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Pattern of Radiation Exposure in Healthcare Professionals During Coronary Angiography

Background:

Invasive cardiologic procedures expose physicians and nurses/technicians to the risks of ionizing radiation. The aim of this study was to determine the exposure patterns in healthcare professionals during cardiologic procedures.

Methods:

Prospective study including patients undergoing invasive cardiologic procedures between December 2011 and August 2012 using flat-panel detector fluoroscopy. Clinical, angiographic and radiation exposure characteristics were recorded in a dedicated database. Patterns of radiation exposure were determined in patients undergoing diagnostic cardiac catheterization. The correlation between surgeon and nurse/technician dose was also evaluated.

Results:

The sample included 119 patients undergoing catheterization. The patient mean air kerma dose and dose-area product was 549 ± 220 mGy and 29,054 ± 14,696 mGy.cm2, respectively. Physicians and nurses/technicians were exposed to a mean effective dose of 0.47 ± 0.16 and 0.28 ± 0.13 mSv per exam, respectively. The correlation between physicians and nurses/technicians effective dose was 0.54 (p < 0.001).

Conclusions:

Physicians and nurses/technicians are exposed to low ionizing radiation doses during diagnostic cardiac catheterization. Nurses/technicians are exposed to approximately 60% of the operating physician's dose.

Cardiac catheterization; Radiation, ionizing; Radiation exposure; Radiation dosage


Sociedade Brasileira de Hemodinâmica e Cardiologia Intervencionista - SBHCI R. Beira Rio, 45, 7o andar - Cj 71, 04548-050 São Paulo – SP, Tel. (55 11) 3849-5034, Fax (55 11) 4081-8727 - São Paulo - SP - Brazil
E-mail: sbhci@sbhci.org.br