Morphological evaluation of intracranial target vessel restenosis following various stent implantations

Lian-bo, Gao
Yi-na, Liu
Hong-hua, Gao
Jia-mei, Wen

¹Department of Neurology, Fourth Hospital of China Medical University, Shenyang 110032, Liaoning Province, China;
²Department of Postgraduate, China Medical University, Shenyang 110001, Liaoning Province, China

[email protected]

Received: 2009-01-15

Accepted: 2009-02-16

Journal of Clinical Rehabilitative Tissue Engineering Research 13(9):p 1649-1652, February 26, 2009.

Abstract

OBJECTIVE:

To compare morphological differences of intracranial target vessel restenosis following various stent implantations.

METHODS:

182 patients with intracranial arteriostenosis were selected from the Fourth Hospitals of China Medical University between May 2003 and May 2007, and divided into bare stent group (n=74, 98 stents) and drug stent group (n=108, 137 stents). All patients were followed up for 15 months, and underwent digital subtraction angiography to evaluate morphological changes of target vessel restenosis.

RESULTS:

Compared with bare stent group, the restenosis rates were significantly reduced in drug-eluting stent group (P < 0.05), the incidence of suffusion proliferation diseases reduced but intra-stent limitation and proximal stent limitation significantly increased (P < 0.05 or 0.01).

CONCLUSION:

Incidence of restenosis is high following bare-mental stent implantation, and morphological images mainly exhibit intra-stent suffusion and intra-stent involved suffusion. While, incidence of restenosis is low following drug stent implantation, and morphological images mainly exhibit intra-stent limitation and proximal stent limitation.