Effects of Sodium-Glucose Co-Transporter 2 Inhibitors on Serum Chloride Concentrations in Patients with Heart Failure

  • 0Department for Cardiovascular Diseases, Dubrava University Hospital, 10000 Zagreb, Croatia.

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Summary

This summary is machine-generated.

Serum chloride levels, not the sodium-to-chloride ratio, predict better outcomes in heart failure (HF) patients treated with SGLT2 inhibitors. Monitoring chloride may be crucial for managing HF prognosis.

Area Of Science

  • Cardiology
  • Nephrology
  • Endocrinology

Background

  • Serum chloride concentration is emerging as a significant prognostic predictor in heart failure (HF), potentially surpassing serum sodium levels.
  • An elevated sodium-to-chloride (Na/Cl) ratio has been linked to increased mortality in acute HF.
  • The impact of SGLT2 inhibitors (SGLT2is) on serum chloride dynamics in HF warrants investigation.

Purpose Of The Study

  • To evaluate changes in serum chloride concentrations and Na/Cl ratio over 12 months in HF patients initiating SGLT2is.
  • To correlate these electrolyte changes with clinical factors and treatment response.

Main Methods

  • Prospective observational study of 241 HF patients.
  • Data collected at baseline, 6 months, and 12 months after SGLT2i initiation.
  • Analysis of serum chloride, Na/Cl ratio, and NT-proBNP levels.

Main Results

  • Higher serum chloride concentrations at 6 and 12 months independently predicted lower NT-proBNP levels.
  • No significant changes in chloride concentrations or Na/Cl ratio were observed during follow-up.
  • Cardiovascular risk factors did not significantly influence chloride level increases.

Conclusions

  • Hypochloremia may indicate a poor prognosis in HF patients and could be a modifiable risk factor, potentially influenced by SGLT2is.
  • Routine monitoring of serum chloride concentrations is recommended for HF patient management.

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