Determination of Diastolic Dysfunction Cut-Off Value by Tissue Doppler Imaging in Adults 70 Years of Age or Older: A Comparative Analysis of Pulsed-Wave and Color-Coded Tissue Doppler Imaging
Korean Circulation Journal
;
: 137-142, 2011.
Artigo
em Inglês
| WPRIM
| ID: wpr-224366
ABSTRACT
BACKGROUND AND OBJECTIVES:
The cut-off value of diastolic dysfunction by tissue Doppler imaging (TDI) is affected by aging and modalities used (pulsed-wave vs. color-coded). The purpose of this study was to investigate the diastolic function of healthy elderly people and to determine the appropriate cut-off value of diastolic dysfunction in elderly individuals. SUBJECTS ANDMETHODS:
Healthy volunteers (n=76) and patients with hypertension (n=51) aged > or =70 years underwent 2-dimensional and Doppler echocardiography. Mitral annulus velocities of TDI were measured at septal and lateral sites using the pulsed-wave and color-coded modalities. The appropriate cut-off value of diastolic dysfunction for healthy elderly individuals was defined as the lower limit of the 95% confidence interval for early diastolic mitral annulus velocity (Ea).RESULTS:
The mean septal and lateral Ea were 6.5+/-1.5 and 8.3+/-1.7 cm/s, respectively, by pulsed-wave TDI, and 6.1+/-1.4 and 7.9+/-1.7 cm/s, respectively, by color-coded TDI. The cut-off values for diastolic dysfunction were as follows septal and lateral Ea were 6.1 and 7.9 cm/s by pulsed-wave TDI, and 5.7 and 7.5 cm/s by color-coded TDI, respectively. When the group was stratified by gender, Ea was significantly lower in women than men.CONCLUSION:
When interpreting diastolic function as measured by TDI in elderly subjects, different cut-off values should be considered based on the TDI modality, annulus site, and gender.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Envelhecimento
/
Ecocardiografia
/
Ecocardiografia Doppler
/
Insuficiência Cardíaca Diastólica
/
Hipertensão
Limite:
Adulto
/
Idoso
/
Feminino
/
Humanos
Idioma:
Inglês
Revista:
Korean Circulation Journal
Ano de publicação:
2011
Tipo de documento:
Artigo
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