UV laser blasts through scar tissue to unclog arteries

Developed by Colorado Springs, Colorado-based Spectranetics Corporation, the Excimer laser blasts obstructing tissue into microscopic particles that are then absorbed into the bloodstream - restoring natural blood flow and bringing relief from pain, without the need for complex bypass surgery.

The ultra-violet light is transmitted through flexible glass fibres that are guided into place by a catheter which is advanced through the blockage.

The treatment is highly effective for patients who have developed total blockage of arteries following previous angioplasty or stent placement (a minimally invasive technique to widen narrowed arteries.)

An increase in lining tissue of the damaged artery can occur following the procedure in up to 30 per cent of cases and the Excimer laser technique helps to improve the long-term results and avoid bypass surgery.

Dr Joe Brookes, vascular radiologist and divisional clinical director for imaging and vascular services, said: ’If patients develop a scarring reaction following angioplasty or stent placement, unwanted tissue can begin to build up on the artery wall which constricts them again. Obviously this puts the patient at further risk.