Reduction in operator radiation exposure during transradial coronary procedures using a simple lead rectangle.

Area of Science:

• Interventional Cardiology
• Radiation Safety
• Medical Physics

Background:

• Transradial access for percutaneous coronary intervention (PCI) is associated with fewer complications but raises concerns about operator radiation exposure.
• Ionizing radiation poses a cumulative risk of injury to healthcare professionals, particularly interventional cardiologists.
• Effective shielding strategies are crucial for minimizing radiation dose during fluoroscopically guided procedures.

Purpose of the Study:

• To evaluate the efficacy of a lead-attenuator in reducing operator radiation exposure during transradial PCI.
• To assess the impact of a lead-attenuator on scattered radiation levels in the catheterization laboratory.

Main Methods:

• A prospective, observational study involving 52 patients undergoing transradial PCI.
• Patients were divided into two groups: standard operator protection (n=26) and standard protection plus a lead-attenuator (n=26).
• Operator radiation exposure at the thyroid level was measured and compared between the groups.

Main Results:

• The lead-attenuator group showed a significant reduction in operator radiation exposure at the thyroid level (20.2%, p < 0.0001).
• Within the attenuator group, radiation was reduced by 94.5% underneath the lead attenuator compared to above it (p < 0.0001).
• Despite similar fluoroscopy times and examination doses, the attenuator provided substantial additional protection.

Conclusions:

• A simple lead rectangle-attenuator significantly lowers radiation exposure for the primary operator during transradial PCI.
• This protective measure may help mitigate long-term risks of radiation-induced injury for interventional cardiologists.
• The lead attenuator should be considered standard equipment in catheterization laboratories due to its effectiveness in reducing scattered radiation.