- Associated Press - Monday, January 30, 2012

WASHINGTON (AP) — When a stroke hits at age 52, as it did Sen. Mark Kirk of Illinois, the reaction is an astonished, “But he’s so young.”

The reality is that strokes don’t just happen to grandma. They can happen at any age, even to children — and they’re on the rise among the young and middle-aged.

That makes it crucial to know the warning signs no matter how old you are.

“Nobody’s invincible,” warns Dr. Ralph Sacco, a University of Miami neurologist and past president of the American Heart Association.


Every year, about 795,000 people in the U.S. have a stroke. While some strokes are caused by bleeding in the brain, most are like a clogged pipe. Called ischemic strokes, a clot blocks blood flow, starving brain cells to death unless that circulation is restored quickly.

Make no mistake, the vast majority of strokes do occur in older adults, but up to a quarter of them strike people younger than 65, Dr. Sacco says.

In the so-called stroke belt in the Southeast, that figure can be markedly worse. At Wake Forest Baptist Medical Center in North Carolina, a stunning 45 percent of stroke patients are young or middle-aged, said Dr. Cheryl Bushnell, the stroke center director.

More ominous, recent government research found that nationwide, hospitalization rates for ischemic strokes have jumped by about a third among people ages 15 to 44 over the past decade.

Sometimes younger-age strokes are flukes with no warning signs, impossible to predict — as Mr. Kirk’s appears to be. The Republican senator is a Navy Reserve commander and avid swimmer, but dizziness sent him to the hospital. It turns out he had a tear in the carotid artery in his neck that blocked blood flow to his brain, triggering a stroke. Trauma usually causes such tears, although doctors haven’t been able to say what caused Mr. Kirk‘s. His doctor at a Chicago hospital said Monday that Mr. Kirk was continuing to improve from the stroke, which affected his left side.

Heart birth defects, such as a little hole in the heart known as a PFO, and blood-clotting disorders also tend to cause strokes more often in younger people than in seniors.

But just like strokes at older ages, a lot of strokes in younger people are preventable. The increase seems to be part of a troubling trend: As Americans get fatter, high blood pressure, diabetes and other artery-corroding consequences set in at an earlier age — meaning that resulting strokes can hit earlier, too.

Indeed, research reported in Annals of Neurology last fall found nearly one in three of the 15- to 34-year-olds hospitalized for a stroke, and more than half of those ages 35 to 44, already had high blood pressure.

More women are having strokes during or right after pregnancy, too, the government reported last summer. That’s because more of them start out with unhealthy conditions such as high blood pressure even before the hormonal changes kick in.

Whatever the cause or the age, anyone with stroke symptoms needs emergency care: sudden numbness or weakness in the face, arm or leg, especially on one side; sudden difficulty speaking or understanding speech; trouble seeing or walking; a sudden, supersevere headache.

Younger adults are less likely than seniors to know those symptoms and tend to try to shrug them off, Dr. Bushnell said. She pointed to a recent 50-something patient who twice ignored temporary episodes of weakness on one side. Called TIAs, for transient ischemic attacks, such episodes are a big red flag that a full-fledged stroke may be imminent. A third TIA finally brought him to the emergency room. By then, aggressive treatment wasn’t enough to avoid a stroke that left him with impaired speech.

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