Validation of the transcranial Doppler rescue criteria for mechanical thrombectomy
Journal
Journal of Neuroimaging
ISSN
1051-2284
1552-6569
Date Issued
2024
Author(s)
Adnan Khan
Maher Saqqur
Ashfaq Shuaib
Khurshid Khan
Vijay K. Sharma
Jürgen Eggers
Robert Mikulik
Aristeidis H. Katsanos
Theodore N. Sergentanis
Konstantinos Vadikolias
Marta Rubiera
Reza Bavarsad Shahripour
Huy Thang Nguyen
Patricia Martínez‐Sánchez
Apostolos Safouris
Ioannis Heliopoulos
Abdul Salam
Carol Derksen
Konstantinos Voumvourakis
Theodora Psaltopoulou
Anne W. Alexandrov
Andrei V. Alexandrov
Georgios Tsivgoulis
Type
journal-article
Abstract
<jats:title>Abstract</jats:title><jats:sec><jats:title>Background and Purpose</jats:title><jats:p>Transcranial Doppler (TCD) identifies acute stroke patients with arterial occlusion where treatment may not effectively open the blocked vessel. This study aimed to examine the clinical utility and prognostic value of TCD flow findings in patients enrolled in a multicenter prospective study (CLOTBUST‐PRO).</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Patients enrolled with intracranial occlusion on computed tomography angiography (CTA) who underwent urgent TCD evaluation before intravenous thrombolysis was included in this analysis. TCD findings were assessed using the mean flow velocity (MFV) ratio, comparing the reciprocal ratios of the middle cerebral artery (MCA) depths bilaterally (affected MCA‐to‐contralateral MCA MFV [aMCA/cMCA MFV ratio]).</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>A total of 222 patients with intracranial occlusion on CTA were included in the study (mean age: 64 ± 14 years, 62% men). Eighty‐eight patients had M1 MCA occlusions; baseline mean National Institutes of Health Stroke Scale (NIHSS) score was 16, and a 24‐hour mean NIHSS score was 10 points. An aMCA/cMCA MFV ratio of <.6 had a sensitivity of 99%, specificity of 16%, positive predictive value (PV) of 60%, and negative PV of 94% for identifying large vessel occlusion (LVO) including M1 MCA, terminal internal carotid artery, or tandem ICA/MCA. Thrombolysis in Brain Ischemia scale, with (grade ≥1) compared to without flow (grade 0), showed a sensitivity of 17.1%, specificity of 86.9%, positive PV of 62%, and negative PV of 46% for identifying LVO.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>TCD is a valuable modality for evaluating arterial circulation in acute ischemic stroke patients, demonstrating significant potential as a screening tool for intravenous/intra‐arterial lysis protocols.</jats:p></jats:sec>
Cite this document
Khan, A., Saqqur, M., Shuaib, A., Khan, K., Sharma, V. K., Brunser, A., Eggers, J., Mikulik, R., Katsanos, A. H., Sergentanis, T. N., Vadikolias, K., Rubiera, M., Shahripour, R. B., Nguyen, H. T., Martínez‐Sánchez, P., Safouris, A., Heliopoulos, I., Salam, A., Derksen, C., … CLOTBUST‐PRO Investigators. (2024). Validation of the transcranial Doppler rescue criteria for mechanical thrombectomy. Journal of Neuroimaging, 34(4), 430-437. https://doi.org/10.1111/jon.13207
Subjects
mrs
;
reperfusion
;
stroke
;
thrombectomy
;
tibi
;
tpa
;
transcranial doppler