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Electrocardiographic changes following dialysis

C J Diskin, K H Salzsieder, R J Solomon

    Nephron
    |January 1, 1981
    PubMed
    Summary
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    Electrocardiographic changes suggesting ischemia are common after hemodialysis in chronic renal failure patients. These changes, particularly in the R wave, do not correlate with body fluid shifts during dialysis.

    Area of Science:

    • Nephrology
    • Cardiology
    • Clinical Electrophysiology

    Background:

    • Chronic renal failure (CRF) necessitates hemodialysis.
    • Hemodialysis can induce physiological changes affecting the cardiovascular system.
    • Previous studies suggested potential cardiac ischemia during or after dialysis.

    Purpose of the Study:

    • To investigate electrocardiographic (ECG) changes post-hemodialysis in male patients with CRF.
    • To determine if R wave height correlates with fluid volume changes during dialysis.

    Main Methods:

    • Prospective investigation of 20 male patients undergoing hemodialysis.
    • Electrocardiographic monitoring to assess changes in T wave, ST segment, and R wave configuration.
    • Analysis of R wave height in relation to body fluid volume changes.

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    Main Results:

    • Ischemia-consistent T wave changes observed in 30% of patients.
    • Ischemia-consistent ST segment changes observed in 45% of patients.
    • Ischemia-consistent R wave changes observed in 75% of patients.
    • No significant variation in R wave height with body fluid volume changes post-dialysis.

    Conclusions:

    • Electrocardiographic changes resembling ischemia are frequently observed in the post-hemodialysis period for CRF patients.
    • These ischemic-appearing changes are of uncertain clinical significance.
    • R wave height is not influenced by fluid volume shifts during hemodialysis.