title: Prevalence and significance of increased intraventricular velocities in healthy elderly subjects.
abstract: BACKGROUND
  Heart murmurs are common in the elderly and increased intracavitary velocities (IIV) within the left ventricle have been reported to be a cause of systolic murmur.
  
  
  OBJECTIVE
  To assess the prevalence and functional significance of IIV in healthy elderly subjects
  
  
  METHODS
  Ambulatory healthy elderly subjects were recruited from community centres and seniors' apartments. They were screened using a structured questionnaire and then underwent a comprehensive history and physical examination. Electrocardiogram, echocardiogram and 6-min walk test were performed on the same day.
  
  
  RESULTS
  Four of the 88 subjects were excluded because of significant valvular dysfunction. Ten of the remaining 84 subjects had IIV and their demographics were similar to those of the 74 subjects without IIV. Echocardiographic parameters including left ventricular size and mass were similar between the two groups. Left ventricular mass index was lower in subjects with IIV (P=0.02). Both groups had similar 6-min walk results.
  
  
  CONCLUSIONS
  In the healthy elderly who do not have valvular disease or left ventricular hypertrophy, IIV is uncommon and does not appear to have functional significance.
authors.affiliation: King Khalid National Guard Hospital, Jeddad, Saudi Arabia.
authors.forename: Abdulhalim
authors.initials: A
authors.lastname: Kinsara
authors.forename: Fauzi
authors.initials: F
authors.lastname: Ramadan
authors.forename: Kwan-Leung
authors.initials: KL
authors.lastname: Chan
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging / Q000503:physiopathology; D016275:Atrial Function / Q000502:physiology; D001783:Blood Flow Velocity / Q000502:physiology*; D015150:Echocardiography, Doppler; D005260:Female; D006325:Heart Atria / Q000000981:diagnostic imaging; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D006973:Hypertension / Q000503:physiopathology; D008297:Male; D015995:Prevalence; D011446:Prospective Studies; D012016:Reference Values; D012146:Rest / Q000502:physiology; D014636:Valsalva Maneuver / Q000502:physiology; D016276:Ventricular Function