National Institutes of Health Stroke Scale Score and Vessel Occlusion in 2152 Patients With Acute Ischemic Stroke

There is some controversy on the association of the National Institutes of Health Stroke Scale (NIHSS) score to predict arterial occlusion on MR arteriography and CT arteriography in acute stroke. We analyzed NIHSS scores and arteriographic findings in 2152 patients (35.4% women, mean age 66 ± 14 ye...

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Veröffentlicht in:Stroke (1970) 2013-04, Vol.44 (4), p.1153-1157
Hauptverfasser: HELDNER, Mirjam R, ZUBLER, Christoph, XIN YAN, ARNOLD, Marcel, OZDOBA, Christoph, MORDASINI, Pasquale, FISCHER, Urs, MATTLE, Heinrich P, SCHROTH, Gerhard, WECK, Anja, MONO, Marie-Luise, GRALLA, Jan, JUNG, Simon, EL-KOUSSY, Marwan, LÜDI, Rudolf
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container_end_page 1157
container_issue 4
container_start_page 1153
container_title Stroke (1970)
container_volume 44
creator HELDNER, Mirjam R
ZUBLER, Christoph
XIN YAN
ARNOLD, Marcel
OZDOBA, Christoph
MORDASINI, Pasquale
FISCHER, Urs
MATTLE, Heinrich P
SCHROTH, Gerhard
WECK, Anja
MONO, Marie-Luise
GRALLA, Jan
JUNG, Simon
EL-KOUSSY, Marwan
LÜDI, Rudolf
description There is some controversy on the association of the National Institutes of Health Stroke Scale (NIHSS) score to predict arterial occlusion on MR arteriography and CT arteriography in acute stroke. We analyzed NIHSS scores and arteriographic findings in 2152 patients (35.4% women, mean age 66 ± 14 years) with acute anterior or posterior circulation strokes. The study included 1603 patients examined with MR arteriography and 549 with CT arteriography. Of those, 1043 patients (48.5%; median NIHSS score 5, median time to clinical assessment 179 minutes) showed an occlusion, 887 in the anterior (median NIHSS score 7/0-31), and 156 in the posterior circulation (median NIHSS score 3/0-32). Eight hundred sixty visualized occlusions (82.5%) were located centrally (ie, in the basilar, intracranial vertebral, internal carotid artery, or M1/M2 segment of the middle cerebral artery). NIHSS scores turned out to be predictive for any vessel occlusions in the anterior circulation. Best cut-off values within 3 hours after symptom onset were NIHSS scores ≥ 9 (positive predictive value 86.4%) and NIHSS scores ≥ 7 within >3 to 6 hours (positive predictive value 84.4%). Patients with central occlusions presenting within 3 hours had NIHSS scores
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We analyzed NIHSS scores and arteriographic findings in 2152 patients (35.4% women, mean age 66 ± 14 years) with acute anterior or posterior circulation strokes. The study included 1603 patients examined with MR arteriography and 549 with CT arteriography. Of those, 1043 patients (48.5%; median NIHSS score 5, median time to clinical assessment 179 minutes) showed an occlusion, 887 in the anterior (median NIHSS score 7/0-31), and 156 in the posterior circulation (median NIHSS score 3/0-32). Eight hundred sixty visualized occlusions (82.5%) were located centrally (ie, in the basilar, intracranial vertebral, internal carotid artery, or M1/M2 segment of the middle cerebral artery). NIHSS scores turned out to be predictive for any vessel occlusions in the anterior circulation. Best cut-off values within 3 hours after symptom onset were NIHSS scores ≥ 9 (positive predictive value 86.4%) and NIHSS scores ≥ 7 within &gt;3 to 6 hours (positive predictive value 84.4%). Patients with central occlusions presenting within 3 hours had NIHSS scores &lt;4 in only 5%. In the posterior circulation and in patients presenting after 6 hours, the predictive value of the NIHSS score for vessel occlusion was poor. There is a significant association of NIHSS scores and vessel occlusions in patients with anterior circulation strokes. This association is best within the first hours after symptom onset. 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Patients with central occlusions presenting within 3 hours had NIHSS scores &lt;4 in only 5%. In the posterior circulation and in patients presenting after 6 hours, the predictive value of the NIHSS score for vessel occlusion was poor. There is a significant association of NIHSS scores and vessel occlusions in patients with anterior circulation strokes. This association is best within the first hours after symptom onset. Thereafter and in the posterior circulation the association is poor.</description><subject>Aged</subject><subject>Angiography - methods</subject><subject>Arterial Occlusive Diseases - diagnosis</subject><subject>Arterial Occlusive Diseases - diagnostic imaging</subject><subject>Biological and medical sciences</subject><subject>Brain Ischemia - diagnosis</subject><subject>Brain Ischemia - pathology</subject><subject>Carotid Artery, Internal - pathology</subject><subject>Female</subject><subject>Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. 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We analyzed NIHSS scores and arteriographic findings in 2152 patients (35.4% women, mean age 66 ± 14 years) with acute anterior or posterior circulation strokes. The study included 1603 patients examined with MR arteriography and 549 with CT arteriography. Of those, 1043 patients (48.5%; median NIHSS score 5, median time to clinical assessment 179 minutes) showed an occlusion, 887 in the anterior (median NIHSS score 7/0-31), and 156 in the posterior circulation (median NIHSS score 3/0-32). Eight hundred sixty visualized occlusions (82.5%) were located centrally (ie, in the basilar, intracranial vertebral, internal carotid artery, or M1/M2 segment of the middle cerebral artery). NIHSS scores turned out to be predictive for any vessel occlusions in the anterior circulation. Best cut-off values within 3 hours after symptom onset were NIHSS scores ≥ 9 (positive predictive value 86.4%) and NIHSS scores ≥ 7 within &gt;3 to 6 hours (positive predictive value 84.4%). Patients with central occlusions presenting within 3 hours had NIHSS scores &lt;4 in only 5%. In the posterior circulation and in patients presenting after 6 hours, the predictive value of the NIHSS score for vessel occlusion was poor. There is a significant association of NIHSS scores and vessel occlusions in patients with anterior circulation strokes. This association is best within the first hours after symptom onset. Thereafter and in the posterior circulation the association is poor.</abstract><cop>Hagerstown, MD</cop><pub>Lippincott Williams &amp; Wilkins</pub><pmid>23471266</pmid><doi>10.1161/STROKEAHA.111.000604</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record>
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source MEDLINE; American Heart Association Journals; Journals@Ovid Complete - AutoHoldings; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection
subjects Aged
Angiography - methods
Arterial Occlusive Diseases - diagnosis
Arterial Occlusive Diseases - diagnostic imaging
Biological and medical sciences
Brain Ischemia - diagnosis
Brain Ischemia - pathology
Carotid Artery, Internal - pathology
Female
Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy
Humans
Magnetic Resonance Angiography - methods
Male
Medical sciences
Middle Aged
Middle Cerebral Artery - pathology
National Institutes of Health (U.S.)
Nervous system (semeiology, syndromes)
Neurology
Severity of Illness Index
Stroke - diagnosis
Stroke - pathology
Time Factors
Tomography, X-Ray Computed - methods
United States
Vascular diseases and vascular malformations of the nervous system
title National Institutes of Health Stroke Scale Score and Vessel Occlusion in 2152 Patients With Acute Ischemic Stroke
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