Chonnam Med J.  2002 Jun;38(2):93-98.

Stent Length is the Most Important Predictive Factor for Coronary Stent Restenosis

• Lee SH
• Jeong MH
• Hong YJ
• Park OY
• Kim W
• Rhew JY
• Ahn YK
• Cho JG
• Park JC
• Ahn BH
• Kim SH
• Kang JC

Abstract

Coronary stenting is one of the most effective methods of percutaneous coronary interventions (PCI) in the treatment of intimal dissection and in the prevention of restenosis after balloon angioplasty. However, coronary stent restenosis remains a major clinical limitation. The 373 patients who underwent coronary stent implantations and follow-up coronary angiograms at Chonnam National University Hospital between June 1996 and December 1999, were divided into two groups: 123 patients with restenosis (Group A: 98 male, 25 female, average age 58.5 9.4 years) and 240 patients without restenosis (Group B: 193 male, 47 female). The prevalence of clinical diagnosis and risk factors for atherosclerosis did not differ significantly between the two groups, and neither did the indications for stenting and stent types, the reference vessel diameter and the minimal luminal diameter before stenting. However, the stent length of 23.4 7.57 mm in Group A was significantly longer than that of 20.8 6.58 mm in Group B (p=0.01). Utilizing multiple logistic regression analysis to determine the independent predictive factors for stent restenosis, the only significant factor was stent length of more than 25 mm, after correction for age, sex, risk factor, lipid profiles (OR=2.590, 95% C.I.=1.40-4.78). In conclusion, coronary stent length of greater than 25 mm is a predictive factor for restenosis after coronary stenting.

Keyword

Coronary Artery; Arterial Disease; Stents; Restenosis

MeSH Terms

Angioplasty, Balloon
Atherosclerosis
Coronary Vessels
Diagnosis
Female
Follow-Up Studies
Humans
Jeollanam-do
Logistic Models
Male
Percutaneous Coronary Intervention
Phenobarbital
Prevalence
Risk Factors
Stents*
Phenobarbital