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Low Speed Rotational Angioplasty in Chronic Coronary Artery Obstructions

  • M. Kaltenbach
  • C. Vallbracht

Abstract

Between 2/87 and 4/89 low speed rotational angioplasty (RA) was attempted in 60 patients (p). RA was performed with a very flexible stainless steel catheter rotated by an electric motor at a low speed of 200 rpm. After passing the obstruction, further widening was achieved by balloon angioplasty. A total of 60 occlusions (RCA = 46, LAD = 8, CX = 4, ACVB = 2) were attempted. The duration of occlusion estimated from previous myocardial infarction, sudden onset of symptoms or previous angiograms was 1 month (m) to 15 years, mean: 8.2 m. Re-opening with conventional guide wires was always tried prior to RA. If the wire passed the occlusion, p were excluded from the study except for 2, in whom the balloon could not be passed over the wire. In these 2 p, RA was performed over the long wire in place; only after a channel had been created by RA, could the balloon be introduced. In this preselected group of p, success rate was about 60%. Complications comprised 1 emergency surgery due to a dissection of the proximal left coronary artery and subsequent narrowing of the CX during an attempt to reopen the occluded LAD. In 1 p thrombotic material from the RCA was embolized distally without clinical consequences. It is concluded that in chronic coronary artery obstructions which cannot be re-opened by conventional techniques, RA is successful in about 60% and has a low complication rate.

Keywords

Coronary Artery Myocardial Infarction Success Rate Vascular Surgery Clinical Consequence 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • M. Kaltenbach
  • C. Vallbracht

There are no affiliations available

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