"My blood pressure would raise to 230 over 120, and sometimes even higher," Jackson said.
That's dangerously above the normal adult pressure of 120 over 80. Over time, hypertension left Jackson exhausted and unable to work or care for her family.
"I felt like a wet piece of bread," she said. "What can you do with a wet piece of bread? Nothing."
Doctors implanted a device in Jackson's chest to lower her blood pressure.
"Similar to a pacemaker for the heart, there's a small battery and controller component that goes underneath the skin and wires leading from it," said Dr. John Blebea, of Temple University Hospital in Philadelphia, Pennsylvania.
Instead of wires going down to the heart, the wires lead up to the carotid arteries in the neck. When a patient's blood pressure is too high, they stimulate a nerve in the neck.
"That causes the brain to send out multiple signals to try to bring down the blood pressure," Dr. Blebea explained.
The brain sends those signals to lower a patient's heart rate by 10 beats per minute and relaxes the arteries.
With the device in place, Jackson's blood pressure is near normal.
"I have energy," Jackson said. "I feel alive again. I can do the things that I need to do."
The device is permanently implanted in patients and may require a battery change every two or three years, which can be done under local anesthetic. The surgery to implant the device can take several hours, and patients who have hardened arteries or advanced heart disease are at increased risk of stroke from the procedure. Most people with high blood pressure show no symptoms and may go years without knowing they have it.
Web produced by Maura Sweeney
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