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Advance in early diagnosis of spatial neglect after stroke

Date:
January 3, 2012
Source:
Kessler Foundation
Summary:
Bedside clinical evaluation can be optimized to diagnose spatial neglect, a disabling disorder that impedes recovery after stroke, according to stroke specialists. Often overlooked, it is associated with prolonged hospital stays, accidents, falls, safety problems and chronic functional disability. Early recognition and targeted cognitive rehabilitation may improve outcomes for the 30-50 percent of stroke survivors with this hidden disability that can be more disabling than paralysis.

Researchers at Kessler Foundation and Seton Hall University report findings in the early diagnosis of acute spatial neglect, a hidden disability that is a common complication of stroke. In the weeks after stroke, 30-50% of stroke survivors cannot reliably report or respond to external events that take place in the space opposite the side of their brain injury. Called spatial neglect, this disorder is a problem with attention and action rather than vision. Often overlooked, it is associated with accidents, falls, safety problems and functional disability that impedes recovery.

According to Anna Barrett, MD, director of Stroke Rehabilitation Research at Kessler Foundation, this study is unique in its focus on patients in the acute phase. "Early detection of spatial neglect after stroke could enable cognitive interventions to improve function, and might prevent chronic disability," explained Dr. Barrett. "Spatial neglect is often thought of as a visual problem, but it critically impairs action and movement."

While the impact of weakness and paralysis are well recognized, the effects of hidden disabilities like spatial neglect are underestimated. "Spatial neglect doubles or triples the disability a stroke survivor with paralysis experiences," said Dr. Barrett, " and could make the difference between chronic dependence and successful return to work and life. That is why it is important to diagnosis early and include cognitive interventions in the rehabilitation plan."

The study is unique in looking at correlations between laboratory tools and the bedside tools clinicians use to diagnose spatial-motor dysfunction. Investigators studied 51 consecutive inpatients with right brain stroke and left neglect, within a mean 22.3 days post-stroke. Each was evaluated with laboratory measures of perceptual-attentional and motor-intentional deficits and 2 bedside measures-- the Behavioral Inattention Test (BIT)-conventional and the Catherine Bergego scale (CBS).

Researchers determined that these psychometric assessments may be used to identify specific motor-exploratory deficits in spatial neglect. Specifically, obtaining CBS-ME scores routinely might improve the detection of spatial action deficits so that clinicians can implement appropriate care and safety interventions. Without specific cognitive rehabilitation, spatial-action deficits may persist and cause chronic disability. "Much effort goes into hi-tech approaches," commented Dr. Barrett. "This study, however, shows that clinical tools can be optimized for the bedside, to identify patients who need targeted management and therapy."

The article, "Psychometric evaluation of neglect assessment reveals motor-exploratory predictor of functional disability in acute-stage spatial neglect," appears in the January 2012 issue of Archives of Physical Medicine & Rehabilitation, vol. 93(1)(doi:10.1016/j.apmr.2011.06.036). Authors are Kelly M. Goedert, PhD, of Seton Hall University, South Orange, NJ, Peii Chen, PhD, Amanda Botticello, PhD, Jenny R. Masmela, BA, and Anna M. Barrett, MD, of Kessler Foundation, West Orange, NJ, and Uri Adler, MD, of Kessler Institute For Rehabilitation, West Orange, NJ. Dr. Barrett is also chief of Neurorehabilitation Program Innovation at Kessler Institute. Drs. Barrett, Adler, Botticello, and Chen are also affiliated with UMDNJ-New Jersey Medical School, Newark, NJ.

Research was supported by Kessler Foundation and the National Institute of Neurological Disorders and Stroke (grant nos. K02 ns 047099-05, R01 ns 055808-02).


Story Source:

The above story is based on materials provided by Kessler Foundation. Note: Materials may be edited for content and length.


Cite This Page:

Kessler Foundation. "Advance in early diagnosis of spatial neglect after stroke." ScienceDaily. ScienceDaily, 3 January 2012. <www.sciencedaily.com/releases/2012/01/120103135556.htm>.
Kessler Foundation. (2012, January 3). Advance in early diagnosis of spatial neglect after stroke. ScienceDaily. Retrieved August 21, 2014 from www.sciencedaily.com/releases/2012/01/120103135556.htm
Kessler Foundation. "Advance in early diagnosis of spatial neglect after stroke." ScienceDaily. www.sciencedaily.com/releases/2012/01/120103135556.htm (accessed August 21, 2014).

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