Low blood pressure linked to increased death risk following stroke

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Even though high blood pressure or high blood pressure has been a well-established risk factor for stroke and death, it has been found that having low blood pressure is an equally large risk factor for death after stroke.

New Delhi: Even though high blood pressure or high blood pressure has been a well-established risk factor for stroke and death, it has been found that having low blood pressure is an equally large risk factor for death after stroke.


A new study suggests that stroke patients with low blood pressure and non-cardiovascular conditions such as cancer and dementia have a higher risk of death after stroke. These findings appear in the journal Stroke. “Low mean blood pressure, measured in the outpatient setting, was associated with an increased risk of death following the occurrence of a stroke. Furthermore, this higher risk of death occurs particularly in patients who smoke, or have a diagnosis of cardiovascular disease. , cancer or dementia,” corresponding author Hugo J. Aparicio, MD, MPH, assistant professor of neurology at Boston University School of Medicine and an investigator of the Framingham Heart Study.


Current national guidelines recommend treating high blood pressure after stroke, but the timing of this treatment and whether to treat patients in the normal, low or mild to high range of blood pressure is debated.


The researchers identified nearly 30,000 veteran patients with first ischemic stroke who had outpatient blood pressure measurements within the previous 18 months prior to stroke. They divided this group by blood pressure categories and followed them for all-cause and cardiovascular mortality outcomes over time, with the hypothesis that very high and very low blood pressure values ​​contribute to high mortality risk.


They found that individuals with low blood pressure had the highest mortality rates, especially when they looked at a subgroup of patients with at least one comorbidity of smoking, heart disease, cancer or dementia. “Our study shows that stroke patients with a history of at least normal blood pressure, about 10 percent of stroke patients, have a higher risk of mortality,” Aparicio said.


Researchers hope that by examining the factors that contribute to death after stroke, patients, families and physicians can better understand and identify conditions such as low blood pressure, which can predict their health outcomes. “Ideally, this information could encourage better prevention, diagnosis and treatment of risk factors such as smoking, heart disease and cancer, so that patients have a better chance of recovery and survival if a stroke occurs,” They said. (ANI)

First published:November 6, 2021, 4:42 PM

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