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Published on: August 28, 2018
Computed tomography coronary angiography is the way forward for evaluation of children with Kawasaki disease
Manphool Singhal1, Pankaj Gupta1, Surjit Singh1
1Advanced Pediatrics Center, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, INDIA-160012.
Insights
Computed tomography coronary angiography (CTCA) offers a promising alternative for evaluating coronary artery abnormalities in children with Kawasaki disease (KD). This technique provides detailed imaging while minimizing radiation exposure, addressing limitations of traditional methods.
Area of Science:
- Pediatric Cardiology
- Diagnostic Imaging
- Vascular Inflammation
Background:
- Kawasaki disease (KD) is a leading cause of acquired heart disease in children, characterized by acute vasculitis.
- Cardiovascular complications, particularly coronary artery abnormalities, affect 15-25% of untreated KD patients.
- Current diagnostic modalities like echocardiography and catheter angiography have significant limitations in evaluating coronary arteries in children.
Purpose of the Study:
- To review the application of computed tomography coronary angiography (CTCA) in the diagnosis and management of Kawasaki disease in pediatric patients.
- To highlight the advantages of CTCA over conventional imaging techniques for coronary artery assessment in KD.
- To discuss strategies for optimizing CTCA protocols to reduce radiation dose in children.
Main Methods:
- Review of existing literature on the use of CTCA in pediatric populations, with a focus on Kawasaki disease.
- Analysis of CTCA's technical capabilities, including temporal resolution, image quality, and radiation dose.
- Comparison of CTCA findings with echocardiography and catheter angiography in KD patients.
Main Results:
- CTCA provides high-resolution, motion-free images of coronary arteries, including distal segments often missed by echocardiography.
- Advances in CT technology allow for acceptable radiation doses in pediatric patients.
- Limited but growing evidence suggests CTCA's efficacy in detecting KD-related coronary artery abnormalities.
Conclusions:
- CTCA is emerging as a valuable tool for evaluating coronary artery abnormalities in children with Kawasaki disease.
- Its ability to visualize distal vessels and provide detailed anatomical information surpasses traditional methods.
- Further research and standardized protocols are needed to fully establish CTCA's role and optimize radiation safety in pediatric KD.
Abstract:
Kawasaki disease (KD) is an acute idiopathic vasculitis affecting infants and children. Coronary artery abnormalities and myocarditis are the major cardiovascular complications of KD. Coronary artery abnormalities develop in 15-25% of untreated KD. Two-dimensional transthoracic echocardiography has hitherto been considered the modality of choice for evaluation of children with KD. There are, however, several limitations inherent to echocardiography - including limited evaluation of distal vessels, left circumflex artery and poor acoustic window in growing children. Catheter angiography is the gold standard for evaluation of coronary artery abnormalities in older children and adults; however it also has inherent limitations - including complications related to its invasive nature, higher radiation exposure, and inability to evaluate intramural abnormalities. Thus serial invasive coronary angiography studies are not feasible in children. There have been major advances in computed tomography (CT) coronary imaging so that it is now possible to delineate the coronary artery anatomy with higher temporal resolution and motion-free images at all heart rates with acceptable radiation exposure. There is, however, a paucity of literature with regard to the use of this technique in children with KD. In this review, we discuss the application of computed tomography coronary angiography (CTCA) in children with KD with special reference to strategies aimed at reducing the effective radiation dose.
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