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Relationship between left ventricular end-diastolic compliance and abnormal Doppler mitral filling in patients with

B L Cai1, L S Gong, J P Ye

  • 1Department of Medicine, Ruijin Hospital, Shanghai Second Medical University.

Chinese Medical Journal
|November 1, 1991
PubMed

Insights

Patients with coronary artery disease and hypertension show reduced left ventricular end-diastolic compliance (LVEDC). Abnormal Doppler diastolic function and LVEDC occur simultaneously, indicating other factors contribute to diastolic dysfunction.

Area of Science:

  • Cardiology
  • Diabetology

Background:

  • Coronary artery disease (CAD) and hypertension commonly coexist.
  • Diastolic dysfunction is a significant complication in patients with cardiovascular disease.

Purpose of the Study:

  • To investigate left ventricular end-diastolic compliance (LVEDC) and transmitral flow velocities in patients with CAD and hypertension.
  • To explore the relationship between LVEDC, Doppler diastolic function, and diastolic dysfunction in this patient group.

Main Methods:

  • Utilized left ventricular (LV) catheterization and pulsed-Doppler echocardiography.
  • Measured LVEDC and transmitral flow velocities in 19 patients with CAD and hypertension, and 10 healthy controls.

Main Results:

  • Patients exhibited significantly lower LVEDC compared to normal subjects (P < 0.01).
  • Abnormal Doppler diastolic function, including elevated late diastolic peak flow velocity (PVA), coincided with decreased LVEDC in patients.
  • A negative correlation between PVA and LVEDC, observed in controls, was absent in patients.

Conclusions:

  • Patients with CAD and hypertension demonstrate impaired left ventricular diastolic function.
  • Factors beyond reduced LVEDC contribute to the development of diastolic dysfunction in these patients.
  • Diastolic dysfunction in this population is multifactorial, requiring further investigation.

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