KING-DEVICK TEST PDF

Background The King-Devick (KD) test is an objective clinical test of eye movements that has been used to screen for concussion. , King-Devick Test. Patent-Pending. All Rights Reserved. Mayo and Mayo Clinic are registered trademarks owned by Mayo Foundation for. King-Devick Test identifies real-time concussion and asymptomatic concussion in youth athletes. Priya S. Dhawan, Danielle Leong, Lisa Tapsell, Amaal J.

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The K-D test, based on measurement of the speed of rapid number naming, can capture impairment of eye movements, iing-devick, language, and other areas that correlate with suboptimal brain function.

Changes in scores from prefight to postfight also reflected this pattern and showed more separation between those with king-devcik without head trauma than the postfight scores alone. Maguire serves on the editorial boards of OphthalmologyCorneaand Current Opinion in Ophthalmology ; and receives research support from Inspire Pharmaceuticals, Pfizer Inc.

The King-Devick test as a determinant of head trauma and concussion in boxers and MMA fighters

Return-to-play criteria after athletic concussion: The K-D test represents a strong candidate rapid sideline screening test for concussion, and has particular relevance to contact sports including football, soccer, hockey, MMA, and boxing.

However, there was no overlap in the distribution of changes in scores from prefight to postfight, with a substantial gap between the worst change in the no head trauma group and the best change in the head trauma group. The sum of the 3 test card time scores constituted the summary score for the entire test, the K-D time score.

BranasPhD, M. Numbers of errors made in reading the test cards are also recorded; misspeaks on numbers are recorded as errors only if the subject does not immediately correct the mistake before going on to the next number. See commentary ” Sideline assessment of sports concussion: Am J Sports Med ; Concussion assessment and management. In other sports such as football, closed head injury and concussion could occur in the context of plays involving many individuals, and head trauma may not be as readily detected.

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The King-Devick test as a determinant of head trauma and concussion in boxers and MMA fighters

With the exception of one participant, all fighters and boxers were men. Written informed consent was obtained from all participants and principles outlined in the Declaration of Helsinki were followed. Postfight K-D time scores were significantly higher worse for participants who had head trauma during the match The K-D test is an accurate and reliable method for identifying athletes with head trauma, and is a strong candidate rapid sideline screening test for concussion.

Neuropsychological impairment in amateur soccer players. Football brain injuries draw increased scrutiny. Sports-related concussion has received increasing attention as a cause of short- and long-term neurologic symptoms among athletes. Reliability study of the Pierce and King-Devick saccade tests.

Am J Optom Physiol Optics ; Alzheimers Res Ther ; 2: The postfight K-D score distributions showed some overlap between the groups with and without head trauma figure 2.

Articles from Neurology are provided here courtesy of American Academy of Neurology. Risk of injury associated with body checking among youth ice hockey players. MaddaMD, D. Published online Feb 2. The management of sports-related concussion: Numbers of errors made in reading the test cards were recorded.

This observation likely reflects learning effects for the K-D test. Another important aspect of evaluating a potential screening test is the correlation of scores with an established battery of tests that measure the construct under study.

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To the extent that the K-D test captures saccadic eye movements among other important elements of rapid number naming, these data suggest that this quick screening test will be helpful in identifying athletes with signs of concussion. Please review our privacy policy. Can J Neurol Sci ; Gregory S, Bissinger B. We investigated the K-D test as a potential rapid sideline screening for concussion in a cohort of boxers and mixed martial arts MMA fighters.

AllenOD, F. A total MACE score less than 25 is considered to represent clinically tesg neurocognitive impairment and require further evaluation for brain injury.

Since our study cohort consisted of boxers and MMA fighters, head trauma that occurred was observable and overt. In fact, worsening by 5 seconds or more was a distinguishing characteristic noted only among the participants with head trauma. After the individual 9-minute sparring sessions, each boxer was retested once using the K-D test.

TennantEdD, C. Corrections were made for near vision as needed. Author information Article notes Copyright and License information Disclaimer. GalettaMS, J. King-devikc demonstrated in table 1the lower limit of the range of worsening of K-D time scores for participants with head trauma was 5. The King-Devick K-D test is based on measurement of the speed of rapid number naming.

Chronic traumatic brain injury in professional soccer players.