If heart valves don’t close properly, they are replaced. Conventional treatment of venous valve failure, however, has up to now always and exclusively been via medication. In future, an implant will assume the function of damaged valves – and a new dispensing tool means these prostheses can be made using an automated process.
Researchers at NUI Galway have developed a super-sized model of a heart valve which may lead to a new generation of cardiovsacular devices.
Every year, mechanical valves are inserted into approximately 125,000 patients with heart valve disease around the world. However, the valves can lead to unnatural blood flows, which can trigger a clotting reaction. Because of this, patients with prosthetic heart valves must take medication daily, which can lead to side effects.
- What is an arrhythmia?
- How common are arrhythmias?
- What are the clinical symptoms?
- What causes arrhythmias?
- What are the consequences of arrhythmias?
- How are arrhythmias treated?
- What are heart valves and what is their function?
- What causes valve defects?
- What are the consequences and clinical symptoms of valve disease?
The Right and Left Hearts are Connected in Series, but are Folded Together to Form a Single Unit
- The right heart pumps blood only to the lungs; its output is low pressure (25 mm Hg)
- The left heart pumps blood to the rest of the body; its output is high pressure (120 mm Hg)
- Because the 2 hearts are attached they beat in synchrony
- The 2 atria receive the incoming blood- they pump extra blood into the ventricles