Cardiac wire test detects angina & occult & # 39; with a 15-minute check that can identify easily missed early warning signs
- Traditional angiograms cannot detect angina in two out of five patients
- About 250,000 agiograms are performed in Britain each year.
- Angiograms detect problems involving narrowing, arteries or blockages
- This new 15-minute test can identify the most difficult ways to detect angina.
A new routine test can help diagnose common heart problems in thousands of British patients.
The 15-minute check, in which a strand of five twisted strands is inserted into the heart through the arm, identifies a form of angina difficult to detect. The condition is a result of reduced blood flow to the heart and is an early warning sign that a patient may suffer a heart attack or stroke.
Patients with suspected angina receive a cardiac radiograph called angiogram to identify the cause and determine the best treatment.
Patients with suspected angina receive a cardiac x-ray called angiogram to identify the cause and find the best treatment.
A traditional angiogram may miss two out of five cases of angina
About 250,000 are held in the UK each year. But angiograms detect only blockages or narrowing in the large arteries that supply blood to the heart.
About two out of five patients who have an angiogram are found not to have this problem and said they have a healthy heart. But problems with the smaller arteries that supply the heart – which are too small to check on a standard angiogram – are also known to cause angina. This is known as microvascular angina.
Now researchers from the NHS Foundation Trust of Guy and St. Thomas and King's College London have identified a way to check large and small arteries on a hospital visit.
"Microvascular angina is not a simple condition to identify," says Professor Jeremy Pearson, associate medical director of the British Heart Foundation, who funded the research.
Geralmente People usually need to go through various tests for an extended period of time. This new test has the potential to accelerate the wait for symptoms for diagnosis, giving people quick access to the treatment they urgently need. & # 39;
During a standard angiogram, a dye that makes the large arteries appear on an x-ray is injected. The new microvascular angina test can be performed immediately afterwards if no major artery problems are detected.
It involves a very thin wire being inserted into the coronary artery through the arm. The wire contains a sensor that can detect changes in blood flow to the heart muscle. Patients receive a drug called adenosine, which in the healthy arteries causes dilation and increased blood flow. If this does not happen in the smallest arteries that supply the heart, this suggests a problem.
Research has also found that there are different types of microvascular angina that may respond to different treatments.