| Percutaneous transcatheter laser balloon ablation from the canine coronary sinus: implications for the Wolff-Parkinson-White syndrome. | |
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MedLine Citation:
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PMID: 2332999 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Transcatheter direct current electrical shocks for ablation of left-sided accessory pathways in Wolff-Parkinson-White patients have led to serious complications. We report the feasibility of percutaneous transcatheter laser balloon ablation of left-sided accessory pathways from the coronary sinus using a 1,064-nm, continuous wave Nd:YAG laser triple lumen catheter with an optical fiber terminating in a cylindrical diffusing tip within a 2-cm-long, 3-mm-diameter balloon transparent to Nd:YAG laser radiation. In eight mongrel dogs (18 to 31 kg), the laser balloon catheter was positioned via an 8 French guide catheter in the distal and proximal coronary sinus. During balloon inflation, two to three consecutive laser doses of 30 W x 20 sec were applied to each site (cumulative energy, 1,200 to 1,800 J). Coronary angiography, left ventriculography, and coronary sinus injection were performed before and after laser exposure. After percutaneous transcatheter laser balloon ablation, there was no evidence of mitral regurgitation, left circumflex artery, coronary sinus obstruction, or perforation. Coagulation necrosis and/or polymorphonuclear infiltrates involving the atrioventricular groove and left atrial wall over a mean length of 17 mm were present in all eight dogs sacrificed 6 +/- 1 hr postablation. In conclusion, percutaneous transcatheter laser balloon ablation from the coronary sinus is free of immediate major complications and may be feasible for potential interruption of left-sided accessory pathways. |
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Authors:
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C D Schuger; R T Steinman; M H Lehmann; L Schuger; D Boldea; L McMath; J R Spears |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Lasers in surgery and medicine Volume: 10 ISSN: 0196-8092 ISO Abbreviation: Lasers Surg Med Publication Date: 1990 |
Date Detail:
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Created Date: 1990-06-07 Completed Date: 1990-06-07 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8007168 Medline TA: Lasers Surg Med Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 140-8 Citation Subset: IM |
Affiliation:
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Department of Medicine, Wayne State University/Harper Hospital, Detroit, MI 48201. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Balloon Dilatation* / methods Coronary Angiography Dogs Heart / radiography Heart Conduction System / surgery* Laser Therapy* / methods Myocardium / pathology Wolff-Parkinson-White Syndrome / surgery* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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