bifurcation lesion

bifurcation lesion

A term for an atherosclerotic lesion of the coronary arteries at a bifurcation.

Classification of bifurcation lesions
Y-shaped lesion
The angulation between side branch and main vessel is <70º; side branch access is usually easy, but plaque shift pronounced.

T-shaped lesion
Angle between side branch and main vessel is >70º; side branch access may be difficult, but plaque shift less pronounced.
 
Type 1–4 lesions
Type 1—True bifurcation lesion involving main vessel, proximal and distal to the side branch, and the ostium of the side branch.

Type 2—Bifurcation lesion involving main vessel proximal and distal to the side branch, but no involvement of side branch ostium.

Type 3—Bifurcation lesion involving main vessel proximal, but not distal to the side branch and without involvement of side branch ostium.
 
Type 4—Bifurcation lesion involving the distal main vessel and the ostium of the side branch.
      4a—Bifurcation lesion involving main vessel distal, but not proximal to the side branch and without involvement of side branch ostium.
      4b—Bifurcation lesion involving the side branch ostium only.
References in periodicals archive ?
The study involved 178 consecutive patients who underwent percutaneous coronary intervention for a de novo bifurcation lesion treated with a Genous Stent and 465 consecutive patients treated with BMS.
In patients undergoing PCI-stenting, approximately one third have a bifurcation lesion.
In patients undergoing PCI-stenting, approximately one-third have a bifurcation lesion.
Data on side branch restenosis within the bifurcation lesion also showed similarly encouraging results -- reducing those complications from between 11.
A recent survey carried out on behalf of Cappella Medical and published in the May/June edition of Coronary Heart magazine, invited clinicians across Europe to share their views on the challenges and opportunities for improvement in the treatment of bifurcation lesion treatment (BLT).
The BioMatrix family features workhorse stent platforms for a broad range of lesions, and Axxess employs a self-expanding stent platform specifically designed for treating bifurcation lesions.
The competitive landscape consists of large, mid-size, and small companies that have developed different types of coronary stents to target various coronary indications, such as de novo lesions, AMI, STEMI, SVD, and bifurcation lesions.
Randomized study to evaluate sirolimus-eluting stents implanted at coronary bifurcation lesions.
Summary: Al Qasimi Hospital conducted on Thursday surgeries on two patients suffering from ischemic heart disease and bifurcation lesions in contrary artery disease using a special technique of Stenting Drugs Eluting Stent (DES) for the first time outside Europe.
Stenting coronary bifurcation lesions remains a challenge in current clinical practice.
has introduced Europe to its new cobalt chromium stent system for bifurcation lesions.