressively as PHASES score increased. WSSa and WSSn significantly differed among the low-, intermediate-, and high-risk groups (p < 0.001). WSSa was significantly lower in the high-risk group than the low-risk group (p < 0.001) and the intermediate-risk group (p = 0.004). WSSn was also significantly lower in the high-risk group than the low-risk group (p < 0.001) and the intermediate-risk group (p = 0.001).ConclusionsLow WSS was significantly associated with higher risk of intracranial aneurysm rupture as determined by PHASES score, indicating that hemodynamics may play an important role in aneurysmal rupture. In the future, a multidimensional rupture risk prediction model that includes hemodynamic parameters should be investigated.
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spelling doaj.art-817bc5602293445ead579b78b73d23732022-12-22T01:46:49ZengFrontiers Media S.A.Frontiers in Neurology1664-22952022-04-011310.3389/fneur.2022.818335818335Association Between Aneurysmal Hemodynamics and Rupture Risk of Unruptured Intracranial AneurysmsZhongbin Tian0Xifeng Li1Chao Wang2Xin Feng3Kaijian Sun4Yi Tu5Hengxian Su6Xinjian Yang7Chuanzhi Duan8National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Neurosurgery Institute, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, ChinaNational Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Neurosurgery Institute, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, ChinaDepartment of Neurosurgery, Binzhou Medical University Hospital, Binzhou, ChinaNational Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Neurosurgery Institute, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, ChinaNational Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Neurosurgery Institute, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, ChinaNational Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Neurosurgery Institute, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, ChinaNational Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Neurosurgery Institute, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, ChinaDepartment of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tian Tan Hospital, Capital Medical University, Beijing, ChinaNational Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Neurosurgery Institute, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, ChinaBackgroundAssessing rupture risk in patients with unruptured intracranial aneurysms (UIAs) remains challenging. Hemodynamics plays an important role in the natural history of intracranial aneurysms. This study aimed to compare aneurysmal hemodynamic features between patients with different rupture risk as determined by PHASES score.MethodsWe retrospectively examined 238 patients who harbored a solitary saccular UIA. Patients were stratified by rupture risk into low-, intermediate-, and high-risk groups according to PHASES score. Flow simulations were performed to compare differences in hemodynamics among the groups.ResultsAneurysmal time-averaged wall shear stress (WSSa) and normalized WSS (WSSn) decreased progressively as PHASES score increased. WSSa and WSSn significantly differed among the low-, intermediate-, and high-risk groups (p < 0.001). WSSa was significantly lower in the high-risk group than the low-risk group (p < 0.001) and the intermediate-risk group (p = 0.004). WSSn was also significantly lower in the high-risk group than the low-risk group (p < 0.001) and the intermediate-risk group (p = 0.001).ConclusionsLow WSS was significantly associated with higher risk of intracranial aneurysm rupture as determined by PHASES score, indicating that hemodynamics may play an important role in aneurysmal rupture. In the future, a multidimensional rupture risk prediction model that includes hemodynamic parameters should be investigated.https://www.frontiersin.org/articles/10.3389/fneur.2022.818335/fullhemodynamicsrupture riskPHASES scoreunruptured intracranial aneurysmwall shear stress
spellingShingle Zhongbin Tian
Xifeng Li
Chao Wang
Xin Feng
Kaijian Sun
Yi Tu
Hengxian Su
Xinjian Yang
Chuanzhi Duan
Association Between Aneurysmal Hemodynamics and Rupture Risk of Unruptured Intracranial Aneurysms
Frontiers in Neurology
hemodynamics
rupture risk
PHASES score
unruptured intracranial aneurysm
wall shear stress
title Association Between Aneurysmal Hemodynamics and Rupture Risk of Unruptured Intracranial Aneurysms
title_full Association Between Aneurysmal Hemodynamics and Rupture Risk of Unruptured Intracranial Aneurysms
title_fullStr Association Between Aneurysmal Hemodynamics and Rupture Risk of Unruptured Intracranial Aneurysms
title_full_unstemmed Association Between Aneurysmal Hemodynamics and Rupture Risk of Unruptured Intracranial Aneurysms
title_short Association Between Aneurysmal Hemodynamics and Rupture Risk of Unruptured Intracranial Aneurysms
title_sort association between aneurysmal hemodynamics and rupture risk of unruptured intracranial aneurysms
topic hemodynamics
rupture risk
PHASES score
unruptured intracranial aneurysm
wall shear stress
url https://www.frontiersin.org/articles/10.3389/fneur.2022.818335/full
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