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Hypocalcaemic seizures following gastrectomy

Insights

Two infants developed hypocalcemia (low calcium) and rickets after stomach removal surgery for esophageal anomalies. Treatment with vitamin D resolved these serious complications, highlighting a rare risk of gastric surgery in infants.

Area of Science:

  • Pediatric Surgery
  • Pediatric Endocrinology
  • Nutritional Deficiencies

Background:

  • Subtotal gastrectomy is a rare surgical procedure in infants, often necessitated by congenital anomalies like tracheo-esophageal anomalies.
  • Complications following major gastrointestinal surgery in neonates and infants can be severe and require specialized management.
  • Nutritional deficiencies, particularly vitamin D deficiency, can arise from significant alterations in gastrointestinal anatomy and function.

Observation:

  • Two infants presented with severe hypocalcemia (low blood calcium) and clinical/radiological evidence of rickets.
  • Presenting symptoms included grand mal seizures, a critical sign of severe hypocalcemia.
  • Both patients exhibited elevated parathyroid hormone levels, indicating a secondary response to chronic hypocalcemia.

Findings:

  • The reported cases demonstrate a link between subtotal gastrectomy in infancy and the subsequent development of vitamin D deficiency-induced hypocalcemia and rickets.
  • Parenteral vitamin D therapy was effective in correcting the biochemical abnormalities (hypocalcemia, elevated parathyroid hormone) and resolving the bone changes and clinical symptoms.
  • This represents the first documented instance of vitamin D deficiency as a complication of gastric surgery in the infant population.

Implications:

  • Subtotal gastrectomy in infants, though rare, carries a risk of significant metabolic complications, including vitamin D deficiency and hypocalcemia.
  • Early recognition and aggressive management with vitamin D supplementation are crucial for patients undergoing such procedures.
  • Further research into long-term nutritional monitoring and management strategies for infants following gastric surgery is warranted.

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