Proposal for New Classification and Practical Use of Diuretics According to Their Effects on the Serum Chloride...

Area of Science:

• Nephrology
• Cardiology
• Electrolyte Physiology

Background:

• Diuretic therapy for heart failure (HF) traditionally focuses on sodium and water balance.
• Chloride (Cl) is increasingly recognized for its prognostic value and role in regulating body fluid status in HF.
• The "chloride theory" proposes chloride as a central factor in HF pathophysiology.

Purpose of the Study:

• To introduce a unifying hypothesis for HF pathophysiology centered on chloride.
• To propose a novel classification and practical application of diuretics based on their effects on serum chloride concentration.
• To highlight the potential of chloride modulation as a therapeutic strategy in HF management.

Main Methods:

• Review of current understanding of chloride's role in HF.
• Proposal of the "chloride theory" unifying HF pathophysiology.
• Development of a new diuretic classification based on serum chloride effects.

Main Results:

• Chloride is identified as a key electrolyte regulating renal tubular reabsorption and body fluid distribution.
• Serum chloride concentration changes correlate with HF worsening and recovery.
• Diuretic selection and dosage can modulate serum chloride levels.

Conclusions:

• Modulating serum chloride concentration via diuretic therapy presents an attractive treatment option for HF.
• A new diuretic classification based on chloride effects can guide clinical practice.
• This approach is expected to be a useful strategy for treating HF patients.