Removal of thrombus from aortocoronary bypass grafts and coronary arteries using the 6Fr Hydrolyser

The American Journal of Cardiology
V van OmmenH J Wellens

Abstract

This study evaluates the feasibility and safety of a 6Fr hydrodynamic thrombectomy catheter, the Hydrolyser, in native coronary arteries and aortocoronary bypass grafts. With use of a conventional contrast injector, saline solution is injected into the narrow lumen of the catheter which makes a 180 degrees bend at the tip. The resultant high-velocity jet (150 km/hour) is directed over a sidehole near the tip into a wide exhaust lumen. As a consequence of the Venturi effect, thrombus is sucked into that sidehole, fragmented, and removed through the wide exhaust lumen into a collection bag. Thirty-one thrombotic lesions were treated in 31 patients. The culprit vessel was a venous graft in 21 patients (15 with Thrombolysis in Myocardial Infarction Trial [TIMI] grade 0 or 1 flow) and a coronary artery in 11 patients (9 with grade 0 or 1 flow). Twenty-six patients had angina New York Heart Association functional class III or IV heart failure and 5 an acute myocardial infarction. In 26 patients, Hydrolyser therapy was the primary treatment, whereas in 5 patients coronary angioplasty preceded Hydrolyser therapy. In 1 patient the Hydrolyser could not reach the lesion. Thrombus was removed in 29 of the 31 patients. Successful reperfusio...Continue Reading

References

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Citations

Nov 1, 1994·Journal of Vascular and Interventional Radiology : JVIR·D VorwerkR W Guenther
Nov 1, 1994·Journal of Vascular and Interventional Radiology : JVIR·V van OmmenH J Wellens
Aug 1, 1993·Bratislavské lekárske listy·J MurínR Uhliar
Mar 1, 1994·Catheterization and Cardiovascular Diagnosis·N TwidaleJ P Galichia
Mar 11, 1993·The New England Journal of Medicine·F ZijlstraH Suryapranata
May 1, 1996·Journal of Vascular and Interventional Radiology : JVIR·V van OmmenH J Wellens

Related Concepts

Catheterization
Entire Lumen of Body System
G2 Stage (Tumor Staging)
Myocardial Infarction
Entire Coronary Artery
Coronary Thrombosis
Angina Pectoris
Coronary Artery Bypass Surgery
Vascular Surgical Procedures
Coronary Artery

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