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Related Experiment Videos

[Left ventricular mass and glomerular hyperfiltration in essential hypertension].

G du Cailar1, J Ribstein, A Avignon

  • 1Policlinique, hôpital Lapeyronie, Montpellier.

Archives Des Maladies Du Coeur Et Des Vaisseaux
|July 1, 1990
PubMed
Summary

High sodium intake is linked to hyperfiltration and increased left ventricular mass index in newly diagnosed essential hypertension. This suggests early organ involvement in untreated hypertensive individuals.

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Area of Science:

  • Nephrology
  • Cardiology
  • Hypertension Research

Context:

  • Essential hypertension (HT) is a prevalent condition with potential early target organ involvement.
  • Assessing early renal and cardiac changes in never-treated mild hypertensives is crucial for understanding disease progression.

Purpose:

  • To investigate the relationship between sodium intake, renal function (glomerular filtration rate - GFR, effective renal plasma flow - ERPF), and left ventricular mass index (LVMI) in never-treated essential hypertensives.
  • To identify potential early indicators of target organ damage in early-stage hypertension.

Summary:

  • Eighty mild, never-treated essential hypertensives underwent assessment of ERPF, GFR, LVMI, 24-hour urinary sodium excretion (UNaV), and urinary kallikrein (Kall).
  • Hyperfiltering (HF) patients (n=21) with elevated GFR were pair-matched with normofiltering (NF) hypertensives (n=21).

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  • Results indicated a significant association between high sodium intake (UNaV), hyperfiltration (elevated GFR), and increased LVMI in the HF group compared to the NF group.

    • Impact:

    • Findings suggest that elevated sodium intake may contribute to hyperfiltration and cardiac remodeling (higher LVMI) even in the early stages of untreated essential hypertension.
    • This highlights the importance of early dietary sodium restriction in managing hypertension and preventing target organ damage.
    • The study provides insights into the pathophysiology of early hypertensive organ damage, particularly the interplay between sodium, renal hemodynamics, and cardiac structure.