title: [Pronostic factors and survival in motor neuron disease].
abstract: BACKGROUND
  Amyotrophic lateral sclerosis (ALS) is the most common adult motor neuron disease (MND), presenting with a combination of upper (UMN) and lower (lmn) motor neuron signs, with high mortality. other less frequent mnd are progressive muscular atrophy (pma) and primary lateral sclerosis (pls).
  
  
  OBJECTIVE
  To describe demographic data, clinical forms of presentation and evolution of patients with MND, looking for prognostic indicators factors.
  
  
  METHODS
  Retrospective study of a series of patients with MND, registering demographic data, clinical variables and mortality-survival, analyzed by means of statistical package SPSS 6.1.2.
  
  
  RESULTS
  They are 54 patients with MND (50 ALS, 3 PMA and 1 PLS), 30 (55.6%) men and 24 (44.4%) women, bulbar beginning forms in 13 cases (24.1%) and spinal in 41 (75.9%). Average age at beginning 60+/-14 (29-82 years), more delayed in women (p<0.05), and in patients with bulbar form (p<0.05) with clear predominance of female sex (p<0.03). There are 31 dead patients (57.4%) and 23 alive ones (42.6%), with average survival from the beginning symptoms of 46.51+/-40.9 months. Nine months (11-209), observing inversely proportional relation with the age of beginning of the disease (p<0.02). Bulbar beginning forms (p<0.01) and LMN affectation signs, specially bulbar and cervical levels (p<0,005), are associated with a greater probability of dying while the existence of UMN affectation signs on imaging techniques 362 ques has a greater probability of survival (p<0,05).
  
  
  CONCLUSIONS
  The advanced age and the bulbar beginning forms are factors of bad prognosis, specially the predominant affectation of LMN over UMN.
authors.affiliation: Servicios de Neurología.,Hospital Clínico Universitario Lozano Blesa, Zaragoza. plarrodepellicer@yahoo.es
authors.forename: P
authors.initials: P
authors.lastname: Larrode-Pellicer
authors.forename: O
authors.initials: O
authors.lastname: Alberti-González
authors.forename: C
authors.initials: C
authors.lastname: Iñiguez-Martínez
authors.forename: S
authors.initials: S
authors.lastname: Santos Lasaosa
authors.forename: C
authors.initials: C
authors.lastname: Pérez-Lázaro
authors.forename: L J
authors.initials: LJ
authors.lastname: López del Val
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016472:Motor Neuron Disease / Q000150:complications / Q000175:diagnosis / Q000401:mortality*; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate