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Associations between ECG changes and echocardiographic findings in patients with acute non-ST elevation myocardial infarction
- Source :
- Journal of electrocardiology. 51(2)
- Publication Year :
- 2017
-
Abstract
- Background: ST segment depression (STD) and T wave inversion (TWI) are typical electrocardiographic (ECG) findings in non-ST elevation myocardial infarction (NSTEMI). In ST elevation myocardial infarction, ST changes represent transmural ischemia. The pathophysiological mechanisms of the ECG changes in NSTEMI are unclear. Purpose: We studied the associations between ECG and the echocardiographic findings in NSTEMI patients. Methods: Twenty patients with acute NSTEMI were recruited during their hospital stay. A comprehensive echocardiography study was performed. The findings were compared with blinded ECG analyses. Results: Nine (45%) patients had STD, and 16 (85%) patients had TWI. In multivariable analysis, STD was independently associated with a lower global early diastolic strain rate (beta=-5.061, p=0.033). TWI was independently associated with lower circumferential strain (beta=0.132, p =0.032). Conclusions: The typical ECG changes in NSTEMI patients were associated with subtle echocardiographic changes. STD was related to changes in diastolic function, and TWI was associated with systolic deterioration. (C) 2017 Elsevier Inc. All rights reserved.
- Subjects :
- Male
medicine.medical_specialty
Systole
Ischemia
Speckle tracking echocardiography
030204 cardiovascular system & hematology
ISCHEMIC-HEART-DISEASE
DIAGNOSIS
Non-ST elevation infarction
03 medical and health sciences
Electrocardiography
Ventricular Dysfunction, Left
0302 clinical medicine
St elevation myocardial infarction
Diastole
T wave
Internal medicine
Medicine
ST segment
Humans
In patient
030212 general & internal medicine
Myocardial infarction
cardiovascular diseases
Integrated backscatter
Non-ST Elevated Myocardial Infarction
Depression (differential diagnoses)
ADMISSION ELECTROCARDIOGRAM
business.industry
ECG
ACUTE CORONARY SYNDROMES
SEGMENT ELEVATION
2-DIMENSIONAL SPECKLE TRACKING
T-WAVE INVERSION
Middle Aged
medicine.disease
DEPRESSION
DYSFUNCTION
3. Good health
LEADS
Echocardiography
3121 General medicine, internal medicine and other clinical medicine
Cardiology
Female
sense organs
Cardiology and Cardiovascular Medicine
business
Subjects
Details
- ISSN :
- 15328430
- Volume :
- 51
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Journal of electrocardiology
- Accession number :
- edsair.doi.dedup.....4dd47154ef0d4d5bed527036e0840bdf