Medicine

Health - Treatments
By: - at June 26, 2013

Bloodless Surgery – An Effective Alternative to Blood Transfusion

Blood transfusionBlood transfusions have saved a lot of people in the past. However, the new era has introduced the world with an alternative – the bloodless surgery. The idea of bloodless surgery started when a religious organization, called Jehovah’s Witnesses, insisted that they would not accept blood transfusion. Since 1960, medical staffs have respected the stand of Witnesses regarding blood transfusion and therefore started building bloodless surgery centers to areas where there is a big population of Witnesses who needed surgery without the use of blood. Because this alternative has proved to be more beneficial to health comparing to blood transfusions, other patients who are not Jehovah’s Witnesses started requesting for surgery without blood. Slowly, this procedure became popular in a lot of areas around the world.

What are the risks of blood transfusion?
For most people, blood transfusion is a life-saver. However, this process has risks that can even threaten an individual’s life. Although modern technology has enabled hospitals to check and screen blood samples a lot of times before injecting it to a patient, there is always a risk of having infections. Today, transfusion reactions are the common negative effects of blood transfusion to patients. Transfusion reactions include allergic reaction, febrile reaction, transfusion-related acute lung injury (TRALI), acute immune hemolytic reaction, delayed hemolytic reaction, as well as graft-versus-host disease.

What are the advantages of bloodless surgery?
Surgery surgeonsA lot of people not only request for bloodless surgery due to religious reasons. This surgical procedure has attracted both medical staffs and patients and made most of them skeptical about it. However, there is a lot of good feedback regarding this procedure. Below are the advantages of bloodless surgery.

  • Safety - As mentioned earlier, there are a lot of risks brought by blood transfusion. Aside from contracting blood borne diseases such as Hepatitis and AIDS, blood transfusion is also prone to reactions due to human errors that cause mistransfusion – transfusing incompatible blood type. There is also shortage of blood supply in some countries. Some blood types are sometimes not readily available and the demand for blood is continuously increasing.
     
  • Economy-friendly - Some patients do not realize that the cost of blood transfusion can be up to $500 each. Although blood is free, it needs to be packaged, stored and transported. This process can cost up to $1,000 for just one patient. After the blood transfusion, the patient still needs to pay a separate fee to treat the complications that may occur as well as the additional days he or she needs to stay in the hospital. As a result, patients who do not have money to pay for an expensive blood transfusion are being sent to bloodless surgery centers.
     
  • Faster Recovery - Patients who have bloodless surgery recover faster and leave the hospital earlier compared to patients who had blood transfusion. Aside from that, the risks and complications of bloodless surgery are lower than surgeries that use blood.

The Process of Bloodless Surgery

  1. First, the patient needs to undergo evaluation for the doctors to check if he or she has experienced clotting problems or unexpected bleeding after undergoing medical procedures in the past.
     
  2. The patient’s hemoglobin level will be checked. If the patient’s hemoglobin is too low to undergo the bloodless surgery, he or she will be given medications.

Blood type drops

Doctors also reduce the number of blood tests administered to the patient. When the doctors decide that the patient is ready for bloodless surgery, he or she may undergo to different stages of surgery. These stages require that the patient would be injected with general anesthesia. Below are the other methods for patients who choose elective bloodless surgery.

  • Hypotension - This procedure is done by altering the patient’s arterial pressure. The doctors would lower the blood pressure to reduce blood loss during the surgery. This procedure is only available for patients who do not have coronary artery disease. Also, surgeries that need tissue grafting cannot use this method.
     
  • Hemodilution - This method requires that a big percentage of the patient’s blood be withdrawn from the body. The patient’s own blood would be stored temporarily. Colloid or crystalloid solutions will be used as replacement for the volume of blood withdrawn from the patient’s body. The patient will therefore have lesser red blood cells to lose without using other people’s blood. After the operation, the patient’s blood will be reinfused.
     
  • Blood Salvage - Also known as autotransfusion, blood salvage uses an automated recovery system during the surgery. This technology collects the patient’s blood and transfers it to a cell separation device. This device works by sorting the different components of blood and then cleaning them. The blood components are then concentrated before reinfusing them to the patient. This method can be used to patients without active infections and malignant tumors.

Surgical Instruments and Techniques Used for Bloodless Surgery

Medical instruments steel trayDuring the surgery, surgeons monitor the patient’s body temperature to keep it from dropping below normal. Studies have shown that patients who have lower body temperature lose more blood. The anesthesiologist will also administer a hypotensive anesthesia. This type of anesthesia will lower and maintain the blood pressure of the patient. For bloodless surgery to be successful, doctors use some specialized instruments to avoid too much bleeding.

  • Pulse Oximeter - During surgery, the patient’s blood oxygen levels will be monitored using this instrument. This device does not require the doctors to draw blood from the patient for testing. It is simply clipped on the patient’s finger or toe to estimate the amount of oxygen carried by the hemoglobin.
     
  • Volume Expanders - This blood substitute (non-blood fluid) is used by doctors to enhance blood circulation.
     
  • Harmonic Scalpel - This innovative scalpel is used to lessen the amount of bleeding. The doctors would use it to cut through the patient and seal the vessels at the same time to avoid further bleeding.
     
  • Laser - This is an alternative instrument to scalpels. Laser surgery uses light to cut off the patient’s tissues and cauterize the blood vessels at the same time.
     
  • Cell Saver - This device is used to perform autotransfusion or blood salvage.

Blood types

Today, after five decades after starting to study this alternative, more physicians have realized that blood transfusion has more unnecessary risks than bloodless surgery. Because an increasing number of people around the world is requesting for this procedure both for safety and religious reasons, medical industries are practicing more effective techniques to bloodless surgery especially for complicated procedures such as bloodless lung transplant. Some doctors still cannot understand and accept this “unconventional” method and would not agree to let a patient undergo a dangerous procedure. Still, some doctors are arguing that the surgery would be easier if the patient would only agree to have blood transfusion.


 

 

 

 

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