Fig 1.
Patient flow chart.
Fig 2.
Example of the measurement of left ventricular (LV) global longitudinal strain (GLS) with a two-dimensional speckle-tracking echocardiography (2DSTE) in a patient with chronic total occlusion who underwent successful percutaneous coronary intervention (PCI).
Figure (a) and (b) showed apical four-chamber view. White broken lines indicated the LV global strain curves for GLS. Yellow arrow indicated the mean LV global peak longitudinal strain; GLS: −22.5% (c).
Table 1.
Patient baseline characteristics.
Table 2.
Lesion characteristics.
Fig 3.
Change of LV function from baseline to 9 months after PCI.
GLS in successful PCI group was significantly improved (P<0.01), whereas in failed PCI group that did not change significantly. LVEF showed no significant improvement in both successful and failed PCI groups.
Fig 4.
Change of LV volume from baseline to 9 months after PCI.
LVEDV and LVESV showed no significant improvement in both successful and failed PCI groups.
Table 3.
Echocardiographic measures.