Dexamethasone: its use, action, and what Recovery Trial found



After UK drug study, WHO to update treatment guidelines

The World Health Organization (WHO) said it was on the verge of revising its guidelines for the treatment of people who were beaten by Covid-19 to show the results of a clinical trial that showed that cheap, standard steroids could help save critically ill patients. Test results announced on Tuesday revealed dexamethasone, which has been used since the 1960's dermatology for arthritis, reduced the death toll by about a third among Covid-19 critically ill patients admitted to the hospital.

WHO's clinical guide in the treatment of patients infected with the new coronavirus is aimed at doctors and other medical professionals and is looking to use the latest data to inform doctors how to cope with all stages of the disease, from diagnosis and treatment. Although the results of the dexamethasone study were the first, researchers supporting the project said it suggested that the drug should be standardized care for patients with severe disabilities.

In patients who are ventilated, treatment has been shown to reduce stroke by about one-third, and in patients who require only oxygen, death was eliminated by about one-fifth, according to a preliminary report shared with the WHO. Benefit was only seen in patients with undwithCovid19 and was not observed in patients with pain. The good news comes when coronavirus infection is accelerating in some areas including the United States and when Beijing canceled many flights to help facilitate a new outbreak in the Chinese capital.

Dexamethasone: its use, action, and what Recovery Trial found
A low cost,widely used steroid, dexamethasone,has become the subject of discussion after researchers from the Recovery Trial reported that it helps reduce death rates in certain Covid-19 patients.

What is dexamethasone?
It is an anti-inflammatory drug, which often cures cases where the immune system is malfunctioning, and causes inflammation and tissue damage. Dexamethasone reduces the production of inflammatory chemicals and reduces the function of the immune system by affecting how white blood cells work. Dexamethasone falls into a category called corticosteroids, which mimic cortisol, a hormone naturally produced by the adrenal gland in humans.

It is often used in the treatment of rheuma in logical conditions of inflammation: muscular swelling, inflammation of the blood vessels, chronic arthritis, and lupus. It is used in lung diseases, kidney inflammation and eye inflammation as well as to reduce the efficiency associated with motor brain and spinal cord disorders. In patients with cancer, it is used to treat nausea and chemotherapy-induced vomiting.

How useful is it in Covid-19 treatment?
There is no specific proven treatment for Covid-19 yet. Patients are being administered different drugs that are approved for treating for other diseases. During the SARS outbreak in 2003, corticosteroid therapy was used to reduce inflammatory-induced lung injury. In Covid-19, too many countries are investigating the effectiveness of cortico steroid therapy on patients with an acute respiratory infection. Also, the World Health Organization (WHO) has prioritized the evaluation of corticosteroids in clinical trials to assess safety and efficacy.

In interim guidelines on Covid-19 treatment released on May 27, the WHO has recommended against the routine of systematic corticosteroid” for treatment of viral pneumonia. It said a systematic review and meta-analysis of the impact of corticosteroid therapy on persons with SARS-CoV-2,SARS-CoV and MERS-CoV revealed corticosteroids did not significantly reduce the risk of death, did not reduce hospitalization duration, ICU admission rate and/or use of mechanical ventilation, and had several adverse effects.

So, what has newly been reported?
The Return Test in the UK has an arm investigating dexamethasone. Oxford researchers this week announced the results of the dexamethasone trial, in which 2,104 enrolled patients were given 6mg of the drug for 10 days. The drug was found to reduce one-third of deaths in ventilated patients and by one-fifth of patients receiving oxygen only. "According to these results, 1 (one) death will be prevented by the treatment of eight patients, or in 25 patients who need oxygen only," the university said. We said the drug was found to reduce the 28-day mortality rate by 17 percent, which is a “very important” tendency for patients who need less air.

How significant are these findings?
First, the study found no evidence that it was beneficial for patients who did not need oxygen. A professor of Developmental Disease at the Nuffield Department of Medicine, Oxford University, agreed that the survival benefit is clear and is only great for patients who are sick enough to need oxygen therapy. Also, the case did not read to patients without hospital repairs. Therefore, this drug is not recommended for most mild patients.

Does India use corticosteroid therapy?
Yes. The Covid-19 administration protocol issued by the Department of Health allows the use of corticosteroid methyl prednisolone. In severe cases, the rule is: "Consider IV methylprednisolone 0.5 to 1 mg / kg for 3 days (preferably within 48 hours of admission or if the demand for oxygen increases and symptoms of inflammation increase)". And in larger cases: In patients with progressive deterioration of oxygenation, increased cognitive function and excessive inflammatory response, glucocorticoids may be used for short periods of time (3 to 5 days). / day.

What are the side effects?
The Department of Health's agreement states that high doses of glucocorticoid will delay coronavirus removal due to immune effects. On May 25, The Lancet published a letter saying that "improper use of the steroid system may increase the risk of osteonecrosis of the woman's head (ONFH)". Osteonecrosis means death of bone tissue due to lack of blood. Also, the WHO states that "if there is a reduction in lack of efficacy and potential harm", regular corticosteroids should be avoided unless they are indicated for another reason. "Other causes may include asthma or COPD, septic shock or ARDS, and risk / benefit analysis should be performed on individual patients."


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