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Related Concept Videos

Biological Effects of Radiation02:59

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All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
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The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
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Reduction of Iatrogenic Atrial Septal Defects with an Anterior and Inferior Transseptal Puncture Site when Operating the Cryoballoon Ablation Catheter
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Radiation Exposure Optimisation During AF Ablations Utilising the Cryoballoon Ablation System.

John Hayes1, Ian Smith2, Heather O'Connell3

  • 1Queensland Cardiovascular Group, Brisbane, Qld, Australia.

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|January 23, 2019
PubMed
Summary

Cryoballoon ablation significantly reduces radiation exposure and procedure time compared to radiofrequency ablation for atrial fibrillation (AF). This method offers a safer and more efficient treatment option for patients undergoing AF ablation.

Keywords:
AblationAtrial fibrillationCryoballoonFluoroscopyRadiationRadiofrequency

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Area of Science:

  • Cardiology
  • Medical Imaging
  • Electrophysiology

Background:

  • Minimizing radiation exposure during cardiac catheterization, especially atrial fibrillation (AF) ablation, is crucial.
  • Advanced techniques and technologies are essential for radiation risk reduction.

Purpose of the Study:

  • To compare radiation doses between cryoballoon and radiofrequency (RF) ablation for AF.
  • Evaluate procedural efficiency and safety of different AF ablation methods.

Main Methods:

  • A single-center registry of 418 consecutive patients undergoing AF ablation.
  • Comparison of radiation dose area product (DAP) and procedure times for RF ablation (with/without anti-scatter grid) and cryoballoon ablation (with/without 3D imaging).

Main Results:

  • Cryoballoon ablation (Cryo) with gridless fluoroscopy showed significantly lower DAP (2.13 Gycm²) than RF ablation without a grid (RF Gridless; 3.31 Gycm²).
  • Cryoballoon procedures were shorter (80 mins vs. 133 mins for RF Gridless) with less fluoroscopy time (13.2 vs. 17.3 mins).
  • Cryoballoon with 3D imaging (Cryo 3D) and RF with a grid (RF Grid) had higher radiation doses and were used less frequently.

Conclusions:

  • Cryoballoon AF ablation using gridless fluoroscopy is efficient, safe, and effective.
  • This technique significantly reduces radiation exposure and procedure time compared to conventional RF ablation.