October 4, 2018
If you experience fluctuations in weight, blood pressure, cholesterol, or blood sugar level, you may be at a higher risk for heart attack, stroke, and premature death than people with more stable readings, according to a new study.
The research, published October 1, 2018, in the journal >Circulation, is the first to suggest that the fluctuation of health measures can negatively impact otherwise healthy people. And it’s also the first study to show that having more than one fluctuating measure adds to the risk of a heart attack, stroke, or death.
Researchers analyzed six years worth of data on close to seven million people in Korea and found that individuals whose readings changed the most were 127 percent more likely to die, 43 percent more likely to have a heart attack, and 41 percent more likely to have a stroke than men and women whose readings remained stable.
The results also held true even if measures like blood pressure or weight loss fluctuated but improved.
"Healthcare providers should pay attention to the variability in measurements of a patient's blood pressure, cholesterol, and glucose levels as well as body weight,” said Seung-Hwan Lee, MD, PhD, senior author of the study and professor of endocrinology at the College of Medicine of the Catholic University of Korea in Seoul, South Korea. “Trying to stabilize these measurements may be an important step in helping them improve their health."
Dr. Lee points out that the study was an observational one, meaning it can’t prove cause and effect, and said that more research is needed. Lee adds that it’s not certain whether this study is applicable to people in the United States, either.
“However,” he says, “several previous studies on variability were performed in other populations, suggesting that it is likely to be a common phenomenon.”
Nieca Goldberg, MD, an American Heart Association expert and director of NYU’s Center for Women's Health in New York City, agrees that the new study may not itself be applicable but that earlier research on blood pressure and weight cycling have been done in the United States.
“To see if this research holds in the United States a similar study would need to be repeated here,” says Dr. Goldberg, adding that many doctors already often monitor fluctuating health measures in their patients.
Goldberg says no one health measure studied seems to be more significant in terms of impact than the others. “All risk factors are important, and doctors see patients every day with multiple risk factors,” she says. “We start with identifying the risk factors and looking at whether lifestyle changes or lifestyle changes in combination with medication is needed. For blood pressure we recommend home blood pressure monitoring to better understand blood pressure variability, and diet and exercise are the foundation to improving weight, blood pressure, and cholesterol, though sometimes medications are needed.”
Goldberg adds that to improve detection of risk factors for heart disease from reading fluctuations in health measures such as blood pressure, patients need to schedule regular visits with their doctor. In between visits, patients who are worried about fluctuation can often communicate about their progress through secure portals in electronic health records that many physician practices are adding for patients.
Source : https://www.everydayhealth.com/heart-attack/study-finds-yo-yo-dieting-tied-heart-attacks-stroke-even-healthy-people/627