Acute areflexic paralysis. Association with hyperalimentation and hypophosphatemia

Area of Science:

• Neurology
• Internal Medicine
• Biochemistry

Background:

• Hyperalimentation, or artificial nutrition, is a critical care intervention.
• Metabolic disturbances can arise during nutritional support.
• Hypophosphatemia is a known complication of refeeding and nutritional support.

Observation:

• Two patients developed acute areflexic paralysis with sensory loss and respiratory insufficiency.
• These symptoms emerged during intensive nutritional therapy (hyperalimentation).
• The neurological presentation mimicked other severe neuromuscular disorders.

Findings:

• Hypophosphatemia was identified as the likely cause of the neurological symptoms.
• Electromyography showed decreased insertional activity, suggesting neuromuscular dysfunction.
• Muscle biopsy revealed minor, nonspecific neurogenic changes, not indicative of primary myopathy.

Implications:

• Prompt recognition and correction of hypophosphatemia are crucial for managing paralysis during hyperalimentation.
• This case highlights the importance of monitoring serum phosphorus levels in patients receiving nutritional support.
• Understanding this link can prevent severe neurological complications and guide treatment strategies.