title: The relationship between coronary sinus and impaired right ventricular myocardial performance index in mitral stenosis.
abstract: OBJECTIVE
  We aimed to investigate whether coronary sinus (CS) dilatation develops in patients with mitral stenosis (MS) and to demonstrate its relationship with the global myocardial performance of the right ventricle (RV).
  
  
  METHODS
  We enrolled 34 patients with MS who underwent echocardiography after exhibiting typical symptoms (31 female; mean age 41 ± 12 years) and 20 age- and sex-matched controls without MS who underwent echocardiography (16 female; mean age 38 ± 13 years). The RV myocardial performance index (MPI) was detected using tissue Doppler echocardiography (TDE), and maximum CS diameter was measured from the posterior atrioventricular groove in the apical four-chamber view during the ventricular systole.
  
  
  RESULTS
  The RV MPI was significantly higher in the MS group compared to the control group (0.60 ± 0.11 vs. 0.41 ± 0.08, P < 0.001). Moreover, the maximum CS dimension was higher in the MS group compared to the control group (8.5 ± 1.1 mm vs. 6.5 ± 1.4 mm, P < 0.001). The maximum CS dilatation was positively correlated with the RV MPI (r = 0.691; P < 0.001).
  
  
  CONCLUSIONS
  The RV MPI, which represents both systolic and diastolic functions, is increased in patients with MS and correlates with CS dilatation.
authors.affiliation: Faculty of Medicine, Cardiology Department, Bezmialem Vakif University, Istanbul, Turkey.
authors.forename: Mehmet Akif
authors.initials: MA
authors.lastname: Vatankulu
authors.forename: Fatih
authors.initials: F
authors.lastname: Koc
authors.forename: Enes Elvin
authors.initials: EE
authors.lastname: Gul
authors.forename: Ahmet
authors.initials: A
authors.lastname: Bacaksiz
authors.forename: Osman
authors.initials: O
authors.lastname: Sonmez
authors.forename: Kenan
authors.initials: K
authors.lastname: Demir
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Alihanoglu
authors.forename: Hatem
authors.initials: H
authors.lastname: Ari
authors.forename: Selim
authors.initials: S
authors.lastname: Ayhan
authors.forename: Mehmet
authors.initials: M
authors.lastname: Tokac
mesh_terms: D000328:Adult; D054326:Coronary Sinus / Q000000981:diagnostic imaging / Q000473:pathology* / Q000503:physiopathology*; D004108:Dilatation, Pathologic / Q000150:complications / Q000473:pathology / Q000503:physiopathology; D004452:Echocardiography / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008946:Mitral Valve Stenosis / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013223:Statistics as Topic; D018497:Ventricular Dysfunction, Right / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology*
keywords: coronary sinus; mitral stenosis; myocardial performance index; tissue Doppler echocardiography