Abstract:
:The usual normal S-T segment of the surface electrocardiogram (ECG) contributes little to the diagnostic procedure. When the S-T segment is too long or too short, or when it is displaced upward or downward, it is commonly abnormal. Under such circumstances, an S-T segment abnormality usually contributes considerable diagnostic information. When the Grant method of ECG interpretation is used, it is possible to perceive abnormalities of the S-T segment that may otherwise be ignored or misinterpreted. This paper describes the method of identification and the significance of primary and secondary S-T segment abnormalities. When a mean vector constructed for the S-T segment displacement seen in 12 ECG leads is relatively parallel with a mean vector representing the T wave, it is, with a few exceptions, part of the repolarization process and is therefore part of the T wave. This may be called a secondary S-T segment abnormality. When a mean vector constructed for the S-T segment displacement seen in 12 ECG leads is not relatively parallel with a mean vector representing the T wave, it is, with a few exceptions, not part of the repolarization process and is therefore not part of the T wave. This may be called a primary S-T segment abnormality.
journal_name
Clin Cardioljournal_title
Clinical cardiologyauthors
Hurst JWdoi
10.1002/clc.4960200602subject
Has Abstractpub_date
1997-06-01 00:00:00pages
511-20issue
6eissn
0160-9289issn
1932-8737journal_volume
20pub_type
杂志文章,评审abstract:BACKGROUND:Randomized controlled trials showed the nonvitamin K oral anticoagulant (NOAC) edoxaban was effective and safe for stroke and systemic embolism prevention in nonvalvular atrial fibrillation (AF) and for the prevention and treatment of venous thromboembolism (VTE; including pulmonary embolism and deep vein th...
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pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1994-10-01 00:00:00
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pub_type: 临床试验,杂志文章
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更新日期:1997-10-01 00:00:00
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