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Homechevron_rightTechnologychevron_rightSurgical masks good...

Surgical masks good for most COVID-19 treatment: Study

Surgical masks good for most COVID-19 treatment: Study

Toronto: The N95 respirator masks, which is claimed to prevent people from inhaling at least 95 percent of very small airborne particles, should be preserved for health-care workers involved in inserting breathing tubes for patients with COVID-19, according to a study.

The research, published in the journal Influenza and Other Respiratory Viruses, noted that more common medical masks are fine for all other COVID-19 treatment.

In the study, scientists, including those from McMaster University in Canada, conducted a systematic review of four clinical trials on masks done between 1990 and last month.

While their analysis showed that the use of medical masks did not increase viral respiratory infection, or clinical respiratory illness, they said N95 respirators, designed to fit tight and prevent inhalation of small airborne particles, are best for clinicians and healthcare workers carrying out bronchoscopy on patients.

These are medical procedures when health-care professionals must insert a tube through a patient's throat, the scientists explained.

"There is not convincing evidence that the loose-fitting medical masks are inferior to N95 respirators in protecting healthcare workers against viral respiratory infections during routine care during the pandemic," said Mark Loeb, a professor of pathology and molecular medicine from McMaster University.

"But the N95 respirators are unanimously recommended by national and international guidelines for aerosol generating procedures," Loeb said.

The researchers believe that this is an important distinction at a time when there is a serous concern about a shortage of N95 respirators because of COVID-19 with conflicting recommendations on the use of the these masks.

While the US Centers for Disease Control and Prevention and the European Centre for Disease and Prevention preferentially recommend the N95 respirator for routine care of patients with COVID-19, the World Health Organization (WHO) and Canadian Public Health Agency recommend medical masks.

"Although COVID-19 transmission is not fully understood, it's believed to be mainly through respiratory droplets, and the medical masks provide barrier protection for that, and prevent hand to face contact," the scientists explained. According to Jessica Bartoszko, first author of the current study, the findings support the relative effectiveness of medical masks compared to N95 respirators in routine care.

Bartoszko believes the findings might help preserve stockpiles of N95 respirators for high-risk, aerosol generating procedures.

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News Summary - Surgical masks good for most COVID-19 treatment: Study
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