Living Without Breathing – Researchers Are Able To Bypass The Lungs By Using Injectable Oxygen

See on Scoop.itNov@

Researchers from the Boston Children’s Hospital managed to sustain life in rabbits with blocked tracheae through the use of oxygen-filled microparticles. They injected the particles into the blood stream of the rabbits and managed to keep them alive for almost 15 minutes without a real breath of air. Researchers say that if the novel method would be used in the emergency room, it would save countless more lives. The research team provides a new way to deliver oxygen to the bloodstream and tissues, by bypassing the lungs through the use of injectable oxygen.
Patients who are unable to breathe through their lungs, due to either lung failure or a type of obstruction, need an alternative way of getting oxygen into their bloodstream. Lack of oxygen can lead to brain injury and cardiac arrest. The research team says their new technique can delay the onset of brain injury, cardiac arrest or other tissue injuries that could be induced due to lack of oxygen.
Most of the previous techniques that were attempted in order to treat hypoxemia (an abnormally low concentration of oxygen in the blood) and cyanosis (a bluish discoloration of the skin caused by lack of oxygen in tissues) have had different success rates. Many of the previous techniques used free oxygen gas injections directly into the bloodstream. This is dangerous because the oxygen bubbles can aggregate and form gas bubbles that lead to pulmonary embolism, a lethal blockage.   The new method removes the danger of injecting free oxygen gas into the bloodstream. Once in the bloodstream, the oxygen particles mix with circulating red blood cells and the oxygen diffuses into these cells almost immediately after contact. The research team notes that their new microparticle technique is unlike any other type of artificial blood because it does not require oxygen to brought from the lungs. Dr. Kheir also added that after the oxygen dissociates from the fatty molecule, the molecule break off and can be easily reabsorbed by the organism.
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