International Journal of Gerontology
Volume 3, Issue 1 , Pages 66-74, March 2009

Determinants of Left Ventricular Geometric Alterations and Related Clinical and Metabolic Factors in a General Population

  • Chuan-Chuan Liu

      Affiliations

    • Health Evaluation Center, Mackay Memorial Hospital, Taipei, Taiwan
    • Graduate Institute of Health Care Organization Administration, College of Public Health, National Taiwan University, Taipei, Taiwan
    • ,
  • Chi-In Lo

      Affiliations

    • Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
    • Co-first author
    • ,
  • Chung-Lieh Hung

      Affiliations

    • Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
    • Mackay Medicine, Nursing and Management College, Taipei, Taiwan
    • Corresponding Author InformationCorrespondence to: Dr Chung-Lieh Hung, Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, 8F-1, 17, Lane 93, Section 2, Chung-Shan North Road, Taipei, Taiwan
    • ,
  • Hung-Ju Ko

      Affiliations

    • Health Evaluation Center, Mackay Memorial Hospital, Taipei, Taiwan
    • ,
  • Charles Jia-Yin Hou

      Affiliations

    • Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
    • Mackay Medicine, Nursing and Management College, Taipei, Taiwan
    • ,
  • Hung-I Yeh

      Affiliations

    • Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
    • Mackay Medicine, Nursing and Management College, Taipei, Taiwan
    • ,
  • Cheng-Ho Tsai

      Affiliations

    • Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
    • ,
  • Shou-Chuan Shih

      Affiliations

    • Health Evaluation Center, Mackay Memorial Hospital, Taipei, Taiwan
    • ,
  • Ray-E Chang

      Affiliations

    • Graduate Institute of Health Care Organization Administration, College of Public Health, National Taiwan University, Taipei, Taiwan

Accepted 31 January 2009.

Article Outline

SUMMARY 

Background

Left ventricular (LV) remodeling has been shown to impart prognostic significance in previous studies. However, the underlying exact mechanisms involved and interactions between LV geometry alterations and age with other clinical and biochemical variables in general population have not been well established.

Methods

A total of 406 consecutive subjects were enrolled in a health evaluation center-based population study (mean age, 51.5 ± 10.9 years; 42% women). Data including baseline characteristics, echocardiography, biochemistry and biomarkers were all collected and evaluated. Univariate and multivariate regression analysis was performed to test the relationship between relative wall thickness (RWT) and other variables. We also divided the subjects into older and younger groups, compared RWT between the two groups, and analyzed the distribution of LV geometry in these groups.

Results

The prevalence of diabetes and hypertension in our study population was relatively small (11.6% and 16.5%, respectively). The most common type of LV geometry in our study was normal (67.5%) and concentric remodeling (30.3%) compared with a relatively small proportion of concentric LV hypertrophy (1.5%) and eccentric hypertrophy (< 1%). Of all 406 subjects evaluated, age, uric acid, height, systolic blood pressure and serum insulin level were all independent factors associated with RWT in a multivariate regression model.

Conclusion

In our study, we revealed that aging, together with baseline blood pressure and serum biochemistries, were associated with LV geometric alterations. These data suggest that the LV remodeling process actually involves dynamic and complex interactions with multiple metabolic factors in an unselected general population in Taiwan.

Key Words:  aging , biomarkers , geometry , relative wall thickness , remodeling

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PII: S1873-9598(09)70022-5

doi:10.1016/S1873-9598(09)70022-5

International Journal of Gerontology
Volume 3, Issue 1 , Pages 66-74, March 2009

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