Cardiac troponin T elevation after stroke: Relationships between elevated serum troponin T, stroke location, and prognosis

Hwa Suk Song, Jang Hyun Back, Dong Kwan Jin, Pil Wook Chung, Heui Soo Moon, Bum Chun Suh, Yong Bum Kim, Byung Moon Kim, Hee Yeon Woo, Yong Taek Lee, Kwang Yeol Park

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Background and Purpose: Elevation of serum cardiac troponin T (cTnT) is regarded as a specific marker of acute coronary syndrome. Serum cTnT can be increased in patients with acute ischemic stroke, but its clinical implications remain unclear. The aim of this study was to identify the relationships between elevated cTnT and stroke severity, location, and prognosis. Methods: From January 2005 to December 2006, this study recruited 455 consecutive patients who were admitted to Kangbuk Samsung Hospital due to acute ischemic stroke within 3 days of onset, which was confirmed by diffusion magnetic resonance imaging. A total of 416 patients was finally included and divided into 2 groups: an elevated cTnT group (n=45) and a normal cTnT group (n=371). The short-term prognosis was assessed by 30-day modified Rankin Scale responder analysis was compared between the two groups. Results: Serum cTnT was elevated in 10.8% of cases, with elevated cTnT associated with greater stroke severity, as assessed by the National Institutes of Health Stroke Scale score, Insular-lobe involvement was more common in patients with elevated cTnT than in the normal cTnT group. Short-term prognosis was more unfavorable in the elevated cTnT group than in the normal cTnT group. Multivariate regression analysis indicated that elevated cTnT was independently related to insular involvement, cardioembolism, and unfavorable outcome. Conclusions: Elevated cTnT in acute ischemic stroke was associated with severe neurological deficits at stroke onset and damages to the insular lobe. The outcome of acute ischemic stroke was worse for patients with elevated cTnT than for those with normal cTnT. The pathomechanism underlying acute ischemic stroke and subclinical myocardial damage warrants further study.

Original languageEnglish
Pages (from-to)75-83
Number of pages9
JournalJournal of Clinical Neurology (Korea)
Volume4
Issue number2
DOIs
Publication statusPublished - 2008 Jan 1

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Troponin T
Stroke
Serum
Diffusion Magnetic Resonance Imaging
National Institutes of Health (U.S.)
Acute Coronary Syndrome

All Science Journal Classification (ASJC) codes

  • Neurology
  • Clinical Neurology

Cite this

Song, Hwa Suk ; Back, Jang Hyun ; Jin, Dong Kwan ; Chung, Pil Wook ; Moon, Heui Soo ; Suh, Bum Chun ; Kim, Yong Bum ; Kim, Byung Moon ; Woo, Hee Yeon ; Lee, Yong Taek ; Park, Kwang Yeol. / Cardiac troponin T elevation after stroke : Relationships between elevated serum troponin T, stroke location, and prognosis. In: Journal of Clinical Neurology (Korea). 2008 ; Vol. 4, No. 2. pp. 75-83.
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title = "Cardiac troponin T elevation after stroke: Relationships between elevated serum troponin T, stroke location, and prognosis",
abstract = "Background and Purpose: Elevation of serum cardiac troponin T (cTnT) is regarded as a specific marker of acute coronary syndrome. Serum cTnT can be increased in patients with acute ischemic stroke, but its clinical implications remain unclear. The aim of this study was to identify the relationships between elevated cTnT and stroke severity, location, and prognosis. Methods: From January 2005 to December 2006, this study recruited 455 consecutive patients who were admitted to Kangbuk Samsung Hospital due to acute ischemic stroke within 3 days of onset, which was confirmed by diffusion magnetic resonance imaging. A total of 416 patients was finally included and divided into 2 groups: an elevated cTnT group (n=45) and a normal cTnT group (n=371). The short-term prognosis was assessed by 30-day modified Rankin Scale responder analysis was compared between the two groups. Results: Serum cTnT was elevated in 10.8{\%} of cases, with elevated cTnT associated with greater stroke severity, as assessed by the National Institutes of Health Stroke Scale score, Insular-lobe involvement was more common in patients with elevated cTnT than in the normal cTnT group. Short-term prognosis was more unfavorable in the elevated cTnT group than in the normal cTnT group. Multivariate regression analysis indicated that elevated cTnT was independently related to insular involvement, cardioembolism, and unfavorable outcome. Conclusions: Elevated cTnT in acute ischemic stroke was associated with severe neurological deficits at stroke onset and damages to the insular lobe. The outcome of acute ischemic stroke was worse for patients with elevated cTnT than for those with normal cTnT. The pathomechanism underlying acute ischemic stroke and subclinical myocardial damage warrants further study.",
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Cardiac troponin T elevation after stroke : Relationships between elevated serum troponin T, stroke location, and prognosis. / Song, Hwa Suk; Back, Jang Hyun; Jin, Dong Kwan; Chung, Pil Wook; Moon, Heui Soo; Suh, Bum Chun; Kim, Yong Bum; Kim, Byung Moon; Woo, Hee Yeon; Lee, Yong Taek; Park, Kwang Yeol.

In: Journal of Clinical Neurology (Korea), Vol. 4, No. 2, 01.01.2008, p. 75-83.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Cardiac troponin T elevation after stroke

T2 - Relationships between elevated serum troponin T, stroke location, and prognosis

AU - Song, Hwa Suk

AU - Back, Jang Hyun

AU - Jin, Dong Kwan

AU - Chung, Pil Wook

AU - Moon, Heui Soo

AU - Suh, Bum Chun

AU - Kim, Yong Bum

AU - Kim, Byung Moon

AU - Woo, Hee Yeon

AU - Lee, Yong Taek

AU - Park, Kwang Yeol

PY - 2008/1/1

Y1 - 2008/1/1

N2 - Background and Purpose: Elevation of serum cardiac troponin T (cTnT) is regarded as a specific marker of acute coronary syndrome. Serum cTnT can be increased in patients with acute ischemic stroke, but its clinical implications remain unclear. The aim of this study was to identify the relationships between elevated cTnT and stroke severity, location, and prognosis. Methods: From January 2005 to December 2006, this study recruited 455 consecutive patients who were admitted to Kangbuk Samsung Hospital due to acute ischemic stroke within 3 days of onset, which was confirmed by diffusion magnetic resonance imaging. A total of 416 patients was finally included and divided into 2 groups: an elevated cTnT group (n=45) and a normal cTnT group (n=371). The short-term prognosis was assessed by 30-day modified Rankin Scale responder analysis was compared between the two groups. Results: Serum cTnT was elevated in 10.8% of cases, with elevated cTnT associated with greater stroke severity, as assessed by the National Institutes of Health Stroke Scale score, Insular-lobe involvement was more common in patients with elevated cTnT than in the normal cTnT group. Short-term prognosis was more unfavorable in the elevated cTnT group than in the normal cTnT group. Multivariate regression analysis indicated that elevated cTnT was independently related to insular involvement, cardioembolism, and unfavorable outcome. Conclusions: Elevated cTnT in acute ischemic stroke was associated with severe neurological deficits at stroke onset and damages to the insular lobe. The outcome of acute ischemic stroke was worse for patients with elevated cTnT than for those with normal cTnT. The pathomechanism underlying acute ischemic stroke and subclinical myocardial damage warrants further study.

AB - Background and Purpose: Elevation of serum cardiac troponin T (cTnT) is regarded as a specific marker of acute coronary syndrome. Serum cTnT can be increased in patients with acute ischemic stroke, but its clinical implications remain unclear. The aim of this study was to identify the relationships between elevated cTnT and stroke severity, location, and prognosis. Methods: From January 2005 to December 2006, this study recruited 455 consecutive patients who were admitted to Kangbuk Samsung Hospital due to acute ischemic stroke within 3 days of onset, which was confirmed by diffusion magnetic resonance imaging. A total of 416 patients was finally included and divided into 2 groups: an elevated cTnT group (n=45) and a normal cTnT group (n=371). The short-term prognosis was assessed by 30-day modified Rankin Scale responder analysis was compared between the two groups. Results: Serum cTnT was elevated in 10.8% of cases, with elevated cTnT associated with greater stroke severity, as assessed by the National Institutes of Health Stroke Scale score, Insular-lobe involvement was more common in patients with elevated cTnT than in the normal cTnT group. Short-term prognosis was more unfavorable in the elevated cTnT group than in the normal cTnT group. Multivariate regression analysis indicated that elevated cTnT was independently related to insular involvement, cardioembolism, and unfavorable outcome. Conclusions: Elevated cTnT in acute ischemic stroke was associated with severe neurological deficits at stroke onset and damages to the insular lobe. The outcome of acute ischemic stroke was worse for patients with elevated cTnT than for those with normal cTnT. The pathomechanism underlying acute ischemic stroke and subclinical myocardial damage warrants further study.

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