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[Significance of serum calcium and phosphorus control for the cardiac function in patients with long term

Atsushi Onoue1, Yasuaki Higashino, Takashi Ohno

  • 1Chouju Clinic Division of Ultrasound.

Clinical Calcium
|November 8, 2005
PubMed

Insights

Serum calcium and phosphorus levels do not directly cause cardiomegaly in hemodialysis patients. However, controlling serum phosphorus is crucial for inhibiting cardiomegaly progression, as it correlates positively with left ventricular mass index (LVMI).

Area of Science:

  • Nephrology
  • Cardiology
  • Biochemistry

Context:

  • Hemodialysis patients frequently develop cardiac valve calcification.
  • Calcification correlates with increased left ventricular mass index (LVMI), a marker of cardiomegaly.
  • Existing research on the impact of serum calcium and phosphorus on cardiomegaly is limited.

Purpose:

  • To investigate the relationship between serum calcium and phosphorus levels and cardiomegaly in hemodialysis patients.
  • To determine if serum calcium and phosphorus influence the progression of cardiac valve calcification and LVMI.

Summary:

  • Cardiac valve calcification is prevalent in hemodialysis patients, affecting 44% of mitral valves and 75% of aortic valves.
  • While serum calcium and phosphorus did not directly cause cardiomegaly, a significant negative correlation was found between serum calcium and LVMI (P=0.0008).
  • A significant positive correlation was observed between serum phosphorus and LVMI (P=0.0105), suggesting phosphorus control is key.

Impact:

  • Findings suggest that managing serum phosphorus levels is a critical factor in preventing or inhibiting cardiomegaly in hemodialysis patients.
  • This research highlights the importance of monitoring and controlling mineral metabolism in hemodialysis patients to mitigate cardiovascular complications.
  • The study provides evidence-based recommendations for clinical practice regarding the management of hyperphosphatemia to reduce cardiac risks.

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