Applicability of Longitudinal Strain of Left Ventricle in Unstable Angina

Autor: Andrea de Andrade Vilela, Marcela Paganelli do Vale, Alexandre José Aguiar Andrade, Mariana Oliveira Rezende, Olívia Ximenes de Queiroga, David Le Bihan, Nelson Henrique Goes Scorsioni, Murilo Castro Ferreira, Natasha Soares Simões dos Santos, Rodrigo Bellio de Mattos Barretto
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Male
lcsh:Diseases of the circulatory (Cardiovascular) system
Cross-sectional study
Infarction
Blood Pressure
Coronary Artery Disease
030204 cardiovascular system & hematology
Disfunção do Ventrículo Esquerdo
Severity of Illness Index
030218 nuclear medicine & medical imaging
Strain
Angina
Electrocardiography
Ventricular Dysfunction
Left
0302 clinical medicine
Reference Values
Risk Factors
Speckle Tracking
Medicine
education.field_of_study
Middle Aged
Coronary Vessels
Echocardiography
Doppler
Angina
unstable / physiopathology
medicine.anatomical_structure
Echocardiography
Cardiology
Risk Factors/prevalence
Female
Short Editorial
Cardiology and Cardiovascular Medicine
medicine.medical_specialty
Angina Instável / fisiopatologia
Population
Ecocardiografia / métodos
Isquemia Miocárdica / fisiopatologia
Risk Assessment
Statistics
Nonparametric
03 medical and health sciences
Internal medicine
Severity of illness
Humans
Angina
Unstable
Acute Coronary Syndrome
education
Echocardiography / methods
Aged
business.industry
Unstable angina
Reproducibility of Results
Stroke Volume
medicine.disease
Coronary arteries
Stenosis
Cross-Sectional Studies
ROC Curve
Myocardial Ischemia / physiopathology
lcsh:RC666-701
business
Zdroj: Arquivos Brasileiros de Cardiologia v.110 n.4 2018
Arquivos Brasileiros de Cardiologia
Sociedade Brasileira de Cardiologia (SBC)
instacron:SBC
Arquivos Brasileiros de Cardiologia, Vol 110, Iss 4, Pp 354-361
Popis: Background: Unstable angina (UA) is a common cause of hospital admission; risk stratification helps determine strategies for treatment. Objective: To determine the applicability of two-dimensional longitudinal strain (SL2D) for the identification of myocardial ischemia in patients with UA. Methods: Cross-sectional, descriptive, observational study lasting 60 days. The sample consisted of 78 patients, of which fifteen (19.2%) were eligible for longitudinal strain analysis. The value of p < 0.05 was considered significant. Results: The group of ineligible patients presented: a lower proportion of women, a higher prevalence of diabetes mellitus (DM), use of ASA, statins and beta-blockers and larger cavity diameters. The main causes of non-applicability were: presence of previous infarction (56.4%), previous CTA (22.1%), previous MRI (11.5%) or both (16.7%) and the presence of specific electrocardiographic abnormalities (12.8%). SL2D assessment revealed a lower global strain value in those with stenosis greater than 70% in some epicardial coronary arteries (17.1 [3.1] versus 20.2 [6.7], with p = 0.014). Segmental strain assessment showed an association between severe CX and RD lesions with longitudinal strain reduction of lateral and inferior walls basal segments; (14 [5] versus 21 [10], with p = 0.04) and (12.5 [6] versus 19 [8], respectively). Conclusion: There was very low SL2D applicability to assess ischemia in the studied population. However, the global strain showed a correlation with the presence of significant coronary lesion, which could be included in the UA diagnostic arsenal in the future.
Databáze: OpenAIRE
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