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Published on: June 11, 2012
Severe hypoglycemia during successful treatment of diffuse hemangiomatosis with propranolol
Ernesto Bonifazi1, Angelo Acquafredda, Antonella Milano
1Pediatric Dermatology Unit, University of Bari, Bari, Italy. ejpd@dermatologiapediatrica.com
Insights
Oral propranolol effectively treated infantile hemangiomas but can cause hypoglycemia, a dangerous side effect. Vigilance for low blood sugar is crucial in infants receiving propranolol, especially with reduced caloric intake.
Area of Science:
- Pediatric Pharmacology
- Dermatology
- Neonatology
Background:
- Infantile hemangiomas are common benign vascular tumors.
- Propranolol is a first-line treatment for problematic infantile hemangiomas.
- Potential adverse effects of propranolol in infants require careful monitoring.
Observation:
- A 27-day-old infant with diffuse hemangiomatosis received oral propranolol.
- Significant regression of skin and liver hemangiomas was observed.
- The infant later experienced seizures associated with hypoglycemia and increased ketone bodies.
Findings:
- Hypoglycemia (low blood glucose) is a significant and often unrecognized side effect of propranolol therapy.
- This adverse event is more likely in infants with decreased oral intake.
- Prompt recognition and management of hypoglycemia are essential.
Implications:
- Increased clinical vigilance for hypoglycemia is recommended in infants on chronic propranolol treatment, particularly those with diminished caloric intake.
- This case highlights the importance of monitoring blood glucose levels in infants receiving propranolol.
- Early detection and intervention can prevent severe complications associated with hypoglycemia.
Abstract:
A 27-day-old male infant with diffuse hemangiomatosis of the skin and liver was treated with oral propranolol at a dosage of 2 mg/kg per day. Five months later skin and liver hemangiomas regressed almost completely. After 160 days of onset of propranolol, the patient presented with seizures on waking up. Laboratory examinations showed blood glucose of 15 mmol (n.v. 50-110) and increased ketone bodies. Propranolol was recommenced at a lower dosage the day after the crisis and then withdrawn when the baby was aged ten months. Hypoglycemia is the most frequent and insidious side effect of propranolol, mainly occurring in circumstances with diminished oral intake. Although the risk appears small, increased vigilance for hypoglycemia in children on chronic propranolol treatment who have decreased caloric intake for any reason seems prudent.
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