A historical overview of hemostatic agent development through the centuries

Hemostasis means stopping blood after an injury. Surgeons use hemostatic agents to close wounds and stop bleeding. Platelet plugs and fibrin clots help with hemostasis. More surgeries happen around the world each year. There are 312 million major surgeries every year. It is very important to reduce blood loss during surgery.

The history of hemostatic agent development affects surgery today. Scientists keep looking for better ways to help with blood loss. Medicine keeps changing as new ideas are found.

Early Hemostatic Agents

Ancient Natural Remedies

People have tried to stop bleeding with natural remedies for a long time. Long ago, Egyptians and Greeks wrote about using herbs, animal skins, and minerals for wounds. The Egyptian medical papyri talk about many herbal cures and surgeries. Greek doctors got good at using natural remedies. They thought nature could heal the body. In their culture, blood meant life. This belief helped them pick hemostatic agents.

Eight out of 59 old remedies for wounds and sprains are still used today. This shows they are still helpful.

Plants like camellia and greater plantain were used for animal wounds.

Herbal remedies like opium poppy and mandrake were common for bleeding.

Early Surgical Techniques

As people learned more, ancient doctors mixed natural remedies with surgery. Hippocrates and others used both herbs and new surgery ideas to help patients. Stories from the Trojan War say doctors used plants and surgery for wounds. Ancient Egyptians did amputations and brain surgeries. They used tools that still inspire doctors today.

Key Advances in Hemostatic Agent Development

Fibrin Sealants (1909)

The early 1900s was an important time for hemostatic agents. In 1909, scientists started using fibrin in new ways to stop bleeding during surgery. Bergel was the first to use fibrin powder in surgery. Grey and Harvey also tried using fibrin tampons and thin fibrin plaques. These new ideas helped doctors control blood loss.

Doctors saw that fibrin sealants helped wounds heal faster. Bergel was the first to show that fibrin emulsion could help wounds heal. Over time, scientists made fibrin sealants safer and better. These agents became useful for many types of surgery.

Clinical trials showed that fibrin sealants helped patients leave the hospital sooner after thyroid and parathyroid surgery. Patel and his team found that patients stayed in the hospital for less time (p = 0.022 for thyroidectomy, p = 0.033 for parathyroidectomy). Fibrin sealants also lowered the amount of fluid drained and made seroma less likely by 38%. These results showed that fibrin sealants made surgery safer for patients.

Fibrin sealants became a regular part of surgery. They helped doctors stop bleeding and avoid problems. Fibrin sealants also led to the creation of new hemostatic agents later on.

Oxidized Cellulose and Surgicel

Oxidized cellulose was introduced in 1942, and Surgicel came out in 1960. These products gave doctors more ways to stop bleeding in surgery. Frantz made oxidized cellulose, which worked well when other methods failed. In 1960, Surgicel helped doctors control bleeding from small blood vessels. These agents became important tools for surgeons.

Doctors used oxidized cellulose and Surgicel in many surgeries, like brain and bone operations. These agents helped patients do better and have fewer problems from blood loss. They worked by starting the clotting process right where they were used.

But these agents have some problems. They do not work as well for people with clotting disorders. They can also cause infections. Scientists are still studying these agents to make them safer and better.

Modern Synthetic and Biomimetic Agents

Material science and bioengineering have changed how hemostatic agents are made. Scientists now use new ways to make these agents faster and cheaper. They try to protect the environment by using green chemistry. New hemostatic materials copy how the body stops bleeding.

Smart bioactive materials act like platelets and fibrin.

Modern agents last longer and are easy to carry.

These agents are cheap and can be made in large amounts.

They are safer because they work with the body's own systems.

New designs fix problems with older blood products. Better planning helps doctors treat bleeding right away. Studies show that new materials can stop bleeding much faster. For example, a 2%PAN-10%exben-5%CaCl2 mat stops bleeding in 105 seconds, which is much faster than cotton or gauze.

Biomimetic agents, like autologous platelet concentrates (APCs), give new benefits. These agents help heal wounds and grow new tissue because they have growth factors. APCs come from the patient's own blood, so there is less risk of infection or immune problems. Doctors use these agents for gum treatments and dental implants. But doctors need special training to make APCs, and they do not always work the same for everyone.

There are still some problems. There are no standard rules for making or using APCs. This means results can be different in each study. Older hemostatic agents work well but do not help new tissue grow.

More surgeries now use topical hemostatic agents. In 2000, 28.5% of patients got these agents. By 2010, this number went up to 35.2%. Now, more than one-third of surgery patients get topical hemostatic agents, even in low-risk surgeries.

Doctors have seen better results with new hemostatic agents. Surgeries with passive agents had less blood loss, shorter surgery times, and fewer deaths. Combination agents caused more blood loss and longer ICU stays.

Rules from the FDA and European Medicines Agency affect how new agents are approved. The FDA's eSTAR De Novo program needs electronic files and more paperwork. European MDR rules need more follow-up and checks. These rules can slow down how fast new agents reach hospitals.

The 1900s had many new hemostatic agents. Collagen-based products, like Avitene, helped in small surgeries. Fibrin sealants got better slowly over time. Gelatin-based and oxidized cellulose products changed little and are not as good as newer agents.

Scientists are still working to make hemostatic agents safer and easier to use. New agents will help doctors control bleeding and take better care of patients in the future.

The history of hemostatic agents has many important steps. People first used natural materials. Later, doctors made advanced surgical tools. The table below shows some big changes:

New hemostatic technology helps patients lose less blood. It also helps them heal faster after surgery. Scientists are still studying absorbable materials like collagen and platelet-rich plasma. The hemostatic market is getting bigger as more people need surgery. New products are being made all the time. Researchers want to make surgery safer and better for everyone. There are still problems with stopping bleeding. Doctors and scientists must keep working to solve these problems.

FAQ

What is a hemostatic agent?

A hemostatic agent is used to stop bleeding. Doctors use these agents during surgery. They help control blood loss and keep patients safe.

Why do surgical teams use hemostatic agents?

Surgical teams use these agents to make bleeding less. This helps doctors see what they are doing. It also lowers the chance of problems.

How have hemostatic agents changed surgical care?

Hemostatic agents have made surgery safer for patients. They let doctors stop bleeding fast. This means patients do better after surgery.