Research Article

Comparison of Acute Recoil between Bioabsorbable Poly-L-lactic Acid XINSORB Stent and Metallic Stent in Porcine Model

Table 2

IVUS analysis of cross-sectional area of stent to assess acute stent recoil.

XINSORB ( 𝑁 = 8 )EXCEL ( 𝑁 = 8 ) 𝑃 value

CAS of immediately after stenting
 Distal part of stent (mm2) 6 . 9 6 ± 0 . 4 6 7 . 0 4 ± 0 . 2 4 0.67
 Middle part of stent (mm2) 6 . 9 5 ± 0 . 5 0 7 . 0 7 ± 0 . 3 1 0.60
 Proximal part of stent (mm2) 7 . 0 5 ± 0 . 6 2 7 . 1 8 ± 0 . 3 6 0.65
CSA of 24 hours later after stenting
 Distal part of stent (mm2) 6 . 9 9 ± 0 . 0 6 7 . 0 2 ± 0 . 0 5 0.15
 Middle part of stent (mm2) 6 . 9 7 ± 0 . 0 6 7 . 0 2 ± 0 . 0 7 0.21
 Proximal part of stent (mm2) 7 . 0 1 ± 0 . 0 8 7 . 0 7 ± 0 . 0 7 0.12

IVUS: intravascular ultrasound; CSA: cross-sectional area.