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CC BY 4.0 · Thorac Cardiovasc Surg 2025; 73(S 03): e1-e10
DOI: 10.1055/a-2514-7436
Pediatric and Congenital Cardiology

Radiation Exposure during Cardiac Interventions in Congenital Heart Defects: A Multicenter German Registry Analysis 2012–2020

Anja Tengler
1   Division of Pediatric Cardiology and Pediatric Intensive Care, Ludwig Maximilian University of Munich, Munich, Germany
,
Jörg Michel
2   Department of Pediatric Cardiology, Pulmology and Pediatric Intensive Care, University Hospital Tuebingen, Tuebingen, Germany
,
Claudia Arenz
3   German Pediatric Heart Center, University of Bonn, Bonn, Germany
,
UIrike Bauer
4   National Register for Congenital Heart Defects, Berlin, Germany
,
Jens Beudt
4   National Register for Congenital Heart Defects, Berlin, Germany
,
Alexander Horke
5   Division of surgery for Congenital Heart Defects, Department of Cardiac Surgery University of Hannover, Hannover, Germany
,
Gunter Kerst
6   Clinic for Pediatric Cardiology and Congenital Heart Disease, Klinikum Stuttgart, Stuttgart, Germany
,
Andreas Beckmann 
7   Clinic for Cardiac Surgery and Pediatric Cardiac Surgery, Heart Center Duisburg, Duisburg, Germany
,
Michael Hofbeck 
2   Department of Pediatric Cardiology, Pulmology and Pediatric Intensive Care, University Hospital Tuebingen, Tuebingen, Germany
› Institutsangaben Funding The responsible bodies for the registry are the German Society for Thoracic and Cardiovascular Surgery (DGTHG) and the German Society for Pediatric Cardiology and Congenital Heart Defects (DGPK). The registry receives financial support from all participating institutions. In addition, from 2012 to 2016, the registry was funded by the German Heart Foundation (Deutsche Herzstiftung e.V.).
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Abstract

Background Interventional cardiac catheterizations have gained major importance in the treatment of congenital heart defects (CHDs). Since patients with CHDs frequently require lifelong medical care and sometimes subsequent invasive treatment, repeated radiation exposure during interventional procedures is a relevant issue concerning potential radiation-related risks. Therefore, a 9-year subanalysis on radiation data during interventional cardiac catheterizations from the German Registry for Cardiac Operations and Interventions in patients with CHDs was performed.

Methods The German Registry for Cardiac Operations and Interventions in Patients with CHDs is a real-world, prospective all-comers database collecting clinical and procedural data on invasive treatment of CHDs. From January 2012 until December 2020, a total of 28,374 cardiac catheter interventions were recorded. For a homogeneous case mix and for obtaining comparable data, eight specified interventions were selected for detailed evaluation. The selected procedures were: atrial septal defect (ASD)/patent foramen ovale (PFO) occlusion, patent ductus arteriosus (PDA) occlusion, ventricular septal defect (VSD) occlusion, coarctation of the aorta (CoA) balloon dilatation and stent implantation, aortic valvuloplasty, pulmonary valvuloplasty, and transcatheter pulmonary valve implantation (TPVI). Data on radiation exposure included total fluoroscopy time (TFT), dose area product (DAP), and DAP per body weight (DAP/BW).

Results The cohort accounted for 9,350 procedures, including 3,426 ASD/PFO occlusions, 2,039 PDA occlusions, 599 aortic and 1,536 pulmonary valvuloplasties, 383 balloon dilatations and 496 stent implantations for CoA, 168 VSD occlusions, and 703 TPVI. Six hundred and ten ASD/PFO procedures (17.8%) were performed without radiation. During the 9-year period, median annual TFT, DAP, and DAP/BW showed a continuous decrease while radiation burden correlated with intervention complexity: For ASD/PFO and PDA occlusion, aortic and pulmonary valvuloplasty as well as balloon dilatation of CoA the median DAP/BW was <20.0 μGy*m2/kg, while median values of 26.3 μGy*m2/kg and 31.6 μGy*m2/kg were noted for stent treatment of CoA and VSD closure, respectively. Radiation burden was highest in TPVI with a median TFT of 23.6 minutes, median DAP of 4,491 μGy*m2, and median DAP/BW of 79.4 μGy*m2/kg.

Conclusion A decrease in radiation exposure was found in eight cardiac interventions from January 2012 to December 2020. Comparison with international registries revealed a good quality of radiation protection. The data underline the requirement of surveillance of radiation burden, especially in this patient group.

Keywords

congenital heart disease - CHD - pediatric - cardiac catheterization/intervention (including PCI) - stents - database


Publikationsverlauf

Eingereicht: 25. November 2024

Angenommen: 10. Januar 2025

Accepted Manuscript online:
13. Januar 2025

Artikel online veröffentlicht:
04. März 2025

© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

Georg Thieme Verlag KG
Oswald-Hesse-Straße 50, 70469 Stuttgart, Germany

 

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