The advances in treatment for amyotrophic lateral sclerosis (ALS) have demo
nstrated the need to diagnose this disease precisely and directly. Two inte
rnational initiatives, at El Escorial in 1990 and at Airlie House in 1998,
have grappled with the clinical and laboratory elements that may accelerate
the diagnostic process. Shortly after the Airlie House meeting in 1998, an
international group of clinical neurologists met to discuss optimal manage
ment strategies in ALS. The goals were to examine current diagnosis and tre
atment pathways and to attempt to devise an algorithm that would foster ear
ly diagnosis, thus enhancing the possibility of optimal treatment.