Abstract
Background: This study sought to report the first-year clinical outcome with the nitinol self-expanding coil stent and to provide angiographic data on the effect of self-expansion during implantation and follow-up. Self- expanding stents do not reach their nominal diameter at implantation. The long-term effects may therefore depend, in part, on continued expansion after initial implantation. Methods: Between January 1995 and January 1996, 86 stents were deployed in 64 patients for indication of suboptimal results. All patients were clinically followed up for 1 year, and 72% had follow-up angiography. Results: The majority (55%) of the lesions were class B2 or C. Balloon angioplasty increased the minimal lumen diameter from 1.07 ± 0.73 mm to 2.24 ± 0.57 mm; stent deployment further increased the diameter to 2.63 ± 0.48 mm, and within-stent balloon dilatation to 2.96 ± 0.62 mm. Angiographic follow-up performed at 7.8 ± 1.1 months (range 7-9 months) showed that the minimal lumen diameter was 2.15 ± 0.80 mm (late lumen loss of 0.81 ± 0.69 mm), and the mean stent diameter expanded to 3.58 ± 0.48 mm (self-expanding late stent gain of 0.62 ± 0.55 mm). The extent of this expansion was inversely related to the late lumen loss (r = 0.67, slope 0.81, P <.01). At 1 year 51 (80%) of 64 patients were event free; 3 had undergone coronary artery bypass grafting, 2 had a myocardial infarction, and 9 had repeat angioplasty. In the subgroup of a simple lesion (
| Original language | English (US) |
|---|---|
| Pages (from-to) | 326-333 |
| Number of pages | 8 |
| Journal | American Heart Journal |
| Volume | 138 |
| Issue number | 2 I |
| DOIs | |
| State | Published - 1999 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
Cite this
Continued expansion of the nitinol self-expanding coronary stent : Angiographic analysis and 1-year clinical follow-up. / Roguin, A.; Grenadier, E.; Linn, S.; Markiewicz, W.; Beyar, R.
In: American Heart Journal, Vol. 138, No. 2 I, 1999, p. 326-333.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Continued expansion of the nitinol self-expanding coronary stent
T2 - Angiographic analysis and 1-year clinical follow-up
AU - Roguin, A.
AU - Grenadier, E.
AU - Linn, S.
AU - Markiewicz, W.
AU - Beyar, R.
PY - 1999
Y1 - 1999
N2 - Background: This study sought to report the first-year clinical outcome with the nitinol self-expanding coil stent and to provide angiographic data on the effect of self-expansion during implantation and follow-up. Self- expanding stents do not reach their nominal diameter at implantation. The long-term effects may therefore depend, in part, on continued expansion after initial implantation. Methods: Between January 1995 and January 1996, 86 stents were deployed in 64 patients for indication of suboptimal results. All patients were clinically followed up for 1 year, and 72% had follow-up angiography. Results: The majority (55%) of the lesions were class B2 or C. Balloon angioplasty increased the minimal lumen diameter from 1.07 ± 0.73 mm to 2.24 ± 0.57 mm; stent deployment further increased the diameter to 2.63 ± 0.48 mm, and within-stent balloon dilatation to 2.96 ± 0.62 mm. Angiographic follow-up performed at 7.8 ± 1.1 months (range 7-9 months) showed that the minimal lumen diameter was 2.15 ± 0.80 mm (late lumen loss of 0.81 ± 0.69 mm), and the mean stent diameter expanded to 3.58 ± 0.48 mm (self-expanding late stent gain of 0.62 ± 0.55 mm). The extent of this expansion was inversely related to the late lumen loss (r = 0.67, slope 0.81, P <.01). At 1 year 51 (80%) of 64 patients were event free; 3 had undergone coronary artery bypass grafting, 2 had a myocardial infarction, and 9 had repeat angioplasty. In the subgroup of a simple lesion (
AB - Background: This study sought to report the first-year clinical outcome with the nitinol self-expanding coil stent and to provide angiographic data on the effect of self-expansion during implantation and follow-up. Self- expanding stents do not reach their nominal diameter at implantation. The long-term effects may therefore depend, in part, on continued expansion after initial implantation. Methods: Between January 1995 and January 1996, 86 stents were deployed in 64 patients for indication of suboptimal results. All patients were clinically followed up for 1 year, and 72% had follow-up angiography. Results: The majority (55%) of the lesions were class B2 or C. Balloon angioplasty increased the minimal lumen diameter from 1.07 ± 0.73 mm to 2.24 ± 0.57 mm; stent deployment further increased the diameter to 2.63 ± 0.48 mm, and within-stent balloon dilatation to 2.96 ± 0.62 mm. Angiographic follow-up performed at 7.8 ± 1.1 months (range 7-9 months) showed that the minimal lumen diameter was 2.15 ± 0.80 mm (late lumen loss of 0.81 ± 0.69 mm), and the mean stent diameter expanded to 3.58 ± 0.48 mm (self-expanding late stent gain of 0.62 ± 0.55 mm). The extent of this expansion was inversely related to the late lumen loss (r = 0.67, slope 0.81, P <.01). At 1 year 51 (80%) of 64 patients were event free; 3 had undergone coronary artery bypass grafting, 2 had a myocardial infarction, and 9 had repeat angioplasty. In the subgroup of a simple lesion (
UR - http://www.scopus.com/inward/record.url?scp=0032777189&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032777189&partnerID=8YFLogxK
U2 - 10.1016/S0002-8703(99)70120-1
DO - 10.1016/S0002-8703(99)70120-1
M3 - Article
C2 - 10426847
AN - SCOPUS:0032777189
VL - 138
SP - 326
EP - 333
JO - American Heart Journal
JF - American Heart Journal
SN - 0002-8703
IS - 2 I
ER -