Delivery of intramyocardial diffused laser light for treatment of postinfarction ventricular tachycardia

David L. Ware, Chunjie Yang, Ashok Gowda, Brent A. Bell, Paul Boor, Massoud Motamedi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ventricular tachycardia (VT) is a rapid and life-threatening cardiac arrhythmia that most often occurs after healing of myocardial infarction. The same catheter techniques that use resistive endocardial heating to treat supraventricular tachycardias are less effective against post-infarction VT, in part because cure of the latter arrhythmia requires large volume, deep tissue coagulation. Greater risk may also be incurred when standard percutaneous methods are used to induce deep tissue heating, because excess endocardial damage can cause mural thrombi, and a large area of non-lethal endocardial injury may itself generate VT. To address these problems we have developed a unique optical fiber for direct intramyocardial photocoagulation which, when coupled to a diode laser (805 nm), can generate lesions up to 1 cm deep and wide without disruption of the endocardium. With further refinement this system may effectively and safely cure post- infarction VT.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages85-88
Number of pages4
Volume2970
DOIs
StatePublished - 1997
EventLasers in Surgery: Advanced Characterization, Therapeutics, and Systems VII - San Jose, CA, United States
Duration: Feb 8 1997Feb 8 1997

Other

OtherLasers in Surgery: Advanced Characterization, Therapeutics, and Systems VII
CountryUnited States
CitySan Jose, CA
Period2/8/972/8/97

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Keywords

  • Arrhythmia ablation
  • Laser
  • Thermal coagulation
  • Ventricular tachycardia

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Ware, D. L., Yang, C., Gowda, A., Bell, B. A., Boor, P., & Motamedi, M. (1997). Delivery of intramyocardial diffused laser light for treatment of postinfarction ventricular tachycardia. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2970, pp. 85-88) https://doi.org/10.1117/12.275029