[Coronary angioplasty with controlled longitudinal dissection. Initial clinical results using a new cutting balloon].
A recently developed cutting balloon was used for coronary angioplasty in 21 patients (4 women, 17 men; mean age 57.6 [36-81] years) with coronary heart disease (angioplasty of the right coronary artery in 4, of the circumflex branch in 4, and of the anterior interventricular branch in 13 patients). The balloon contains 3-4 longitudinally arranged metal cutters to prevent uncontrolled vessel tears. An average stenosis reduction from 84 +/- 8.6% to 30 +/- 10.6% was achieved in ten patients. In the eleven others a second dilatation with a conventional balloon was necessary because of a residual stenosis of over 50% after the first dilatation with the cutting balloon. This reduced the original stenosis from 78.6 +/- 9.4% to 30.4 +/- 9.9%. Complete occlusion at the place of previous dilatation occurred in one patient 14 hours after the procedure, due to a dissection which required a stent implantation. These preliminary results suggest that the cutting balloon can achieve a stenosis reduction similar to that with a conventional balloon.
Abteilung Kardiologie und Pulmonologie, Universität Göttingen.
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Unterberg
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Buchwald
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Barath
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Schmidt
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Kreuzer
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Wiegand
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015906:Angioplasty, Balloon, Coronary / Q000295:instrumentation / Q000379:methods*; D017023:Coronary Angiography; D005260:Female; D006801:Humans; D006937:Hypercholesterolemia / Q000150:complications; D006973:Hypertension / Q000150:complications; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D012086:Reoperation; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects; D015607:Stents
Koronarangioplastie mit kontrollierter Längsdissektion. Erste klinische Ergebnisse mit einem neuen Schneideballon.