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Limits: Publication Date from 2003/10/01 to
2005/02/01

Summary Brief Abstract Citation ASN.1
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1: Int J
Cardiol. 2003 Dec;92(2-3):187-91.

Related
Articles,

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Extra-stent vascular
remodeling in in-stent restenosis after 188Re-MAG3 radiation
therapy.

Hong MK, Park SW, Moon DH, Oh SJ, Lee CW,
Kim YH, Kim JH, Zhang Y, Song JM, Kang DH, Song JK, Kim JJ, Park
SJ.

Department of Medicine, University of Ulsan College of
Medicine, Cardiac Center, Asan Medical Center, 388-1 Poongnap-dong,
Songpa-gu, 138-736, Seoul, South Korea

BACKGROUND: The effect of
beta-radiation on extra-stent vascular remodeling in patients with
in-stent restenosis has not been studied. The correlation between the
extent of extra-stent plaque proliferation and that of intimal
hyperplasia (IH) in in-stent restenosis in patients who received
beta-radiation therapy as well as conventional therapy has also not been
studied. METHODS: We evaluated the extra-stent remodeling in diffuse
in-stent restenosis between a beta-radiation therapy patient group
(188Re-MAG3, n=50) and a control group (n=9) by applying serial
intravascular ultrasound (IVUS) analysis. Matching (post-intervention
and follow-up) images were acquired at the follow-up lesion site and
were available in 44 of 50 patients who received radiation therapy and
in seven of nine control patients. RESULTS: There was a significant
increase of the external elastic membrane (EEM) area in both groups:
16.4 +/- 3.3 mm2 post-intervention to 17.1 +/- 3.3 mm2 at follow-up,
P=0.001 in the radiation therapy group, and 16.8 +/- 4.0 mm2
post-intervention to 17.4 +/- 4.1 mm2 at follow-up, P=0.008 in the
control group. There were no statistically significant differences of
the Delta EEM area between the two groups: 0.7 +/- 0.4 mm2 in the
radiation therapy group vs. 0.6 +/- 0.4 mm2 in the control group,
P=0.389. The Delta IH area correlated with the Delta EEM area in the
control group (r=0.826, P=0.022), but not in the radiation therapy group
(r=0.016, P=0.919). CONCLUSIONS: The findings of this IVUS study were
that positive remodeling (increased EEM area) occurred equally in both
control and irradiated patients with in-stent restenosis. The extent of
remodeling was directly in proportion to IH in the control group, but no
such relationship existed in the irradiated patient
group.

Publication Types:

Clinical Trial

PMID: 14659852 [PubMed - indexed for
MEDLINE]

Summary Brief Abstract Citation ASN.1
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