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Traumatic brain injury may elevate cardiovascular and cognitive dysfunction: Lancet Study

TBI is a leading cause of long-term disability and premature death, especially among military personnel and those playing contact sports.

Edited By: Kristina Das New Delhi Published on: September 22, 2023 17:19 IST
cardiovascular and cognitive dysfunction
Image Source : FREEPIK The new Lancet Study has found that traumatic brain injury may elevate cardiovascular and cognitive dysfunction.

A recent study published in The Lancet Neurology journal has found that under-recognised traumatic brain injury (TBI) may elevate the risk of both cardiovascular and cognitive dysfunction. The research identified a potential link between TBI and increased risk for chronic diseases such as stroke, heart disease, and dementia. The study also suggested that TBI can lead to a variety of cognitive impairments, including memory loss, difficulty concentrating, and slower reaction times. Furthermore, the findings showed that those who suffer from TBI may be more likely to develop cardiovascular problems due to an increase in inflammation. The study highlights a need for further research into the long-term effects of TBI and its associated risks.

TBI is a leading cause of long-term disability and premature death, especially among military personnel and those playing contact sports.

Existing research has identified a strong link between TBI and neurological conditions, such as Alzheimer's disease and dementia. However, the mechanisms driving neurological disease after TBI remain poorly understood.

The study finds that non-neurological effects of TBI, such as cardiovascular, cardiometabolic and endocrine dysfunction, may act as intermediaries contributing to neurological disease decades after TBI.

"Despite decades of extensive traumatic brain injury focused research, surprisingly, there has been minimal progress in mitigating long-term outcomes and mortality following injuries," said first author Saef Izzy, from the Stroke and Cerebrovascular Center of Brigham and Women's Hospital in the US.

“The cardiovascular effects of TBI may be a missing link in advancing our efforts to improve long-term quality of life and reducing mortality rates in TBI patients," said Izzy.

Also, weight gain and sleep disturbances after an injury could pose independent or additive risks and disruptions to connections between the nervous and gastrointestinal systems could throw off the balance of microbes in the gut, contributing to cognitive and cardiovascular effects.

However, it remains unclear how single versus repetitive injuries, age at injury, TBI severity, and other comorbidities impact cardiovascular risk.

"This review is a clarion call to conduct better assessments and earlier intervention for survivors of TBI who may have increased cardiovascular risk. It calls for new or expanded datasets that capture, over time, changes in biomarkers and targets associated with cardiovascular disease," said Ross Zafonte, the corresponding author, Chief of the Departments of Physical Medicine and Rehabilitation at Massachusetts General Hospital and Brigham and Women's Hospital.

"There is a growing recognition that many systems interact to produce multilevel dysfunction after TBI, with a series of nuanced comorbidities," Zafonte concluded.

(With IANS Inputs)

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