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Purpose <p>To clarify the relationship between deep medullary veins (DMV) and risk of post-discharge stroke in chronic internal carotid artery occlusion (CICAO) patients.</p> Methods <p>Hospitalized patients were divided into CICAO patients and control group without cerebral artery occlusion. SWI assessed DMV prominence in both cerebral hemispheres on a 0–3 scale. If the DMV scores of both hemispheres were consistent, DWV was not prominent (DMV-). Otherwise, DWV was prominent (DMV+) in the higher score hemisphere. In DMV + patients with CICAO, if the DMV score in the ipsilateral hemisphere of CICAO was higher than the contralateral hemisphere, DMV + was DMVi, otherwise, DMV + was DMVc.</p> Results <p>110 unilateral CICAO patients and 75 control group patients were finally enrolled. 89CICAO patients and 5 control group patients were DMV+. In CICAO patients, 54 were DMVi patients and 35 were DMVc patients. Binary logistic regression analysis showed that CICAO was the independent risk factor of DMV+ (OR: 75.23; 95%CI :25.58-240.07; <i>P</i> &lt; 0.001). Compared with DMVc patients, DMVi patients had a lower proportion of simultaneous primary and secondary collaterals activation(<i>P</i> = 0.034), decreased perfusion in the CICAO ipsilateral hemisphere (<i>P</i> &lt; 0.001) and higher DMV scores in the prominent hemisphere (<i>P</i> = 0.012). Cox regression showed that the risk of stroke events post discharge in DMVi patients was higher than that in DMVc patients (HR: 4.68; 95%CI: 1.02–21.50; <i>P</i> = 0.047).</p> Conclusion <p>CICAO is an independent risk factor for DMV. The collateral circulation and cerebral perfusion are related to DMVc. DMVc predictes a lower risk of stroke in CICAO patients post discharge.</p>

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Prominence of deep medullary veins associated with the risk of stroke in unilateral chronic internal carotid artery occlusion patients

  • 期刊论文

  • 发表日期：

    2025年9月15日

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  • Na Liang,
  • Wei Di,
  • Zhiwei Li,
  • Xiaoling Liu,
  • Xiansong Cheng,
  • Sheng Liu,
  • Jun Hu

摘要

Purpose

To clarify the relationship between deep medullary veins (DMV) and risk of post-discharge stroke in chronic internal carotid artery occlusion (CICAO) patients.

Methods

Hospitalized patients were divided into CICAO patients and control group without cerebral artery occlusion. SWI assessed DMV prominence in both cerebral hemispheres on a 0–3 scale. If the DMV scores of both hemispheres were consistent, DWV was not prominent (DMV-). Otherwise, DWV was prominent (DMV+) in the higher score hemisphere. In DMV + patients with CICAO, if the DMV score in the ipsilateral hemisphere of CICAO was higher than the contralateral hemisphere, DMV + was DMVi, otherwise, DMV + was DMVc.

Results

110 unilateral CICAO patients and 75 control group patients were finally enrolled. 89CICAO patients and 5 control group patients were DMV+. In CICAO patients, 54 were DMVi patients and 35 were DMVc patients. Binary logistic regression analysis showed that CICAO was the independent risk factor of DMV+ (OR: 75.23; 95%CI :25.58-240.07; P < 0.001). Compared with DMVc patients, DMVi patients had a lower proportion of simultaneous primary and secondary collaterals activation(P = 0.034), decreased perfusion in the CICAO ipsilateral hemisphere (P < 0.001) and higher DMV scores in the prominent hemisphere (P = 0.012). Cox regression showed that the risk of stroke events post discharge in DMVi patients was higher than that in DMVc patients (HR: 4.68; 95%CI: 1.02–21.50; P = 0.047).

Conclusion

CICAO is an independent risk factor for DMV. The collateral circulation and cerebral perfusion are related to DMVc. DMVc predictes a lower risk of stroke in CICAO patients post discharge.