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Scientists Create Bio-absorbable Implant to Seal Hole in Heart
BioSTAR, as the new device is called, take the shape of biological umbrellas when implanted to fix the hole. The authorities have approved it for use in the UK.
The implant mends the common defects that increase the chance of having a stroke, and eventually gets absorbed by the body and replaced by the patient's own tissue.
A condition wherein a patient is born with a hole between the right and left atrium of the heart is known as patent foramen ovale (PFO) in scientific language. The hole can allow unfiltered blood and fat particles to pass into the arteries and cause blockages. It can also affect blood supply to the brain, causing debilitating migraines and possibly strokes.
Up to 1,000 PFOs are treated every year in the UK. Heart surgeons believe that by making the operation quicker and less invasive they can help more people.
During the trials, the new bio-absorbable implant effectively sealed holes in more than 50 patients without causing any side effects. Most of the holes were closed within 30 days.
Doctors feed the implant through a catheter in the leg and up to the heart to cover the hole. It is supported by a scaffold of highly purified and very strong collagen, which unfolds either side of the septum like a pair of small umbrellas.
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