Skip to main content

Table 1 Global parameters and analysis of the variables by age subgroups

From: Tissue Doppler Imaging and strain rate of the left atrial lateral wall: age related variations and comparison with parameters of diastolic function

  Global
Md (IQR)
≤ 30 y
n: 14
Md (IQR)
31–40 y
n: 27
Md (IQR)
41–50 y
n: 27
Md (IQR)
51–60 y
n:14
Md (IQR)
≥ 61 y
n: 9
Md (IQR)
p
Age (y) 42 (18) 23.5 (3.7) 34 (3.5) 44 (4) 53.5 (5.7) 69 (2) < 0.0001
Female (%) 54.9 64.3 33.3 63 64.3 66.7 NS
HR (bpm) 74 (15) 76.5 (11.7) 74 (15) 75 (14.2) 69.5 (9.7) 77 (12) NS
SBP (mmHg) 110.5 (16.5) 95 (18) 110 (19) 115 (16) 115 (17.5) 126 (8.7) < 0.0001
DBP (mmHg) 70.5 (10) 60 (10) 75 (10) 76 (10) 80 (10) 77.5 (10) 0.001
BSA 1.83 (0.2) 1.71 (0.1) 1.97 (0.3) 1.83 (0.19) 1.84 (0.4) 1.76 (0.1) 0.03
EF (%) 63 (11.7) 61 (8) 63 (13.5) 66 (11) 62 (7) 62.5 (12.2) NS
LA Vol Ind (ml/m2) 22.9 (8) 20.6 (6.3) 21.7 (5.4) 23 (12.4) 25.2 (5.5) 22.8 (3.8) NS
E (cm/s) 79 (22.5) 84.5 (15) 80 (23.5) 80 (17.5) 72.5 (20.5) 60 (11) 0.01
A (cm/s) 61 (23.5) 47.5 (15.2) 52 (14) 64 (20) 80 (17.7) 78 (20) < 0.0001
E/A 1.32 (0.7) 1.79 (0.7) 1.62 (0.4) 1.22 (0.5) 0.98 (0.3) 0.7 (0.3) < 0.0001
DTE (ms) 211 (70.5) 201.5 (68) 190 (44) 202 (63) 228.5 (45) 292 (152) 0.003
LmaS´ (cm/s) 10 (3) 11 (2.7) 11 (4.5) 11 (4) 9 (2.5) 10 (3) NS
LmaE´ (cm/s) 14 (7) 17.5 (1.7) 16 (5) 14 (4.5) 11 (3) 9 (2) < 0.0001
LmaA´ (cm/s) 9 (4) 6.5 (3.7) 8 (2.5) 9 (3.5) 9.5 (2.7) 13 (4) 0.001
LmaE´/LmaA´ 1.70 (1.12) 2.70 (2.48) 2.0 (1.09) 1.37 (0.65) 1.10 (0.57) 0.6 (0.37) < 0.0001
SmaS´ (cm/s) 8 (2) 7 (1) 8 (1) 8 (2) 7.5 (1) 8 (1) NS
Sma E´ (cm/s) 9 (4) 11 (3.5) 11 (5) 9 (3) 8 (2.7) 6 (2) 0.001
Sma A´ (cm/s) 9 (3) 7 (2) 8 (3.5) 9 (3) 9 (1) 11 (3) 0.001
Sma E´/Sma A´ 1.11 (0.81) 1.73 (0.49) 1.37 (0.92) 1 (0.39) 0.88 (0.31) 0.57 (0.18) < 0.0001
E/e´ 6.7 (1.7) 5.77 (1.3) 6.17 (1) 7.01 (1.5) 7.68 (2.4) 8.4 (1.7) 0.0002
S’la (cm/s) basal 11.5 (3) 10 (2) 11 (2) 12 (3) 11 (3.7) 12 (3) NS
E’la (cm/s) basal 13 (5) 15 (5) 16 (3) 13 (3) 10 (2) 9 (1) < 0.0001
A’la (cm/s) basal 12 (4) 10 (3) 11 (2) 14 (5) 12.5 (2.7) 13 (2) 0.0006
E’la/A’la basal 1.06 (0.6) 1.63 (0.5) 1.42 (0.4) 0.92 (0.2) 0.82 (0.2) 0.64 (0.1) < 0.0001
SRS (1/s) basal 2.9 (0.9) 3.6 (1.2) 3.13 (0.8) 2.62 (1.1) 2.54 (0.8) 2.17 (1.1) 0.016
SRE (1/s) basal - 2.74 (1.1) −3.4 (1) −3.06 (0.6) −2.26 (1.2) −2.31 (0.5) −1.97 (0.2) < 0.0001
SRA (1/s) basal −2.65 (1.1) −2.6 (1.2) −2.48 (1.1) −2.7 (1.1) − 2.9 (0.8) −2.87 (0.7) NS
SRE/SRA basal 1.03 (0.6) 1.23 (0.1) 1.19 (0.5) 0.78 (0.6) 0.88 (0.2) 0.69 (0.1) 0.002
  1. HR heart rate, bpm beats per minute, SBP systolic blood pressure, DBP diastolic blood pressure, BSA body surface area, EF ejection fraction, LA Vol Ind indexed left atrial volume, DTE E-wave deceleration time, Lma lateral mitral annulus, Sma septal mitral annulus, la left atrial, SR Strain Rate