Intraoperative Arterial Blood Flow and Stump Pressure Measurements in Internal Carotid Artery Near‐Occlusion: Blood Flow and Stump Pressure in Carotid Artery Near‐Occlusion.
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| Title: | Intraoperative Arterial Blood Flow and Stump Pressure Measurements in Internal Carotid Artery Near‐Occlusion: Blood Flow and Stump Pressure in Carotid Artery Near‐Occlusion. |
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| Authors: | Aivaz Ihari, Mahia (AUTHOR), Holsti, Mari (AUTHOR), Henze, Alexander (AUTHOR), Nordanstig, Joakim (AUTHOR), Nordanstig, Annika (AUTHOR), Strömberg, Sofia (AUTHOR), Fox, Allan J. (AUTHOR), Johansson, Elias (AUTHOR), Colosimo, Carlo (AUTHOR) |
| Source: | Acta Neurologica Scandinavica. 9/9/2025, Vol. 2025, p1-9. 9p. |
| Subjects: | Internal carotid artery, Carotid artery stenosis, Stenosis, Arterial physiology, Ischemia, Blood pressure measurement, Carotid endarterectomy, Intraoperative care |
| Abstract: | Near‐occlusion (NO) with and without full collapse seems to cause low blood flow in symptomatic carotid stenosis. If the stroke mechanism is hypoperfusion in NO, the stump pressure should be low. The aim was to compare and describe stump pressure and blood flow in conventional ≥ 50% stenosis, NO without full collapse, and NO with full collapse. In this prospective single‐center study, consecutive patients with symptomatic ≥ 50% carotid stenosis (NASCET grading), undergoing carotid endarterectomy (CEA) were recruited. NO was diagnosed by three blinded observers who reviewed computed tomography angiographies (CTA). Intraoperative measurements of ICA flow before and after CEA and stump pressure were recorded. One hundred and eighty‐one patients were included; 116 (64%) had conventional ≥ 50% stenosis, and 66 (36%) had NO. Before CEA, the median ICA flow was significantly lower in NO (90 ml/min) compared to conventional ≥ 50% stenosis (170 mL/min, p < 0.001). In contrast, no difference was observed after CEA (NO 170 mL/min, conventional ≥ 50% stenosis 180 mL/min, p = 0.48). The ICA flow change was significantly higher in NO compared to conventional stenosis (p < 0.001). There was a significant correlation between the distal ICA diameter on CTA and the ICA flow before CEA (r = 0.579, p < 0.001). There were no differences in stump pressure between NO and conventional ≥ 50% stenoses (median 53 (range 41–66) mmHg and median 54 (range 40–67) mmHg, respectively, p = 0.93), nor any correlation between the stump pressure and the distal ICA diameter (r = 0.063, p = 0.41). NO causes low ICA flow, and to our knowledge, this is the first time this causal link between ICA flow and NO is clearly established. Since patients with NO did not have low stump pressure, the mechanism of stroke in NO does not seem to be hypoperfusion. [ABSTRACT FROM AUTHOR] |
| Copyright of Acta Neurologica Scandinavica is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 187843627 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Intraoperative Arterial Blood Flow and Stump Pressure Measurements in Internal Carotid Artery Near‐Occlusion: Blood Flow and Stump Pressure in Carotid Artery Near‐Occlusion. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Aivaz+Ihari%2C+Mahia%22">Aivaz Ihari, Mahia</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Holsti%2C+Mari%22">Holsti, Mari</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Henze%2C+Alexander%22">Henze, Alexander</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nordanstig%2C+Joakim%22">Nordanstig, Joakim</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nordanstig%2C+Annika%22">Nordanstig, Annika</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Strömberg%2C+Sofia%22">Strömberg, Sofia</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fox%2C+Allan+J%2E%22">Fox, Allan J.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Johansson%2C+Elias%22">Johansson, Elias</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Colosimo%2C+Carlo%22">Colosimo, Carlo</searchLink> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Acta+Neurologica+Scandinavica%22">Acta Neurologica Scandinavica</searchLink>. 9/9/2025, Vol. 2025, p1-9. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Internal+carotid+artery%22">Internal carotid artery</searchLink><br /><searchLink fieldCode="DE" term="%22Carotid+artery+stenosis%22">Carotid artery stenosis</searchLink><br /><searchLink fieldCode="DE" term="%22Stenosis%22">Stenosis</searchLink><br /><searchLink fieldCode="DE" term="%22Arterial+physiology%22">Arterial physiology</searchLink><br /><searchLink fieldCode="DE" term="%22Ischemia%22">Ischemia</searchLink><br /><searchLink fieldCode="DE" term="%22Blood+pressure+measurement%22">Blood pressure measurement</searchLink><br /><searchLink fieldCode="DE" term="%22Carotid+endarterectomy%22">Carotid endarterectomy</searchLink><br /><searchLink fieldCode="DE" term="%22Intraoperative+care%22">Intraoperative care</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Near‐occlusion (NO) with and without full collapse seems to cause low blood flow in symptomatic carotid stenosis. If the stroke mechanism is hypoperfusion in NO, the stump pressure should be low. The aim was to compare and describe stump pressure and blood flow in conventional ≥ 50% stenosis, NO without full collapse, and NO with full collapse. In this prospective single‐center study, consecutive patients with symptomatic ≥ 50% carotid stenosis (NASCET grading), undergoing carotid endarterectomy (CEA) were recruited. NO was diagnosed by three blinded observers who reviewed computed tomography angiographies (CTA). Intraoperative measurements of ICA flow before and after CEA and stump pressure were recorded. One hundred and eighty‐one patients were included; 116 (64%) had conventional ≥ 50% stenosis, and 66 (36%) had NO. Before CEA, the median ICA flow was significantly lower in NO (90 ml/min) compared to conventional ≥ 50% stenosis (170 mL/min, p < 0.001). In contrast, no difference was observed after CEA (NO 170 mL/min, conventional ≥ 50% stenosis 180 mL/min, p = 0.48). The ICA flow change was significantly higher in NO compared to conventional stenosis (p < 0.001). There was a significant correlation between the distal ICA diameter on CTA and the ICA flow before CEA (r = 0.579, p < 0.001). There were no differences in stump pressure between NO and conventional ≥ 50% stenoses (median 53 (range 41–66) mmHg and median 54 (range 40–67) mmHg, respectively, p = 0.93), nor any correlation between the stump pressure and the distal ICA diameter (r = 0.063, p = 0.41). NO causes low ICA flow, and to our knowledge, this is the first time this causal link between ICA flow and NO is clearly established. Since patients with NO did not have low stump pressure, the mechanism of stroke in NO does not seem to be hypoperfusion. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Acta Neurologica Scandinavica is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1155/ane/4620206 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 1 Subjects: – SubjectFull: Internal carotid artery Type: general – SubjectFull: Carotid artery stenosis Type: general – SubjectFull: Stenosis Type: general – SubjectFull: Arterial physiology Type: general – SubjectFull: Ischemia Type: general – SubjectFull: Blood pressure measurement Type: general – SubjectFull: Carotid endarterectomy Type: general – SubjectFull: Intraoperative care Type: general Titles: – TitleFull: Intraoperative Arterial Blood Flow and Stump Pressure Measurements in Internal Carotid Artery Near‐Occlusion: Blood Flow and Stump Pressure in Carotid Artery Near‐Occlusion. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Aivaz Ihari, Mahia – PersonEntity: Name: NameFull: Holsti, Mari – PersonEntity: Name: NameFull: Henze, Alexander – PersonEntity: Name: NameFull: Nordanstig, Joakim – PersonEntity: Name: NameFull: Nordanstig, Annika – PersonEntity: Name: NameFull: Strömberg, Sofia – PersonEntity: Name: NameFull: Fox, Allan J. – PersonEntity: Name: NameFull: Johansson, Elias – PersonEntity: Name: NameFull: Colosimo, Carlo IsPartOfRelationships: – BibEntity: Dates: – D: 09 M: 09 Text: 9/9/2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 00016314 Numbering: – Type: volume Value: 2025 Titles: – TitleFull: Acta Neurologica Scandinavica Type: main |
| ResultId | 1 |
