title: [The ventricular dysrhythmia profile in patients with mitral valve pathology].
abstract: OBJECTIVE
  To study the relation between ventricular arrhythmias and echocardiographic left ventricular data, in patients with mitral valve pathology.
  
  
  METHODS
  Retrospective study, based on Holter department data on ventricular arrhythmias.
  
  
  METHODS
  We studied 128 patients: 36 were male, 92 were female. Their mean age was 52 +/- 11 years. Three groups were outlined: 54 patients had mitral stenosis (ME), 15 patients had mitral disease (MD) and 59 had associated aortic pathology (MA).
  
  
  METHODS
  Patients clinical records were reviewed according to an evaluating protocol. In each Holter recorded the number of premature ventricular contractions per hour (PVC/h), as well as the existence of complex ectopic forms (CF) was considered. Echocardiographic left ventricular data used was: diastolic diameter (DD), systolic diameter (DS) and shortening fraction (SF). Treatment was not significantly different between the three groups, when 24 hour monitoring was performed.
  
  
  RESULTS
  We found the average number of PVC/h to be 14 +/- 45 in the ME group, 58 +/- 85 in the MD group and 52 +/- 11 in the MA group. There is significant difference between ME and either DM, or MA. In patients with ME significant relations were found between the occurrence of CF a greater DS (p < 0.01) and a lesser SF (p = 0.02). No significance was found for the occurrence of PVC. In patients diagnosed as DM, the occurrence of PVC/h (> or = 10) was related with greater DD (p = 0.01) or DS (p = 0.04), but there was no relation to SF. Finally in the MA group PVC occurrence was strongly related (p < 0.01) with all the echocardiographic values and thinner relations were found towards SF (p = 0.02 for DD, p = 0.03 for DS and p = 0.05 for SF).
  
  
  CONCLUSIONS
  Ventricular arrhythmic occurrence is less frequent in ME. However, in the three groups, there is worsening left ventricular arrhythmic frequency in direct relation to greater ventricular dimensions, or compromised systolic function.
authors.affiliation: Serviço de Cardiologia, Hospital de Santa Cruz.
authors.forename: L
authors.initials: L
authors.lastname: Bronze
authors.forename: L
authors.initials: L
authors.lastname: Brízida
authors.forename: L M
authors.initials: LM
authors.lastname: Falcão
authors.forename: A
authors.initials: A
authors.lastname: Ventosa
authors.forename: D
authors.initials: D
authors.lastname: Bonhorst
authors.forename: R
authors.initials: R
authors.lastname: Seabra-Gomes
mesh_terms: D000328:Adult; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology*; D015150:Echocardiography, Doppler; D015716:Electrocardiography, Ambulatory; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000150:complications* / Q000175:diagnosis / Q000453:epidemiology; D008946:Mitral Valve Stenosis / Q000150:complications* / Q000175:diagnosis / Q000453:epidemiology; D011174:Portugal / Q000453:epidemiology; D015995:Prevalence; D012189:Retrospective Studies; D016277:Ventricular Function, Left
vernacular_title: Perfil disrítmico ventricular em doentes com patologia valvular mitral.