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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.
Baek, Hee-Kyung; Park, Tae-Ho; Park, Sun-Yi; Kim, Jung-Hwan; Seo, Jeong-Min; Kim, Woo-Jae; Nam, Young-Hee; Kim, Moo-Hyun; Kim, Young-Dae.
Afiliação
  • Baek HK; Department of Cardiology, Dong-A University College of Medicine, Busan, Korea.
Korean Circ J ; 41(3): 137-42, 2011 Mar.
Article em En | MEDLINE | ID: mdl-21519512
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 AND

METHODS:

Healthy volunteers (n=76) and patients with hypertension (n=51) aged ≥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.
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Texto completo: 1 Bases de dados: MEDLINE Idioma: En Revista: Korean Circ J Ano de publicação: 2011 Tipo de documento: Article

Texto completo: 1 Bases de dados: MEDLINE Idioma: En Revista: Korean Circ J Ano de publicação: 2011 Tipo de documento: Article