What Is a Bioprosthetic Valve?
Biological valve is a biological material used for the treatment of heart diseases. The status of biological valve in clinical application cannot be replaced by mechanical valve. Biological valves generally have two types: heterogeneous and homologous.
Biological valve
discuss
- Chinese name
- Biological valve
- Subject
- biological
- Used for
- Heart disease treatment
- Nature
- biomaterials
- Biological valve is a biological material used for the treatment of heart diseases. The status of biological valve in clinical application cannot be replaced by mechanical valve. Biological valves generally have two types: heterogeneous and homologous.
- Mechanical valves have insurmountable shortcomings, such as high thromboembolic rate, comorbidities related to anticoagulation, and low long-term survival. Biological valve research, as the second largest series of artificial heart valves, has never ended.
- At present, the general use of biological valves in foreign countries accounts for about 30%, and about 22% in Europe. In China in the 1980s, mechanical flaps accounted for about 70% of the shortage of mechanical flaps. However, due to some problems in quality control and the increase of cases of biological flap failures since the 1990s, mechanical flaps are still the majority.
- Artificial valves are divided into two categories according to the materials used: one is called mechanical valves made entirely of artificial materials; the other is called biological valves made entirely or partially of biological tissues.
- Classification of mechanical valves: All mechanical valves can be divided into peripheral blood flow (ball cage disc and disc cage valve) and central blood flow (inclined disc type and double leaf type) according to their blood flow patterns.
- Classification of biological valves: Biological valves can be divided into two categories, heterogeneous valves and homogeneous valves. The heterogeneous valve includes porcine aortic valve and bovine pericardial valve; the same type of valve includes fresh same type of aortic valve, autologous broad fascia valve, and same type of dura mater valve.