Health
Covid-19 Decoding’Happy Hypoxia’ Status in Patients-World News
Scientists have found a possible explanation for why some Covid-19 patients experience very low or otherwise life-threatening oxygen levels.
A new understanding of this condition, also known as silent hypoxemia, suggests that the patient’s unnecessary dose during the current and expected second wave of coronavirus, according to a study published in the American Journal of Respiratory and Critical Care Medicine. Prevents intubation and ventilation.
Intubation is the process of inserting a tube called the endotracheal tube (ET) into the airway through the mouth. It is done so that the patient can be placed on a ventilator to assist in breathing.
“Happy hypoxia is particularly embarrassing to doctors because it violates basic biology,” said Martin J. Tobin of the Chicago Stritch Medical School at Loyola University in the United States.
“The patient may be comfortable and using the phone while the doctor is inserting a breathing (endotracheal) tube and trying to connect the patient to the ventilator. This ventilator can save lives. But there are a series of risks,” Tobin said.
The study included 16 Covid-19 patients with very low levels of oxygen (50% compared to 95-100% normal blood oxygen saturation) without shortness of breath or dyspnea. It was.
Researchers have discovered that “some pathophysiological mechanisms are responsible for most, if not all, of silent hypoxemia.” They said this would include an initial assessment of the patient’s oxygen level with a pulse oximeter.
“Pulse oximeters are very accurate at high oxygen readings, but the severity of low levels of oxygen at low readings is greatly exaggerated,” says Tobin.
He said another factor is how the brain responds to low levels of oxygen.
“When oxygen levels drop in Covid-19 patients, the brain doesn’t respond until oxygen drops to very low levels-at which point the patient is usually short of breath,” Tobin said.
In addition, researchers said that more than half of the patients had low levels of carbon dioxide, which could reduce the effects of extremely low oxygen levels.
“It’s also possible that the coronavirus has a unique effect on how the body senses low levels of oxygen,” it may be related to the lack of odor experienced by two-thirds of Cobin-19 patients. Said Mr. Tobin.
The study concludes, “in light of established respiratory physiology principles, the features of Covid-19 that doctors find intrusive are less strange,” admitting that further research is needed. .. “This new information could help avoid unnecessary risky endotracheal intubation and ventilation when the continuous and long-awaited second wave of Covid-19 emerges,” Tobin said. Says.
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