Additional heart artery stenting reduces risk of future heart attacks

Additional heart artery stenting reduces risk of future heart attacks

Press releases may be edited for formatting or style | September 30, 2019 Cardiology
Research has shown that patients who have had emergency heart attack treatment with heart artery stenting - and have significant narrowings in their other untreated arteries - can benefit from additional stenting to help prevent future heart attacks.

A stent is a tiny mesh tube that is inserted into affected, or clogged, arteries and expands to keep them open, reducing the chance of further heart attacks by allowing the blood to flow more freely around the heart.

The results of the COMPLETE study, presented at the European Society of Cardiology meeting in Paris in September 2019 and simultaneously published in the New England Journal of Medicine, showed that patients who underwent routine additional stenting had a lower risk of further heart attacks or heart-related death, compared to those who had just usual tablet treatment for managing the untreated narrowings (7.8 per cent versus 10.5 per cent over five years). They also had less than one-fifth the risk of needing further emergency treatment for their heart arteries in the future.

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As part of the international clinical trial of over 4000 patients, additional analysis of the study has been presented at the Transcatheter Cardiovascular Therapeutics (TCT 2019) meeting in San Francisco (Saturday 28 September 2019), looking at whether timing of the second stenting procedure - either during the same hospital admission or as a later outpatient procedure - was important in achieving the beneficial effects.

Similar benefits were seen regardless of whether the second procedure was performed as an in-patient or within six weeks as an outpatient.

Over 700 UK patients took part in the UK investigations led by Rob Storey, Professor of Cardiology at the University of Sheffield and Academic Director and Honorary Consultant Cardiologist in the Cardiology and Cardiothoracic Surgery Directorate at Sheffield Teaching Hospitals NHS Foundation Trust.

Professor Storey, who was also a member of the executive team running the study, said: "We have made huge strides in the treatment of heart attack over the last 20 years with the development of new drugs and new stents continuously improving the effectiveness of heart artery stenting. For example, in Sheffield we have led the way in the development of ticagrelor, which has markedly reduced the risk of stent blockage and further heart attack, and this is now a standard treatment for heart attack around the world."

One of the questions that had remained unanswered until now was whether or not patients with significant narrowings elsewhere in their main heart arteries benefit from additional routine stenting of these narrowings immediately after they have had emergency treatment to open a blocked heart artery.

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