Laser-facilitated thrombectomy: a new therapeutic option for treatment of thrombus-laden coronary lesions.
To overcome the adverse complications of balloon angioplasty in thrombus burden lesions (i.e., distal embolization, platelet activation, no-reflow phenomenon with persistent myocardial hypoxemia), mechanical removal of the thrombus or distal embolization protection devices is required. Pulsed ultraviolet excimer laser light at 308 nm can vaporize thrombus and suppress platelet aggregation. Clinical experience has already shown its efficacy in acute ischemic-thrombotic acute coronary syndromes. Unlike other thrombectomy devices, a 308 nm excimer laser can ablate thrombi as well as the underlying plaque, speed up thrombus clearing, and enhance thrombolytic and GP IIb/IIIa activity. It can also be employed in patients with contraindications for systemic thrombolytic agents or GP IIb/IIIa antagonists. Our report covers clinical data and technical aspects concerning three patients with acute myocardial infarction who presented with a large thrombus burden. After successful laser-transmitted vaporization of the thrombus mass in these patients, the remaining thrombus burden was evacuated, and normal antegrade coronary flow was successfully restored. This approach can be useful for selective patients with acute coronary syndromes.
Department of Cardiology, Ernst Moritz Arndt University Greifswald, Greifswald, Germany. dahm@mail.unigreifswald.de
Johannes B
JB
Dahm
On
O
Topaz
Christian
C
Woenckhaus
Alexander
A
Staudt
Bernhard
B
Möx
Astrid
A
Hummel
Stephan B
SB
Felix
D000368:Aged; D000789:Angina, Unstable / Q000209:etiology / Q000601:surgery*; D017023:Coronary Angiography; D003328:Coronary Thrombosis / Q000150:complications / Q000601:surgery*; D005260:Female; D006801:Humans; D053685:Laser Therapy; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000209:etiology / Q000601:surgery*; D013577:Syndrome; D017131:Thrombectomy / Q000379:methods*