Chinese consensus statement on the evaluation and intervention of collateral circulation for ischemic stroke.
BACKGROUND
Collateral circulation is becoming more significant in the individual management strategy of ischemic stroke, there are more data updated recently.


OBJECTIVE
To make the further acknowledgment of the evaluation and how to improving collateral flow, for better treatment selection.


METHODS
A panel of experts on stroke providing related statement based on review the results from most up-to-date clinical research.


RESULTS
DSA is the gold standard in evaluating all levels of collaterals. CTA can be used for evaluating leptomeningeal collaterals, MRA for CoW, TCD or TCCS can be used as screening tool for primary evaluation. The treatment modalities include direct interventions, such as Extracranial-Intracranial bypass, and indirect interventions, as External counterpulsation and pressor therapy. The consideration of methodology to augment and improve can be considered on an individual basis.


CONCLUSIONS
In this consensus, we interpret the definition, neuroimaging evaluation, intervention and potential strategy on collaterals in the future.


CONCLUSIONS
Assessment of collateral circulation is crucial for selecting therapeutic options, predicting infarction volume and making prognosis after ischemic stroke. Data is still needed to provide therapeutic evidence for many new developed technologies. Until more evidence is available, the clinical significance of applying the new technologies is unclear and perhaps limited.
Departments of Neurology and Stroke Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Li-Ping
LP
Liu
An-Ding
AD
Xu
Lawrence K S
LK
Wong
David Z
DZ
Wang
Yong-Jun
YJ
Wang
D044466:Asian People; D002545:Brain Ischemia / Q000150:complications; D002560:Cerebrovascular Circulation / Q000502:physiology*; D003097:Collateral Circulation / Q000502:physiology*; D032921:Consensus; D006801:Humans; D020521:Stroke / Q000209:etiology / Q000517:prevention & control*
Collateral circulation; Consensus; Evaluation; Intervention; Ischemic stroke