Tag Archives: ‘Sickest’

Anatomy of an ICU: Why it’s so hard for Manitoba to add ICU beds for the sickest COVID-19 patients

In the first seven months of the pandemic, the number of Manitoba patients infected with COVID-19 admitted to intensive care units never crept into the double digits. For weeks at a time, not a single patient with the illness caused by the novel coronavirus occupied an ICU bed.

Beginning in late October, however, that number began a rapid rise, quadrupling to more than 40 patients in less than four weeks.

Health-care workers warned that the units caring for patients with the most severe illnesses would be overwhelmed. If hospitals couldn’t find more space, they feared they could soon face heartbreaking choices about who would get care and who would not.

In early November, the province rolled out a three-phase plan that would more than double the number of ICU beds, from 72 to 173, if needed.

Adding those beds requires more than simply making space to put the patients, according to critical-care physicians and health-care officials who spoke with CBC News.

Behind each COVID-19 patient in an intensive care unit stands a team providing round-the-clock care, with a pile of specialized equipment.

The number of beds open to intensive care patients in Manitoba has increased to more than 100, and COVID-19 patients regularly make up roughly half of the patient population in those units.

“To staff these additional beds … we are relying on staff and physicians who normally work in other areas to support these high-demand areas,” Manitoba Shared Health Chief Nursing Officer Lanette Siragusa said at a Nov. 18 news conference.

The plan involves creating teams, led by nurses, that include a wide range of health-care workers, many of whom may never have worked in an ICU before. 

Other provinces and countries have increased ICU capacity using mobile units, but these are typically staffed by workers trained for those environments, said the president of the Canadian Federation of Nurses Unions.

“What Manitoba is suggesting is something we’ve never seen before,” said Linda Silas.

[Redeployed workers are] going to freak out. They’re going to be scared, going to an ICU.– Patricia Tamlin, ICU nurse in Toronto

For the health-care professionals pulled into working in an ICU for a first time, the experience could come as a shock, said Patricia Tamlin, an ICU nurse in Toronto with 40 years of experience.

“It’s overwhelming. It’s noisy. It’s loud,” said Tamlin. “It can be fast-paced. You’re in PPE that is very different. They may be assigned a ventilated patient — they’ve maybe never seen a person on a ventilator.”

‘The sickest patients’

Patients on mechanical ventilators need constant monitoring and often need to be completely sedated. (Hailley Furkalo/CBC)

In a normal year, Manitoba ICUs take care of around 5,000 patients, according to Shared Health, the authority responsible for co-ordinating health care in the province.

“ICUs are places in hospitals to take care of the sickest patients,” said Dr. Allan Garland, an ICU physician and co-head of the critical care medicine section of the University of Manitoba’s college of medicine.

The vast majority of COVID-19 patients admitted to an ICU — around 95 per cent — will either be on the verge of respiratory failure so severe they need to be put on a medical ventilator, or already need ventilation, said infectious disease expert Dr. Anand Kumar.

The experience of being on a ventilator is “extremely unpleasant” and can even be traumatic, said Kumar, an intensive care unit physician at Health Sciences Centre.

“You have to basically sedate the heck out of them to the point that they’re almost in a coma, or sometimes you have to put them in a full coma and pharmacologically paralyze them.”

A tube is inserted into the patient’s mouth, down their trachea and into their lungs. Then the machine pumps in highly concentrated oxygen, while forcing the lungs to expand and contract.

The disease doesn’t only affect the lungs. 

“COVID is associated with problems in multiple organ systems,” Garland said, including the heart and gastrointestinal systems.

‘The whole gamut of people’

Beyond trained nurses and physicians, intensive care units need a host of other medical specialists and other staff to provide round-the-clock care for pateints. (Hailley Furkalo/CBC)

Caring for these patients requires a range of medical staff support.

Normally, there would be one critical care nurse for each ICU patient at all times, with a critical care physician for every four to eight patients, Kumar said.

But beyond that, “You need the whole gamut of people that work in hospitals to take care of these patients, and many of them are highly specialized,” said Garland.

ICU physicians need access to specialists in various fields, including surgery, cardiology, nephrology (kidneys), and gastroenterology. ICUs also need pharmacists, dietitians, anesthesiologists, nursing assistants and cleaners. 

In addition, ICUs need respiratory therapists to operate the ventilators — approximately one for every eight patients. 

As Manitoba health leaders expand the number of ICU beds, they’ve been forced to pull in staff from all corners of the health system. They have offered training to family physicians and redeployed nurses who have completed critical care training and now work in other fields.

The province is working to implement a team-based model that would enable critical care nurses to care for more than one patient at a time. These teams include “nurse extenders” — often ward nurses who haven’t completed a six-month critical-care nursing program offered through the WRHA — as well as respiratory therapists, physiotherapists and other support staff.

“By identifying the tasks that other health-care workers are able to support, the critical-care nurses are able to support the most specialized care needs of more than one patient,” said a spokesperson for Shared Health.

Tamlin, the ICU nurse in Toronto, worries about the impact this could have on the care each patient receives. ICU nurses receive specialized training to do things like interpreting wave signatures on a heart monitor, or increasing and decreasing specialized medications. 

“Now, if you have me watching three critically ill patients, I’m not only watching after the patients. I’m also going to be trying to monitor these staff of various expertise, coming from various places,” she said.

Space and power

The equipment needed to take care of patients in an ICU, including monitors, ventilators and IV pumps, requires more power than a typical hospital room has. (Hailley Furkalo/CBC)

Patients with lesser needs can be moved to other areas of the hospital not traditionally used for medical care, or even to sites outside the hospital. The same is not true for ICU patients.

“You need a special space that’s been designed or adapted for the mechanical needs, the equipment that needs to be there,” Kumar said.

The rooms need to be big enough to fit all that equipment.

ICU beds are larger than typical hospital beds, in order to safely accommodate a sedated patient hooked up to a variety of complex equipment. That includes banks of monitors such as echocardiograms (heart monitors), blood pressure monitors and electroencephalograms (brain activity monitors).

Patients may need continuous low-intensity dialysis, requiring another bulky piece of equipment.

The rooms also need medical gas pumped in through outlets connected to large tanks outside the hospital, suction machines to clear airways and numerous IV poles for the medications needed to keep patients alive. 

To power all of this equipment, each bed needs a number of electrical outlets — more than an average hospital room would have. 

All of that limits which spaces can be converted to ICU beds, leaving operating rooms and post-op recovery rooms among the few options. Hundreds of procedures have been postponed, and more simply aren’t being scheduled, so these spaces can be turned over to intensive care.

Ideally, when treating patients with infectious respiratory diseases, the rooms would have negative-pressure ventilation that continuously sucks air out. 

“Those are at a premium,” said Kumar, who estimates that about a quarter of Winnipeg ICU beds are equipped with negative-pressure ventilation under normal circumstances.

Spaces may need to be re-engineered to create negative pressure, he said. Some hospitals have accomplished this using high-efficiency particulate air (HEPA) filters.

Experience matters

Even trained nurses who haven’t experienced working in an intensive care unit might feel overwhelmed, said Toronto ICU nurse Patricia Tamlin. (Hailley Furkalo/CBC)

Despite the challenges of squeezing more ICU beds into the available space, the province says it has mapped out room to potentially care for over 100 more patients than the system could typically handle. 

Staffing those beds remains the challenge. 

“Even before COVID happened, there were some serious concerns about the supply of ICU nurses. Now, that concern has got to be dramatically increased,” Garland said.

Working in an ICU requires extensive training. Before taking the six-month ICU program, nurses need one year of experience in acute care. 

Health officials have repeatedly said no one will be required to do a task that they have not been trained to do.

It remains unclear what the ratio of nurses to patients will look like under the new team-based model. 

Even if nurses receive training to give them the skills needed to work in an ICU, without the years of experience of people like Tamlin, some health workers may still feel unprepared.

“They’re going to freak out. They’re going to be scared going to an ICU,” she said.

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CBC | Health News

World’s top intensive care body advises against use of remdesivir for sickest COVID-19 patients

The antiviral drug remdesivir should not be used as a routine treatment for COVID-19 patients in critical care wards, the head of one of the world’s top bodies representing intensive care doctors said, in a blow to the drug developed by U.S. firm Gilead.

Remdesivir, also known as Veklury, and the steroid dexamethasone are the only drugs authorized to treat COVID-19 patients across the world.

But the largest study on remdesivir’s efficacy, run by the World Health Organization (WHO), showed on Oct. 15 that it had little or no impact, contradicting previous trials.

In light of the new interim data from the WHO’s Solidarity trial, “remdesivir is now classified as a drug you should not use routinely in COVID-19 patients,” the president of the European Society of Intensive Care Medicine (ESICM), Jozef Kesecioglu, said in an interview with Reuters.

Gilead contests findings

Kesecioglu said the recommendation would be discussed in a scientific paper on COVID-19 therapies that ESICM is preparing with the Society of Critical Care Medicine, another intensive care body, expected to be published by January.

The first version of the paper, released in March, said there was not enough information to recommend the use of remdesivir and other antivirals in critically ill COVID-19 patients.

Gilead, which has questioned the WHO’s findings, said in an emailed statement: “We are confident that doctors on the front lines recognize the clinical benefit of Veklury based on robust evidence from multiple randomized, controlled studies.”

ESICM represents thousands of anesthesiologists, respiratory physicians, nurses and other critical care professionals in more than 120 countries.

While doctors and hospitals are not obliged to follow its advice, its recommendation could curb the use of remdesivir.

At the end of October, Gilead cut its 2020 revenue forecast, citing lower-than-expected demand and difficulty in predicting sales of remdesivir.

Widely used

The drug remains, however, widely used in hospitals. It is authorized or approved for use in more than 50 countries and was one of the medicines administered to U.S. President Donald Trump when he tested positive for coronavirus in October.

The European Union signed a one billion euro ($ 1.55 billion Cdn) deal with Gilead for 500,000 courses of remdesivir at 2,070 euros ($ 3,220 Cdn) each, days before the Solidarity results.

The deal does not oblige European countries to buy remdesivir, but governments decided to place large orders even after the Solidarity results, with Germany buying a big stock in November, saying the drug was useful, especially early in the course of the disease.

WATCH | Remdesivir does little to help COVID-19 patients, WHO study says:

A clinical trial by the World Health Organization finds that antiviral medication remdesivir has little or no effect on length of hospital stay or mortality in COVID-19 patients. Dr. Srinivas Murthy weighs in on what this could mean for treating the virus going forward. 2:04

Kesecioglu said there was not enough data available about when remdesivir might be effective or for which patients, leading to the decision to discourage its routine use in intensive care.

This means doctors should use remdesivir only occasionally and not as a standard treatment for COVID-19 patients.

Because of remdesivir’s unclear benefits, the critical care department at the University Medical Center of Utrecht in the Netherlands, where Kesecioglu works, has not used it to treat COVID-19 patients, he said.

Possible side effects

Ten months into the pandemic, a debate continues to rage in the medical industry about which drugs are best to treat hospitalized COVID-19 patients.

Remdesivir has potential side effects on the kidneys, according to data shared by Gilead with the European Medicines Agency, which is assessing its possible toxicity.

Arnaud Hot, head of medicine at Edouard Herriot hospital in Lyon, France, told Reuters that some patients at his hospital had experienced kidney injury and so it was no longer using remdesivir, except in rare cases.

Kesecioglu said convalescent plasma, which is also experimentally administered to some COVID-19 patients despite not having been approved, was also not recommended by ESICM for routine intensive care use, as its benefits were unclear.

He said the potential side effects of convalescent plasma — the liquid part of blood extracted from COVID-19 patients — were also not clear

In contrast, Kesecioglu said dexamethasone was recommended for use in hospitalised patients because there was sufficient information on its efficacy.

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CBC | World News

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