Day: January 20, 2022

Categories : COVID HospitalsTags :

Little COVID Viral Contamination Risk in Hospital Rooms

On By ModernMedia
Source: Martha Dominguez de Gouveia on Unsplash

A study found that hospital rooms where COVID patients were treated had little to no active virus contaminations on surfaces. The finding, published in Clinical Infectious Diseases, concluded that contaminated surfaces in the hospital environment are unlikely to be a source of indirect transmission of the virus, contrary to earlier views.

“Early on in the pandemic, there were studies that found that SARS-CoV-2 could be detected on surfaces for many days,” said the study’s senior author, Professor Deverick Anderson. “But this doesn’t mean the virus is viable. We found there is almost no live, infectious virus on the surfaces we tested.”

The researchers tested a variety of surfaces in the hospital rooms of 20 COVID patients at Duke University Hospital over several days of hospitalisation, including on days 1, 3, 6, 10 and 14.

Samples were collected from the patients’ bedrail, sink, medical prep area, room computer and exit door handle. A final sample was collected at the nursing station computer outside the patient room.

PCR testing found that 19 of 347 samples gathered were positive for the virus, including nine from bedrails, four from sinks, four from room computers, one from the medical prep area and one from the exit door handle. All nursing station computer samples were negative.

Of the 19 positive samples, most (16) were from the first or third day of hospitalisation.

All 19 positive samples were screened for infectious virus via cell culture with only one sample, obtained on day three from the bedrails of a symptomatic patient with diarrhoea and a fever, demonstrating the potential to be infectious.

“While hospital rooms are routinely cleaned, we know that there is no such thing as a sterile environment,” Prof Anderson said. “The question is whether small amounts of viral particles detected on surfaces are capable of causing infections. Our study shows that this is not a high-risk mode of transmission.”

Prof Anderson said the findings reinforce the understanding that SARS-CoV-2 primarily spreads through person-to-person encounters via respiratory droplets in the air. He noted that people should concentrate on known anti-infection strategies such as masking and socially distancing to mitigate exposures to airborne particles.

Source: Duke University

Categories : HospitalsTags :

Standard Saline as Effective as Specialised Intravenous Fluids in ICU

On By ModernMedia
Photo by Anna Shvets on Pexels

New research on intravenous fluids used in intensive care shows that commonly used saline is as effective at keeping people alive and their organs functioning as more expensive balanced solutions.

The results not only provide doctors with greater certainty about the safety and benefits of saline solution, but also have broader implications for treatment availability and costs around the world.

“Just about every patient admitted to the Intensive Care Unit (ICU) will receive intravenous fluids for resuscitation or as part of standard treatment,” said Professor Simon Finfer AO, an ICU physician and senior researcher at The George Institute.

“However, the best choice of fluid has been a longstanding issue of debate as some fluids were approved and licensed for use based on trials in small numbers of patients looking only at short term outcomes.”

Plasma-Lyte 148® is a type of intravenous fluid that more closely matches the body’s normal levels of certain minerals, known as balanced multi-electrolyte solutions, or BMES. Use of BMES has risen since concerns were raised about increased rates of kidney injury and death associated with saline, although this had not been proven in clinical trials.

To address this issue, the Plasma-Lyte 148® versUs Saline (PLUS) study recruited over 5000 patients across 53 sites in Australia and New Zealand.

Participants were adult patients admitted to ICUs in need of intravenous fluid resuscitation for their underlying medical condition. The patients were followed for a period of 90 days after treatment as previous research had shown around one in four would be at risk of dying within this timeframe.

At 90 days after the treatment, the same number of patients who had received BMES or saline had died.

Other outcomes including days of mechanical ventilation, kidney dialysis, patient survival time in the ICU and in hospital, as well as major measures of healthcare costs were similar between the groups.

“We found no evidence that using a balanced multi-electrolyte solution in the ICU, compared to saline, reduced risk of death or acute kidney injury in critically ill adults,” said Prof Finfer.

ICU is one of the most expensive aspects of healthcare and ICU resources are in high demand. Even a small difference in outcomes may result in important clinical and economic effects at the population level.

In the early 1990s, up to one in seven people were dying in ICUs across Australia and New Zealand, prompting George Institute researchers to start investigating intravenous fluid resuscitation – one of the most commonly used treatments in intensive care settings.

This started a program of fluid resuscitation research conducted in ICUs that no-one previously thought possible which has resulted in major changes to clinical treatment guidelines worldwide, preventing harmful practices and saving many lives.

The results from this study were published in the New England Journal of Medicine.

Source: EurekAlert!

Categories : Mental HealthTags :

Suicidal Ideation in Adolescents Linked to Risky Driving

On By ModernMedia
Photo by Why Keu on Unsplash

Suicide and motor vehicle traffic accidents are two of the most common forms of death among adolescents. A new study published in JAMA Pediatrics found that adolescents who reported at least one suicide attempt within the last year, compared to those reporting no attempts, were also more likely to report infrequent seat belt use and driving with a drunk driver. There were also over twice as likely to report driving drunk.

The researchers analysed data from over 13 500 U.S. high school students who participated in the 2019 Youth Risk Behavior Survey, and found that 19% of the sample reported suicidal ideation. Texting or e-mailing while driving was the most commonly reported form of risky driving behaviours.

Study lead author Kyle T. Ganson, PhD, assistant professor at the University of Toronto, said: “The findings from this study emphasise the need for mental health support for adolescents experiencing suicidality as a means of increasing safety for themselves and their communities, as accidental injury deaths via car accidents were the leading cause of death among adolescents in 2019.”

“The more severe the suicidality, the stronger the association with risky driving behaviours,” Dr Ganson continued. “Adolescents who reported a suicide injury, such as a poisoning or overdose needing to be treated by a medical professional, had the highest likelihood to report all four risky driving behaviors we examined.”

The researchers stress the importance of the implications their findings have to protect the health and well-being of adolescents. “Health care professionals should consider discussing risky driving behaviours with teens who report suicidality,” said co-author Jason M. Nagata, MD, MSc, assistant professor at the University of California, San Francisco.

Source: News-Medical.Net

Categories : COVID Expert OpinionTags :

SA Scientists Criticise Developed Nations’ ‘Scepticism’ over Omicron

On By ModernMedia
Image by Quicknews

South African scientists have criticised developed nations for ignoring early evidence that Omicron was “dramatically” milder than the previous strains of the coronavirus, an attitude which could be construed as “racism”.

“It seems like high-income countries are much more able to absorb bad news that comes from countries like South Africa,” said Prof Shabir Madhi, vaccinologist at Wits University.

“When we’re providing good news, all of a sudden there’s a whole lot of scepticism. I would call that racism.”

Prof Salim Karim, former head of the South African government’s COVID advisory committee and vice-president of the International Science Council concurs.

“We need to learn from each other. Our research is rigorous. Everyone was expecting the worst and when they weren’t seeing it, they were questioning whether our observations were sufficiently scientifically rigorous,” he said, though he acknowledged that Omicron’s high number of mutations may have led to an overabundance of caution.

But by early December, anecdotal evidence was already indicating that Omicron caused far fewer hospitalisations than the Delta Wave, despite being more transmissible.

“The predictions we made at the start of December still hold. Omicron was less severe. Dramatically. The virus is evolving to adapt to the human host, to become like a seasonal virus,” said Prof Marta Nunes, senior researcher at the Vaccines and Infectious Diseases Analytics department at Wits

“It didn’t take even two weeks before the first evidence started coming out that this is a much milder condition. And when we shared that with the world there was some scepticism,” Prof Karim added.

While some have argued that Africa’s pandemic experience is different due to factors such as its younger population, any advantage South Africa has is outweighed by poor health, with excess deaths during COVID at 480 per 100 000, one of the highest in the world. Prof Madhi points out a high prevalence of comorbidities such as obesity and HIV.

A majority of those excess deaths are probably due to the pandemic, many SA scientists believe. Half occurred during the Delta wave, but only 3% transpired during the Omicron wave so far, Prof Madhi pointed out.

The government chose not to tighten restrictions during the fourth wave, and criticised the reimposition of travel bans coming from South Africa. South African scientists have mostly welcomed this, even though the WHO continues to warn that Omicron should not be considered “mild”.

“We believe the virus is not going to be eradicated from the human population. We must now learn how to live with this virus and it will learn how to live with us,” said Prof Nunes.

The low death rate from Omicron indicates a different phase of the pandemic. “I’d refer to it as a convalescent phase,” said Prof Madhi. The government has already effectively stopped quarantining and contact tracing.

Source: BBC News