Propionic Acidemia, Cardiomyopathies, and Arrhythmias.

Area of Science:

• Cardiology
• Biochemistry
• Acid-Base Physiology

Background:

• Systemic acid-base imbalances profoundly affect cardiac function.
• The role of accumulating organic anions in acidosis, particularly in hereditary organic acidemias, is under-investigated.
• Organic anions can reach millimolar concentrations, significantly impacting cardiac physiology.

Purpose of the Study:

• To review the cardiac consequences in patients with propionic acidemia (PA).
• To explore the cardiac sequelae associated with organic anion accumulation in PA.
• To consolidate current knowledge on heart conditions in PA patients.

Main Methods:

• Literature review focusing on cardiac outcomes in propionic acidemia.
• Analysis of studies investigating organic anion effects on the heart.
• Synthesis of clinical and experimental findings related to PA and cardiac disease.

Main Results:

• Cardiomyopathies and arrhythmias are prevalent in propionic acidemia.
• Organic anions, specifically propionate, are implicated in cardiac dysfunction.
• Pathophysiological mechanisms linking organic anions to heart disease require further elucidation.

Conclusions:

• Propionic acidemia presents significant cardiac risks, including cardiomyopathies and arrhythmias.
• Understanding the role of organic anions like propionate is crucial for managing cardiac complications in PA.
• Further research is essential to clarify the mechanisms underlying organic anion-induced cardiac pathology.