Abstract:
:The significance of the early maximal negative T wave on electrocardiography was evaluated in 74 patients with initial acute anterior myocardial infarction (MI) admitted within 6 hours of onset. The relationship between the negative T wave and the severity of MI, as assessed by MI size and left ventricular dysfunction, was investigated. Serial electrocardiography, maximal creatine phosphokinase (CKmax), total myocardial perfusion index by thallium-201 single photon emission computed tomography myocardial scintigraphy, and left ventricular ejection fraction (LVEF) by technetium-99m scintigraphy were obtained. The amplitude of maximal negative T wave (NTmax) was observed between 4 and 96 hours after the onset (mean 46.3 +/- 19.3 hours). NTmax was significantly correlated with CKmax-1 (r = 0.613, p < 0.001) and with LVEF (r = 0.542, p < 0.002). Patients were divided into 3 groups based on NTmax: the deep negative T (DNT: NTmax > or = 10 mm) group, intermediate negative T (INT: 4 mm < or = NTmax < 10 mm) group and shallow negative T (SNT: NTmax < 4 mm) group. Compared with the SNT group, the DNT group revealed smaller CKmax (p < 0.05), more reduced LVEF and myocardial perfusion index (p < 0.05, respectively). The INT group had intermediate values. Serial electrocardiography of the DNT group showed the reappearance of R waves in leads V1-V4, normalization of the ST segment, and relatively early appearance of terminal T wave inversion (p < 0.05, respectively). NTmax reflects the infarct size, and is a clinically simple and useful parameter to estimate the severity of acute anterior myocardial infarction.
journal_name
J Cardioljournal_title
Journal of cardiologyauthors
Takigawa O,Kanemoto N,Handa Ssubject
Has Abstractpub_date
1998-10-01 00:00:00pages
235-45issue
4eissn
0914-5087issn
1876-4738journal_volume
32pub_type
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journal_title:Journal of cardiology
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更新日期:2003-11-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1988-12-01 00:00:00
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journal_title:Journal of cardiology
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更新日期:2004-11-01 00:00:00
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doi:10.1016/j.jjcc.2016.04.012
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1994-07-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2011.06.006
更新日期:2011-09-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2008.06.008
更新日期:2009-02-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 临床试验,杂志文章
doi:
更新日期:2000-05-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jjcc.2012.08.009
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doi:10.1016/j.jjcc.2019.08.001
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journal_title:Journal of cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.jjcc.2018.03.003
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journal_title:Journal of cardiology
pub_type: 临床试验,杂志文章
doi:10.1016/j.jjcc.2014.09.004
更新日期:2015-08-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:10.1016/j.jjcc.2008.02.005
更新日期:2008-06-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2019-09-01 00:00:00
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journal_title:Journal of cardiology
pub_type: 杂志文章
doi:
更新日期:1995-03-01 00:00:00
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pub_type: 杂志文章
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