Disfunção sistólica ventricular esquerda detetada por speckle tracking em hipertensos com fração de ejeção preservada
O espectro da cardiopatia hipertensiva é diverso podendo ir até à disfunção ventricular esquerda. O desenvolvimento de metodologias ecocardiográficas que permitam melhorar o estadiamento da cardiopatia hipertensiva e identificar precocemente hipertensos em risco de evolução desfavorável poderá ser c...
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Published in | Revista portuguesa de cardiologia Vol. 33; no. 1; pp. 23 - 33 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | Portuguese |
Published |
Elsevier España
01.01.2014
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Subjects | |
Online Access | Get full text |
ISSN | 0870-2551 2174-2030 |
DOI | 10.1016/j.repc.2013.07.009 |
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Abstract | O espectro da cardiopatia hipertensiva é diverso podendo ir até à disfunção ventricular esquerda. O desenvolvimento de metodologias ecocardiográficas que permitam melhorar o estadiamento da cardiopatia hipertensiva e identificar precocemente hipertensos em risco de evolução desfavorável poderá ser clinicamente relevante.
Identificar o compromisso subclínico da função ventricular esquerda em indivíduos hipertensos com fração de ejeção preservada (>55%), utilizando parâmetros globais da deformação miocárdica (speckle tracking).
Foram estudados dois grupos de indivíduos: normotensos (N=20; 59+7 anos; 55% homens) e hipertensos (N=229; 62+12 anos; 57% homens), tendo sido avaliados vários parâmetros clínicos e ecocardiográficos de função ventricular esquerda (convencionais e parâmetros globais da deformação miocárdica longitudinal e circunferencial). Foram determinados os cut-offs da normalidade a partir do grupo de normotensos e aplicados ao grupo de hipertensos, para se detetar disfunção ventricular esquerda subclínica. Foram utilizados os testes t de Student, Mann-Whitney e do Qui-Quadrado.
O grupo de hipertensos apresentou na sua maioria hipertensão arterial do tipo I (53,7%), pressão arterial controlada (64,9%) e alteração estrutural do ventrículo esquerdo em 54,8% dos indivíduos. Não se detetaram diferenças significativas entre os grupos nos parâmetros globais de deformação longitudinal ou circunferencial. Após aplicação dos cut-offs da normalidade nos hipertensos, foram identificados 35 indivíduos (15,3%) com disfunção ventricular esquerda subclínica.
A avaliação da deformação miocárdica permitiu identificar o compromisso sistólico subclínico da função ventricular esquerda num grupo de hipertensos com fração de ejeção preservada. A relevância clínica destes achados deverá ser confirmada por estudos de follow–up prolongado.
Introduction The spectrum of hypertensive heart disease is wide, and can include left ventricular dysfunction. The development of echocardiographic parameters to improve patient stratification and to identify early adverse changes could be clinically useful.
Aim To identify subclinical left ventricular dysfunction in hypertensive subjects with preserved ejection fraction (>55%), identified by global parameters of myocardial strain on speckle tracking imaging.
Methods This was a comparative observational study of two groups of individuals: normotensive (n=20, age 59±7 years, 55% male) and hypertensive (n=229, age 62±12 years, 57% male). Left ventricular function was assessed by various conventional clinical and echocardiographic parameters and global longitudinal and circumferential myocardial strain. Cut-off values to detect subclinical left ventricular dysfunction were established and applied in the hypertensive group. The Student's t test, Mann-Whitney test and chi-square test were used for the comparative statistical analysis.
Results Most hypertensive subjects (53.7%) had grade I hypertension; blood pressure was controlled in 64.9%, and 54.8% showed left ventricular structural changes. Comparison between the normotensive and hypertensive groups showed no significant differences in parameters of global longitudinal or circumferential systolic strain. Application of the cut-offs to the hypertensive group identified 35 individuals (15.3%) as having subclinical left ventricular systolic dysfunction as assessed by global longitudinal myocardial strain parameters.
Conclusions In this group of hypertensive patients, global myocardial strain parameters identified a group of individuals with subclinical left ventricular systolic dysfunction despite preserved ejection fraction. The clinical relevance of these findings needs to be assessed in long-term follow-up studies. |
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AbstractList | O espectro da cardiopatia hipertensiva é diverso podendo ir até à disfunção ventricular esquerda. O desenvolvimento de metodologias ecocardiográficas que permitam melhorar o estadiamento da cardiopatia hipertensiva e identificar precocemente hipertensos em risco de evolução desfavorável poderá ser clinicamente relevante.
Identificar o compromisso subclínico da função ventricular esquerda em indivíduos hipertensos com fração de ejeção preservada (>55%), utilizando parâmetros globais da deformação miocárdica (speckle tracking).
Foram estudados dois grupos de indivíduos: normotensos (N=20; 59+7 anos; 55% homens) e hipertensos (N=229; 62+12 anos; 57% homens), tendo sido avaliados vários parâmetros clínicos e ecocardiográficos de função ventricular esquerda (convencionais e parâmetros globais da deformação miocárdica longitudinal e circunferencial). Foram determinados os cut-offs da normalidade a partir do grupo de normotensos e aplicados ao grupo de hipertensos, para se detetar disfunção ventricular esquerda subclínica. Foram utilizados os testes t de Student, Mann-Whitney e do Qui-Quadrado.
O grupo de hipertensos apresentou na sua maioria hipertensão arterial do tipo I (53,7%), pressão arterial controlada (64,9%) e alteração estrutural do ventrículo esquerdo em 54,8% dos indivíduos. Não se detetaram diferenças significativas entre os grupos nos parâmetros globais de deformação longitudinal ou circunferencial. Após aplicação dos cut-offs da normalidade nos hipertensos, foram identificados 35 indivíduos (15,3%) com disfunção ventricular esquerda subclínica.
A avaliação da deformação miocárdica permitiu identificar o compromisso sistólico subclínico da função ventricular esquerda num grupo de hipertensos com fração de ejeção preservada. A relevância clínica destes achados deverá ser confirmada por estudos de follow–up prolongado.
Introduction The spectrum of hypertensive heart disease is wide, and can include left ventricular dysfunction. The development of echocardiographic parameters to improve patient stratification and to identify early adverse changes could be clinically useful.
Aim To identify subclinical left ventricular dysfunction in hypertensive subjects with preserved ejection fraction (>55%), identified by global parameters of myocardial strain on speckle tracking imaging.
Methods This was a comparative observational study of two groups of individuals: normotensive (n=20, age 59±7 years, 55% male) and hypertensive (n=229, age 62±12 years, 57% male). Left ventricular function was assessed by various conventional clinical and echocardiographic parameters and global longitudinal and circumferential myocardial strain. Cut-off values to detect subclinical left ventricular dysfunction were established and applied in the hypertensive group. The Student's t test, Mann-Whitney test and chi-square test were used for the comparative statistical analysis.
Results Most hypertensive subjects (53.7%) had grade I hypertension; blood pressure was controlled in 64.9%, and 54.8% showed left ventricular structural changes. Comparison between the normotensive and hypertensive groups showed no significant differences in parameters of global longitudinal or circumferential systolic strain. Application of the cut-offs to the hypertensive group identified 35 individuals (15.3%) as having subclinical left ventricular systolic dysfunction as assessed by global longitudinal myocardial strain parameters.
Conclusions In this group of hypertensive patients, global myocardial strain parameters identified a group of individuals with subclinical left ventricular systolic dysfunction despite preserved ejection fraction. The clinical relevance of these findings needs to be assessed in long-term follow-up studies. |
Author | Zimbarra Cabrita, Inês Cortez-Dias, Nuno Belo, Adriana Sousa, Catarina Pinto, Fausto J. Nunes, Ana Gonçalves, Susana |
Author_xml | – sequence: 1 givenname: Susana surname: Gonçalves fullname: Gonçalves, Susana email: susanafdgpires@gmail.com organization: Departamento de Cardiologia, Instituto Cardiovascular de Lisboa, Lisboa, Portugal – sequence: 2 givenname: Nuno surname: Cortez-Dias fullname: Cortez-Dias, Nuno organization: Serviço de Cardiologia, Centro Académico de Medicina de Lisboa, Hospital de Santa Maria, CCUL, Lisboa, Portugal – sequence: 3 givenname: Ana surname: Nunes fullname: Nunes, Ana organization: Departamento de Cardiologia, Instituto Cardiovascular de Lisboa, Lisboa, Portugal – sequence: 4 givenname: Adriana surname: Belo fullname: Belo, Adriana organization: Departamento de Estatística, Centro Nacional de Coleção de Dados em Cardiologia, Sociedade Portuguesa de Cardiologia, Lisboa, Portugal – sequence: 5 givenname: Inês surname: Zimbarra Cabrita fullname: Zimbarra Cabrita, Inês organization: Departamento de Cardiologia, Instituto Cardiovascular de Lisboa, Lisboa, Portugal – sequence: 6 givenname: Catarina surname: Sousa fullname: Sousa, Catarina organization: Departamento de Cardiologia, Instituto Cardiovascular de Lisboa, Lisboa, Portugal – sequence: 7 givenname: Fausto J. surname: Pinto fullname: Pinto, Fausto J. organization: Departamento de Cardiologia, Instituto Cardiovascular de Lisboa, Lisboa, Portugal |
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CitedBy_id | crossref_primary_10_1007_s12574_021_00546_5 crossref_primary_10_1016_j_repc_2017_06_013 crossref_primary_10_1016_j_repce_2017_06_010 crossref_primary_10_1007_s11906_021_01148_3 crossref_primary_10_1016_j_repc_2020_11_012 crossref_primary_10_1177_1742271X20963346 crossref_primary_10_1177_2047487317721644 crossref_primary_10_1016_j_jcmg_2016_07_013 crossref_primary_10_1016_j_repce_2021_08_003 |
Cites_doi | 10.1161/CIRCIMAGING.108.811620 10.1016/S0140-6736(02)11403-6 10.1016/j.echo.2010.05.020 10.1016/j.echo.2008.01.015 10.1161/01.CIR.102.15.1788 10.1056/NEJMoa052256 10.1001/jama.289.19.2560 10.1111/j.1540-8175.2007.00460.x 10.1016/j.echo.2008.10.006 10.1016/j.echo.2006.07.007 10.1016/j.echo.2009.08.004 10.1016/j.echo.2010.02.015 10.1097/HJH.0b013e3281fc975a 10.1016/j.jcmg.2007.12.007 10.1016/j.echo.2006.08.024 10.1053/euje.2000.0031 10.1093/ejechocard/jep007 10.1016/j.echo.2005.10.005 10.1161/01.HYP.35.2.580 10.1007/s11596-008-0129-2 10.1161/CIRCULATIONAHA.104.531558 |
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Keywords | Hypertension Subclinical left ventricular dysfunction Disfunção ventricular esquerda subclínica Echocardiography OR Myocardial strain Ecocardiografia PG-SL PG-SReL PG-SReC PG-SRaC PG-SC VE Deformação miocárdica HTA PG-SRsL PG-SRaL Speckle tracking PG-SRsC Hipertensão arterial |
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Snippet | O espectro da cardiopatia hipertensiva é diverso podendo ir até à disfunção ventricular esquerda. O desenvolvimento de metodologias ecocardiográficas que... |
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SubjectTerms | Deformação miocárdica Disfunção ventricular esquerda subclínica Echocardiography Ecocardiografia Hipertensão arterial Hypertension Myocardial strain Speckle tracking Subclinical left ventricular dysfunction |
Title | Disfunção sistólica ventricular esquerda detetada por speckle tracking em hipertensos com fração de ejeção preservada |
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