[High frequency rotational angioplasty].
High-speed rotational coronary atherectomy is an alternative method to treat complex, especially calcified coronary stenoses. A rotating burr tip removes the occlusive plaque tissue. The applied rotating frequency is between 160 000 to 190 000 rpm. The primary technical success-rate for high frequency rotational atherectomy alone yields between 50 to 60% on average. Associated with consecutive additional balloon angioplasty, the success rate is between 80 and 95% when treating complex type B II or C stenoses. Today, the usage of a single burr tip size with adjunctive balloon angioplasty has become a standard procedure. The occurrence of serious complications such as extensive dissections or thrombotic vessel occlusion is a rare phenomenon after high-speed rotational atherectomy compared to coronary balloon angioplasty, whereas coronary spasm is more common after high-speed rotational atherectomy. According to the actual results, high-speed rotational angioplasty did not lower the rate of long-term restenosis, compared to the results achieved by balloon angioplasty alone. The rate of long-term restenosis is reported to be between 40 to 50% after highspeed rotational angioplasty with or without adjunctive balloon angioplasty.
Haude
M
M
Abt. für Kardiologie, Universitätsklinik Essen.
Eick
B
B
Baumgart
D
D
Caspari
G
G
Ge
J
J
Liu
F
F
Görge
G
G
Erbel
R
R
D017225:Atherectomy, Coronary / Q000295:instrumentation*; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000175:diagnosis / Q000601:surgery*; D004867:Equipment Design; D006801:Humans; D011183:Postoperative Complications / Q000209:etiology*; D012008:Recurrence; D016896:Treatment Outcome; D018084:Ultrasonography, Interventional