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Índice de dissincronia ventricular: comparação com a fração de ejeção bidimensional e tridimensional / Ventricular dyssynchrony index: comparison with two-dimensional and three-dimensional ejection fraction
Vieira, Marcelo L. C; Cury, Alexandre F; Gustavo, Naccarato; Oliveira, Wercules A; Monaco, Cláudia G; Cordovil, Adriana; Rodrigues, Ana C. T; Lira Filho, Edgar B; Fischer, Cláudio H; Morhy, Samira S.
  • Vieira, Marcelo L. C; Hospital Israelita Albert Einstein. São Paulo. BR
  • Cury, Alexandre F; Hospital Israelita Albert Einstein. São Paulo. BR
  • Gustavo, Naccarato; Hospital Israelita Albert Einstein. São Paulo. BR
  • Oliveira, Wercules A; Hospital Israelita Albert Einstein. São Paulo. BR
  • Monaco, Cláudia G; Hospital Israelita Albert Einstein. São Paulo. BR
  • Cordovil, Adriana; Hospital Israelita Albert Einstein. São Paulo. BR
  • Rodrigues, Ana C. T; Hospital Israelita Albert Einstein. São Paulo. BR
  • Lira Filho, Edgar B; Hospital Israelita Albert Einstein. São Paulo. BR
  • Fischer, Cláudio H; Hospital Israelita Albert Einstein. São Paulo. BR
  • Morhy, Samira S; Hospital Israelita Albert Einstein. São Paulo. BR
Arq. bras. cardiol ; 91(3): 156-162, set. 2008. ilus, graf, tab
Article in Portuguese, English | LILACS | ID: lil-494310
RESUMO
FUNDAMENTO O acoplamento eletromecânico (sincronia) do ventrículo esquerdo (VE) tem importância na análise da performance sistólica, especialmente para a indicação da terapia de ressincronização cardíaca em pacientes com ICC avançada.

OBJETIVO:

Comparar a sincronia do VE analisada com ecocardiograma (eco) tridimensional (3D) em tempo real com medidas de FEVE obtidas com ECO 2D e 3D.

MÉTODOS:

Estudo prospectivo de 92 indivíduos (56 homens, 47±10 anos), 60 com anatomia cardíaca (eco) e ECG normais (Grupo N), 32 com cardiomiopatia dilatada (Grupo CMD). Com o emprego do ECO 3D foram aferidos FEVE, volumes e índice de dissincronia (ID) por cento para 16 segmentos do VE; com o ECO 2D foram medidos FEVE (método de Simpson) e volumes sistólico e diastólico do VE. Análise estatística coeficiente de correlação (Pearson), 95 por cento IC, teste de regressão linear, teste de Bland & Altman, p<0,05.

RESULTADOS:

O ID por cento variou de 0,2900 a 28,1000 (5,2014±6,3281), a FEVE 3D variou de 0,17 a 0,81 (0,52±0,17); a FEVE 2D variou de 0,3 a 0,69 (0,49±0,11). A correlação entre ID e FEVE 3D foi (r) -0,7432, p<0,0001, IC -0,8227 a -0,6350, a relação linear entre ID (x) e FEVE 3D (y) foi y = 19,8124 + (-27,9578) x , p<0,0001. A correlação entre ID e FEVE 2D foi (r) -0,7012, p<0,0001, IC -0,7923 a -0,5797.

CONCLUSÃO:

Nesta casuística foi observada boa correlação negativa entre o acoplamento sistólico tridimensional eletromecânico do VE e a FEVE medida ao ecocardiograma (3D e 2D).
ABSTRACT
BACKGORUND Left ventricular (LV) electromechanical coupling (synchrony) is important in the analysis of the systolic performance, especially for the indication of cardiac resynchronization therapy in patients with advanced CHF.

OBJECTIVE:

To compare LV synchrony as analyzed by real-time three-dimensional (3D) echocardiography (ECHO) with LVEF measurements as obtained with 2D and 3D ECHO.

METHODS:

Prospective study of 92 individuals (56 men, 47 ± 10 years of age), of which 60 had normal heart structure (ECHO) and ECG (N group), and 32 had dilated cardiomyopathy (DCM group). Using 3D ECHO, LVEF, volumes and dyssynchrony index ( percentDI) for 16 LV segments were measured. Using 2D ECHO, LVEF (Simpson's method), and LV systolic and diastolic volumes were measured. Statistical

analysis:

Pearson's correlation coefficient, 95 percent CI, linear regression model, Bland & Altman analysis, p<0.05.

RESULTS:

percentDI ranged from 0.2900 to 28.1000 (5.2014±6.3281), 3D LVEF ranged from 0.17 to 0.81 (0.52±0.17); and 2D LVEF ranged from 0.3 to 0.69 (0.49±0.11). The correlation between DI and 3D LVEF was (r) -0.7432, p<0.0001, CI -0.8227 to -0.6350, the linear relation between DI (x) and 3D LVEF (y) was y = 19.8124 + (-27.9578) x, p<0.0001. The correlation between DI and 2D LVEF was (r) -0.7012, p<0.0001, CI -0.7923 to -0.5797.

CONCLUSION:

In this case series, a good negative correlation was observed between LV electromechanical three-dimensional systolic coupling and LVEF as measured by echocardiography (3D and 2D).
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Ventricular Function, Left / Ventricular Dysfunction, Left / Echocardiography, Three-Dimensional / Cardiomyopathies Type of study: Observational study Limits: Female / Humans / Male Language: English / Portuguese Journal: Arq. bras. cardiol Journal subject: Cardiology Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital Israelita Albert Einstein/BR

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Full text: Available Index: LILACS (Americas) Main subject: Ventricular Function, Left / Ventricular Dysfunction, Left / Echocardiography, Three-Dimensional / Cardiomyopathies Type of study: Observational study Limits: Female / Humans / Male Language: English / Portuguese Journal: Arq. bras. cardiol Journal subject: Cardiology Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: Hospital Israelita Albert Einstein/BR