Table 2

Regional speckle tracking echocardiographic findings

VariablensCADCADP values
(n=35)FFR≥0.8 (n=17)FFR<0.8 (n=23)
Left anterior descending territoriesn=35n=8n=15
 LV longitudinal strain (%)−16.4 (−14.7, −18.6)−16.3 (−15.2, −18.2)−13.9 (−12.9, −17.2)0.22
 Postsystolic shortening (%)−0.76 (−0.25, −1.10)−0.26 (0, −1.5)−0.32 (−0.058, −1.27)0.67
 LV peak positive early strain (%)0.58 (0.23, 0.84)0.73 (0.17, 1.03)0.83 (0.61, 1.08)0.31
 Duration of LV ESL (ms)20.9 (11.0, 34.2)23.1 (8.5, 36.0)46.4 (33.8, 59.0)*†0.01
Left circumflex and right coronary artery territoriesn=35n=9n=8
 LV longitudinal strain (%)−17.5 (−16.8, −19.0)−16.3 (−15.2, −18.2)−17.5 (−16.5, −19.5)0.27
 Postsystolic shortening (%)−0.47 (−0.23, −0.81)−0.58 (−0.32, −0.99)−0.32 (−0.034, −0.69)0.30
 LV peak positive early strain (%)0.72 (0.58, 1.25)1.36 (0.58, 1.79)0.92 (0.57, 1.91)0.21
 Duration of LV ESL (ms)27.1 (15.2, 40.8)53.8 (19.8, 65.2)37.0 (28.2, 55.9)0.05
  • Values are median (25th, 75th percentiles).

  • *P<0.05 versus nsCAD group.

  • †P<0.05 versus FFR>0.8 group.

  • CAD, coronary artery disease; ESL, early systolic lengthening; FFR, fractional flow reserve; LV, left ventricular; nsCAD, non-significant coronary artery disease.