Blood transfusions have been the normal way to help people who have lost a lot of blood get more red blood cells and oxygen for decades. But there are now natural options that try to copy the benefits of blood transfusions without the risks, like incompatibility and infections. Here, we’ll talk about some exciting new options and why they should be thought about.
Blood Transfusions: A Brief History
Even though people have tried to swap animal and human blood for hundreds of years, the modern age of successful blood transfusions didn’t start until the early 1900s, when blood types and cross-matching were discovered. By the middle of the 20th century, blood banking, screening, and separating blood into its parts had made transfusions a common way for hospitals to replace blood and treat illnesses.
But there were also risks with transfusions, like getting a virus, a bacterial infection, or an acute hemolytic response. People who want to avoid these problems are interested in non-donor options that use synthetic or purified substances that mimic the way red blood cells carry oxygen without the risks.
Hemoglobin-based oxygen transporters (HBOCs)
A major alternative method uses solutions of stabilised haemoglobin proteins from people, cows, or microorganisms that have been changed genetically. These work like normal haemoglobin in that they carry oxygen. Unlike normal haemoglobin, HBOCs don’t change when they are outside of red blood cells. Instead, they stay steady and don’t get filtered out by the kidneys.
Researchers have worked to improve the purification of haemoglobin, its molecular structure, and its protection by shells. This is to avoid the problems with toxicity that plagued early forms. HBOCs now look like they might be able to quickly restore oxygenation without being limited by blood type or needing to be kept cold. There are more cases going on. If they are safe and successful, they could be used instead of or in addition to blood transfusions.
PFCs, or perfluorocarbons,
PFCs are gaseous chemicals that are made in a lab. They can carry large amounts of oxygen and carbon dioxide without diluting blood components. They are naturally stable because they don’t move. Even though the first PFCs were hopeful, they stayed in the body for too long. With newer PFCs, the substance doesn’t last as long, so it can be exhaled after use.
With better ways to speed up exhalation, PFCs could soon provide brief oxygenation during surgery or a life-threatening accident. PFCs have already been cleared for lung lavage procedures, and because they are compatible with everyone, they could replace blood transfusions.
Therapies with stem cells
Stem cell treatments are another way to make red blood cells for a specific patient without using blood donors. Researchers have been able to make red blood cells that carry oxygen by using stem cells from bone marrow. If the cell lines and growth factors are improved even more, this could soon be a source of red blood cells that can be used again and again.
Management of Blood in Patients (PBM)
Lastly, patient blood management (PBM) uses drugs, devices, and surgical methods to plan surgeries so that they don’t need as many blood transfusions. Tranexamic acid stops bleeding, and erythropoietin helps the body make more red blood cells before surgery. Cell salvage devices get the blood that was lost during surgery and put it back into the body. With PBM, infusions are only done if nothing else works.
The main point
Even though donations save lives, there are other options that have benefits like being able to be used by everyone and reducing the risk of infection. As research goes on, we get closer to having choices for blood transfusions that don’t require a donor. Until then, doctors can use PBM techniques to avoid allogeneic transfusions when they are safe to do so. Whole blood is no longer enough for the future.
When searching for natural alternatives to blood transfusion make sure you check out the my-medical-choice.org website.