Percutaneous peripheral laser angioplasty with a pulsed Nd-YAG laser and sapphire tips View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1991-03

AUTHORS

Jan Kvasnička, F. Staněk, F. Boudík, V. Kubeček, J. Křivánek, R. Keclík, H. Procházková, K. Hamal

ABSTRACT

Percutaneous transluminal laser angioplasty with a pulsed Nd-YAG laser (1064 nm wavelength, 100μs pulse duration, up to 0.4 J per pulse, 10 Hz repetition rate) coupled to optical fibres with sapphire tips of 1.8 and 2.2 mm diameter was performed under experimental conditions and then in 30 chronic occlusions of femoral and popliteal arteries in 22 patients.The experimental study in 11 human cadaverous arteries revealed that this laser system was effective in the recanalization of seven femoropopliteal occlusions, but the relative rigidity of the sapphire-tipped contact probe prevented its access to two infrapopliteal vessels. Two perforations occurred after the recanalization of 18 and 15 cm, respectively.Clinically the procedure was successful in 17 out of 25 sessions (68%). The probe formed a primary channel of at least 2.0 mm width which was further dilated by conventional balloon catheter. Ankle/brachial systolic pressure index (ABPI) increased from 0.43±0.13 to 0.79±0.21 after the procedure. In eight cases complications occurred. Two reocclusions were treated by Streptokinase infusion, two procedures were repeated 2 months later, one patient was referred to elective bypass surgery, and three patients were treated conservatively. Six patients were followed-up for more than 6 months. In one patient claudication of 400 m reappeared. ABPI showed a moderate decrease from 0.84±0.20 to 0.69±0.19.These first results are encouraging and it is likely that this method could become an important adjunct to balloon angioplasty. More... »

PAGES

43-48

References to SciGraph publications

  • 1987-09. The paradox of thermal ablation without thermal injury in LASERS IN MEDICAL SCIENCE
  • 1990. Contact Laser Angioplasty of Peripheral and Coronary Arteries Using Pulsed Nd:YAG and Nd:YAG Lasers in LASER/OPTOELEKTRONIK IN DER MEDIZIN / LASER/OPTOELECTRONICS IN MEDICINE
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf02042645

    DOI

    http://dx.doi.org/10.1007/bf02042645

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1017225784


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    187 Second Department of Medicine, Charles' University, U nemocnice 2, CS-128 08, Prague 2, Czechoslovakia
    188 rdf:type schema:Organization
    189 grid-institutes:grid.6652.7 schema:alternateName Czech Technical University, Prague, Czechoslovakia
    190 schema:name Czech Technical University, Prague, Czechoslovakia
    191 rdf:type schema:Organization
     




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