A study of the lateral wall pressure exerted by balloon-tipped catheters.
A technique was developed for assessing the lateral wall pressure exerted by balloon-tipped catheters. It was found that (1) high intraballoon pressures do not produce high lateral wall pressures in a minimally constricting lumen; (2) inflation of the balloon by partial compression of a large initial volume of air results in a much more compressible balloon and produces markedly less arterial distortion; and (3) use of the catheters inflated in this way is effective clinically. Therefore, instead of the usual technique, we recommend inflation of the embolectomy balloon by partial compression of a comparatively large initial volume of air in the syringe.
D000388:Air; D000818:Animals; D001158:Arteries / Q000293:injuries / Q000502:physiology*; D002404:Catheterization / Q000009:adverse effects / Q000295:instrumentation*; D004285:Dogs; D004617:Embolism / Q000601:surgery*; D004691:Endarterectomy / Q000295:instrumentation*; D005069:Evaluation Studies as Topic; D006801:Humans; D008722:Methods; D011312:Pressure; D013314:Stress, Mechanical