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Tribune News Service

Kristin Kramer woke up early one morning 10 years ago because one of her dogs needed to go out. Then a couple of odd things happened.
When she tried to call her other dog, “I couldn’t speak”, she said. As she walked downstairs to let them into the yard, “I noticed that my right hand wasn’t working”.
She went back to bed, “which was totally stupid”, said Kramer, now 54 and an office manager in the US state of Indiana.
“It didn’t register that something major was happening,” especially because, reawakening an hour later, “I was perfectly fine”.


So she “just kind of blew it off” and went to work.
It is a common response to the neurological symptoms that signal a transient ischemic attack (TIA) or mini stroke.
At least 240,000 Americans experience one each year, with the incidence increasing sharply with age.
Because the symptoms disappear quickly, usually in minutes, people do not seek immediate treatment, putting them at high risk for a bigger stroke.
If you have one stroke or one TIA, with no other event over time, and no other change in your medical status, the rate of cognitive decline is the same
Victor Del Bene, neuropsychologist, the University of Alabama
Kramer felt some arm tingling over the next couple of days and saw her doctor, who found nothing alarming on a CAT scan. But then she started “jumbling” her words and went to hospital.
By now, she could not sign her name. “My doctor said, ‘You’ve had a small stroke’.”
Did those early-morning aberrations constitute a TIA? Might a call to emergency and an earlier start on anticlotting drugs have prevented her stroke?
“We don’t know,” Kramer said. She is doing well now, but faced with such symptoms again, “I would seek medical attention”.
According to a large study by researchers at the University of Alabama-Birmingham and the University of Cincinnati, published in JAMA Neurology, study participants’ cognitive test performance after a TIA drops as steeply over five years as it does among those who suffer a full-on stroke.
“If you have one stroke or one TIA, with no other event over time, and no other change in your medical status, the rate of cognitive decline is the same,” said Victor Del Bene, a neuropsychologist and lead author of the study.

An accompanying editorial by Eric Smith, a neurologist at the University of Calgary in Canada, was pointedly headlined “Transient Ischemic Attack – Not So Transient After All!”
The study showed that even if the symptoms resolve – typically within 15 minutes to an hour – TIAs triggered “a long-lasting change in people’s cognitive ability, possibly leading to dementia”, Smith said.
The study, which analysed findings from data on more than 30,000 participants, followed three groups of adults aged 45 or older with no history of stroke or TIA.
“It’s been a hard group to study because you lack the baseline data of how they were functioning prior to the TIA or stroke,” Del Bene said. However, with this longitudinal study, researchers could separate those who went on to have a TIA from a group who went on to suffer a stroke and also from an asymptomatic control group.
The team adjusted their findings for a host of demographic variables and health conditions.

Immediately after a TIA, “we don’t see an abrupt change in cognition” as measured by cognitive tests administered every other year, Del Bene said. The stroke group showed a steep decline, but the TIA and control group participants “were more or less neck and neck”.
Five years later, the picture was different. People who had experienced TIAs were cognitively better off than those who had suffered strokes. But both groups were experiencing cognitive decline, and at equally steep rates.
After accounting for various possible causes, the researchers concluded that the cognitive drop reflected the TIA itself rather than demographic factors, chronic illnesses or normal ageing.
“It’s not dementia,” Del Bene said of the decline after a TIA. “It may not even be mild cognitive impairment. But it’s an altered trajectory.”
Of course, most older adults do have other illnesses and risk factors, like heart disease, diabetes or smoking.
We know a lot more about how to prevent a stroke, as long as people get to a hospital
Tracy Madsen, epidemiologist
“These things together work synergistically to increase the risk for cognitive decline and dementia over time,” he said.
The findings reinforce concerns that people experiencing a TIA do not respond quickly enough to the incident.
“These events are serious, acute and dangerous,” said Claiborne Johnston, a neurologist and chief medical officer of Harbor Health in Austin, in the US state of Texas.
After a TIA, neurologists put the risk of a subsequent stroke within 90 days at 5 to 20 per cent, with half that risk occurring in the first 48 hours.
“Feeling back to normal doesn’t mean you can ignore this, or delay and discuss it with your primary care doctor at your next visit,” Johnston said.

The symptoms should prompt a call for an ambulance.
How to recognise a TIA? Tracy Madsen, an epidemiologist and emergency medicine specialist at the University of Vermont, promotes the Be Fast acronym: Balance loss, Eyesight changes, Facial drooping, Arm weakness, Speech problems and Time, as in do not waste any.
“We know a lot more about how to prevent a stroke, as long as people get to a hospital,” said Madsen, the vice-chairwoman of a committee of the American Heart Association that, in 2023, revised recommendations for TIAs.
The statement called for more comprehensive and aggressive testing and treatment, including imaging, risk assessment, prescribing anticlotting and other drugs, and counselling about lifestyle changes that reduce stroke risk.
Unlike other urgent conditions, a TIA may not look dramatic or even be visible; patients themselves have to figure out how to respond.

Karen Howze, 74, a retired lawyer and journalist in Reno, Nevada, did not realise that she had had several TIAs until after a doctor noticed weakness on her right side and ordered an MRI. Years later, she still notices some effect on “my ability to recall words”.
Perhaps “transient ischemic attack” is too reassuring a label, Johnston and a co-author argued in a 2022 editorial in JAMA. Giving a TIA a scarier name, like “minor ischemic stroke”, would more likely prompt a call to emergency services.
Changing medical practice is “frustratingly slow”, Johnston acknowledged. But whatever the nomenclature, keeping Be Fast in mind could lead to more examples like Wanda Mercer’S.
In 2018, she donated blood at a clinic outside her University of Texas office in Austin, then walked to a restaurant for lunch.
There she felt light-headed, fainted and woke up on the floor.

She assured the manager that she had just given blood, but an ambulance was on the way.
Accident and emergency doctors ran tests, saw no problems, gave Mercer intravenous fluids and discharged her.
“I began to tell my colleagues, ‘Guess what happened to me at lunch’!” she recalled. But, she said, she had lost her words: “I couldn’t articulate what I wanted to say.”
Colleagues sent her to accident and emergency again, where doctors diagnosed a minor stroke.
Mercer has had no recurrences. She takes a statin and a baby aspirin daily and sees her primary care doctor annually. Otherwise, at 73, she has retired to an active life of travel, pickleball, running, weightlifting and book groups.
“I’m very grateful,” she said, “that I have a happy story to tell.”
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Trouble speaking? Arm tingling? Act fast. It could be a mini stroke. The impact is lasting

Even after having trouble calling her dog, and feeling numbness in her hand, Kristin Kramer did not realise she was having a ministroke, and did not seek immediate help. 
Photo: Shutterstock

A mini stroke may not produce symptoms as dramatic as a full stroke, but the long-term effects can be equally serious, according to a recent study. Photo: Shutterstock

Even after having trouble calling her dog, and feeling numbness in her hand, Kristin Kramer did not realise she was having a mini stroke – and did not seek immediate help. Photo: Shutterstock

The rate of cognitive decline over time from a mini stroke is the same as for a full-on stroke, says Victor Del Bene, a neuropsychologist from the University of Alabama at Birmingham. Photo: University of Alabama at Birmingham

Study findings reinforce concerns that people experiencing TIAs do not respond quickly enough, says neurologist Claiborne Johnston. Photo: Harbor Health

A study shows that even if the symptoms of a mini stroke go away – typically within 15 minutes to an hour – TIAs trigger a long-lasting change in people’s cognitive ability, possibly leading to dementia. Photo: Shutterstock

Know the warning signs of a stroke – or mini stroke – and act quickly to get treatment for a victim. Illustration: Shutterstock

Tracy Madsen, an epidemiologist at the University of Vermont, promotes the Be Fast acronym to deal with symptoms of a stroke or mini stroke: balance loss, eyesight changes, facial drooping, arm weakness, speech problems and time, as in do not waste any. Photo: University of Vermont

After giving blood, Wanda Mercer fainted and was taken to hospital twice, where she was diagnosed as having had a minor stroke. Photo: Shutterstock 

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Santina Philips (right), a personal trainer and founder of Ursus Fitness, whose gym runs high-intensity weekend workouts known as Bear Camp, with client Kimberly Kwok, a participant in them. Photo: Dickson Lee

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Lifestyle

Health & Wellness

Health

Doing nothing if you have a mini stroke or transient ischemic attack (TIA) puts you at risk of a bigger one later on, and of having dementia


Doing nothing if you have a mini stroke or transient ischemic attack (TIA) puts you at risk of a bigger one later on, and of having dementia.
