Abstract
AbstractWe aimed to validate the prognostic ability and assess interrater reliability of a recently suggested measurement-based definition of near-occlusion with full collapse (distal ICA diameter ≤ 2.0 mm and/or ICA ratio ≤ 0.42). 118 consecutive patients with symptomatic near-occlusion were prospectively included and assessed on computed tomography angiography by 2 blinded observers, 26 (22%) had full collapse. At 2 days after presenting event, the risk of preoperative stroke was 3% for without full collapse and 16% for with full collapse (p = 0.01). At 28 days, this risk was 16% for without full collapse and 22% for with full collapse (p = 0.22). Interrater reliability was perfect (kappa 1.0). Thus, near-occlusion with full collapse should be defined as distal ICA ≤ 2.0 mm and/or ICA ratio ≤ 0.42 in order to detect cases with very high risk of early stroke recurrence.
Funder
Knut och Alice Wallenbergs Stiftelse
Region Västerbotten
Hjärt-Lungfonden
STROKE-Riksförbundet
Jeanssons Stiftelser
Svenska Läkaresällskapet
The research foundation for neurological research at the University Hospital of Northern Sweden
The research foundation for medical research at Umeå University
The Northern Swedish Stroke fund
Umea University
Publisher
Springer Science and Business Media LLC