Association of Blood Pressure Control Level With Left Ventricular Morphology and Function and With Subclinical

Koki Nakanishi1, Zhezhen Jin2, Shunichi Homma1

  • 1Department of Medicine, Columbia University, New York, NY.

Insights

Intensive systolic blood pressure control significantly benefits cardiac health in elderly hypertensive patients, reducing left ventricular hypertrophy. However, it showed no significant impact on subclinical cerebrovascular disease.

Area of Science:

  • Cardiology
  • Neurology
  • Hypertension Research

Background:

  • Hypertension can lead to target organ damage in the heart and brain.
  • Left ventricular (LV) hypertrophy and subclinical cerebrovascular disease are early indicators of this damage.
  • Elderly hypertensive patients are particularly vulnerable to these complications.

Purpose of the Study:

  • To evaluate the impact of intensive systolic blood pressure (SBP) control on LV morphology and function.
  • To assess the effect of intensive SBP control on subclinical cerebrovascular disease in elderly hypertensive patients.
  • To compare the benefits of intensive versus less intensive SBP control on cardiac and cerebral outcomes.

Main Methods:

  • The study involved 420 hypertensive patients without prior heart failure or stroke from the CABL study.
  • Patients underwent 2D echocardiography and brain MRI.
  • Three SBP control groups were defined: intensive (<120 mmHg), less intensive (120-139 mmHg), and uncontrolled (≥140 mmHg).

Main Results:

  • LV hypertrophy and diastolic dysfunction were significantly lower in the intensive SBP control group compared to less intensive and uncontrolled groups.
  • Less intensive SBP control was associated with a higher risk of LV hypertrophy (aOR, 3.26; P=0.013).
  • Intensive SBP control did not significantly reduce the risk of silent brain infarcts or white matter hyperintensity volume.

Conclusions:

  • Intensive systolic blood pressure control demonstrates a more pronounced beneficial effect on cardiac subclinical disease than on cerebral subclinical disease.
  • These findings suggest a differential impact of intensive BP management on target organ protection.
  • Further research may explore optimal SBP targets for comprehensive cardiovascular and cerebrovascular risk reduction.
Abstract

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