ST segment
International Journal of Arrhythmia
;
: 108-112, 2017.
Artigo
em Coreano
| WPRIM
| ID: wpr-105553
ABSTRACT
The ST segment corresponds to the plateau phase of ventricular repolarization, i.e., phase 2 of the action potential. Heightened awareness of the characteristic patterns of ST segment changes is vital to quickly identifying life-threatening disorders. The differential diagnosis of ST segment elevation includes four major processes ST segment elevation myocardial infarction (STEMI); early repolarization; pericarditis; and ST elevation secondary to an abnormality of the QRS complex (left bundle branch block, left ventricular hypertrophy, or preexcitation). Other processes that may be associated with ST elevation include hyperkalemia, pulmonary embolism, and Brugada syndrome. Two particular patterns of ST segment depression reflect STEMI rather than non-ST-segment elevation acute coronary syndrome ST segment depression that is reciprocal to a subtle and sometimes overlooked ST-segment elevation, and ST segment depression that is maximal in leads V₁-V₃, suggesting true posterior infarction. The clinical setting and specific electrocardiographic criteria often allow identification of the cause.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Pericardite
/
Embolia Pulmonar
/
Bloqueio de Ramo
/
Potenciais de Ação
/
Hipertrofia Ventricular Esquerda
/
Depressão
/
Diagnóstico Diferencial
/
Eletrocardiografia
/
Síndrome de Brugada
/
Síndrome Coronariana Aguda
Tipo de estudo:
Estudo diagnóstico
/
Estudo prognóstico
Idioma:
Coreano
Revista:
International Journal of Arrhythmia
Ano de publicação:
2017
Tipo de documento:
Artigo
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