PT  - JOURNAL ARTICLE
AU  - A.D. Horsch
AU  - J.W. Dankbaar
AU  - J.M. Niesten
AU  - T. van Seeters
AU  - I.C. van der Schaaf
AU  - Y. van der Graaf
AU  - W.P.Th.M. Mali
AU  - B.K. Velthuis
TI  - Predictors of Reperfusion in Patients with Acute Ischemic Stroke
AID  - 10.3174/ajnr.A4283
DP  - 2015 Jun 01
TA  - American Journal of Neuroradiology
PG  - 1056--1062
VI  - 36
IP  - 6
4099  - http://www.ajnr.org/content/36/6/1056.short
4100  - http://www.ajnr.org/content/36/6/1056.full
SO  - Am. J. Neuroradiol.2015 Jun 01; 36
AB  - BACKGROUND AND PURPOSE: Ischemic stroke studies emphasize a difference between reperfusion and recanalization, but predictors of reperfusion have not been elucidated. The aim of this study was to evaluate the relationship between reperfusion and recanalization and identify predictors of reperfusion.MATERIALS AND METHODS: From the Dutch Acute Stroke Study, 178 patients were selected with an MCA territory deficit on admission CTP and day 3 follow-up CTP and CTA. Reperfusion was evaluated on CTP, and recanalization on CTA, follow-up imaging. Reperfusion percentages were calculated in patients with and without recanalization. Patient admission and treatment characteristics and admission CT imaging parameters were collected. Their association with complete reperfusion was analyzed by using univariate and multivariate logistic regression.RESULTS: Sixty percent of patients with complete recanalization showed complete reperfusion (relative risk, 2.60; 95% CI, 1.63–4.13). Approximately one-third of patients showed some discrepancy between recanalization and reperfusion status. Lower NIHSS score (OR, 1.06; 95% CI, 1.01–1.11), smaller infarct core size (OR, 3.11; 95% CI, 1.46–6.66; and OR, 2.40; 95% CI, 1.14–5.02), smaller total ischemic area (OR, 4.20; 95% CI, 1.91–9.22; and OR, 2.35; 95% CI, 1.12–4.91), lower clot burden (OR, 1.35; 95% CI, 1.14–1.58), distal thrombus location (OR, 3.02; 95% CI, 1.76–5.20), and good collateral score (OR, 2.84; 95% CI, 1.34–6.02) significantly increased the odds of complete reperfusion. In multivariate analysis, only total ischemic area (OR, 6.12; 95% CI, 2.69–13.93; and OR, 1.91; 95% CI, 0.91–4.02) was an independent predictor of complete reperfusion.CONCLUSIONS: Recanalization and reperfusion are strongly associated but not always equivalent in ischemic stroke. A smaller total ischemic area is the only independent predictor of complete reperfusion.DUSTDutch Acute Stroke StudyRRrelative risk