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Novel Insights into the Pathogenesis and Prevention of Intradialytic Hypotension

Frank M van der Sande, Marijke J Dekker, Karel M L Leunissen

    Blood Purification
    |February 26, 2018
    PubMed

    Insights

    Intradialytic hypotension (IDH), a common issue during hemodialysis (HD), is linked to fluid removal and patient factors. Strategies like managing weight gain and dialysate temperature can improve patient comfort and safety.

    Area of Science:

    • Nephrology
    • Cardiovascular Physiology

    Background:

    • Intradialytic hypotension (IDH) is a frequent complication of hemodialysis (HD), often linked to adverse outcomes, particularly when defined by a nadir systolic blood pressure <90 mm Hg.
    • IDH pathogenesis involves the intermittent nature of HD and patient-specific factors like age, diabetes mellitus, and cardiac failure.

    Purpose of the Study:

    • To highlight the significance of tissue perfusion changes during HD.
    • To emphasize the potential of monitoring tissue perfusion for optimizing dialysis procedures.

    Main Methods:

    • The abstract does not specify the methods used in the study.
    • Focuses on the physiological mechanisms of IDH, including fluid removal and thermally induced vasodilation.
    • Discusses the relevance of monitoring tissue perfusion during HD.

    Main Results:

    • Fluid removal during ultrafiltration is a primary cause of hypovolemia.
    • Thermally induced reflex vasodilation impairs the hemodynamic response to hypovolemia.
    • Changes in tissue perfusion during HD may lead to long-term organ damage.

    Conclusions:

    • Complete prevention of IDH is unlikely.
    • Key strategies for safer and more comfortable dialysis include reducing interdialytic weight gain, controlling core temperature via dialysate temperature adjustment, and considering more frequent or prolonged HD sessions.
    Abstract

    Keywords:
    DialysisHypotensionNew insightsPrevention

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