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2018 ; 18
(1
): 30
Nephropedia Template TP
gab.com Text
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Clinical and radiological factors associated with unfavorable outcome after
intravenous thrombolysis in patients with mild ischemic stroke
#MMPMID29544461
Kim DH
; Lee DS
; Nah HW
; Cha JK
BMC Neurol
2018[Mar]; 18
(1
): 30
PMID29544461
show ga
BACKGROUND: A significant proportion of patients with mild ischemic stroke become
disabled despite receiving intravenous thrombolytic therapy. The purpose of this
study was to assess the clinical and radiological factors associated with
unfavorable outcomes in patients with minor ischemic stroke that received
intravenous recombinant tissue plasminogen activator (rt-PA) therapy. METHODS: We
identified anterior circulation stroke patients with initial National Institutes
of Health Stroke Scale (NIHSS) scores ?5 who received intravenous thrombolysis
within 4.5 h of stroke onset and had pretreatment magnetic resonance (MR)/MR
angiography using our prospective stroke database. We analyzed baseline
characteristics, infarction patterns on diffusion-weighted imaging (DWI), and
steno-occlusive lesions on MR angiography. Unfavorable outcome was defined as a
modified Rankin Scale (mRS) score???2 at 90 days. Logistic regression was used to
determine independent predictors of unfavorable outcomes. RESULTS: Among 121
patients (85 men; mean age, 63.4?±?11.3 years) included in this study, 46 (38%)
had unfavorable outcomes at 90 days and DWI lesion patterns showing infarction in
the deep middle cerebral artery (MCA) territory involving the perforating artery
area was observed in 47 (38.8%) patients. On multivariable analysis, unfavorable
outcomes at 90 days were associated with diabetes [odds ratio (OR), 3.41; 95%
confidence interval (CI), 1.06-10.9; P?=?0.039), NIHSS score on admission (OR,
2.11; 95% CI, 1.35-3.30; P?=?0.001), and infarction in the deep MCA territory on
DWI (OR, 4.19; 95% CI, 1.63-10.8; P?=?0.003). Lesions in the deep MCA territory
was independently associated with early neurological deterioration (P?=?0.032).
The patients without deep MCA territory infarction had a higher prevalence of
cardiac embolism (P?=?0.009). CONCLUSIONS: Higher NIHSS scores, diabetes, and
deep MCA territory infarction may be useful for predicting unfavorable outcomes
in patients with minor stroke treated with intravenous rt-PA therapy.