A new research study revealed possible explanations for some Corona patients suffering from sudden hypoxia without the patient feeling, as patients suffer from extremely low levels of life-threatening oxygen, but there are no signs of shortness of breath and this condition is scientifically known as silent hypoxia or “Happy hypoxia“.
According to the medical site, Professor Martin J. Tobin, the lead author of the study published in the American Journal of Respiratory and Critical Care Medicine, said on the Internet: “Why is silent hypoxia of Covid 19 patients baffling doctors.”
Dr. Tobin explained: “In some cases, the patient is in good health and uses the phone even though he suffers from a lack of silent oxygen and needs a breathing tube (inside the windpipe) and connects the patient to a mechanical respirator,” which carries with him despite the possibility of saving his life his set of risks. “.
The study involved 16 patients with Covid-19 virus who had very low oxygen levels (up to 50%; normal blood oxygen saturation between 95 and 100%), without shortness of breath or shortness of breath.
And it found that “several pathological mechanisms are responsible for most, if not all, cases of silent hypoxaemia, and this includes the initial assessment of a patient’s oxygen level using a pulse oximeter.”
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“While the pulse oximeter is remarkably accurate when the oxygen readings are high, it significantly overestimates the severity of low oxygen levels when the readings are low,” Tobin said.
“The other factor is how the brain responds to low oxygen levels, with low oxygen levels in Covid 19 patients, the brain does not respond until the oxygen drops to very low levels – at this point the patient usually becomes short of breath,” he added.
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Additionally, more than half of the patients had low levels of carbon dioxide, which may reduce the effect of too low the oxygen level.
Dr Tobin said: ‘It is also possible for the Coronavirus to do a strange procedure about how the body senses low levels of oxygen which could be related to the lack of smell, which affects two thirds of patients. COVID-19“.
While recognizing the need for further research, the study concluded that “the features related to COVID-19 What clinicians find bewildering becomes less strange when viewed in light of long-established principles of respiratory physiology. “
Dr. Tobin said: “This new information may help avoid unnecessary ventilation within the trachea and mechanical ventilation, which poses risks, when the second and expected wave of Covid 19 appears.”
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