Effect of volume reduction on mitral annular diastolic velocities in hemodialysis patients
Y Agmon1, J K Oh, J T McCarthy
1Department of Biostatistics, Mayo Clinic and Mayo Foundation, Rochester, Minnesota, USA.
The American Journal of Cardiology
|November 15, 2000
Insights
Volume reduction during hemodialysis impacts diastolic function differently. Early diastolic mitral annular velocities were less affected than mitral inflow velocities, offering insights into cardiac changes.
Area of Science:
- Cardiology
- Nephrology
- Echocardiography
Background:
- Diastolic dysfunction is a common complication in patients undergoing hemodialysis.
- Volume status significantly influences diastolic function parameters.
Purpose of the Study:
- To evaluate the impact of volume reduction from hemodialysis on left ventricular diastolic function.
- To compare changes in mitral annular velocities and mitral inflow velocities post-hemodialysis.
Main Methods:
- Prospective study involving 13 patients undergoing hemodialysis.
- Echocardiographic assessment of diastolic Doppler parameters before and after hemodialysis.
- Analysis of early diastolic mitral annular velocities (e') and early diastolic mitral inflow velocities (E).
Main Results:
- Volume reduction led to a decrease in both early diastolic mitral annular velocities and early diastolic mitral inflow velocities.
- The decrease in early diastolic mitral annular velocities was less pronounced compared to the decrease in early diastolic mitral inflow velocities.
- This suggests differential effects of volume reduction on myocardial relaxation and early diastolic filling.
Conclusions:
- Hemodialysis-induced volume reduction affects left ventricular diastolic filling parameters.
- Mitral annular velocities may be more resilient to acute volume changes than mitral inflow velocities.
- Findings highlight the importance of considering volume status when interpreting diastolic function in hemodialysis patients.
Abstract:
The effect of volume reduction on various diastolic Doppler parameters of left ventricular filling was assessed in 13 patients before and after hemodialysis. Volume reduction decreased early diastolic mitral annular velocities to a lesser extent than early diastolic mitral inflow velocities.
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