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  • Intensive BP therapy...

Intensive BP therapy beneficial for BP control in octogenarians: SPRINT trial

Written By : Hina Zahid |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2020-01-18T15:43:41+05:30  |  Updated On 18 Jan 2020 3:43 PM IST
Intensive BP therapy beneficial for BP control in octogenarians: SPRINT trial
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USA: For adults aged 80 years or older, intensively controlling systolic blood pressure to less than 120 mmHg lowers the risk of heart attacks, stroke, death, and mild cognitive impairment, but increases the risk of declines in kidney function, a recent study in the Journal of the American Geriatrics Society has suggested. Benefits related to the risk for heart disease and death were highest in people with higher cognitive performance at the beginning of the trial.

The number of the elderly population who are 80-years-old and older is on the rise globally, thanks to better medical facilities. Since the lifetime chance for developing high blood pressure is at least 70 percent by age 80, more and more people will be at risk for the complications that blood pressure can cause namely heart attacks, strokes, kidney disease, and other serious problems, including risk for dementia.

The 2017 American College of Cardiology and American Heart Association blood pressure guidelines recommend that most people aged 65 or older maintain their systolic blood pressure (the first number in a blood pressure reading) at less than 130 mmHg. But, people 80 years or older often also have multiple chronic health conditions, can be frail, take several medicines, and could have cognitive problems. Because of this, it's still unclear whether the risks and benefits of lowering systolic blood pressure to less than 130 mm Hg are the same for people aged 80 years and older as they are for people aged 65 to 80.

Given this knowledge gap, a team of researchers focused on this group of older adults within a large randomized trial called the Systolic Blood Pressure Intervention Trial (SPRINT). They published their findings in the Journal of the American Geriatrics Society. In their analysis of SPRINT data, the researchers focused on people aged 80 and older, who had reported heart disease events (such as heart attacks or strokes), changes in kidney function, cognitive impairment, quality of life, or death. The researchers also explored whether impairments in cognitive or physical function had any effect on intensive blood pressure control.

The analysis included 1,167 participants. Most were around 84 years old, and about 3 percent were 90 or older. Their baseline systolic blood pressure was around 142 mmHg. Most of the participants had at least three chronic health conditions. More than half were taking at least five medications and about 27 percent had a history of heart disease.

The participants were randomly assigned to one of two groups. One group received "intensive" treatment targeting to lower their blood pressure to less than 120 mmHg. The other group received treatment to target lowering their blood pressure to less than 140 mmHg.

The people who received treatment to lower their blood pressure to less than 120 mmHg experienced a lower risk for heart disease events, as well as less risk for mild cognitive impairment and death from all causes. However, people in this group also experienced an increased risk of small, but meaningful, declines in kidney function as well as hospitalizations for short term kidney damage (from which most people recovered). Attempting to lower systolic blood pressure to less than 120 mmHg did not increase the risk for injury-causing falls. This is important since falls raise the risk for death in older adults and low blood pressure can result in falls.

While the rate of developing dementia was similar in the two groups, participants in the intensive 120 mmHg group were 28 percent less likely to develop mild cognitive impairment.

The researchers also reported that people with better cognitive function (remembering, thinking, and making decisions) at the beginning of the study benefited the most from intensive blood pressure control. They also experienced less heart disease and fewer deaths. This same benefit was not seen in participants who had a poorer cognitive function at the beginning of the study. However, there was not strong evidence of intensive blood pressure control having a harmful impact on death rates or developing heart disease for those with poorer cognitive function.

For more details click on the link: http://dx.doi.org/10.1111/jgs.16272

Source : Journal of the American Geriatrics Society
Hina Zahid
Hina Zahid

    Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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