23 March 2007 Fiber photo-catheters with spatially modulated diffusers for laser treatment of atrial fibrillation
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Abstract
A new generation of the optical fiber catheter has been developed for surgical treatment of atrial fibrillation with laser radiation. Atrial fibrillation (AF) is a heart rhythm abnormality that involves irregular and rapid heartbeats. The surgical maze procedure was the first treatment that offered a permanent solution for maintaining a normal sinus rhythm in patients with AF. This procedure involves the creation of a maze-like series of incisions in the left atrium, resulting in isolation of the pulmonary vein and removal of the left atrial appendage. To produce long continuous transmural lesions laser diodes operating in near IR range along with end-emitting fiber catheters have been used experimentally. The absence of side-emitting flexible catheters with the ability to produce long continuous lesions limits the further development of this technology. In this research, a new type of an optical catheter consisting of a flexible, spatially modulated fiber diffuser has been used to make continuous photocoagulation lesions for effective maze procedure treatments.
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Igor Peshko, Vladimir Rubtsov, "Fiber photo-catheters with spatially modulated diffusers for laser treatment of atrial fibrillation", Proc. SPIE 6424, Photonic Therapeutics and Diagnostics III, 642421 (23 March 2007); doi: 10.1117/12.700970; https://doi.org/10.1117/12.700970
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