Abstract:
BACKGROUND:Stroke subtype diagnosis leads to specific therapies to reduce recurrences. Because nearly one third of patients remain with unknown etiology after a complete screening workup, we aim to investigate whether molecular markers of myocardial damage were associated with cardioembolic stroke and if they were useful to reclassify strokes of undetermined etiology. METHODS:We included 262 patients with first ischemic stroke within the first 12 hours. Stroke subtype was evaluated by TOAST criteria. Stroke of undetermined origin were reclassified into likely atherothrombotic or likely cardioembolic according to a predefined non-validated algorithm. Blood samples were obtained on admission to determine serum levels of molecular markers (pro-BNP, pro-ANP and CK-MB) of myocardial damage. RESULTS:Patients with cardioembolic infarct showed higher levels of pro-BNP, pro-ANP and CK-MB. Pro-BNP > 360 pg/mL was independently associated with cardioembolic stroke (OR: 28.51, CI95%: 5.90-136.75, p< 0.0001). Stroke etiology was undetermined in 82 patients (31%); 34 were reclassified as likely cardioembolic, 22 as likely atherothrombotic, and 26 remained as undetermined. Pro-BNP > 360 pg/mL was the only factor independently associated with likely cardioembolic stroke. CONCLUSIONS:Pro-BNP levels higher than 360 pg/mL are associated with cardioembolic stroke and may be useful to reclassify undetermined strokes as of cardioembolic origin.
journal_name
Dis Markersjournal_title
Disease markersauthors
Rodríguez-Yáñez M,Sobrino T,Blanco M,de la Ossa NP,Brea D,Rodríguez-González R,Leira R,Dávalos A,Castillo Jdoi
10.3233/DMA-2009-0630subject
Has Abstractpub_date
2009-01-01 00:00:00pages
189-95issue
4eissn
0278-0240issn
1875-8630pii
N7732G1688VM0464journal_volume
26pub_type
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