Arterial complications following cardiac catheterization in children less than 10 kg

Area of Science:

• Pediatric Cardiology
• Interventional Cardiology
• Vascular Access

Background:

• Congenital heart disease often requires cardiac catheterization in infants and small children.
• Arterial complications are a concern during these procedures.
• Optimizing anticoagulation and access techniques is crucial for patient safety.

Purpose of the Study:

• To investigate if a higher dose of heparin reduces arterial complications in pediatric patients undergoing cardiac catheterization.
• To identify risk factors for arterial complications in this population.

Main Methods:

• A double-blinded randomized trial involving 60 patients weighing 10 kg or less.
• Patients received either 100 IU/kg or 150 IU/kg of heparin.
• Arterial access was established using a 4F cannula; activated clotting time was measured.

Main Results:

• The incidence of significant arterial complications was low (5%).
• A higher heparin dose (150 IU/kg) resulted in a lower mean activated clotting time (251s vs. 199s).
• Independent risk factors for complications included weight < 4 kg, age < 1 month, and cannula size > 4F.

Conclusions:

• Arterial access with a 4F cannula is safe in pediatric patients weighing up to 10 kg.
• The incidence of arterial complications is low and not significantly reduced by increasing the heparin dose.
• Careful patient selection and appropriate cannula size are key to minimizing risks.