Hypophosphatemia: A Common but Overlooked Cause of Cardiac Dysfunction in a Child with DKA

Area of Science:

• Pediatric Endocrinology
• Critical Care Medicine
• Metabolic Disorders

Background:

• Diabetic ketoacidosis (DKA) is a severe complication of type 1 diabetes mellitus (T1DM) in children.
• DKA management can lead to various complications, including electrolyte imbalances like hypophosphatemia.
• While asymptomatic hypophosphatemia is common, severe symptomatic cases are rare but potentially life-threatening.

Observation:

• A case of a newly diagnosed T1DM child experiencing DKA is presented.
• During DKA management, the patient developed severe symptomatic hypophosphatemia.
• This led to significant cardiac complications, including arrhythmias and cardiac dysfunction.

Findings:

• Severe hypophosphatemia can manifest with serious cardiac complications in pediatric DKA patients.
• These complications include arrhythmias and impaired cardiac function.
• The patient's cardiac status improved significantly with prompt recognition and correction of hypophosphatemia.

Implications:

• Highlights the importance of vigilant electrolyte monitoring during DKA treatment in children.
• Emphasizes that severe symptomatic hypophosphatemia, though rare, requires immediate attention due to its potential for critical cardiac events.
• Suggests that timely intervention for hypophosphatemia can prevent severe morbidity and mortality in pediatric DKA.