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Extreme swings in blood pressure just as deadly as consistent high blood pressure

Intermountain Healthcare

 

Extreme ups and downs in systolic blood pressure may be just as deadly as having consistently high blood pressure, according to a new study from the Intermountain Medical Center Heart Institute in Salt Lake City.

Following a review of electronic medical records, researchers from the Intermountain Medical Center Heart Institute discovered that patients with systolic blood pressure numbers that varied by as much as 30 or 40 between doctor visits over an extended period of time were more likely to die than those with less extreme variances in their blood pressure.

60-year-old Marty Martin used to have some bad habits that caused his diabetes, lung issues and extreme swings in blood pressure.
“I drank. I smoked and ate nothing but fatty foods.”

Dr. Brian Clements at Intermountain Medical Center Heart Institute gave Marty a grim prognosis several years ago.
“he said you have to change the way you live or you’re going to die. It’s your choice.”
Marty, chose a path to healthy living.
“quite smoking, drinking and quit going to fast food restaurants.”
He also cut back on salt, lost 40 pounds and his blood pressure is now consistent.

Marty is grateful for Dr. Clements and the staff at Intermountain Medical Center Heart Institute.
“I feel fortunate. The way they take care of you, I have a new life in Utah.”

The systolic blood pressure reading (the upper number) indicates how much pressure blood is exerting against the artery walls when the heart beats. According to the American Heart Association, a normal systolic blood pressure is less than 120. High blood pressure is categorized as above 140.

 “Blood pressure is one of those numbers we encourage people to keep track of, as it’s one indicator of your health heart,” said Brian Clements, DO, an internal medicine specialist with the Intermountain Medical Center Heart Institute, and lead investigator of the study. “The takeaway from the study is, if you allow your blood pressure to be uncontrolled for any period of time, or notice big changes in your blood pressure between doctor visits, you increase your risk of stroke, heart attack, kidney or heart failure, or even death.”

 Results of the study of nearly 11,000 patients were reported today at the 2017 American Heart Association Scientific Sessions in Anaheim, CA.

 Researchers at the Intermountain Medical Center Heart Institute modeled their study after an analysis of the largest hypertension clinical trial ever conducted – the Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (ALLHAT).

 They examined visit-to-visit variability of systolic blood pressure in 10,903 patient records from Intermountain Healthcare facilities. The patients were required to have had seven blood pressure measurements between 2007 and 2011. After the date of their seventh recorded systolic blood pressure measurement, the patients were followed for five years, with researchers looking at all causes of mortality.

 “The call to action for patients as a result of this study is to do everything they can to control their blood pressure on a regular basis,” said Dr. Clements. “Eat healthy foods, exercise regularly, and if your doctor has prescribed you medications for your blood pressure, be sure and take them consistently. Because any time your blood pressure is out of control, you’re at higher risk of injury or death.”

 In most people, systolic blood pressure rises steadily with age due to increased stiffness of large arteries, long-term build-up of plaque, and increased incidence of cardiac and vascular disease, according to the the American Heart Association.

 Dr. Clements also recommends that people control their environment when measuring their blood pressure to help reduce additional variables from influencing the measurement.

 • Sit or lay down for 15 minutes prior to taking your blood pressure. Don’t do things that will cause you stress, as that may raise your blood pressure.

• Use a blood pressure cuff that fits. Make sure it’s not too tight or too large.

“After the ALLHAT study, we were in a unique position because Intermountain Healthcare has such a rich database of records that are perfect for identifying trends and outcomes,” said Dr. Clements. “In this case, we’re working to identify the cause of the variances in systolic blood pressure and learn if it’s an independent predictor of mortality, thus helping clinicians work with their patients to better manage their heart health.”

 Other members of the research team include Nathan Allred; Erik Riessen; Benjamin Horne, PhD; Raymond O. McCubrey; Heidi T. May, PhD; and Joseph B. Muhlestein, MD.

The Intermountain Medical Center Heart Institute, which is part of the Intermountain Healthcare system based in Salt Lake City, is one of the premier cardiovascular centers in the country.

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