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ORIGINAL ARTICLE
Year : 2020  |  Volume : 15  |  Issue : 3  |  Page : 566-572

Fate of patients with chronic cerebrovascular steno-occlusive disease according to change of cerebral perfusion, cerebrovascular reserved, and incidence of recurrent ischemic stroke


1 Department of Radiology, Division of Diagnostic Radiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
2 Department of Surgery, Division of Neurosurgery, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
3 Department of Anesthesiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
4 Department of Surgery, Division of Neurosurgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
5 Neuroscience Center, Bangkok Hospital, Bangkok, Thailand

Correspondence Address:
Dr. Dittapong Songsaeng
2 Wanglang Road, Bangkoknoi Bangkok 10700
Thailand
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ajns.AJNS_223_20

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Objective: The objective is to demonstrate change of cerebral perfusion and cerebrovascular reserve (CVR) in treating patients with cerebrovascular steno-occlusive disease stratified by change of cerebral perfusion and CVR. Methods: Retrospective review patients with radiographic proven major cerebrovascular steno-occlusive disease whom underwent cerebral perfusion imaging with vasoactive stimuli stress test in Siriraj Hospital and Bangkok General Hospital during 2010–2018. Medical records were also reviewed. Radiographic findings, cerebral perfusion parameters and signal change during the stress test were reviewed and used to categorize into three groups. Results: There were 40 patients sent to radiology department for the evaluation of CVR. One patient had airway problem during the procedure and was excluded. Remaining 39 patients were included in this study (32 males and 7 females, mean age of 54.55 years). In 42 sites involved, 28 (66%) were internal carotid artery, 14 (33%) were middle cerebral arteries. Laterality is left side in 20 cases, right side in 14 cases, and bilateral in 5 cases. Poor CVR response (increased cerebral blood flow <10%) was found in 9 patients (2 severe stenoses and 7 total occlusions). The mean follow-up time was 28.9 months. Eight cases (20.5%) underwent surgical treatment; surgical bypasses and endovascular interventions. Only one patient had subsequential ischemic symptom at immediate postoperative vascular bypass surgery. The remaining patients had no report of progressive or recurrent neurological deficit symptom. Conclusion: Poor CVR response is more often found in higher degree of steno-occlusion. Even inconclusive predicting incidence of recurrent ischemic stroke, CVR that reflects the capacity of neuro-autoregulation.


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