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Not all "successful" angiographic reperfusion patients are an equal validation of a modified TICI scoring system
MA. Almekhlafi, S. Mishra, JA. Desai, V. Nambiar, O. Volny, A. Goel, M. Eesa, AM. Demchuk, BK. Menon, M. Goyal,
Language English Country Italy
Document type Evaluation Study, Journal Article, Validation Study
NLK
Free Medical Journals
from 2008 to 1 year ago
PubMed Central
from 1999 to 1 year ago
Europe PubMed Central
from 1999 to 1 year ago
- MeSH
- Stroke epidemiology radiography surgery MeSH
- Databases, Factual MeSH
- Outcome Assessment, Health Care methods statistics & numerical data MeSH
- Humans MeSH
- Mechanical Thrombolysis statistics & numerical data MeSH
- Cerebral Angiography statistics & numerical data MeSH
- Observer Variation MeSH
- Prevalence MeSH
- Reproducibility of Results MeSH
- Retrospective Studies MeSH
- Risk Factors MeSH
- Aged MeSH
- Sensitivity and Specificity MeSH
- Severity of Illness Index * MeSH
- Treatment Outcome MeSH
- Check Tag
- Humans MeSH
- Male MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Evaluation Study MeSH
- Validation Study MeSH
- Geographicals
- Alberta MeSH
Rapid reperfusion of the entire territory distal to vascular occlusions is the aim of stroke interventions. Recent studies defined successful reperfusion as establishing some perfusion with distal branch filling of <50% of territory visualized (Thrombolysis In Cerebral Infarction "TICI" 2a) or more. We investigate the importance of the quality of final reperfusion and whether a revision of the successful reperfusion definition is warranted. We retrospectively evaluated a prospective database of anterior circulation strokes treated using stentrievers to assess the quality of final reperfusion using two scores: the traditional TICI score and a modified TICI score. The modified TICI score includes an additional category (TICI 2c): near complete perfusion except for slow flow or distal emboli in a few distal cortical vessels. We compared different cut-off definitions of reperfusion (TICI 2a - 3 vs. TICI-2b-3 vs. TICI 2c-3) using the area under the curve to identify their correlation with a favorable 90-day outcome (mRS≤2). In our cohort of 110 patients, 90% achieved TICI 2a-3 reperfusion with 80% achieving TICI 2b-3 and 55.5% achieving TICI 2c-3. The proportion of patients with a favorable 90-day outcome was higher in the TICI 2c (62.5%) compared to TICI 2b (44.4%) or TICI 2a (45.5%) but similar to the TICI 3 group (75.9%). A TICI 2c-3 reperfusion had a better predictive value than TICI 2b-3 for 90-day mRS 0-1. Defining successful reperfusion as TICI 2c/3 has merits. In this cohort, there was evidence toward faster recovery and better outcomes in patients with the TICI 2c vs. the traditional TICI 2b grade.
Calgary Canada 1st Neurological Clinic and International Clinical Research Centre
Calgary Canada Department of Community Health Sciences University of Calgary
Calgary Canada Department of Internal Medicine King Abdulaziz University
Calgary Canada Department of Radiology University of Calgary
Calgary Canada Hotchkiss Brain Institute
Calgary Stroke Program Department of Clinical Neurosciences University of Calgary
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- $a Rapid reperfusion of the entire territory distal to vascular occlusions is the aim of stroke interventions. Recent studies defined successful reperfusion as establishing some perfusion with distal branch filling of <50% of territory visualized (Thrombolysis In Cerebral Infarction "TICI" 2a) or more. We investigate the importance of the quality of final reperfusion and whether a revision of the successful reperfusion definition is warranted. We retrospectively evaluated a prospective database of anterior circulation strokes treated using stentrievers to assess the quality of final reperfusion using two scores: the traditional TICI score and a modified TICI score. The modified TICI score includes an additional category (TICI 2c): near complete perfusion except for slow flow or distal emboli in a few distal cortical vessels. We compared different cut-off definitions of reperfusion (TICI 2a - 3 vs. TICI-2b-3 vs. TICI 2c-3) using the area under the curve to identify their correlation with a favorable 90-day outcome (mRS≤2). In our cohort of 110 patients, 90% achieved TICI 2a-3 reperfusion with 80% achieving TICI 2b-3 and 55.5% achieving TICI 2c-3. The proportion of patients with a favorable 90-day outcome was higher in the TICI 2c (62.5%) compared to TICI 2b (44.4%) or TICI 2a (45.5%) but similar to the TICI 3 group (75.9%). A TICI 2c-3 reperfusion had a better predictive value than TICI 2b-3 for 90-day mRS 0-1. Defining successful reperfusion as TICI 2c/3 has merits. In this cohort, there was evidence toward faster recovery and better outcomes in patients with the TICI 2c vs. the traditional TICI 2b grade.
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