title: Classic mitral valve prolapse causes enlargement in left ventricle even in the absence of significant mitral regurgitation.
abstract: OBJECTIVE
  The aim of this study was to evaluate whether left ventricular size was increased in patients with classic bileaflet mitral valve prolapse (MVP) in the absence of significant mitral regurgitation (MR).
  
  
  METHODS
  Patients with classic bileaflet MVP were included as the case group. Two different control groups were established. The first control group was composed of the patients with mild MR caused by the reasons except MVP. The second control group consisted of healthy individuals whose echocardiograms were normal. The patients with moderate or severe MR and having abnormality in the other valves were excluded.
  
  
  RESULTS
  There were 20 patients in each group. Systolic and diastolic diameters and volumes of left ventricle (LV) in the MVP group were significantly higher than those in the control groups. In 10 of the patients in the MVP group, LV internal diastolic diameter (LVIDD) values were measured as ≥5.7 cm, whereas increased LVIDD value was detected in only one patient in the other two control groups. There was a significant difference in terms of the presence of increased LVIDD values between the MVP group and the control groups. Despite this enlargement in the LV dimension, the LV ejection fractions were found similar in all groups. Furthermore, it was found that the lengths of both anterior and posterior mitral leaflets in MVP group were significantly higher than those in the control groups.
  
  
  CONCLUSIONS
  The LV diameters and volumes of patients with classic bileaflet MVP were found to be increased even in the absence of significant MR. These results need to be supported by large-scale clinical studies.
authors: GMMA, Haydarpasa Training Hospital, Cardiology Division, Istanbul, Turkey. oyiginer@yahoo.com
authors: Omer
authors: O
authors: Yiginer
authors: Nurgül
authors: N
authors: Keser
authors: Namik
authors: N
authors: Ozmen
authors: Alptug
authors: A
authors: Tokatli
authors: Ejder
authors: E
authors: Kardesoglu
authors: Zafer
authors: Z
authors: Isilak
authors: Omer
authors: O
authors: Uz
authors: Mehmet
authors: M
authors: Uzun
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008943:Mitral Valve / Q000000981:diagnostic imaging; D008944:Mitral Valve Insufficiency; D008945:Mitral Valve Prolapse / Q000000981:diagnostic imaging* / Q000503:physiopathology; D009929:Organ Size; D012720:Severity of Illness Index; D014463:Ultrasonography