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A new method of badessing irregular heartbeat has outperformed the approach commonly used by stroke treatment units to detect cases of atrial fibrillation.
The technology, called electrocardiomatrice, goes further than standard cardiac telemetry by examining large amounts of telemetry data in such a detailed manner that it is difficult for a clinician to attempt the experiment.
Co-inventor Jimo Borjigin, Ph.D., recently released the latest results from its electrocardiomatrice technology Stroke. Among stroke patients with usable data (260 out of 265), the electrocardiomatrice was very accurate in identifying those with Afib.
"We validated the use of our technology in a clinical setting." Finding the electrocardiomatrix was an accurate method to determine if a stroke survivor had an Afib, "said Borjigin, badociate professor of neurology. and molecular and integrative physiology at Michigan Medicine.
A crucial metric
After a stroke, neurologists are tasked with identifying the risk factors that may have helped to do everything possible to prevent another event.
This makes detection of irregular heartbeats an urgent concern for these patients, says lead author Devin Brown, MD, a professor of neurology and neurologist at Michigan Medicine.
"Atrial fibrillation is a very important and modifiable risk factor for stroke," Brown said.
Importantly, the electrocardiographic identification method was very accurate for the 212 patients who had no history of atrial fibrillation, says Borjigin. She says this group is the most clinically relevant, because of the importance of determining whether patients with stroke have already been detected with afic fibrosis.
When a patient is afflicted with atrial fibrillation, his irregular heartbeat may cause a build up of blood in his heart, which can form a clot causing a stroke. Many anticoagulants are on the market today, making it easier for clinicians to find anticoagulant therapy for their patients, according to the way they are used.
The most important part is to determine the presence of Afib in the first place.
Essential improvement
Brown says that the detection of intermittent atrial fibrillation during hospitalization as a result of stroke continues to be problematic.
"A more accurate identification of atrial fibrillation should result in a greater number of strokes," she says.
Once hospitalized in the ACV unit, patients are usually subjected to continuous monitoring of the heart's rhythm. Neurologists specializing in stroke want to detect a possible intermittent atrial fibrillation that initial monitoring, such as an electrocardiogram or ECG, would have missed.
Since a doctor can not reasonably examine each heartbeat, current monitoring technology reports heart rates that are too high, says Brown. The neurologist then examines these reported events, which, according to the researchers, could lead to occurrences of atrial fibrillation or false positives in patients with different heart rhythm problems.
In contrast, the Borjigin electrocardiograph converts the two-dimensional signals of the ECG into a three-dimensional thermal map allowing a rapid inspection of all collected heartbeats. According to Borjigin, this method allows rapid, accurate and intuitive detection of cardiac arrhythmias. It also minimizes the detection of false positives and false negatives of arrhythmias.
"We initially noted five false positives and five false negatives in the study," said Borjigin, "but an expert actually concluded that the electrocardiomatrix was correct instead of the clinical documentation to which we were comparing. "
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The Borjigin laboratory has also recently demonstrated the utility of the electrocardiomatrice in differentiating atrial flutter and atrial fibrillation. In addition, the laboratory demonstrated the ability of the electrocardiom to capture reduced variability in heart rate in intensive care patients.
Borjigin says that she envisions that electrocardiomatrix technology will one day be used to help detect all cardiac arrhythmias online or offline and side by side with the use of the ECG.
"I think that sooner or later, the electrocardiomatrix will be used in clinical practice for the benefit of patients," she said.
Disclosure: Borjigin is the co-inventor of the electrocardiomatrice, for which she holds a patent in Japan (6348226); and for which the regents of the University of Michigan hold the patent in the United States (9918651).
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