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LTC elderly especially vulnerable in heat waves, expert warns – The Sudbury Star

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“The elderly have been in lockdown for weeks. Our work is showing that the elderly are very vulnerable. They’re isolated and many can’t speak for themselves,” said Dr. Glen Kenny, a physiologist at the University of Ottawa.

A file photo of an elderly woman in a wheelchair. Dr. Glen Kenny of the University of Ottawa says older individuals are at higher risk during heat waves because, unlike those who are younger, they get too warm and stay that way.

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An Ottawa researcher who studies how the human body regulates heat is concerned about how heat waves will affect the elderly living in long-term care.

“The elderly have been in lockdown for weeks. Our work is showing that the elderly are very vulnerable. They’re isolated and many can’t speak for themselves,” said Dr. Glen Kenny, a physiologist at the University of Ottawa, where he leads projects using the world’s only direct calorimeter, a device that takes precise measurements of body heat exchange.

As people grow older, they can’t dissipate heat in the same way as younger people, whose core temperatures stabilize over time, he said.

Instead, elderly people warm up during a day-long exposure to higher temperatures and remain warm.

Older people are also vulnerable because they are more likely to have chronic conditions such as type 2 diabetes and high blood pressure.

“As we age, there is a deterioration in the ability to lose heat,” Kenny said.

He and his fellow researchers have noted this effect in subjects as young as 40.

Older people sweat less than younger people. One study showed that looked at heat dissipation in men between 20 and 70 found that whole-body sweat rate was significantly reduced in the subjects between the ages of 45 and 70.

The researchers also found that men as young as 40 stored more heat compared to younger men. Not only should older people be cautious about exercising when the mercury rises, but middle-aged people should also understand they may be more prone to heat-related illness.

Glen Kenny, a physiologist and researcher atUniversity of Ottawaphysiologist Glen Kenny researches human heat response.


University of Ottawa physiologist Dr. Glen Jenny researches human heat response.

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Heat waves are deadly, and they are especially deadly for seniors. Increases in core temperatures have been associated with increased heart rate and an increase in cardiovascular deaths during extreme heat events.

More than 90 people were believed to have died as a result of a July 2018 heat wave in Quebec. It was estimated that almost three-quarters of the victims had chronic illnesses, and two-thirds were over age 65.

In Ottawa, where temperatures can change dramatically, there’s no time for the body to prepare for a heat wave, Kenny said.

Expect a high of 34 C on Saturday with a Humidex of 39 and an overnight low of 20 C, according to Environment Canada. On Sunday, the temperature will rise to 32 C with a low of 20 C overnight. It’s not expected to cool off until Wednesday.

The City of Ottawa has been opening splash pads this week, but does not expect to open public beaches until June 27 at the earliest, followed by wading pools and indoor and outdoor pools in July.

COVID-19 is hard an everyone during a heat wave, but the elderly are at the centre of a perfect storm.

Physical distancing means it’s less likely someone will check on a senior living alone. And, while Ontario LTC homes must have some air-conditioned common rooms by law, there is no requirement that bedrooms have air conditioning.

At the same time, people who live in Ottawa, where temperatures can veer from cool to hot, are not acclimatized to the heat, while people who live in climates where they are often exposed to extreme heat are already acclimatized, Kenny said.

“Canadians do adapt over the summer period, but it takes time.”

During heatwaves, people often experience a sense of malaise or confusion, which puts them at risk of errors and accidents, said Kenny, whose research subjects have also included including elite athletes, first responders, miners who work far underground, people with chronic disease and burn patients.

The elderly also often show few signs of heat stress. By the time they report they’re “feeling warm” they are already in danger.

“If any older person says they’re hot, then their core temperature is high. By the time they complain, it may be too late,” Kenny said.

His advice? Check in regularly with older family members and neighbours.

If an elderly person says they’re hot, relocate them to a cool room.

Hydrate, hydrate, hydrate, of course. A shower is a good option to cool down rapidly, but it’s not recommended for the elderly. Instead, use wet towels around the neck and armpits, where blood vessels are close to the surface, Kenny said.

“A heat wave is a kind of trauma to the human body,” he said. “The system take weeks to adapt.”

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How many Nova Scotians are on the doctor wait-list? Number hit 160,000 in June

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HALIFAX – The Nova Scotia government says it could be months before it reveals how many people are on the wait-list for a family doctor.

The head of the province’s health authority told reporters Wednesday that the government won’t release updated data until the 160,000 people who were on the wait-list in June are contacted to verify whether they still need primary care.

Karen Oldfield said Nova Scotia Health is working on validating the primary care wait-list data before posting new numbers, and that work may take a matter of months. The most recent public wait-list figures are from June 1, when 160,234 people, or about 16 per cent of the population, were on it.

“It’s going to take time to make 160,000 calls,” Oldfield said. “We are not talking weeks, we are talking months.”

The interim CEO and president of Nova Scotia Health said people on the list are being asked where they live, whether they still need a family doctor, and to give an update on their health.

A spokesperson with the province’s Health Department says the government and its health authority are “working hard” to turn the wait-list registry into a useful tool, adding that the data will be shared once it is validated.

Nova Scotia’s NDP are calling on Premier Tim Houston to immediately release statistics on how many people are looking for a family doctor. On Tuesday, the NDP introduced a bill that would require the health minister to make the number public every month.

“It is unacceptable for the list to be more than three months out of date,” NDP Leader Claudia Chender said Tuesday.

Chender said releasing this data regularly is vital so Nova Scotians can track the government’s progress on its main 2021 campaign promise: fixing health care.

The number of people in need of a family doctor has more than doubled between the 2021 summer election campaign and June 2024. Since September 2021 about 300 doctors have been added to the provincial health system, the Health Department said.

“We’ll know if Tim Houston is keeping his 2021 election promise to fix health care when Nova Scotians are attached to primary care,” Chender said.

This report by The Canadian Press was first published Sept. 11, 2024.

The Canadian Press. All rights reserved.

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Newfoundland and Labrador monitoring rise in whooping cough cases: medical officer

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ST. JOHN’S, N.L. – Newfoundland and Labrador‘s chief medical officer is monitoring the rise of whooping cough infections across the province as cases of the highly contagious disease continue to grow across Canada.

Dr. Janice Fitzgerald says that so far this year, the province has recorded 230 confirmed cases of the vaccine-preventable respiratory tract infection, also known as pertussis.

Late last month, Quebec reported more than 11,000 cases during the same time period, while Ontario counted 470 cases, well above the five-year average of 98. In Quebec, the majority of patients are between the ages of 10 and 14.

Meanwhile, New Brunswick has declared a whooping cough outbreak across the province. A total of 141 cases were reported by last month, exceeding the five-year average of 34.

The disease can lead to severe complications among vulnerable populations including infants, who are at the highest risk of suffering from complications like pneumonia and seizures. Symptoms may start with a runny nose, mild fever and cough, then progress to severe coughing accompanied by a distinctive “whooping” sound during inhalation.

“The public, especially pregnant people and those in close contact with infants, are encouraged to be aware of symptoms related to pertussis and to ensure vaccinations are up to date,” Newfoundland and Labrador’s Health Department said in a statement.

Whooping cough can be treated with antibiotics, but vaccination is the most effective way to control the spread of the disease. As a result, the province has expanded immunization efforts this school year. While booster doses are already offered in Grade 9, the vaccine is now being offered to Grade 8 students as well.

Public health officials say whooping cough is a cyclical disease that increases every two to five or six years.

Meanwhile, New Brunswick’s acting chief medical officer of health expects the current case count to get worse before tapering off.

A rise in whooping cough cases has also been reported in the United States and elsewhere. The Pan American Health Organization issued an alert in July encouraging countries to ramp up their surveillance and vaccination coverage.

This report by The Canadian Press was first published Sept. 10, 2024.

The Canadian Press. All rights reserved.

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