Background: Transcatheter mitral valve repair is an increasingly used therapy for mitral regurgitation which requires fluoroscopic guidance. Limiting radiation exposure during lengthy procedures is important for both patient and operator safety. This study aimed to investigate radiation dose during contemporary use of MitraClip implantation and the effects of a dose reduction program.
Methods: A total of 115 patients who underwent MitraClip implantation were prospectively enrolled in a single-center observational study. During the inclusion period, our institution adopted a radiation dose reduction program, comprising lowering of fluoroscopy pulse rate and image target dose. The first 58 patients were treated with conventional fluoroscopy settings, while the following 57 patients underwent the procedure with the newly implemented low dose protocol.
Results: Radiation dose area product significantly decreased after introduction of the low dose protocol (693 [366-1231] vs. 2265 [1517-3914] cGy·cm , p < 0.001). After correcting for fluoroscopy time, gender and body mass index, the low dose protocol emerged as a strong negative predictor of radiation dose (p < 0.001), reducing dose area product by 64% (95% confidence interval [57-70]). Device time, device success, and procedural safety did not differ between the normal dose and low dose group. Furthermore, the low dose protocol was not associated with an increased incidence of a combined endpoint consisting of death, repeat intervention, or heart surgery during 12 months follow-up.
Conclusion: Reduction of radiation exposure during transcatheter mitral valve repair by 64% is feasible without affecting procedural success or safety.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/ccd.30046 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Contribution of Nuclear Fragmentation to Dose and RBE in Carbon-Ion Radiotherapy.
Radiat Res
January 2025
Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota.
Variable relative biological effectiveness (RBE) of carbon radiotherapy may be calculated using several models, including the microdosimetric kinetic model (MKM), stochastic MKM (SMKM), repair-misrepair-fixation (RMF) model, and local effect model I (LEM), which have not been thoroughly compared. In this work, we compared how these four models handle carbon beam fragmentation, providing insight into where model differences arise. Monoenergetic and spread-out Bragg peak carbon beams incident on a water phantom were simulated using Monte Carlo.
View Article and Find Full Text PDFEx Vivo Propagation of Pinctada Birnavirus Using Mantle Tissue Fragment Culture: Application for Measuring Replication at Different Temperatures, TCID Assay, and UV Sensitivity.
Pathogens
January 2025
Japan Fisheries Research and Education Agency, Pathology Division, Aquaculture Research Department, Fisheries Technology Institute, Minami-Ise 516-0193, Mie, Japan.
Pinctada birnavirus (PiBV) is the causative agent of summer atrophy in pearl oyster ( (Gould)). The disease, which induces mass mortality in juveniles less than 1 year old and abnormalities in adults, was first reported in Japan in 2019. Research on the disease has been hindered by the lack of cell lines capable of propagating PiBV.
View Article and Find Full Text PDFThe SPICE Modeling of a Radiation Sensor Based on a MOSFET with a Dielectric HfO/SiO Double-Layer.
Sensors (Basel)
January 2025
Faculty of Arts and Sciences, Bolu Abant Izzet Baysal University, 14280 Bolu, Turkey.
We report on a procedure for extracting the SPICE model parameters of a RADFET sensor with a dielectric HfO/SiO double-layer. RADFETs, traditionally fabricated as PMOS transistors with SiO, are enhanced by incorporating high-k dielectric materials such as HfO to reduce oxide thickness in modern radiation sensors. The fabrication steps of the sensor are outlined, and model parameters, including the threshold voltage and transconductance, are extracted based on experimental data.
View Article and Find Full Text PDFLow-Dose Ionizing Radiation and Thyroid Diseases and Functional Modifications in Exposed Workers: A Systematic Review.
J Clin Med
January 2025
Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy.
With technological development, ionizing radiation has found applications in numerous occupations. However, the determination and quantification of the damage resulting from exposure to it remains rather unclear, along with the damage to particular organs. The aim of this systematic review was to investigate the relationship between low-dose ionizing radiation (LDIR) in exposed workers and possible functional changes and cancer development in the thyroid gland.
View Article and Find Full Text PDFRetrospective Comparison of Stiff Wire-Based 2D3D, Traditional 3D3D Image Fusion, and Non-Image Fusion Techniques and Their Role in Thoracic Aortic Endovascular Repair.
J Clin Med
January 2025
Department of Cardiovascular Surgery, Houston Methodist Hospital, 6550 Fannin St, Houston, TX 77030, USA.
: The aim of this study was to compare the outcomes of stiff wire-based 2D3D, 3D3D image fusion (IF), and non-image fusion techniques for simple zone 2 and zone 3 TEVAR cases in terms of radiation exposure, contrast dose, and fusion and projection accuracy. : A single-center retrospective observational study was conducted based on data gathered from patients who underwent TEVAR between 2016 and 2023 at our tertiary aortic referral center. Those who underwent Z2 and Z3 TEVAR during the indicated period were included.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!