Strokes are typically attributed to clots from the heart or plaque buildup in the carotid arteries. However, a recent nationwide study highlights a less recognized but fast-growing cause.
Data reveal that hospital admissions for this stroke category surged 400% from 2005 to 2019. Dr. Shadi Yaghi, a vascular neurologist at Brown University, led an examination of 125,102 health records to explore this worrying trend.
Strokes from Cervical Artery Dissection
A cervical artery dissection occurs when the inner wall of an artery in the neck tears, allowing blood to enter between the layers and create a flap. This can either slow blood flow or lead to clot formation, which results in an ischemic stroke.
Remarkably, around one in four strokes in adults under fifty can be traced to this hidden injury, marking it as a significant danger during one’s working years.
Such tears can happen after a car accident, a sports hit, or just lifting something heavy. Sometimes, even an awkward reach into the backseat can cause it.
Advancements in ultrasound and MRI technology have recently enabled the detection of small mural bruises that previous methods might have missed. So, the current statistics reflect both a genuine increase and improved awareness.
Indicators Something Might be Off
An abrupt headache on one side or neck pain, occasionally along with a drooping eyelid, is a classic warning signal that emergency room professionals learn to identify. Some patients may also perceive a pulsing “whoosh” in one ear, a sign of turbulent blood flow near the tear.
When symptoms aren’t clear-cut, doctors might look for Horner’s syndrome, characterized by a small pupil and a partially droopy eyelid, often connected to this type of injury.
Emergency departments commonly utilize computed tomography angiography—a dye scan that quickly maps blood flow—as a first-line test for younger stroke patients.
Why the Numbers Keep Rising
The occurrence of these strokes increased from eleven to forty-six cases per million individuals over a span of fifteen years, averaging a ten percent rise annually.
Hispanic and Black Americans experienced the most significant increases, nearly doubling the rise seen among white patients, indicating disparities in trauma exposure and access to timely care.
More affordable scanning technology allows smaller hospitals to conduct vascular examinations on-site. Practitioners are also more proactive, often scanning before asking questions, which helps catch tears that might have previously gone unnoticed.
“Non-fatal strokes can lead to long-term disabilities, mental health struggles, and reduced quality of life,” Dr. Yaghi noted, emphasizing the importance of early diagnosis.
The most notable increase was observed in individuals over sixty-five, hinting that age-related vascular changes and improved imaging techniques may be revealing cases that were once mistaken for arthritis pain.
Identifying Cervical Artery Strokes
According to sports medicine literature, dissections can be linked to activities like wrestling, surfing, or yoga poses that stretch the neck beyond its safe range.
One case involved a thirty-four-year-old woman who suffered a fatal stroke just hours after a chiropractic adjustment, leading health professionals to weigh the risks against potential benefits.
Individuals with connective tissue disorders, such as Ehlers-Danlos syndrome, are at heightened risk. Studies have also associated hypertension and migraines with aura to this condition.
Vertebral tears require careful attention; a national follow-up study suggested these could nearly double the stroke risk within ninety days, even when the initial hospital stay did not conclude with brain injury.
Shortcomings in Treatment and Follow-Up
Current guidelines recommend initiating an antiplatelet medication like aspirin for three to six months while reserving stronger anticoagulants for complicated cases or vertebral artery dissections reaching the brainstem.
In some cases, occlusive tears may necessitate stronger treatments, with many centers opting for follow-up imaging within a week to ensure blood is flowing effectively.
Intravenous clot-busting medications remain safe when administered within the designated timeframe, as per a recent American Heart Association review.
Endovascular stenting is typically reserved for recurrent incidents that occur despite medication, with observational studies reporting over ninety percent technical success in treated arteries.
Tele-stroke clinics are now offering rural patients the chance to get follow-up scans and check-ups without extensive travel, a change that might help bridge the racial disparities noted in recent findings.
Reducing Cervical Artery Stroke Risk
Wearing seat belts, positioning headrests to eye level, and avoiding neck twisting while lifting heavy items, even for brief trips, can help. Always ensure loose cargo is secured to prevent sudden reaching while driving; it’s a small but effective habit to protect your shoulders and arteries.
Strength-training specialists suggest gradually returning to weights with lighter loads and focused breathing once imaging confirms healing, advice informed by various sports case reviews.
Listen to your body—persistent one-sided headaches or new neck pain following minor trauma calls for medical attention, especially if any eye appears different or if speech becomes slurred.
Researchers are exploring direct oral anticoagulants and ultrasound markers that could potentially flag vulnerable arteries before they give way, with genetic studies investigating underlying connective tissue biology.
The study has been published in Neurology.
