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[Laser coronary angioplasty. Critical analysis of the first patients].

Publication ,  Journal Article
Arie, S; Tcheng, JE; Garcia, DP; Checchi, H; Horta, P; Esteves Filho, A; Souza, AN; de Brito Júnior, FS; Bellotti, G; Pileggi, F
Published in: Arq Bras Cardiol
April 1994

PURPOSE: To evaluate the success rate and complications, as well as the technical difficulties involved catheter laser coronary angioplasty, making evident the unsuccessful cases. METHODS: Twenty eight patients were treated with laser from August to November, 1993. The treatment was complemented with balloon angioplasty. Lesions were complex: 10 (36%) were type B and 18 (64%), type C. Concerning the obstruction grade, 18 (64%) were > or = 95%. Laser generator CVX 300(TM) Spectranectics as well as Extreme(TM) and Vitesse(TM) catheters with 1.4, 1.7 and 2.0mm in diameter, concentric and excentric, were used. Laser procedure success was defined as a reduction > 20% in the obstruction grade. The procedure success was attended when the residual stenosis was < 50% after a 15-minute observation, after balloon complementation. RESULTS: The unsuccess rate with laser catheter (Lc) was 34% (10 lesions) of which 3 cases were solved by other methods, 5 were not successful because of anatomic difficulties in surpassing the lesion and, in the two others the success criterium in the reduction of the obstruction grade of the coronary artery was not achieved, although the lesion surpassing was possible with the use of balloon catheter. The final success reached 89% (21 lesions). The procedure complications were a case of thrombosis, a perforation accompanied by a myocardial infarction and another myocardial infarction (non-Q wave), all with good outcome. CONCLUSION: The use of laser in the treatment of coronary artery obstructive lesions is a viable method. Nonetheless, more experience is necessary to demonstrate its actual value, optimizate the results and may be reduce restenosis rate.

Duke Scholars

Published In

Arq Bras Cardiol

ISSN

0066-782X

Publication Date

April 1994

Volume

62

Issue

4

Start / End Page

225 / 232

Location

Brazil

Related Subject Headings

  • Middle Aged
  • Male
  • Humans
  • Female
  • Evaluation Studies as Topic
  • Coronary Disease
  • Cardiovascular System & Hematology
  • Angioplasty, Balloon, Laser-Assisted
  • Angioplasty, Balloon, Coronary
  • Aged, 80 and over
 

Citation

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Arie, S., Tcheng, J. E., Garcia, D. P., Checchi, H., Horta, P., Esteves Filho, A., … Pileggi, F. (1994). [Laser coronary angioplasty. Critical analysis of the first patients]. Arq Bras Cardiol, 62(4), 225–232.
Arie, S., J. E. Tcheng, D. P. Garcia, H. Checchi, P. Horta, A. Esteves Filho, A. N. Souza, F. S. de Brito Júnior, G. Bellotti, and F. Pileggi. “[Laser coronary angioplasty. Critical analysis of the first patients].Arq Bras Cardiol 62, no. 4 (April 1994): 225–32.
Arie S, Tcheng JE, Garcia DP, Checchi H, Horta P, Esteves Filho A, et al. [Laser coronary angioplasty. Critical analysis of the first patients]. Arq Bras Cardiol. 1994 Apr;62(4):225–32.
Arie, S., et al. “[Laser coronary angioplasty. Critical analysis of the first patients].Arq Bras Cardiol, vol. 62, no. 4, Apr. 1994, pp. 225–32.
Arie S, Tcheng JE, Garcia DP, Checchi H, Horta P, Esteves Filho A, Souza AN, de Brito Júnior FS, Bellotti G, Pileggi F. [Laser coronary angioplasty. Critical analysis of the first patients]. Arq Bras Cardiol. 1994 Apr;62(4):225–232.

Published In

Arq Bras Cardiol

ISSN

0066-782X

Publication Date

April 1994

Volume

62

Issue

4

Start / End Page

225 / 232

Location

Brazil

Related Subject Headings

  • Middle Aged
  • Male
  • Humans
  • Female
  • Evaluation Studies as Topic
  • Coronary Disease
  • Cardiovascular System & Hematology
  • Angioplasty, Balloon, Laser-Assisted
  • Angioplasty, Balloon, Coronary
  • Aged, 80 and over