Wednesday, August 6, 2014

TEMPORARY SUB FOR PLAYERS WITH PROBABLE CONCUSSION

FIFA Laws of the Game, rule change proposal: Temporary substitution to allow proper evaluation of a player who has suffered a possible concussion

Dr. Daniel Meeroff and Dr. J.C. Meeroff


A concussion is a very serious problem affecting many soccer players.
A concussion is a complex pathophysiological process that affects the brain, typically induced by trauma to the head and/or upper body (traumatic brain injury or TBI). It can be caused either by a direct blow to the head, or an indirect blow to the body, causing internal biochemical changes in the brain. In soccer, those changes usually resolve spontaneously with no consequences, but in some cases they can lead to severe cerebral alterations resulting in cognitive changes such as memory deficits, sleep disturbances and eventually in some cases to severe conditions leading to permanent disability and even the death of the affected athlete.
A major determinant in the prognosis of concussion depends on the management of the initial impact. It is has been well established that  a second impact immediately after the first impact (second impact syndrome or SIS) increases exponentially the risk for severe complication and decreases the likelyhood of fast recovery. SIS carries a 50% mortality rate and an almost 100% morbidity rate.
In the US, repeated head trauma forced retirement of New England Revolution stra Taylor Twellman in 2010. Concusions also forced out DC United Bryan Namoff and Alecko Eskandarian, like Twellman a former league MVP. In 2012, Seatlle Sounders back up keeper Terry Boss retired because of complications from concussions

These are only a few examples of a problem of great magnitude. In response to these facts, the MLS and the NASL (the two professional men’s leagues in the US) have implemented a drastic policy mandating that a player suspected of having a concussion in a game or practice must be removed immediately and evaluated. In youth soccer in the US, the policy is that a player who has suffered a trauma that can cause a concussion must be substituted and prohibited to return to play in the game.

We propose to modify the current text of FIFA’s Law Three-The number of players- to allow for proper examination and management of a player who suffered a concussion during a match.

The proposed changes are as follows:
The injured player who demonstrates signs of concussion must be mandatorily removed from the field of play and a temporary substitution must be allowed (one substitution that will not count as one of the maximum allowable substitutions according to the rules of the competition) to permit the team to keep playing without disadvantage, while the injured player is evaluated by a neuro-trauma expert physician unaffiliated with the teams to determine if, the player can safely return to play. If he/she can indeed return, the temporary substitution ends. He/she is back on the field at the next stoppage of play, and the temporary substitute returns to the bench. And the team is not charged with a substitution. The player who came in as the temporary substitute in this case and was removed, may re-enter as an official substitute at a later time. Contrarily, if the player is in no condition to return to play, then the temporary substitution becomes official and counts as one of the maximum allowed by the Laws of the Game.
Examples:
Blue #5 is involved in a collision and exhibits signs of a concussion. Team medical personnel enter the field of play, and the player is removed for further evaluation by the neutral neuro-trauma expert. The Blue team is allowed to have #20 from the list of eligible substitutes enter as a temporary substitute.
Situation 1: Blue #5 is determined to have no concussion symptoms and is allowed to re-enter the game.
Then, Blue #20 is removed, and the team is not charged with a substitution. Blue #20 is allowed to enter at a later time as an official substitute if necessary and if the team has not used up its maximum number of substitutions.
Situation 2: Blue #5 is determined to have a significant concussion and is not allowed to re-enter.
Then, Blue #20 remains on the field and becomes an official substitute. The team is charged with one substitution.
Situation 3: Blue #5 is determined to have a significant concussion and is not allowed to re-enter. The team has already used up its maximum number of substitutions before the time of the injury occurred.
In these circumstances, Blue #20 is removed from the field, and the team plays short.
The process recommended here is similar to the one used in the American NFL, and it was suggested to be implemented in England by the British media after the concussion suffered by Tottenham GK Hugo Lloris in a match vs Everton last year. This idea of a temporary substitution has ample support from players and sport physicians as well.

References:
Doolan A.D., Day D.D., Maerlender, A.C, Goforth M. and Brolinson, P.G; A Review of Return to Play Issues and Sports-Related Concussion. Ann Biomed Eng 2011

American College of Sports Medicine. Concussion (mild traumatic brain injury) and the team physician: a consensus statement. Med. Sci. Sports Exerc. 2006: 38:395–399

Consensus statement on concussion in sports: The 4th International Conference on Concussion in Sport held in Zurich, November 2012. Br J Sport Med 2013: 250-258