title: Tricuspid annular plane systolic excursion (TAPSE) can predict the outcome of isolated tricuspid valve surgery in patients with previous cardiac surgery?
abstract: BACKGROUND
  Isolated tricuspid valve replacement is rare when performed as a re-operation after a left side operation. It is important to know the factors that determine mortality and morbidity. Tricuspid Annular Plane Systolic Excursion (TAPSE) is a scoring system that is used with non-invasive Doppler echocardiography to determine right ventricular (RV) function. This study analyzed TAPSE scores and adverse outcomes of isolated tricuspid valve surgery in patients with previous cardiac surgery.
  
  
  METHODS
  All patients who underwent tricuspid valve replacement between January 2014 and December 2015 were retrospectively reviewed. Patients having concomitant mitral or aortic valve surgery were excluded. These patients were divided into two groups: TAPSE >14 mm and TAPSE ≤14 mm. In-hospital outcomes were compared.
  
  
  RESULTS
  A total of 26 patients with severe tricuspid valve regurgitation underwent tricuspid valve replacement. There were 5 males (19.2%) and 21 females (80.8%). The average age at operation was 54.77±9.61 years (range, 27-69 years). There were 16 patients in the TAPSE >14 mm group and 10 patients in the TAPSE ≤14 mm group. The BNP in the TAPSE >14 mm group was significant (TAPSE >14 mm 672.34±229.98 versus TAPSE ≤14 mm 1,054.79±684.69, P=0.03). The median cardiopulmonary bypass (CPB) time and red blood cell (RBC) transfusions in the two groups were not different. The need for prolonged ventilatory support (>48 h) in the two groups was also not different (TAPSE> 14 mm 91.2±12.31 vs. TAPSE ≤14 mm 39.00±36.80, P=0.46). Moreover, hospital stays were similar between the two groups. No differences were found in postoperative renal and respiratory complications.
  
  
  CONCLUSIONS
  It is important to determine the right ventricule function quantitatively. The TAPSE score is an important parameter that determines the cardiac index and right ventricle function. It should be used for the prediction of mortality and morbidity with all the other parameters as a whole.
authors.affiliation: 1 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China ; 2 Cardiac Echocardiography Department, 3 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China.
authors.forename: Xiaoning
authors.initials: X
authors.lastname: Sun
authors.affiliation: 1 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China ; 2 Cardiac Echocardiography Department, 3 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China.
authors.forename: Hongqiang
authors.initials: H
authors.lastname: Zhang
authors.affiliation: 1 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China ; 2 Cardiac Echocardiography Department, 3 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China.
authors.forename: Baier
authors.initials: B
authors.lastname: Aike
authors.affiliation: 1 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China ; 2 Cardiac Echocardiography Department, 3 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China.
authors.forename: Shouguo
authors.initials: S
authors.lastname: Yang
authors.affiliation: 1 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China ; 2 Cardiac Echocardiography Department, 3 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China.
authors.forename: Zhaohua
authors.initials: Z
authors.lastname: Yang
authors.affiliation: 1 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China ; 2 Cardiac Echocardiography Department, 3 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China.
authors.forename: Lili
authors.initials: L
authors.lastname: Dong
authors.affiliation: 1 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China ; 2 Cardiac Echocardiography Department, 3 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China.
authors.forename: Fanshun
authors.initials: F
authors.lastname: Wang
authors.affiliation: 1 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China ; 2 Cardiac Echocardiography Department, 3 Cardiac Department, Zhongshan Hospital Fudan University, Shanghai 200032, China.
authors.forename: Chunsheng
authors.initials: C
authors.lastname: Wang
keywords: Tricuspid Annular Plane Systolic Excursion (TAPSE); Tricuspid valve replacement; tricuspid annular plane systolic excursion