Skip to main content

Table 1 Patient characteristics and descriptive statistics

From: Global longitudinal strain correlates to systemic right ventricular function

 After atrial switch operationccTGATotal
Patients (n)7411
Male/Female (n)7/02/29/2
Age (years)30 (13-37)35 (25-67)32 (13-67)
History of clinical arrhythmia (%)865073
Moderate TR (n)201
VSD-closure (n)000
NYHA class (n)
 I527
 II213
 III000
 IV000
CMR-RVEF (%)44 (32-60)48 (23- 59)44(23 – 60)
Echocardiographic parameters
 GLS (%)-12.4 (-19.1- -11.0)-14.6 (-23.8- -7.8)-13.6 (-23.8 - -7.8)
 TAPSE (mm)17.0 (12.5-18.0)15.6 (14.3- 16.9)16.9 (12.5- 18.0)
 AP4 (%)14.3 (11.3-18.3)15.5 (7.8-19.3)14.6 (7.8-19.3)
 FAC (%)0.22 (0.18- 0.37)0.24 (0.21-0.28)0.22 (0.18 – 0.37)
 SAX (%)
 LVEF (%)
8.0 (3.5-15.8)
41 (34-47)
19.8
40 (27-40)
11.0 (3.5- 19.8)
40.5 (27-47)
NT-pro BNP (ng/L)231 (75-1349)1591 (250-3537)382 (75-2537)
Exercise stress test
 Max. heart rate (bpm)162 (109-176)179 (163-184)170 (109-184)
 Max. SBP (mmHg)170 (125-195)170 (120-170)170 (120-195)
 Max. working capacity (W)170 (105-225)210 (106-218)180 (105-225)
 Expected max. working capacity (%)66 (43-89)87 (86-87)71 (43-89)
  1. Cardiac magnetic resonance imaging (CMR), echocardiographic parameters, NT-proBNP (N-terminal pro B-type natriuretic peptide) and exercise stress test (medians) in seven patients after atrial switch operation and four ccTGA (congenitally corrected transposition of the great arteries) patients. TR tricuspid regurgitation. SBP systolic blood pressure. RVEF right ventricular ejection fraction. FAC fractional area change. GLS global longitudinal strain. TAPSE tricuspid annular plane systolic excursion. SAX short axis transection strain. AP4 apical 4 chamber strain