title: [Prognostic value of ventricular longitudinal systolic velocities and maximal oxygen consumption in patients with dilated cardiomyopathy].
abstract: OBJECTIVE
  To compare the prognostic value of regional longitudinal ventricular systolic velocities with that of maximal oxygen consumption (VO(2max)) in patients with dilated cardiomyopathy (DCM).
  
  
  METHODS
  VO(2max) derived from cardiopulmonary exercise tests and regional longitudinal ventricular systolic velocities obtained from tissue Doppler imaging were compared in 18 DCM patients with cardiac events (death, cardiac transplantation, hospitalization, group A) and 24 patients without cardiac events (group B). Peak velocities during isovolumic contraction (is) and ejection (ez) were interrogated at the mitral or tricuspid annulus (site 1), at the mid parts of the walls (site 3, at the level of papillary muscle), and at the midpoints (site 2) between sites 1 and 3 of interventricular septum (S), lateral wall of LV (L) and of RV (R) in apical 4 chambers view.
  
  
  RESULTS
  R1is, R2is, R2ez, R3is, S1is, S1ez, S2ez, L1is, L1ez and L2ez of group A were significantly lower than those in group B (all P < 0.05). Independent of VO(2max), high sensitivity and specificity were shown for R3ez, S1ez, L1ez, L1is, L2is and L3is in predicting cardiac events of DCM patients.
  
  
  CONCLUSIONS
  LV and RV systolic velocities could independently predict cardiac events in DCM patients.
authors: Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
authors: Yong-sheng
authors: YS
authors: Zhu
authors: G
authors: G
authors: Athanassopoulos
authors: Zhi-xia
authors: ZX
authors: Zhang
authors: Jun
authors: J
authors: Zhang
authors: Yun-qiu
authors: YQ
authors: Qian
authors: Xiao-dong
authors: XD
authors: Zhou
authors: Ding-zhang
authors: DZ
authors: Chen
authors: G
authors: G
authors: Karatasakis
authors: D V
authors: DV
authors: Cokkinos
mesh_terms: D000328:Adult; D000368:Aged; D002311:Cardiomyopathy, Dilated / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000378:metabolism; D015150:Echocardiography, Doppler; D005080:Exercise Test; D005260:Female; D005500:Follow-Up Studies; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D011379:Prognosis; D013599:Systole; D016277:Ventricular Function, Left; D016278:Ventricular Function, Right